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; 2481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.appwidget.AppWidgetManager; 25499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Context; 26499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 27499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Handler; 28499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.HandlerThread; 29499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.IBinder; 30499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.os.Looper; 3181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport android.os.Message; 322625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohenimport android.os.RemoteException; 33fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chungimport android.util.Log; 34335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport android.util.Pair; 35a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chungimport android.view.LayoutInflater; 36499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.view.View; 37181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohenimport android.view.View.MeasureSpec; 3884bbb020217adcdfe0694c44ccab57e208ffde16Winson Chungimport android.view.ViewGroup; 39a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 40499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport com.android.internal.widget.IRemoteViewsAdapterConnection; 42499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport com.android.internal.widget.IRemoteViewsFactory; 43499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 44499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** 45499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An adapter to a RemoteViewsService which fetches and caches RemoteViews 46499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * to be later inflated as child views. 47499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 48499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** @hide */ 4981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungpublic class RemoteViewsAdapter extends BaseAdapter implements Handler.Callback { 50fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung private static final String TAG = "RemoteViewsAdapter"; 51499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 524a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // The max number of items in the cache 53b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sDefaultCacheSize = 40; 5481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // The delay (in millis) to wait until attempting to unbind from a service after a request. 5581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // This ensures that we don't stay continually bound to the service and that it can be destroyed 5681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // if we need the memory elsewhere in the system. 57b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sUnbindServiceDelay = 5000; 58b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 59b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Default height for the default loading view, in case we cannot get inflate the first view 60b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen private static final int sDefaultLoadingViewHeight = 50; 61b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 6281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Type defs for controlling different messages across the main and worker message queues 634a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static final int sDefaultMessageType = 0; 6481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sUnbindServiceMessageType = 1; 6581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 6681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Context mContext; 6781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Intent mIntent; 6881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final int mAppWidgetId; 69a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung private LayoutInflater mLayoutInflater; 70499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapterServiceConnection mServiceConnection; 713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteAdapterConnectionCallback> mCallback; 72a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen private OnClickHandler mRemoteViewsOnClickHandler; 733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private FixedSizeRemoteViewsCache mCache; 74b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowLowerBound; 75b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen private int mVisibleWindowUpperBound; 763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // A flag to determine whether we should notify data set changed after we connect 7816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mNotifyDataSetChangedAfterOnServiceConnected = false; 7916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of requested views that are to be notified when the associated RemoteViews are 813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // loaded. 823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayoutRefSet mRequestedViews; 83499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private HandlerThread mWorkerThread; 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // items may be interrupted within the normally processed queues 86499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mWorkerQueue; 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mMainQueue; 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 89335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We cache the FixedSizeRemoteViewsCaches across orientation. These are the related data 90335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // structures; 914a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static final HashMap<Pair<Intent.FilterComparison, Integer>, FixedSizeRemoteViewsCache> 92335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCachedRemoteViewsCaches = new HashMap<Pair<Intent.FilterComparison, Integer>, 934a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen FixedSizeRemoteViewsCache>(); 94335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static final HashMap<Pair<Intent.FilterComparison, Integer>, Runnable> 95335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables = new HashMap<Pair<Intent.FilterComparison, Integer>, 96335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Runnable>(); 97335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static HandlerThread sCacheRemovalThread; 98335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static Handler sCacheRemovalQueue; 99335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 100335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // We keep the cache around for a duration after onSaveInstanceState for use on re-inflation. 101335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If a new RemoteViewsAdapter with the same intent / widget id isn't constructed within this 102335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // duration, the cache is dropped. 103335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private static final int REMOTE_VIEWS_CACHE_DURATION = 5000; 104335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 105335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // Used to indicate to the AdapterView that it can use this Adapter immediately after 106335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // construction (happens when we have a cached FixedSizeRemoteViewsCache). 107335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen private boolean mDataReady = false; 108335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 109499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 110499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An interface for the RemoteAdapter to notify other classes when adapters 111499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * are actually connected to/disconnected from their actual services. 112499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 113499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public interface RemoteAdapterConnectionCallback { 11416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 11516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * @return whether the adapter was set or not. 11616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 11716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected(); 118499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected(); 1202148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 1212148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 1222148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 1232148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 1242148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 1252148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged(); 126499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 127499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 128499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 129499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 1303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 1313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 1323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 1333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 134499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 13581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 13681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 13716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 13816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 140499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 141499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 144499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 145499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 14616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 14716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 14816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 14916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 15016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.bindRemoteViewsService(appWidgetId, intent, asBinder()); 15116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 15216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 15316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 15416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 15516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 15616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 15716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 15816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 15916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 16016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 16116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 16216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 16316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.unbindRemoteViewsService(appWidgetId, intent); 16416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 16516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 16616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 16716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 16816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 16916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 17116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 17216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 173499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 174c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 17516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 17816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 17916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 1803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 181499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 182499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 18316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 18416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 18516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 18616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 1873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 1883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 1893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 19016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 19116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 19216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 19316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 19416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1952625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 1963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 1973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 1983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 2003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 2013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 2022625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 2032625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 2042625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 205499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 2083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 20916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 2103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 21116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 21261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 2133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 2143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 21516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 21616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 21716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 21816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 2193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 2203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 2213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 2223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 2233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 2263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 22716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 22816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 22916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 23016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 23116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 232499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 233499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 234499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 235499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 23616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 23716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 23816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 24116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 244c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 24516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 24616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 24716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 24816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 24916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 25116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 25216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 25316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 25416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 25516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 25616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 25916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 26316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 26416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 266499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 272a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen private static class RemoteViewsFrameLayout extends FrameLayout { 2733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 2793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 2803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 282a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void onRemoteViewsLoaded(RemoteViews view, OnClickHandler handler) { 28361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 28461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 28561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 286a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen addView(view.apply(getContext(), this, handler)); 28761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 28861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 28961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 2903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 292499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 2953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 2963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 2983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 299499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 3013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 302499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 304499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 306499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 3083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 3103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 3123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 3143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 3163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 3203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 321499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 322499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 3253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 3263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 327a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void notifyOnRemoteViewsLoaded(int position, RemoteViews view) { 32861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 32961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 3303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 335a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ref.onRemoteViewsLoaded(view, mRemoteViewsOnClickHandler); 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 338499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 341499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 342499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 343499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 351499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 353499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3574a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsMetaData { 3583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 3603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 3613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 3633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 3643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 3653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 3673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 3683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 37016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 3713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 3733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 374499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 375499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 37616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 37716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 37816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 37916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 38016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 38116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 38216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 38316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 38416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 38716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 3893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 3903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 3913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 3923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 3933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 39416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 395499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 396499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 3983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 3993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 4003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 4013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 402499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 403499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 404499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 4063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 4073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 4083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 4093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 4103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 4113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 4123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 4136394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4146394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4156394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 416a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public boolean isViewTypeInRange(int typeId) { 417a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int mappedType = getMappedViewType(typeId); 418a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (mappedType >= viewTypeCount) { 419a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return false; 420a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 421a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen return true; 422a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 423a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 424a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 4253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 426a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen ViewGroup parent, Object lock, LayoutInflater layoutInflater, OnClickHandler 427a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler) { 4283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 4293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 4303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 4313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 433a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (lock) { 434b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen boolean customLoadingViewAvailable = false; 435b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 4363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 437b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Try to inflate user-specified loading view 438b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 439a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View loadingView = mUserLoadingView.apply(parent.getContext(), parent, 440a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen handler); 441b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, 442b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(0)); 443b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(loadingView); 444b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen customLoadingViewAvailable = true; 445b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 446b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating custom loading view, using default loading" + 447b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "view instead", e); 448b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 449b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 450b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (!customLoadingViewAvailable) { 4513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 4523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 4533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 454b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 455a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View firstView = mFirstView.apply(parent.getContext(), parent, handler); 456b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen firstView.measure( 457b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 458b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 459b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = firstView.getMeasuredHeight(); 460b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 461b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 462a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen float density = context.getResources().getDisplayMetrics().density; 463b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = (int) 464b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Math.round(sDefaultLoadingViewHeight * density); 465b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 466b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating first RemoteViews" + e); 467b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 471a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen TextView loadingTextView = (TextView) layoutInflater.inflate( 472fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 473fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 474a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 475a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 476a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 477a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 478fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 4796394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4806394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 4826394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4846394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 4873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4884a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class RemoteViewsIndexMetaData { 4893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 4903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 491499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 492591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public RemoteViewsIndexMetaData(RemoteViews v, long itemId) { 493591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen set(v, itemId); 494499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 495499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 496591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void set(RemoteViews v, long id) { 4973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 498a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (v != null) { 4993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 500a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 5013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 502a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 5033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 5043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 505499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 5073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 5083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 5094a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen private static class FixedSizeRemoteViewsCache { 5103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 5113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 5134c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // The meta data objects are made final so that they can be locked on independently 5144c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // of the FixedSizeRemoteViewsCache. If we ever lock on both meta data objects, it is in 5154c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // the order mTemporaryMetaData followed by mMetaData. 5164c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mMetaData; 5174c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen private final RemoteViewsMetaData mTemporaryMetaData; 5183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 5203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 5213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 5223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 5233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 5243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 5253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 5263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 5273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 5293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 5303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 5313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 5333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 5343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 535b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 536b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 537b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 538b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 5393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 5403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 5413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 5423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 5453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 5463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 5483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 5493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 5503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 5513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 5523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 5533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 5543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 555b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 5563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 5583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 5593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 56316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 5643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 5653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 5663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 567b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 5693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 570499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 571591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen public void insert(int position, RemoteViews v, long itemId, 572591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow) { 5733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 5743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 575591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(position, visibleWindow)); 576499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 577499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 579b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 580b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 5813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 5823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 5833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 5843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 5853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 586591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition, visibleWindow)); 587499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 5903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 592591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen metaData.set(v, itemId); 5933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 594591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId)); 595499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 5973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 598499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 6003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 6013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 60216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 60316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 60416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 6053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 6063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 6073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 6083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 609499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 6123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 6133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 614499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 6163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 617499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 61816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 61916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 62016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 62116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 62216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 62316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 62416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 62516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 6263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 6273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 6293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 6303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 631aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 6325d20064651b9947a4573c9a0eefec90f66eb1b59Adam Cohen mem += v.estimateMemoryUsage(); 633aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 634499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 636499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 637591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 638591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private int getFarthestPositionFrom(int pos, ArrayList<Integer> visibleWindow) { 6393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 6403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 6413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 642591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistNotVisible = 0; 643591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int maxDistIndexNotVisible = -1; 6443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 646591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (dist > maxDistNotVisible && !visibleWindow.contains(i)) { 647591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // maxDistNotVisible/maxDistIndexNotVisible will store the index of the 648591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // farthest non-visible position 649591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistIndexNotVisible = i; 650591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen maxDistNotVisible = dist; 651b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 65235fbe2a5923d45ebcdfb3ad74efd1089a05e8737Adam Cohen if (dist >= maxDist) { 653b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 654591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // regardless of whether it is visible or not 6553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 6563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 657c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 658c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 659591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (maxDistIndexNotVisible > -1) { 660591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return maxDistIndexNotVisible; 661b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 663c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 664c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 666b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 6673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 6693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 670499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 671499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 67216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 6733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 6743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 6753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 6763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 67716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 678499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 679499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 680499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 6823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 6833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 684499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 6873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 6893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 6903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 6923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 6933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 6943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 6953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 6963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 6973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 6983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 6993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 700499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 7023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 703499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 70416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 705499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 706b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 707b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 7083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 7093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 7103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 7123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 7133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 7143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 7153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 716b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 7173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 718499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 7203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 7213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 7223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 723b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 7243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 725499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 726b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 727c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 7283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 729c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 7303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 7313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 7323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 7343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 7353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 736499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 7373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 73861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 73961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 74061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 74161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 7423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 7433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 744b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 7453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 7463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 7473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 7493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 750499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 751499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 752499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 753499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 754499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public RemoteViewsAdapter(Context context, Intent intent, RemoteAdapterConnectionCallback callback) { 755499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 756499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 75781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 758a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 7599b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 7609b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 7619b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 7623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 763499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 76481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 76581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 76681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 76781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 76881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 76981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 770499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 771499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 772499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 77381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 774499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 775335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCacheRemovalThread == null) { 776335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread = new HandlerThread("RemoteViewsAdapter-cachePruner"); 777335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalThread.start(); 778335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue = new Handler(sCacheRemovalThread.getLooper()); 779335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 780335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 78181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 7823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 7833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 784335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 785335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Pair<Intent.FilterComparison, Integer> key = new Pair<Intent.FilterComparison, Integer> 786335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen (new Intent.FilterComparison(mIntent), mAppWidgetId); 787335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 788335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 789335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 7904a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mCache = sCachedRemoteViewsCaches.get(key); 7914a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 7924a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (mCache.mMetaData.count > 0) { 7934a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // As a precautionary measure, we verify that the meta data indicates a 7944a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // non-zero count before declaring that data is ready. 7954a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen mDataReady = true; 7964a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 7974a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 798335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } else { 799335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 8004a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8014a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (!mDataReady) { 802335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen requestBindService(); 803335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 804335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 805499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 806499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 807fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 808fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 809fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 810fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 811fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 812fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 813fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 814fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 815fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 816fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 817fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 818335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public boolean isDataReady() { 819335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen return mDataReady; 820335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 821335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 822a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 823a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteViewsOnClickHandler = handler; 824a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 825a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 826335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void saveRemoteViewsCache() { 827335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen final Pair<Intent.FilterComparison, Integer> key = new Pair<Intent.FilterComparison, 828335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Integer> (new Intent.FilterComparison(mIntent), mAppWidgetId); 829335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 830335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized(sCachedRemoteViewsCaches) { 831335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen // If we already have a remove runnable posted for this key, remove it. 832335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 833335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.removeCallbacks(sRemoteViewsCacheRemoveRunnables.get(key)); 834335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 835335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 836335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 8374a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int metaDataCount = 0; 8384a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen int numRemoteViewsCached = 0; 8394a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache.mMetaData) { 8404a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen metaDataCount = mCache.mMetaData.count; 841335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 8424a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen synchronized (mCache) { 8434a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen numRemoteViewsCached = mCache.mIndexRemoteViews.size(); 8444a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8454a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if (metaDataCount > 0 && numRemoteViewsCached > 0) { 8464a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen sCachedRemoteViewsCaches.put(key, mCache); 8474a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 8484a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 849335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen Runnable r = new Runnable() { 850335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen @Override 851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen public void run() { 852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen synchronized (sCachedRemoteViewsCaches) { 853335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sCachedRemoteViewsCaches.containsKey(key)) { 854335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCachedRemoteViewsCaches.remove(key); 855335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 856335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (sRemoteViewsCacheRemoveRunnables.containsKey(key)) { 857335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.remove(key); 858335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 859335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 860335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 861335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen }; 862335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sRemoteViewsCacheRemoveRunnables.put(key, r); 863335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen sCacheRemovalQueue.postDelayed(r, REMOTE_VIEWS_CACHE_DURATION); 864335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 865335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 866335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 8673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 8683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 8693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 8703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 87116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 87216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 87316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 87416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 875b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 876b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 87716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 87816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 87916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 880591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(position, true); 8813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 88216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 88316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 88416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 88516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 88616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 88716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 8913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 89316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 89416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 8953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 89616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 89716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 89816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 89916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 90016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 90116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 90216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 90316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 90416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 90516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 90616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 90716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 90816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 9093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 91016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 91116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 91216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 91316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 91416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 91516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 91616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 91716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 91816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 91916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 92016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 92116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 92216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 92316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 92416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 92516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 92616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 92716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 92816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 92916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 93016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 93116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 93216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 93316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 93416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9352625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 93616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 937fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 938fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 9393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 942591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private void updateRemoteViews(final int position, boolean notifyWhenLoaded) { 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 94416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 94516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 94616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 94716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 94816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 94916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 95016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 9512625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 95216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 95316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 95416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 95516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 95616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 9572625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 9582625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 9592625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 96016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 96216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 96316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 96416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 96516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 96616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 96716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 96816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 96916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 970a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 971a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen int layoutId = remoteViews.getLayoutId(); 972a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen RemoteViewsMetaData metaData = mCache.getMetaData(); 973a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen boolean viewTypeInRange; 974591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen int cacheCount; 975a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen synchronized (metaData) { 976a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen viewTypeInRange = metaData.isViewTypeInRange(layoutId); 977591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen cacheCount = mCache.mMetaData.count; 978a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 97916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 980a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (viewTypeInRange) { 981591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 982591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, cacheCount); 983a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Cache the RemoteViews we loaded 984591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mCache.insert(position, remoteViews, itemId, visibleWindow); 985a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen 986a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // Notify all the views that we have previously returned for this index that 987a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // there is new data for it. 988a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen final RemoteViews rv = remoteViews; 989a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen if (notifyWhenLoaded) { 990a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mMainQueue.post(new Runnable() { 991a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen @Override 992a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen public void run() { 993a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen mRequestedViews.notifyOnRemoteViewsLoaded(position, rv); 994a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 995a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen }); 996a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } 997a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen } else { 998a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // We need to log an error here, as the the view type count specified by the 999a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // factory is less than the number of view types returned. We don't return this 1000a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // view to the AdapterView, as this will cause an exception in the hosting process, 1001a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen // which contains the associated AdapterView. 1002a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen Log.e(TAG, "Error: widget's RemoteViewsFactory returns more view types than " + 1003a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen " indicated by getViewTypeCount() "); 1004b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 10053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1006499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1007499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 10089b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 10099b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 10109b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 10119b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 1012499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 10133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 10163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1017499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1018499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1019499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 10203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 1021499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 1022499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1023499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1024499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 10253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 10263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 10273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 10283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 10303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1031499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1033499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 10343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 10353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 10363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 10373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 10383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 10393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 10403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 10433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 10463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 10493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 10503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 10513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 10523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 10533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 10543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 1055a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 1056a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 1057a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 1058a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 1059a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 10603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 1062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1064b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 1065b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * This method allows an AdapterView using this Adapter to provide information about which 1066b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * views are currently being displayed. This allows for certain optimizations and preloading 1067b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * which wouldn't otherwise be possible. 1068b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 1069b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen public void setVisibleRangeHint(int lowerBound, int upperBound) { 1070b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowLowerBound = lowerBound; 1071b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mVisibleWindowUpperBound = upperBound; 1072b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1073b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 1074499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 107516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 107616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 107716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 107816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 107916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 108016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 108116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 10827ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 108316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 108416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 108516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 108616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 10873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 108816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 108916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 109016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 109116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 10923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 10933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 1094181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 1095181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 1096181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 1097181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 10983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 10993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 11003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 11023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 11033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 110416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 110516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 1106aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 1107aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 110816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1109b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 1110b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Reuse the convert view where possible 1111b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (layout != null) { 1112b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (convertViewTypeId == typeId) { 1113a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen rv.reapply(context, convertViewChild, mRemoteViewsOnClickHandler); 1114b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1115b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1116b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.removeAllViews(); 1117b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } else { 1118b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout = new RemoteViewsFrameLayout(context); 11193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1121b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Otherwise, create a new view to be returned 1122a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen View newView = rv.apply(context, parent, mRemoteViewsOnClickHandler); 1123b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen newView.setTagInternal(com.android.internal.R.id.rowTypeId, 1124b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(typeId)); 1125b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(newView); 1126b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 1127b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1128b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e){ 1129b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // We have to make sure that we successfully inflated the RemoteViews, if not 1130b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // we return the loading view instead. 1131b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating RemoteViews at position: " + position + ", using" + 1132b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "loading view instead" + e); 1133b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 1134b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen RemoteViewsFrameLayout loadingView = null; 1135b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen final RemoteViewsMetaData metaData = mCache.getMetaData(); 1136b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen synchronized (metaData) { 1137a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1138a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 1139b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 1140b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return loadingView; 1141b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } finally { 1142b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (hasNewItems) loadNextIndexInBackground(); 1143b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 114416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 114516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 114616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 114716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 114816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 114916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 1150a5a06873d152d16aa47ca9be8501417280b9c9cbAdam Cohen loadingView = metaData.createLoadingView(position, convertView, parent, 1151a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mCache, mLayoutInflater, mRemoteViewsOnClickHandler); 11523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 115316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 115416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 115516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 115616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 115716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 115816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 11593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1161499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1162499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1163499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 11643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 11653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 11663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 11673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1168499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1169499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1170499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 11713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 11723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 11733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 11743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1175499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1176499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1177499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 1178499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 1179499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1180499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 118116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 118216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 118316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 118416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 118516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 11862625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 118716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 118816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 118916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 119016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 119116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 11922625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 11932625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 11942625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 119516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 119616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 119716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 119816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 119916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 120016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 120116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 120216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 120316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 12044c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen int newCount; 1205591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> visibleWindow; 12064c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen synchronized(mCache.getTemporaryMetaData()) { 12074c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen newCount = mCache.getTemporaryMetaData().count; 1208591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen visibleWindow = getVisibleWindow(mVisibleWindowLowerBound, 1209591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen mVisibleWindowUpperBound, newCount); 12104c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 121116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1212b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // Pre-load (our best guess of) the views which are currently visible in the AdapterView. 1213b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // This mitigates flashing and flickering of loading views when a widget notifies that 1214b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen // its data has changed. 1215591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i: visibleWindow) { 12164c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // Because temporary meta data is only ever modified from this thread (ie. 12174c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen // mWorkerThread), it is safe to assume that count is a valid representation. 12184c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen if (i < newCount) { 1219591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen updateRemoteViews(i, false); 12204c994986202b5b668a6377a9ad47aa5345046db9Adam Cohen } 1221b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 1222b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 122316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 122416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 12256364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 12266364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 12276364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 122816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 12296364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 123061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 123116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 123216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 12333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 12343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 12356364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 123616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 123716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 123816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 123916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1240591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen private ArrayList<Integer> getVisibleWindow(int lower, int upper, int count) { 1241591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen ArrayList<Integer> window = new ArrayList<Integer>(); 12424a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 12434a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen // In the case that the window is invalid or uninitialized, return an empty window. 12444a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen if ((lower == 0 && upper == 0) || lower < 0 || upper < 0) { 12454a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen return window; 12464a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen } 12474a9df8dda5c826ae72a2b5370b9d786ef8d0efd0Adam Cohen 1248591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen if (lower <= upper) { 1249591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i <= upper; i++){ 1250591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1251591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1252591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } else { 1253591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // If the upper bound is less than the lower bound it means that the visible window 1254591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen // wraps around. 1255591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = lower; i < count; i++) { 1256591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1257591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1258591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen for (int i = 0; i <= upper; i++) { 1259591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen window.add(i); 1260591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1261591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1262591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen return window; 1263591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen } 1264591ff978e5ca419fc1baad212419667b8a5e6dc7Adam Cohen 126516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 126616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 126716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 126816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 126916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 127016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 127116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 127216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 127316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 127416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 127516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 127616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 127716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 127816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 127916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 128016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 128116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 128216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 128316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 128416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 128516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 128616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 12873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 12883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1289fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1290499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1291499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1292499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 129381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 129481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 129581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 129681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 129781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 129881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 129916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 130081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 130181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 130281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 130381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 130481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 130581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 130681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 130781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 130881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 130981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 131081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 131181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 131281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 131381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 131481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1315499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 131681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 131816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1319499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 132116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 132216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1323499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1324499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1325499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1326