RemoteViewsAdapter.java revision fc442bdea14289656ef1f537103578eb71faf473
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; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport java.util.HashMap; 213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chungimport java.util.HashSet; 22c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chungimport java.util.LinkedList; 23499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 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; 34a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chungimport android.view.LayoutInflater; 35499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.view.View; 36181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohenimport android.view.View.MeasureSpec; 3784bbb020217adcdfe0694c44ccab57e208ffde16Winson Chungimport android.view.ViewGroup; 38499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungimport com.android.internal.widget.IRemoteViewsAdapterConnection; 40499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport com.android.internal.widget.IRemoteViewsFactory; 41499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 42499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** 43499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An adapter to a RemoteViewsService which fetches and caches RemoteViews 44499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * to be later inflated as child views. 45499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 46499cb9f516062b654952d282f211bee44c31a3c2Winson Chung/** @hide */ 4781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chungpublic class RemoteViewsAdapter extends BaseAdapter implements Handler.Callback { 48fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung private static final String TAG = "RemoteViewsAdapter"; 49499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // The max number of items in the cache 51b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sDefaultCacheSize = 40; 5281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // The delay (in millis) to wait until attempting to unbind from a service after a request. 5381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // This ensures that we don't stay continually bound to the service and that it can be destroyed 5481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // if we need the memory elsewhere in the system. 55b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sUnbindServiceDelay = 5000; 5681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Type defs for controlling different messages across the main and worker message queues 5781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sDefaultMessageType = 0; 5881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sUnbindServiceMessageType = 1; 5981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 6081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Context mContext; 6181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Intent mIntent; 6281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final int mAppWidgetId; 63a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung private LayoutInflater mLayoutInflater; 64499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapterServiceConnection mServiceConnection; 653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteAdapterConnectionCallback> mCallback; 663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private FixedSizeRemoteViewsCache mCache; 673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // A flag to determine whether we should notify data set changed after we connect 6916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mNotifyDataSetChangedAfterOnServiceConnected = false; 7016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of requested views that are to be notified when the associated RemoteViews are 723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // loaded. 733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayoutRefSet mRequestedViews; 74499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 75499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private HandlerThread mWorkerThread; 76499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // items may be interrupted within the normally processed queues 77499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mWorkerQueue; 78499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mMainQueue; 79499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 80499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 81499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An interface for the RemoteAdapter to notify other classes when adapters 82499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * are actually connected to/disconnected from their actual services. 83499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public interface RemoteAdapterConnectionCallback { 8516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 8616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * @return whether the adapter was set or not. 8716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 8816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected(); 89499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 90499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected(); 91499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 92499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 99499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 10081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 10181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 10216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 10316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 105499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 106499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 109499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 110499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 11116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 11216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 11316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 11416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 11516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.bindRemoteViewsService(appWidgetId, intent, asBinder()); 11616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 11716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 11816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 11916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 12016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 12116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 12516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 12616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 12716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 12816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.unbindRemoteViewsService(appWidgetId, intent); 12916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 13016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 13116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 13216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 13316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 13416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 13716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 138499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 139c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 14016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 14316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 14416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 1453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 146499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 147499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 14816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 14916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 15016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 15116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 1523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 1533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 1543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 15516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 15616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 15716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 15816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 15916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1602625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 1613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 1623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 1633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 1653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 1663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 1672625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 1682625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 1692625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 170499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 1733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 17416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 1753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 17616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 17761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 1783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 1793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 18016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 18116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 18216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 18316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 1853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 1863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 1873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 1883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 1913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 19216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 19316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 19416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 19516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 19616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 197499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 198499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 199499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 200499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 20116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 20216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 20316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 205499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 20616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 209c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 21016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 21116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 21216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 21316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 21416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 21616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 21716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 21816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 21916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 22016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 22116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 222499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 223499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 22416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 225499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 226499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 22816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 22916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 231499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 232499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 233499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayout extends FrameLayout { 2383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 241499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 2443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 2453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void onRemoteViewsLoaded(RemoteViews view) { 24861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 24961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 25061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 25161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung addView(view.apply(getContext(), this)); 25261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 25361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 25461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 2553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 2603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 2613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 2633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 264499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 2663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 2733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 2743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 2753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 2773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 2783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 2793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 2803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 2813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 2853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 2903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 2913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void notifyOnRemoteViewsLoaded(int position, RemoteViews view, int typeId) { 29361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 29461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 2953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 2963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 2973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 2983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 2993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 3003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ref.onRemoteViewsLoaded(view); 3013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 306499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 307499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 308499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 316499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 318499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsMetaData { 3233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 3253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 3263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 3283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 3293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 3303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 3323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 33516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 3383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 339499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 340499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 34116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 34216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 34316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 34416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 34516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 34616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 34716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 34816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 34916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 3513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 35216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 3543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 3553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 3563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 3573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 3583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 35916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 361499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 3633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 3643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 3653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 3713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 3723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 3733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 3753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 3763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 3773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 3786394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3796394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3806394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 3813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 3823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ViewGroup parent) { 3833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 3843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 3883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 3893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 3903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A user-specified loading view 3913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View loadingView = mUserLoadingView.apply(parent.getContext(), parent); 392a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, new Integer(0)); 3933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung layout.addView(loadingView); 3943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 3963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 3973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 3983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View firstView = mFirstView.apply(parent.getContext(), parent); 3993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung firstView.measure( 4003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 4013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 4023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = firstView.getMeasuredHeight(); 4033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 4043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 407a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung TextView loadingTextView = (TextView) mLayoutInflater.inflate( 408fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 409fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 410a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 411a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 412a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 413a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 414fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 4156394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4166394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 4186394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4206394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 4233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsIndexMetaData { 4253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 4263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 427b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested; 428499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 429b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public RemoteViewsIndexMetaData(RemoteViews v, long itemId, boolean requested) { 430b90a91c633e99d4559095184af27d1416541d3c0Winson Chung set(v, itemId, requested); 431499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 433b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void set(RemoteViews v, long id, boolean requested) { 4343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 4353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (v != null) 4363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 4373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung else 4383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 439b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = requested; 4403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 442499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 4453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class FixedSizeRemoteViewsCache { 4473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 4483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 4503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsMetaData mMetaData; 45116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private RemoteViewsMetaData mTemporaryMetaData; 4523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 4543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 4553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 4563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 4573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 4583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 4593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 4603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 4613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 4633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 4643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 4653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 4673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 469b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 470b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 471b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 472b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 4733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 4743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 4753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 4763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 4783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 4793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 4803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 4823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 4833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 4843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 4853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 4863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 4873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 4883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 489b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 4903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 4923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 4933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 4943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 4953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 4963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 49716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 4983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 4993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 5003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 501b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 5023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 5033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 504499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 505b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void insert(int position, RemoteViews v, long itemId, boolean isRequested) { 5063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 5073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 5083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(position)); 509499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 510499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 512b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 513b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 5143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 5153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 5163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 5173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 5183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 519b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition)); 520499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 5233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 525b90a91c633e99d4559095184af27d1416541d3c0Winson Chung metaData.set(v, itemId, isRequested); 5263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 527b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId, isRequested)); 528499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 5303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 5333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 5343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 53516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 53616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 53716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 5383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 5393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 5403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 5413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 542499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 543499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 5453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 547499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 5493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 550499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 55116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 55216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 55316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 55416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 55516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 55616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 55716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 55816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 5593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 5633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 564aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 565aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung mem += v.estimateBitmapMemoryUsage(); 566aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 567499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 569499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getFarthestPositionFrom(int pos) { 5713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 5723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 5733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 574b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistNonRequested = 0; 575b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistIndexNonRequested = -1; 5763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 5773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 578b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (dist > maxDistNonRequested && !mIndexMetaData.get(i).isRequested) { 579b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDistNonRequested/maxDistIndexNonRequested will store the index of the 580b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest non-requested position 581b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistIndexNonRequested = i; 582b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistNonRequested = dist; 583b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 5843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (dist > maxDist) { 585b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 586b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // regardless of whether it was directly requested or not 5873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 5883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 589c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 590c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 591b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (maxDistIndexNonRequested > -1) { 592b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return maxDistIndexNonRequested; 593b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 5943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 595c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 596c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 5973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 598b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 6013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 602499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 603499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 60416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 6053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 6063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 6073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 6083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 60916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 611499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 612499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 6143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 6153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 616499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 6193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 6213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 6223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 6243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 6253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 6263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 6273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 6293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 6303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 6313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 632499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 6343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 635499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 63616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 637499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 638b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 639b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 6403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 6413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 6423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 6443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 6463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 6473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 648b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 6493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 650499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 6523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 6533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 6543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 655b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 6563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 657499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 658b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 659c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 6603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 661c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 6633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 6643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 6663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 6673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 668499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 67061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 67161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 67261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 67361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 6743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 6753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 676b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 6773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 6783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 6793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 6813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 682499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 683499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 684499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 685499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 686499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public RemoteViewsAdapter(Context context, Intent intent, RemoteAdapterConnectionCallback callback) { 687499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 688499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 68981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 690a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 6919b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 6929b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 6939b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 6943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 695499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 69681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 69781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 69881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 69981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 70081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 70181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 702499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 703499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 704499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 70581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 706499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 70781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 70881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 7093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 7103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 711499cb9f516062b654952d282f211bee44c31a3c2Winson Chung requestBindService(); 712499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 713499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 714fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 715fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 716fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 717fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 718fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 719fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 720fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 721fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 722fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 723fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 724fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 7253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 7263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 7273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 7283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 72916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 73016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 73116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 732b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested = false; 73316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 734b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 735b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 736b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = res[1] > 0; 73716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 73816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 73916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 740b90a91c633e99d4559095184af27d1416541d3c0Winson Chung updateRemoteViews(position, isRequested); 7413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 74216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 74316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 74416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 74516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 74616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 74716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 7483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 7513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 75316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 75416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 7553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 75616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 75716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 75816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 75916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 76016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 76116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 76216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 76316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 76416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 76516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 76616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 76716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 76816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 7693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 77016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 77116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 77216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 77316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 77416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 77516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 77616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 77716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 77816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 77916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 78016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 78116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 78216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 78316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 78416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 78516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 78616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 78716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 78816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 78916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 79016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 79116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 79216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 79316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 79416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 7952625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 79616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 797fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 798fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 7993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 802b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private void updateRemoteViews(final int position, boolean isRequested) { 80316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) return; 80416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 80516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 80616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 80716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 80816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 80916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 81016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 81116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 8122625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 81316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 81416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 81516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 81616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 81716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 8182625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 8192625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 8202625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 82116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 82316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 82416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 82516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 82616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 82716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 82816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 82916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 83016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 83116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 83216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Cache the RemoteViews we loaded 833b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mCache.insert(position, remoteViews, itemId, isRequested); 83416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 83516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify all the views that we have previously returned for this index that 83616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // there is new data for it. 83716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViews rv = remoteViews; 83816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final int typeId = mCache.getMetaDataAt(position).typeId; 83916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 84016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 84116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 84216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.notifyOnRemoteViewsLoaded(position, rv, typeId); 84316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 84416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 8453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 846499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 847499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 8489b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 8499b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 8509b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 8519b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 852499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 8533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 8543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 8553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 8563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 857499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 859499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 8603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 861499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 862499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 863499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 864499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 8653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 8663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 8673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 8683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 8703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 871499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 872499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 873499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 8743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 8753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 8763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 8773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 8783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 8793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 8803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 8833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 8843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 8853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 8863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 8893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 8903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 8913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 8923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 8933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 8943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 895a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 896a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 897a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 898a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 899a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 9003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 902499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 903499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 904499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 90516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 90616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 90716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 90816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 90916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 91016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 91116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 9127ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 91316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 91416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 91516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 91616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 9173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 91816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 91916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 92016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 92116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 9223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 9233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 924181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 925181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 926181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 927181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 9283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 9293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 9303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 9333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 93416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 93516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 936aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 937aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen indexMetaData.isRequested = true; 938aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 93916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 94016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reuse the convert view where possible 94116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (layout != null) { 94216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (convertViewTypeId == typeId) { 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung rv.reapply(context, convertViewChild); 94416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return layout; 9453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 94616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung layout.removeAllViews(); 9473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 94816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung layout = new RemoteViewsFrameLayout(context); 94916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 9503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 95116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Otherwise, create a new view to be returned 95216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung View newView = rv.apply(context, parent); 95316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung newView.setTagInternal(com.android.internal.R.id.rowTypeId, new Integer(typeId)); 95416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung layout.addView(newView); 95516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (hasNewItems) loadNextIndexInBackground(); 9563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 95716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return layout; 95816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 95916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 96016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 96116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 96216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 96316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 96416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadingView = metaData.createLoadingView(position, convertView, parent); 9653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 96616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 96716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 96816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 96916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 97016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 97116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 9723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 974499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 975499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 976499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 9773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 9783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 9793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 9803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 981499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 982499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 983499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 9843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 9853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 9863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 9873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 988499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 989499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 990499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 991499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 992499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 993499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 99416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 99516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 99616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 99716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 99816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 9992625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 100016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 100116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 100216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 100316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 100416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 10052625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 10062625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 10072625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 100816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 100916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 101116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 101216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 101316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 101416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 101616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 101716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 101916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 10206364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 10216364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 10226364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 102316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 10246364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 102561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 102616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 102716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 10283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 10306364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 103116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 103216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 103316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 103416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 103516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 103616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 103716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 103816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 103916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 104016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 104116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 104216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 104316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 104416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 104516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 104616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 104716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 104816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 104916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 105016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 105116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 105216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 105316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 105416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 105516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 105616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 10573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1059fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1060499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1061499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 106381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 106481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 106581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 106681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 106781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 106881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 106916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 107081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 107181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 107281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 107381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 107481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 107581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 107681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 107781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 107881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 107981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 108081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 108181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 108281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 108381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 108481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 108681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1087499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 108816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1089499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1090499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 109116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 109216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1093499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1094499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1096