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 253e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Millerimport android.Manifest; 2681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.appwidget.AppWidgetManager; 27499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Context; 28499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 293e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Millerimport android.content.pm.PackageManager; 30499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Handler; 31499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.HandlerThread; 32499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.IBinder; 33499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Looper; 3481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.os.Message; 352625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohenimport android.os.RemoteException; 36c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasaniimport android.os.UserHandle; 37fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chungimport android.util.Log; 383e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Millerimport android.util.Slog; 39a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chungimport android.view.LayoutInflater; 40499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.view.View; 41181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohenimport android.view.View.MeasureSpec; 4284bbb020217adcdfe0694c44ccab57e208ffde16Winson Chungimport android.view.ViewGroup; 43a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 44499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport com.android.internal.widget.IRemoteViewsAdapterConnection; 46499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport com.android.internal.widget.IRemoteViewsFactory; 47499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** 49499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An adapter to a RemoteViewsService which fetches and caches RemoteViews 50499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * to be later inflated as child views. 51499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 52499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** @hide */ 5381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungpublic class RemoteViewsAdapter extends BaseAdapter implements Handler.Callback { 543e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller private static final String MULTI_USER_PERM = Manifest.permission.INTERACT_ACROSS_USERS_FULL; 553e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller 56fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung private static final String TAG = "RemoteViewsAdapter"; 57499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 583e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller // The max number of items in the cache 59b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sDefaultCacheSize = 40; 6081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // The delay (in millis) to wait until attempting to unbind from a service after a request. 6181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // This ensures that we don't stay continually bound to the service and that it can be destroyed 6281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // if we need the memory elsewhere in the system. 63b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sUnbindServiceDelay = 5000; 64b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 65b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Default height for the default loading view, in case we cannot get inflate the first view 66b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen private static final int sDefaultLoadingViewHeight = 50; 67b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 6881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Type defs for controlling different messages across the main and worker message queues 693e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller private static final int sDefaultMessageType = 0; 7081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sUnbindServiceMessageType = 1; 7181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 7281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Context mContext; 7381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Intent mIntent; 7481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final int mAppWidgetId; 75a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung private LayoutInflater mLayoutInflater; 76499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapterServiceConnection mServiceConnection; 773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteAdapterConnectionCallback> mCallback; 78a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen private OnClickHandler mRemoteViewsOnClickHandler; 793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private FixedSizeRemoteViewsCache mCache; 80b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowLowerBound; 81b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowUpperBound; 823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 8316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // A flag to determine whether we should notify data set changed after we connect 8416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mNotifyDataSetChangedAfterOnServiceConnected = false; 8516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of requested views that are to be notified when the associated RemoteViews are 873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // loaded. 883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayoutRefSet mRequestedViews; 89499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 90499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private HandlerThread mWorkerThread; 91499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // items may be interrupted within the normally processed queues 92499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mWorkerQueue; 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mMainQueue; 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 95335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We cache the FixedSizeRemoteViewsCaches across orientation. These are the related data 963e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller // structures; 97ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani private static final HashMap<RemoteViewsCacheKey, 98ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani FixedSizeRemoteViewsCache> sCachedRemoteViewsCaches 99ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani = new HashMap<RemoteViewsCacheKey, 1004a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen FixedSizeRemoteViewsCache>(); 101ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani private static final HashMap<RemoteViewsCacheKey, Runnable> 102ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani sRemoteViewsCacheRemoveRunnables 103ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani = new HashMap<RemoteViewsCacheKey, Runnable>(); 104ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 105335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static HandlerThread sCacheRemovalThread; 106335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static Handler sCacheRemovalQueue; 107335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 108335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We keep the cache around for a duration after onSaveInstanceState for use on re-inflation. 109335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If a new RemoteViewsAdapter with the same intent / widget id isn't constructed within this 110335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // duration, the cache is dropped. 111335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static final int REMOTE_VIEWS_CACHE_DURATION = 5000; 112335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 113335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // Used to indicate to the AdapterView that it can use this Adapter immediately after 114335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // construction (happens when we have a cached FixedSizeRemoteViewsCache). 115335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private boolean mDataReady = false; 116335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 117499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 118499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An interface for the RemoteAdapter to notify other classes when adapters 119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * are actually connected to/disconnected from their actual services. 120499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 121499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public interface RemoteAdapterConnectionCallback { 12216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 12316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * @return whether the adapter was set or not. 12416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 12516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected(); 126499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 127499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected(); 1282148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 1292148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 1302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 1312148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 1322148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 1332148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged(); 134499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 135499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 136499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 137499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 1383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 1393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 1403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 1413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 142499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 14381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 14481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 14516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 14616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 148499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 149499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 152499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 153499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 15416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 15516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 15616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 157c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani RemoteViewsAdapter adapter; 15816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 1593e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller if ((adapter = mAdapter.get()) != null) { 1605771ad7bc7533f4a9bc72ac1ecabfdf6ca493b16Svet Ganov mgr.bindRemoteViewsService(context.getOpPackageName(), appWidgetId, 161976e8bd2017d0263216c62111454438cc0f130e3Svetoslav intent, asBinder()); 162c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } else { 1633e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller Slog.w(TAG, "bind: adapter was null"); 164c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } 16516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 16616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 16716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 16816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 16916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 17016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 17416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 17516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 176c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani RemoteViewsAdapter adapter; 17716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 1783e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller if ((adapter = mAdapter.get()) != null) { 1792635b7b0d33d166e081587922b2fe96bf294ac57Svetoslav mgr.unbindRemoteViewsService(context.getOpPackageName(), appWidgetId, intent); 180c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } else { 1813e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller Slog.w(TAG, "unbind: adapter was null"); 182c566b43d02596cba437e9a2723e9f989297cca72Amith Yamasani } 18316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 18416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 18516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 18616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 18716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 18816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 18916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 19016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 19116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 192499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 193c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 19416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 19716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 19816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 1993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 200499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 201499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 20216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 20316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 20416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 20516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 2063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 2073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 2083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 20916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 21016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 21116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 21216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 21316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 2142625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 2153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 2163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 2173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 2193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 2203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 2212625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 2222625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 2232625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 224499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 2273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 22816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 2293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 23016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 23161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 2323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 2333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 23416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 23516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 23616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 23716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 2383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 2393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 2403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 2413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 2423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 2453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 24616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 24716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 24816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 24916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 25016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 25516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 25616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 25716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 26016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 2633e5105351da19e639bb9c2d0b62e012779d9a7a8Jim Miller 26416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 26516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 26616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 26716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 26816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 27016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 27116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 27216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 27316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 27416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 27516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 27816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 28216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 28316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 290499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 291a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen private static class RemoteViewsFrameLayout extends FrameLayout { 2923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 295499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 296499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 2983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 2993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 300499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 301a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void onRemoteViewsLoaded(RemoteViews view, OnClickHandler handler) { 30261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 30361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 30461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 305a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen addView(view.apply(getContext(), this, handler)); 30661ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 30761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 30861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 3093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 311499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 3143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 3173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 318ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen private HashMap<RemoteViewsFrameLayout, LinkedList<RemoteViewsFrameLayout>> 319ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList; 320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 3223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 323ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList = 324ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen new HashMap<RemoteViewsFrameLayout, LinkedList<RemoteViewsFrameLayout>>(); 325499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 326499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 327499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 329499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 3353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 3393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 340499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 341ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.put(layout, refs); 3423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 3443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 345499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 346499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 3493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 3503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 351a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void notifyOnRemoteViewsLoaded(int position, RemoteViews view) { 35261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 35361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 3543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 3573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 3583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 359a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ref.onRemoteViewsLoaded(view, mRemoteViewsOnClickHandler); 360ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (mViewToLinkedList.containsKey(ref)) { 361ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.remove(ref); 362ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 3633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 3653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 371ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen * We need to remove views from this set if they have been recycled by the AdapterView. 372ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen */ 373ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen public void removeView(RemoteViewsFrameLayout rvfl) { 374ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (mViewToLinkedList.containsKey(rvfl)) { 375ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.get(rvfl).remove(rvfl); 376ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.remove(rvfl); 377ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 378ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 379ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen 380ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen /** 3813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 387ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mViewToLinkedList.clear(); 388499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 390499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3944a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsMetaData { 3953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 3973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 3983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 4003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 4013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 4023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 4033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 4043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 4053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 40716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 4083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 4103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 411499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 412499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 41316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 41416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 41516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 41616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 41716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 41816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 41916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 42016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 42116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 4223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 4233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 42416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 4253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 4263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 4273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 4283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 4293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 4303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 43116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 433499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 4353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 4363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 4373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 4383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 439499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 440499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 441499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 4433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 4443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 4453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 4463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 4473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 4483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 4493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 4506394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4516394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4526394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 453a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public boolean isViewTypeInRange(int typeId) { 454a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int mappedType = getMappedViewType(typeId); 455a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (mappedType >= viewTypeCount) { 456a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return false; 457a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 458a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return true; 459a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 460a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 461a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 4623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 463a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ViewGroup parent, Object lock, LayoutInflater layoutInflater, OnClickHandler 464a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler) { 4653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 4663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 4673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 470a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (lock) { 471b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen boolean customLoadingViewAvailable = false; 472b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 4733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 474b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Try to inflate user-specified loading view 475b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 476a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View loadingView = mUserLoadingView.apply(parent.getContext(), parent, 477a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler); 478b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, 479b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(0)); 480b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(loadingView); 481b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen customLoadingViewAvailable = true; 482b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 483b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating custom loading view, using default loading" + 484b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "view instead", e); 485b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 486b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 487b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (!customLoadingViewAvailable) { 4883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 4893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 4903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 491b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 492a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View firstView = mFirstView.apply(parent.getContext(), parent, handler); 493b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen firstView.measure( 494b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 495b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 496b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = firstView.getMeasuredHeight(); 497b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 498b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 499a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen float density = context.getResources().getDisplayMetrics().density; 500b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = (int) 501b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Math.round(sDefaultLoadingViewHeight * density); 502b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 503b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating first RemoteViews" + e); 504b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 5053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 508a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen TextView loadingTextView = (TextView) layoutInflater.inflate( 509fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 510fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 511a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 512a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 513a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 514a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 515fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 5166394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 5176394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 5183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 5196394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 5203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5216394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 5223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 5233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 5243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 5254a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsIndexMetaData { 5263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 5273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 528499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 529591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public RemoteViewsIndexMetaData(RemoteViews v, long itemId) { 530591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen set(v, itemId); 531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 533591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void set(RemoteViews v, long id) { 5343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 535a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (v != null) { 5363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 537a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 5383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 539a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 5403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 542499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 5453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 5464a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class FixedSizeRemoteViewsCache { 5473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 5483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 5504c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // The meta data objects are made final so that they can be locked on independently 5514c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // of the FixedSizeRemoteViewsCache. If we ever lock on both meta data objects, it is in 5524c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // the order mTemporaryMetaData followed by mMetaData. 5534c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mMetaData; 5544c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mTemporaryMetaData; 5553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 5573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 5583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 5593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 5633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 5643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 5663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 5673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 5703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 5713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 572b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 573b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 574b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 575b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 5763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 5773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 5783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 5793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 5813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 5823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 5833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 5853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 5863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 5873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 5883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 5893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 5903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 5913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 592b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 5933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 5953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 5963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 5973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 5983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 60016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 6013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 6023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 6033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 604b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 6053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 6063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 607499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 608591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void insert(int position, RemoteViews v, long itemId, 609591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow) { 6103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 6113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 612591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(position, visibleWindow)); 613499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 614499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 616b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 617b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 6183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 6193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 6203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 6213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 6223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 623591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition, visibleWindow)); 624499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 6273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 629591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen metaData.set(v, itemId); 6303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 631591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId)); 632499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 6343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 635499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 6373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 6383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 63916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 64016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 64116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 6423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 6433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 6443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 646499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 647499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 6493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 6503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 651499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 6533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 654499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 65516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 65616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 65716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 65816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 65916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 66216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 6633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 6643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 6653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 6663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 6673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 668aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 6695d20064651b9947a4573c9a0eefec90f66eb1b59Adam Cohen mem += v.estimateMemoryUsage(); 670aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 671499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 673499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 674591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 675591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private int getFarthestPositionFrom(int pos, ArrayList<Integer> visibleWindow) { 6763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 6773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 6783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 679591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistNotVisible = 0; 680591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistIndexNotVisible = -1; 6813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 6823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 683591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (dist > maxDistNotVisible && !visibleWindow.contains(i)) { 684591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // maxDistNotVisible/maxDistIndexNotVisible will store the index of the 685591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // farthest non-visible position 686591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistIndexNotVisible = i; 687591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistNotVisible = dist; 688b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 68935fbe2a5923d45ebcdfb3ad74efd1089a05e8737Adam Cohen if (dist >= maxDist) { 690b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 691591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // regardless of whether it is visible or not 6923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 6933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 694c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 695c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 696591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (maxDistIndexNotVisible > -1) { 697591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return maxDistIndexNotVisible; 698b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 700c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 701c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 7023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 703b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 7043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 7063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 707499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 708499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 70916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 7103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 7113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 7123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 7133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 71416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 715499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 716499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 717499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 7193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 7203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 721499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 7223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 7243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 7263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 7273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 7293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 7303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 7313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 7323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 7333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 7343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 7353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 7363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 737499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 7393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 740499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 74116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 742499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 743b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 744b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 7453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 7463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 7473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 7493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 7503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 7513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 7523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 753b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 7543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 755499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 7573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 7583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 7593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 760b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 7613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 762499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 763b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 764c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 7653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 766c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 7673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 7683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 7693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 7713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 7723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 773499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 77561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 77661ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 77761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 77861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 7793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 7803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 781b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 7823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 7833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 7843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 7863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 787499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 788499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 789499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 791ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani static class RemoteViewsCacheKey { 792ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final Intent.FilterComparison filter; 793ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final int widgetId; 794ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 795976e8bd2017d0263216c62111454438cc0f130e3Svetoslav RemoteViewsCacheKey(Intent.FilterComparison filter, int widgetId) { 796ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani this.filter = filter; 797ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani this.widgetId = widgetId; 798ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 799ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 800ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani @Override 801ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani public boolean equals(Object o) { 802ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani if (!(o instanceof RemoteViewsCacheKey)) { 803ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani return false; 804ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 805ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani RemoteViewsCacheKey other = (RemoteViewsCacheKey) o; 806976e8bd2017d0263216c62111454438cc0f130e3Svetoslav return other.filter.equals(filter) && other.widgetId == widgetId; 807ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 808ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 809ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani @Override 810ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani public int hashCode() { 811976e8bd2017d0263216c62111454438cc0f130e3Svetoslav return (filter == null ? 0 : filter.hashCode()) ^ (widgetId << 2); 812ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 813ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani } 814ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani 815976e8bd2017d0263216c62111454438cc0f130e3Svetoslav public RemoteViewsAdapter(Context context, Intent intent, 816976e8bd2017d0263216c62111454438cc0f130e3Svetoslav RemoteAdapterConnectionCallback callback) { 817499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 818499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 819976e8bd2017d0263216c62111454438cc0f130e3Svetoslav 82081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 821976e8bd2017d0263216c62111454438cc0f130e3Svetoslav 822a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 8239b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 8249b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 8259b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 8263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 827499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 82881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 82981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 83081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 83181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 83281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 83381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 834499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 835499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 836499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 83781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 838499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 839335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCacheRemovalThread == null) { 840335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread = new HandlerThread("RemoteViewsAdapter-cachePruner"); 841335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread.start(); 842335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue = new Handler(sCacheRemovalThread.getLooper()); 843335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 844335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 84581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 8463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 8473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 848335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 849ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani RemoteViewsCacheKey key = new RemoteViewsCacheKey(new Intent.FilterComparison(mIntent), 850976e8bd2017d0263216c62111454438cc0f130e3Svetoslav mAppWidgetId); 851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 853335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 8544a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mCache = sCachedRemoteViewsCaches.get(key); 8554a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 8564a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (mCache.mMetaData.count > 0) { 8574a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // As a precautionary measure, we verify that the meta data indicates a 8584a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // non-zero count before declaring that data is ready. 8594a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mDataReady = true; 8604a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8614a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 862335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } else { 863335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 8644a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8654a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (!mDataReady) { 866335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen requestBindService(); 867335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 868335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 869499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 870499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 871fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 872fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 873fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 874fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 875fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 876fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 877fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 878fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 879fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 880fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 881fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 882335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public boolean isDataReady() { 883335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen return mDataReady; 884335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 885335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 886a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 887a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteViewsOnClickHandler = handler; 888a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 889a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 890335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void saveRemoteViewsCache() { 891ac2e6dd590b42c374aaeaf75f2531ab167cbdd30Amith Yamasani final RemoteViewsCacheKey key = new RemoteViewsCacheKey( 892976e8bd2017d0263216c62111454438cc0f130e3Svetoslav new Intent.FilterComparison(mIntent), mAppWidgetId); 893335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 894335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 895335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If we already have a remove runnable posted for this key, remove it. 896335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 897335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.removeCallbacks(sRemoteViewsCacheRemoveRunnables.get(key)); 898335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 899335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 900335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 9014a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int metaDataCount = 0; 9024a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int numRemoteViewsCached = 0; 9034a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 9044a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen metaDataCount = mCache.mMetaData.count; 905335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 9064a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache) { 9074a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen numRemoteViewsCached = mCache.mIndexRemoteViews.size(); 9084a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 9094a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (metaDataCount > 0 && numRemoteViewsCached > 0) { 9104a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen sCachedRemoteViewsCaches.put(key, mCache); 9114a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 9124a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 913335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Runnable r = new Runnable() { 914335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen @Override 915335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void run() { 916335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized (sCachedRemoteViewsCaches) { 917335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 918335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCachedRemoteViewsCaches.remove(key); 919335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 920335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 921335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 922335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 923335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 924335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 925335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen }; 926335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.put(key, r); 927335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.postDelayed(r, REMOTE_VIEWS_CACHE_DURATION); 928335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 929335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 930335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 9313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 9323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 9333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 9343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 93516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 93616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 93716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 93816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 939b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 940b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 94116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 94216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 944591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(position, true); 9453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 94616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 94716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 94816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 94916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 95016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 95116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 9553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 95716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 95816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 9593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 96016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 96116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 96216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 96316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 96416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 96516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 96616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 96716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 96816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 96916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 97016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 97116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 97216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 9733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 97416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 97516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 97616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 97716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 97816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 97916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 98016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 98116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 98216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 98316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 98416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 98516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 98616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 98716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 98816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 98916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 99016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 99116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 99216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 99316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 99416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 99516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 99616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 99716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 99816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9992625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 100016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 1001fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 1002fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 10033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1006591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private void updateRemoteViews(final int position, boolean notifyWhenLoaded) { 100716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 100816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 100916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 101016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 101116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 101216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 101316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 101416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 10152625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 101616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 101716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 101916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 102016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 10212625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 10222625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 10232625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 102416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 10253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 102616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 102716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 102816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 102916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 103016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 103116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 103216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 103316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1034a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 1035a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int layoutId = remoteViews.getLayoutId(); 1036a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen RemoteViewsMetaData metaData = mCache.getMetaData(); 1037a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen boolean viewTypeInRange; 1038591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int cacheCount; 1039a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (metaData) { 1040a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen viewTypeInRange = metaData.isViewTypeInRange(layoutId); 1041591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen cacheCount = mCache.mMetaData.count; 1042a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 104316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 1044a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (viewTypeInRange) { 1045591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 1046591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, cacheCount); 1047a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Cache the RemoteViews we loaded 1048591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mCache.insert(position, remoteViews, itemId, visibleWindow); 1049a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 1050a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Notify all the views that we have previously returned for this index that 1051a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // there is new data for it. 1052a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen final RemoteViews rv = remoteViews; 1053a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (notifyWhenLoaded) { 1054a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mMainQueue.post(new Runnable() { 1055a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen @Override 1056a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void run() { 1057a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mRequestedViews.notifyOnRemoteViewsLoaded(position, rv); 1058a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 1059a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen }); 1060a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 1061a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 1062a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // We need to log an error here, as the the view type count specified by the 1063a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // factory is less than the number of view types returned. We don't return this 1064a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // view to the AdapterView, as this will cause an exception in the hosting process, 1065a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // which contains the associated AdapterView. 1066a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen Log.e(TAG, "Error: widget's RemoteViewsFactory returns more view types than " + 1067a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen " indicated by getViewTypeCount() "); 1068b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 10693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1070499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1071499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 10729b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 10739b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 10749b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 10759b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 1076499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 10773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 10803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1081499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1082499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1083499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 10843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 1085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 1086499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1087499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1088499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 10893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 10903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 10913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 10923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 10943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1096499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1097499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 10983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 10993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 11003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 11013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 11023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 11033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 11043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 11083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 11093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 11103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 11143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 11153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 11163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 11173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 11183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 1119a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 1120a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 1121a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 1122a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 1123a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 11243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 1126499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1127499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1128b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 1129b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * This method allows an AdapterView using this Adapter to provide information about which 1130b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * views are currently being displayed. This allows for certain optimizations and preloading 1131b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * which wouldn't otherwise be possible. 1132b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 1133b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen public void setVisibleRangeHint(int lowerBound, int upperBound) { 1134b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowLowerBound = lowerBound; 1135b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowUpperBound = upperBound; 1136b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1137b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 1138499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 113916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 114016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 114116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 114216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 114316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 114416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 114516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1146ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen if (convertView != null && convertView instanceof RemoteViewsFrameLayout) { 1147ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen mRequestedViews.removeView((RemoteViewsFrameLayout) convertView); 1148ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen } 1149ff067190770281b221398e4ac9992a5e4bb10b27Adam Cohen 11507ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 115116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 115216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 115316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 115416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 11553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 115616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 115716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 115816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 115916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 11603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 11613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 1162181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 1163181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 1164181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 1165181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 11663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 11673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 11683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 11713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 117216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 117316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 1174aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 1175aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 117616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1177b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 1178b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Reuse the convert view where possible 1179b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (layout != null) { 1180b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (convertViewTypeId == typeId) { 1181a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen rv.reapply(context, convertViewChild, mRemoteViewsOnClickHandler); 1182b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1183b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1184b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.removeAllViews(); 1185b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } else { 1186b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout = new RemoteViewsFrameLayout(context); 11873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1189b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Otherwise, create a new view to be returned 1190a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View newView = rv.apply(context, parent, mRemoteViewsOnClickHandler); 1191b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen newView.setTagInternal(com.android.internal.R.id.rowTypeId, 1192b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(typeId)); 1193b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(newView); 1194b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1195b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1196b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e){ 1197b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // We have to make sure that we successfully inflated the RemoteViews, if not 1198b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // we return the loading view instead. 1199b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating RemoteViews at position: " + position + ", using" + 1200b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "loading view instead" + e); 1201b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1202b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen RemoteViewsFrameLayout loadingView = null; 1203b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen final RemoteViewsMetaData metaData = mCache.getMetaData(); 1204b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen synchronized (metaData) { 1205a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1206a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 1207b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1208b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return loadingView; 1209b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } finally { 1210b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (hasNewItems) loadNextIndexInBackground(); 1211b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 121216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 121316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 121416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 121516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 121616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 121716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 1218a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1219a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 12203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 122116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 122216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 122316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 122416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 122516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 122616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 12273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 12283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1229499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1231499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 12323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 12333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 12343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 12353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1237499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1238499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 12393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 12403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 12413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 12423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1243499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 1246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 1247499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1248499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 124916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 125016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 125116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 125216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 125316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 12542625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 125516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 125616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 125716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 125816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 125916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 12602625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 12612625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 12622625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 126316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 126416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 126516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 126616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 126716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 126816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 126916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 127016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 127116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 12724c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen int newCount; 1273591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow; 12744c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen synchronized(mCache.getTemporaryMetaData()) { 12754c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen newCount = mCache.getTemporaryMetaData().count; 1276591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 1277591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, newCount); 12784c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 127916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1280b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // Pre-load (our best guess of) the views which are currently visible in the AdapterView. 1281b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // This mitigates flashing and flickering of loading views when a widget notifies that 1282b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // its data has changed. 1283591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i: visibleWindow) { 12844c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // Because temporary meta data is only ever modified from this thread (ie. 12854c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // mWorkerThread), it is safe to assume that count is a valid representation. 12864c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen if (i < newCount) { 1287591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(i, false); 12884c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 1289b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1290b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 129116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 129216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 12936364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 12946364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 12956364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 129616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 12976364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 129861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 129916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 130016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 13013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 13023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 13036364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 130416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 130516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 130616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 130716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1308591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private ArrayList<Integer> getVisibleWindow(int lower, int upper, int count) { 1309591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> window = new ArrayList<Integer>(); 13104a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 13114a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // In the case that the window is invalid or uninitialized, return an empty window. 13124a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if ((lower == 0 && upper == 0) || lower < 0 || upper < 0) { 13134a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen return window; 13144a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 13154a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 1316591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (lower <= upper) { 1317591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i <= upper; i++){ 1318591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1319591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1320591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } else { 1321591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // If the upper bound is less than the lower bound it means that the visible window 1322591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // wraps around. 1323591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i < count; i++) { 1324591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1325591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1326591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = 0; i <= upper; i++) { 1327591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1328591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1329591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1330591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return window; 1331591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1332591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 133316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 133416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 133516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 133616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 133716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 133816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 133916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 134016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 134116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 134216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 134316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 134416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 134516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 134616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 134716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 134816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 134916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 135016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 135116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 135216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 135316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 135416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 13553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 13563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1357fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1358499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1359499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 136181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 136281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 136381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 136481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 136581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 136681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 136716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 136881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 136981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 137081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 137181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 137281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 137381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 137481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 137581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 137681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 137781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 137881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 137981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 138081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 138181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 138281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1383499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 138481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1385499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 138616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1387499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1388499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 138916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 139016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1391499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1392499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1393499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1394