1499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/* 2499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Copyright (C) 2007 The Android Open Source Project 3499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * 4499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Licensed under the Apache License, Version 2.0 (the "License"); 5499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * you may not use this file except in compliance with the License. 6499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * You may obtain a copy of the License at 7499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * 8499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * http://www.apache.org/licenses/LICENSE-2.0 9499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * 10499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Unless required by applicable law or agreed to in writing, software 11499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * distributed under the License is distributed on an "AS IS" BASIS, 12499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * See the License for the specific language governing permissions and 14499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * limitations under the License. 15499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 16499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 17499cb9f516062b654952d282f211bee44c31a3c2Winson Chungpackage android.widget; 18499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chungimport java.lang.ref.WeakReference; 20591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohenimport java.util.ArrayList; 21499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport java.util.HashMap; 223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chungimport java.util.HashSet; 23c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chungimport java.util.LinkedList; 24ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 2581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.appwidget.AppWidgetManager; 26499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Context; 27499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 28499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Handler; 29499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.HandlerThread; 30499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.IBinder; 31499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Looper; 3281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.os.Message; 33c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasaniimport android.os.Process; 342625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohenimport android.os.RemoteException; 35c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasaniimport android.os.UserHandle; 36fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chungimport android.util.Log; 37a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chungimport android.view.LayoutInflater; 38499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.view.View; 39181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohenimport android.view.View.MeasureSpec; 4084bbb020217adcdfe0694c44ccab57e208ffde16Winson Chungimport android.view.ViewGroup; 41a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 42499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport com.android.internal.widget.IRemoteViewsAdapterConnection; 44499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport com.android.internal.widget.IRemoteViewsFactory; 45c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasaniimport com.android.internal.widget.LockPatternUtils; 46499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 47499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** 48499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An adapter to a RemoteViewsService which fetches and caches RemoteViews 49499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * to be later inflated as child views. 50499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 51499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** @hide */ 5281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungpublic class RemoteViewsAdapter extends BaseAdapter implements Handler.Callback { 53fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung private static final String TAG = "RemoteViewsAdapter"; 54499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 554a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // The max number of items in the cache 56b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sDefaultCacheSize = 40; 5781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // The delay (in millis) to wait until attempting to unbind from a service after a request. 5881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // This ensures that we don't stay continually bound to the service and that it can be destroyed 5981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // if we need the memory elsewhere in the system. 60b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sUnbindServiceDelay = 5000; 61b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 62b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Default height for the default loading view, in case we cannot get inflate the first view 63b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen private static final int sDefaultLoadingViewHeight = 50; 64b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 6581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Type defs for controlling different messages across the main and worker message queues 664a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static final int sDefaultMessageType = 0; 6781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sUnbindServiceMessageType = 1; 6881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 6981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Context mContext; 7081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Intent mIntent; 7181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final int mAppWidgetId; 72a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung private LayoutInflater mLayoutInflater; 73499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapterServiceConnection mServiceConnection; 743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteAdapterConnectionCallback> mCallback; 75a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen private OnClickHandler mRemoteViewsOnClickHandler; 763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private FixedSizeRemoteViewsCache mCache; 77b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowLowerBound; 78b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowUpperBound; 793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 8016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // A flag to determine whether we should notify data set changed after we connect 8116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mNotifyDataSetChangedAfterOnServiceConnected = false; 8216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of requested views that are to be notified when the associated RemoteViews are 843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // loaded. 853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayoutRefSet mRequestedViews; 86499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private HandlerThread mWorkerThread; 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // items may be interrupted within the normally processed queues 89499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mWorkerQueue; 90499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mMainQueue; 91499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 92335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We cache the FixedSizeRemoteViewsCaches across orientation. These are the related data 93ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani // structures; 94ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani private static final HashMap<RemoteViewsCacheKey, 95ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani FixedSizeRemoteViewsCache> sCachedRemoteViewsCaches 96ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani = new HashMap<RemoteViewsCacheKey, 974a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen FixedSizeRemoteViewsCache>(); 98ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani private static final HashMap<RemoteViewsCacheKey, Runnable> 99ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani sRemoteViewsCacheRemoveRunnables 100ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani = new HashMap<RemoteViewsCacheKey, Runnable>(); 101ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 102335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static HandlerThread sCacheRemovalThread; 103335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static Handler sCacheRemovalQueue; 104335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 105335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We keep the cache around for a duration after onSaveInstanceState for use on re-inflation. 106335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If a new RemoteViewsAdapter with the same intent / widget id isn't constructed within this 107335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // duration, the cache is dropped. 108335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static final int REMOTE_VIEWS_CACHE_DURATION = 5000; 109335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 110335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // Used to indicate to the AdapterView that it can use this Adapter immediately after 111335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // construction (happens when we have a cached FixedSizeRemoteViewsCache). 112335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private boolean mDataReady = false; 113335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 114c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani int mUserId; 115c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani 116499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 117499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An interface for the RemoteAdapter to notify other classes when adapters 118499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * are actually connected to/disconnected from their actual services. 119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 120499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public interface RemoteAdapterConnectionCallback { 12116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 12216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * @return whether the adapter was set or not. 12316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 12416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected(); 125499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 126499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected(); 1272148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 1282148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 1292148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 1302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 1312148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 1322148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged(); 133499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 134499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 135499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 136499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 1373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 1383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 1393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 1403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 141499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 14281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 14381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 14416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 14516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 147499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 148499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 151499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 152499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 15316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 15416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 15516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 156c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani RemoteViewsAdapter adapter; 15716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 158c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani if (Process.myUid() == Process.SYSTEM_UID 159c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani && (adapter = mAdapter.get()) != null) { 160c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mgr.bindRemoteViewsService(appWidgetId, intent, asBinder(), 161c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani new UserHandle(adapter.mUserId)); 162c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } else { 163c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mgr.bindRemoteViewsService(appWidgetId, intent, asBinder(), 164c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani Process.myUserHandle()); 165c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } 16616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 16716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 16816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 16916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 17016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 17116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 17516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 17616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 177c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani RemoteViewsAdapter adapter; 17816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 179c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani if (Process.myUid() == Process.SYSTEM_UID 180c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani && (adapter = mAdapter.get()) != null) { 181c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mgr.unbindRemoteViewsService(appWidgetId, intent, 182c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani new UserHandle(adapter.mUserId)); 183c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } else { 184c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mgr.unbindRemoteViewsService(appWidgetId, intent, Process.myUserHandle()); 185c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } 18616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 18716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 18816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 18916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 19016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 19116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 19216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 19316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 19416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 195499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 196c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 19716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 20016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 20116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 2023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 203499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 204499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 20516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 20616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 20716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 20816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 2093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 2103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 2113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 21216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 21316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 21416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 21516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 21616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 2172625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 2183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 2193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 2203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 2223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 2233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 2242625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 2252625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 2262625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 2303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 23116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 2323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 23316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 23461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 2353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 2363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 23716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 23816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 23916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 24016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 2413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 2423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 2433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 2443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 2453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 2483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 24916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 25016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 25116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 25216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 25316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 25816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 25916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 26016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 26316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 266c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 26716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 26816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 26916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 27016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 27116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 27316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 27416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 27516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 27616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 27716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 27816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 28116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 28516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 28616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 288499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 289499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 290499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 293499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 294a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen private static class RemoteViewsFrameLayout extends FrameLayout { 2953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 298499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 299499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 3013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 3023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 304a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void onRemoteViewsLoaded(RemoteViews view, OnClickHandler handler) { 30561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 30661ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 30761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 308a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen addView(view.apply(getContext(), this, handler)); 30961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 31061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 31161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 3123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 314499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 3173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 3183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 3203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 321ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen private HashMap<RemoteViewsFrameLayout, LinkedList<RemoteViewsFrameLayout>> 322ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList; 323499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 3253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 326ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList = 327ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen new HashMap<RemoteViewsFrameLayout, LinkedList<RemoteViewsFrameLayout>>(); 328499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 329499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 330499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 332499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 3383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 3403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 3423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 343499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 344ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.put(layout, refs); 3453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 3473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 348499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 349499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 3523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 3533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 354a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void notifyOnRemoteViewsLoaded(int position, RemoteViews view) { 35561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 35661ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 3573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 3603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 3613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 362a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ref.onRemoteViewsLoaded(view, mRemoteViewsOnClickHandler); 363ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (mViewToLinkedList.containsKey(ref)) { 364ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.remove(ref); 365ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 3683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 374ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen * We need to remove views from this set if they have been recycled by the AdapterView. 375ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen */ 376ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen public void removeView(RemoteViewsFrameLayout rvfl) { 377ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (mViewToLinkedList.containsKey(rvfl)) { 378ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.get(rvfl).remove(rvfl); 379ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.remove(rvfl); 380ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 381ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 382ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen 383ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen /** 3843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 390ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.clear(); 391499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 393499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3974a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsMetaData { 3983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 4003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 4013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 4033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 4043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 4053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 4063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 4073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 4083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 41016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 4113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 4133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 414499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 415499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 41616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 41716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 41816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 41916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 42016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 42116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 42216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 42316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 42416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 4253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 4263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 42716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 4283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 4293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 4303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 4313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 4323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 4333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 43416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 435499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 436499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 4383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 4393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 4403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 4413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 442499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 443499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 444499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 4463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 4473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 4483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 4493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 4503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 4513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 4523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 4536394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4546394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4556394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 456a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public boolean isViewTypeInRange(int typeId) { 457a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int mappedType = getMappedViewType(typeId); 458a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (mappedType >= viewTypeCount) { 459a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return false; 460a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 461a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return true; 462a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 463a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 464a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 4653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 466a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ViewGroup parent, Object lock, LayoutInflater layoutInflater, OnClickHandler 467a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler) { 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 4693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 4703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 4713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 473a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (lock) { 474b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen boolean customLoadingViewAvailable = false; 475b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 4763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 477b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Try to inflate user-specified loading view 478b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 479a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View loadingView = mUserLoadingView.apply(parent.getContext(), parent, 480a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler); 481b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, 482b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(0)); 483b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(loadingView); 484b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen customLoadingViewAvailable = true; 485b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 486b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating custom loading view, using default loading" + 487b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "view instead", e); 488b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 489b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 490b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (!customLoadingViewAvailable) { 4913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 4923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 4933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 494b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 495a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View firstView = mFirstView.apply(parent.getContext(), parent, handler); 496b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen firstView.measure( 497b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 498b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 499b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = firstView.getMeasuredHeight(); 500b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 501b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 502a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen float density = context.getResources().getDisplayMetrics().density; 503b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = (int) 504b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Math.round(sDefaultLoadingViewHeight * density); 505b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 506b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating first RemoteViews" + e); 507b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 5083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 511a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen TextView loadingTextView = (TextView) layoutInflater.inflate( 512fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 513fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 514a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 515a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 516a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 517a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 518fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 5196394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 5206394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 5213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 5226394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 5233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5246394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 5253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 5263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 5273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 5284a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsIndexMetaData { 5293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 5303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 532591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public RemoteViewsIndexMetaData(RemoteViews v, long itemId) { 533591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen set(v, itemId); 534499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 535499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 536591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void set(RemoteViews v, long id) { 5373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 538a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (v != null) { 5393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 540a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 5413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 542a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 5433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 545499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 5473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 5483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 5494a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class FixedSizeRemoteViewsCache { 5503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 5513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 5534c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // The meta data objects are made final so that they can be locked on independently 5544c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // of the FixedSizeRemoteViewsCache. If we ever lock on both meta data objects, it is in 5554c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // the order mTemporaryMetaData followed by mMetaData. 5564c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mMetaData; 5574c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mTemporaryMetaData; 5583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 5633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 5643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 5653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 5663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 5673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 5693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 5703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 5713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 5733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 5743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 575b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 576b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 577b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 578b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 5793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 5803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 5813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 5823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 5843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 5853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 5863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 5883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 5893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 5903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 5913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 5923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 5933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 5943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 595b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 5963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 5983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 6003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 6013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 6023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 60316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 6043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 6053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 6063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 607b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 6083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 6093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 611591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void insert(int position, RemoteViews v, long itemId, 612591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow) { 6133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 6143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 615591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(position, visibleWindow)); 616499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 617499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 619b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 620b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 6213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 6223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 6233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 6243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 6253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 626591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition, visibleWindow)); 627499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 6303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 6313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 632591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen metaData.set(v, itemId); 6333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 634591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId)); 635499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 6373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 638499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 6403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 6413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 64216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 64316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 64416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 6463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 6473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 6483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 649499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 650499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 6523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 6533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 654499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 6563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 657499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 65816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 65916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 66016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 66116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 66216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 6663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 6673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 6683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 6693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 6703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 671aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 6725d20064651b9947a4573c9a0eefec90f66eb1b59Adam Cohen mem += v.estimateMemoryUsage(); 673aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 674499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 676499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 677591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 678591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private int getFarthestPositionFrom(int pos, ArrayList<Integer> visibleWindow) { 6793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 6803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 6813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 682591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistNotVisible = 0; 683591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistIndexNotVisible = -1; 6843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 6853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 686591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (dist > maxDistNotVisible && !visibleWindow.contains(i)) { 687591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // maxDistNotVisible/maxDistIndexNotVisible will store the index of the 688591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // farthest non-visible position 689591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistIndexNotVisible = i; 690591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistNotVisible = dist; 691b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 69235fbe2a5923d45ebcdfb3ad74efd1089a05e8737Adam Cohen if (dist >= maxDist) { 693b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 694591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // regardless of whether it is visible or not 6953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 6963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 697c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 698c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 699591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (maxDistIndexNotVisible > -1) { 700591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return maxDistIndexNotVisible; 701b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 7023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 703c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 704c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 7053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 706b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 7073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 7093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 710499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 711499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 71216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 7133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 7143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 7153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 7163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 71716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 718499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 719499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 720499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 7223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 7233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 724499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 7253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 7273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 7293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 7303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 7323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 7333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 7343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 7353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 7363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 7373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 7383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 7393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 740499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 7423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 743499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 74416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 745499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 746b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 747b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 7483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 7493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 7503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 7523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 7533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 7543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 7553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 756b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 7573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 758499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 7603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 7613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 7623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 763b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 7643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 765499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 766b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 767c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 7683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 769c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 7703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 7713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 7723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 7743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 7753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 776499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 77861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 77961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 78061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 78161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 7823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 7833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 784b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 7853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 7863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 7873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 7893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 791499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 792499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 793499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 794ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani static class RemoteViewsCacheKey { 795ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final Intent.FilterComparison filter; 796ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final int widgetId; 797ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final int userId; 798ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 799ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani RemoteViewsCacheKey(Intent.FilterComparison filter, int widgetId, int userId) { 800ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani this.filter = filter; 801ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani this.widgetId = widgetId; 802ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani this.userId = userId; 803ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 804ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 805ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani @Override 806ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani public boolean equals(Object o) { 807ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani if (!(o instanceof RemoteViewsCacheKey)) { 808ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani return false; 809ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 810ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani RemoteViewsCacheKey other = (RemoteViewsCacheKey) o; 811ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani return other.filter.equals(filter) && other.widgetId == widgetId 812ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani && other.userId == userId; 813ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 814ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 815ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani @Override 816ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani public int hashCode() { 817ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani return (filter == null ? 0 : filter.hashCode()) ^ (widgetId << 2) ^ (userId << 10); 818ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 819ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 820ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 821499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public RemoteViewsAdapter(Context context, Intent intent, RemoteAdapterConnectionCallback callback) { 822499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 823499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 82481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 825a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 8269b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 8279b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 8289b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 8293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 830499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 831c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani if (Process.myUid() == Process.SYSTEM_UID) { 832c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mUserId = new LockPatternUtils(context).getCurrentUser(); 833c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } else { 834c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani mUserId = UserHandle.myUserId(); 835c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } 83681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 83781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 83881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 83981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 84081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 84181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 842499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 843499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 844499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 84581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 846499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 847335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCacheRemovalThread == null) { 848335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread = new HandlerThread("RemoteViewsAdapter-cachePruner"); 849335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread.start(); 850335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue = new Handler(sCacheRemovalThread.getLooper()); 851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 85381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 8543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 8553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 856335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 857ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani RemoteViewsCacheKey key = new RemoteViewsCacheKey(new Intent.FilterComparison(mIntent), 858ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani mAppWidgetId, mUserId); 859335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 860335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 861335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 8624a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mCache = sCachedRemoteViewsCaches.get(key); 8634a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 8644a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (mCache.mMetaData.count > 0) { 8654a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // As a precautionary measure, we verify that the meta data indicates a 8664a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // non-zero count before declaring that data is ready. 8674a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mDataReady = true; 8684a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8694a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 870335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } else { 871335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 8724a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8734a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (!mDataReady) { 874335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen requestBindService(); 875335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 876335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 877499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 878499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 879fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 880fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 881fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 882fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 883fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 884fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 885fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 886fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 887fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 888fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 889fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 890335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public boolean isDataReady() { 891335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen return mDataReady; 892335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 893335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 894a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 895a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteViewsOnClickHandler = handler; 896a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 897a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 898335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void saveRemoteViewsCache() { 899ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final RemoteViewsCacheKey key = new RemoteViewsCacheKey( 900ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani new Intent.FilterComparison(mIntent), mAppWidgetId, mUserId); 901335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 902335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 903335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If we already have a remove runnable posted for this key, remove it. 904335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 905335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.removeCallbacks(sRemoteViewsCacheRemoveRunnables.get(key)); 906335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 907335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 908335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 9094a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int metaDataCount = 0; 9104a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int numRemoteViewsCached = 0; 9114a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 9124a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen metaDataCount = mCache.mMetaData.count; 913335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 9144a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache) { 9154a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen numRemoteViewsCached = mCache.mIndexRemoteViews.size(); 9164a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 9174a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (metaDataCount > 0 && numRemoteViewsCached > 0) { 9184a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen sCachedRemoteViewsCaches.put(key, mCache); 9194a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 9204a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 921335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Runnable r = new Runnable() { 922335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen @Override 923335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void run() { 924335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized (sCachedRemoteViewsCaches) { 925335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 926335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCachedRemoteViewsCaches.remove(key); 927335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 928335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 929335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 930335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 931335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 932335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 933335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen }; 934335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.put(key, r); 935335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.postDelayed(r, REMOTE_VIEWS_CACHE_DURATION); 936335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 937335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 938335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 9393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 9403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 9413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 9423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 94416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 94516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 94616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 947b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 948b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 94916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 95016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 95116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 952591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(position, true); 9533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 95416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 95516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 95616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 95716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 95816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 95916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 9633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 96516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 96616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 9673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 96816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 96916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 97016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 97116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 97216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 97316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 97416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 97516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 97616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 97716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 97816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 97916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 98016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 9813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 98216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 98316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 98416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 98516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 98616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 98716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 98816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 98916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 99016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 99116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 99216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 99316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 99416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 99516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 99616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 99716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 99816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 99916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 100016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 100116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 100216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 100316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 100416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 100516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 100616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 10072625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 100816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 1009fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 1010fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 10113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1014591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private void updateRemoteViews(final int position, boolean notifyWhenLoaded) { 101516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 101616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 101816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 101916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 102016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 102116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 102294022e8997084be458a1faf46e72efab1d59e973Amith Yamasani remoteViews.setUser(new UserHandle(mUserId)); 102316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 10242625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 102516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 102616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 102716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 102816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 102916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 10302625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 10312625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 10322625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 103316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 10343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 103516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 103616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 103716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 103816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 103916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 104016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 104116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 104216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1043a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 1044a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int layoutId = remoteViews.getLayoutId(); 1045a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen RemoteViewsMetaData metaData = mCache.getMetaData(); 1046a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen boolean viewTypeInRange; 1047591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int cacheCount; 1048a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (metaData) { 1049a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen viewTypeInRange = metaData.isViewTypeInRange(layoutId); 1050591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen cacheCount = mCache.mMetaData.count; 1051a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 105216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 1053a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (viewTypeInRange) { 1054591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 1055591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, cacheCount); 1056a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Cache the RemoteViews we loaded 1057591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mCache.insert(position, remoteViews, itemId, visibleWindow); 1058a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 1059a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Notify all the views that we have previously returned for this index that 1060a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // there is new data for it. 1061a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen final RemoteViews rv = remoteViews; 1062a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (notifyWhenLoaded) { 1063a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mMainQueue.post(new Runnable() { 1064a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen @Override 1065a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void run() { 1066a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mRequestedViews.notifyOnRemoteViewsLoaded(position, rv); 1067a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 1068a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen }); 1069a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 1070a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 1071a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // We need to log an error here, as the the view type count specified by the 1072a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // factory is less than the number of view types returned. We don't return this 1073a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // view to the AdapterView, as this will cause an exception in the hosting process, 1074a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // which contains the associated AdapterView. 1075a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen Log.e(TAG, "Error: widget's RemoteViewsFactory returns more view types than " + 1076a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen " indicated by getViewTypeCount() "); 1077b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 10783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1079499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1080499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 10819b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 10829b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 10839b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 10849b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 1085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 10863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 10893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1090499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1091499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1092499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 10933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 1094499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 1095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1096499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1097499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 10983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 10993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 11003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 11013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 11033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1104499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1105499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1106499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 11073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 11083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 11093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 11103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 11113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 11123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 11133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 11173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 11183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 11193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 11233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 11243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 11253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 11263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 11273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 1128a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 1129a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 1130a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 1131a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 1132a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 11333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 1135499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1136499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1137b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 1138b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * This method allows an AdapterView using this Adapter to provide information about which 1139b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * views are currently being displayed. This allows for certain optimizations and preloading 1140b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * which wouldn't otherwise be possible. 1141b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 1142b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen public void setVisibleRangeHint(int lowerBound, int upperBound) { 1143b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowLowerBound = lowerBound; 1144b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowUpperBound = upperBound; 1145b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1146b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 1147499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 114816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 114916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 115016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 115116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 115216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 115316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 115416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1155ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (convertView != null && convertView instanceof RemoteViewsFrameLayout) { 1156ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mRequestedViews.removeView((RemoteViewsFrameLayout) convertView); 1157ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 1158ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen 11597ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 116016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 116116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 116216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 116316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 11643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 116516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 116616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 116716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 116816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 11693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 11703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 1171181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 1172181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 1173181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 1174181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 11753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 11763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 11773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 11803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 118116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 118216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 1183aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 1184aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 118516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1186b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 1187b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Reuse the convert view where possible 1188b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (layout != null) { 1189b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (convertViewTypeId == typeId) { 1190a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen rv.reapply(context, convertViewChild, mRemoteViewsOnClickHandler); 1191b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1192b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1193b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.removeAllViews(); 1194b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } else { 1195b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout = new RemoteViewsFrameLayout(context); 11963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1198b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Otherwise, create a new view to be returned 1199a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View newView = rv.apply(context, parent, mRemoteViewsOnClickHandler); 1200b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen newView.setTagInternal(com.android.internal.R.id.rowTypeId, 1201b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(typeId)); 1202b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(newView); 1203b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1204b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1205b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e){ 1206b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // We have to make sure that we successfully inflated the RemoteViews, if not 1207b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // we return the loading view instead. 1208b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating RemoteViews at position: " + position + ", using" + 1209b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "loading view instead" + e); 1210b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1211b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen RemoteViewsFrameLayout loadingView = null; 1212b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen final RemoteViewsMetaData metaData = mCache.getMetaData(); 1213b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen synchronized (metaData) { 1214a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1215a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 1216b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1217b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return loadingView; 1218b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } finally { 1219b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (hasNewItems) loadNextIndexInBackground(); 1220b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 122116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 122216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 122316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 122416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 122516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 122616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 1227a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1228a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 12293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 123016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 123116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 123216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 123316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 123416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 123516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 12363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 12373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1238499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1239499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 12413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 12423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 12433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 12443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1247499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 12483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 12493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 12503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 12513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 1255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 1256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 125816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 125916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 126016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 126116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 126216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 12632625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 126416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 126516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 126616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 126716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 126816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 12692625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 12702625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 12712625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 127216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 127316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 127416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 127516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 127616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 127716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 127816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 127916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 128016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 12814c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen int newCount; 1282591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow; 12834c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen synchronized(mCache.getTemporaryMetaData()) { 12844c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen newCount = mCache.getTemporaryMetaData().count; 1285591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 1286591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, newCount); 12874c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 128816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1289b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // Pre-load (our best guess of) the views which are currently visible in the AdapterView. 1290b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // This mitigates flashing and flickering of loading views when a widget notifies that 1291b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // its data has changed. 1292591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i: visibleWindow) { 12934c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // Because temporary meta data is only ever modified from this thread (ie. 12944c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // mWorkerThread), it is safe to assume that count is a valid representation. 12954c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen if (i < newCount) { 1296591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(i, false); 12974c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 1298b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1299b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 130016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 130116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 13026364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 13036364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 13046364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 130516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 13066364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 130761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 130816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 130916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 13103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 13113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 13126364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 131316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 131416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 131516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 131616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1317591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private ArrayList<Integer> getVisibleWindow(int lower, int upper, int count) { 1318591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> window = new ArrayList<Integer>(); 13194a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 13204a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // In the case that the window is invalid or uninitialized, return an empty window. 13214a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if ((lower == 0 && upper == 0) || lower < 0 || upper < 0) { 13224a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen return window; 13234a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 13244a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 1325591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (lower <= upper) { 1326591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i <= upper; i++){ 1327591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1328591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1329591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } else { 1330591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // If the upper bound is less than the lower bound it means that the visible window 1331591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // wraps around. 1332591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i < count; i++) { 1333591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1334591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1335591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = 0; i <= upper; i++) { 1336591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1337591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1338591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1339591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return window; 1340591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1341591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 134216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 134316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 134416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 134516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 134616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 134716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 134816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 134916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 135016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 135116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 135216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 135316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 135416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 135516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 135616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 135716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 135816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 135916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 136016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 136116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 136216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 136316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 13643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 13653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1366fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 137081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 137181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 137281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 137381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 137481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 137581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 137616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 137781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 137881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 137981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 138081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 138181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 138281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 138381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 138481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 138581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 138681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 138781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 138881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 138981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 139081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 139181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1392499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 139381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1394499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 139516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1396499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1397499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 139816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 139916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1400499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1401499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1402499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1403