RemoteViewsAdapter.java revision b7ffea697292e48c9d764c5677b69af484e045c8
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; 56b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 57b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Default height for the default loading view, in case we cannot get inflate the first view 58b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen private static final int sDefaultLoadingViewHeight = 50; 59b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 6081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Type defs for controlling different messages across the main and worker message queues 6181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sDefaultMessageType = 0; 6281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static final int sUnbindServiceMessageType = 1; 6381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 6481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Context mContext; 6581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final Intent mIntent; 6681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private final int mAppWidgetId; 67a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung private LayoutInflater mLayoutInflater; 68499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapterServiceConnection mServiceConnection; 693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteAdapterConnectionCallback> mCallback; 703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private FixedSizeRemoteViewsCache mCache; 713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 7216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // A flag to determine whether we should notify data set changed after we connect 7316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mNotifyDataSetChangedAfterOnServiceConnected = false; 7416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of requested views that are to be notified when the associated RemoteViews are 763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // loaded. 773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayoutRefSet mRequestedViews; 78499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 79499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private HandlerThread mWorkerThread; 80499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // items may be interrupted within the normally processed queues 81499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mWorkerQueue; 82499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private Handler mMainQueue; 83499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * An interface for the RemoteAdapter to notify other classes when adapters 86499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * are actually connected to/disconnected from their actual services. 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public interface RemoteAdapterConnectionCallback { 8916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 9016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * @return whether the adapter was set or not. 9116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 9216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected(); 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected(); 95499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 96499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 97499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 98499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 1003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 1013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 1023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 10481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 10581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 10616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 10716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 109499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 110499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 113499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 114499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 11516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 11616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 11716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 11816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 11916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.bindRemoteViewsService(appWidgetId, intent, asBinder()); 12016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 12116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 12216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 12316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 12416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 12516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 12816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 12916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 13016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 13116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 13216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.unbindRemoteViewsService(appWidgetId, intent); 13316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 13416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 13516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 13616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 13716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 13816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 14016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 14116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 142499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 143c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 14416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 14716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 14816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 1493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 150499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 151499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 15216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 15316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 15416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 15516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 1563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 1573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 1583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 15916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 16016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 16116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 16216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 16316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1642625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 1653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 1663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 1673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 1693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 1703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 1712625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 1722625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 1732625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 174499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 1773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 17816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 1793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 18016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 18161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 1823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 1833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 18416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 18516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 18616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 18716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 1893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 1903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 1913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 1923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 1953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 19616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 19716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 19816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 19916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 20016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 201499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 202499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 203499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 204499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 20516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 20616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 20716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 209499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 21016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 213c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 21416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 21516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 21616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 21716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 21816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 22016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 22116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 22216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 22316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 22416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 22516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 226499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 22816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 229499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 231499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 23216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 23316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 234499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 235499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 237499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayout extends FrameLayout { 2423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 2483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 2493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 250499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void onRemoteViewsLoaded(RemoteViews view) { 25261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 25361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 25461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 25561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung addView(view.apply(getContext(), this)); 25661ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 25761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 25861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 2593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 2643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 2653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 2673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 2703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 2773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 2783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 2793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 2813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 2823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 2833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 2843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 2853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 2893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 290499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 291499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 2943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 2953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void notifyOnRemoteViewsLoaded(int position, RemoteViews view, int typeId) { 29761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 29861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 2993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 3023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 3033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 3043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ref.onRemoteViewsLoaded(view); 3053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 307499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 310499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 311499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 312499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 322499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsMetaData { 3273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 3293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 3303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 3323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 3353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 33916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 3403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 3423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 343499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 344499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 34516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 34616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 34716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 34816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 34916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 35016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 35116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 35216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 35316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 3553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 35616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 3583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 3593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 3603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 3613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 3623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 36316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 364499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 3673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 3683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 3693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 3703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 3753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 3763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 3773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 3793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 3803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 3813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 3826394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3836394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3846394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ViewGroup parent) { 3873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 3883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 3893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 3903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 3923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 393b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen boolean customLoadingViewAvailable = false; 394b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 3953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 396b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Try to inflate user-specified loading view 397b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 398b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View loadingView = mUserLoadingView.apply(parent.getContext(), parent); 399b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, 400b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(0)); 401b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(loadingView); 402b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen customLoadingViewAvailable = true; 403b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 404b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating custom loading view, using default loading" + 405b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "view instead", e); 406b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 407b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 408b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (!customLoadingViewAvailable) { 4093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 4103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 4113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 412b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 413b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View firstView = mFirstView.apply(parent.getContext(), parent); 414b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen firstView.measure( 415b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 416b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 417b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = firstView.getMeasuredHeight(); 418b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 419b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 420b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen float density = mContext.getResources().getDisplayMetrics().density; 421b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = (int) 422b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Math.round(sDefaultLoadingViewHeight * density); 423b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 424b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating first RemoteViews" + e); 425b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 4263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 429a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung TextView loadingTextView = (TextView) mLayoutInflater.inflate( 430fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 431fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 432a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 433a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 434a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 435a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 436fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 4376394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4386394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 4406394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4426394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 4453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsIndexMetaData { 4473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 4483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 449b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested; 450499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 451b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public RemoteViewsIndexMetaData(RemoteViews v, long itemId, boolean requested) { 452b90a91c633e99d4559095184af27d1416541d3c0Winson Chung set(v, itemId, requested); 453499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 454499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 455b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void set(RemoteViews v, long id, boolean requested) { 4563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 4573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (v != null) 4583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 4593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung else 4603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 461b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = requested; 4623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 464499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 4673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class FixedSizeRemoteViewsCache { 4693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 4703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 4723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsMetaData mMetaData; 47316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private RemoteViewsMetaData mTemporaryMetaData; 4743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 4763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 4773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 4783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 4793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 4803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 4813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 4823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 4833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 4853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 4863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 4873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 4893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 4903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 491b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 492b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 493b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 494b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 4953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 4963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 4973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 4983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 5003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 5013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 5023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 5043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 5053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 5063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 5073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 5083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 5093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 5103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 511b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 5123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 5143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 5153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 5163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 5173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 5183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 51916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 5203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 5213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 5223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 523b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 5243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 5253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 526499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 527b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void insert(int position, RemoteViews v, long itemId, boolean isRequested) { 5283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 5293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 5303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(position)); 531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 534b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 535b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 5363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 5373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 5383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 5393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 5403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 541b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition)); 542499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 5453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 547b90a91c633e99d4559095184af27d1416541d3c0Winson Chung metaData.set(v, itemId, isRequested); 5483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 549b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId, isRequested)); 550499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 5523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 553499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 5553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 5563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 55716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 55816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 55916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 5633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 564499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 565499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 5673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 569499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 5713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 572499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 57316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 57416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 57516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 57616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 57716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 57816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 57916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 58016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 5813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 5823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 5833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 5843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 5853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 586aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 587aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung mem += v.estimateBitmapMemoryUsage(); 588aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 589499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 591499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getFarthestPositionFrom(int pos) { 5933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 5943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 5953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 596b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistNonRequested = 0; 597b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistIndexNonRequested = -1; 5983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 600b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (dist > maxDistNonRequested && !mIndexMetaData.get(i).isRequested) { 601b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDistNonRequested/maxDistIndexNonRequested will store the index of the 602b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest non-requested position 603b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistIndexNonRequested = i; 604b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistNonRequested = dist; 605b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (dist > maxDist) { 607b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 608b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // regardless of whether it was directly requested or not 6093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 6103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 611c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 612c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 613b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (maxDistIndexNonRequested > -1) { 614b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return maxDistIndexNonRequested; 615b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 617c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 618c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 620b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 6213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 6233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 624499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 625499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 62616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 6273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 6293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 6303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 63116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 632499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 633499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 634499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 6363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 6373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 638499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 6413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 6433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 6443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 6463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 6473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 6483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 6493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 6503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 6513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 6523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 6533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 654499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 6563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 657499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 65816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 659499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 660b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 661b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 6623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 6633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 6643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 6663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 6673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 6683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 6693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 670b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 6713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 672499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 6743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 6753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 6763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 677b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 6783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 679499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 680b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 681c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 6823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 683c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 6853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 6863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 6883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 6893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 690499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 69261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 69361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 69461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 69561ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 6963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 6973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 698b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 6993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 7003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 7013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 7033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 704499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 705499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 706499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 707499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 708499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public RemoteViewsAdapter(Context context, Intent intent, RemoteAdapterConnectionCallback callback) { 709499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 710499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 71181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 712a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 7139b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 7149b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 7159b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 7163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 717499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 71881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 71981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 72081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 72181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 72281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 72381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 724499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 725499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 726499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 72781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 728499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 72981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 73081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 7313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 7323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 733499cb9f516062b654952d282f211bee44c31a3c2Winson Chung requestBindService(); 734499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 735499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 736fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 737fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 738fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 739fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 740fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 741fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 742fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 743fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 744fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 745fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 746fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 7473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 7483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 7493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 7503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 75116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 75216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 75316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 754b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested = false; 75516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 756b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 757b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 758b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = res[1] > 0; 75916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 76016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 76116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 762b90a91c633e99d4559095184af27d1416541d3c0Winson Chung updateRemoteViews(position, isRequested); 7633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 76416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 76516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 76616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 76716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 76816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 76916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 7703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 7733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 77516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 77616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 7773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 77816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 77916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 78016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 78116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 78216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 78316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 78416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 78516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 78616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 78716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 78816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 78916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 79016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 7913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 79216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 79316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 79416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 79516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 79616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 79716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 79816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 79916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 80016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 80116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 80216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 80316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 80416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 80516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 80616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 80716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 80816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 80916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 81016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 81116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 81216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 81316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 81416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 81516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 81616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8172625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 81816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 819fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 820fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 8213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 824b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private void updateRemoteViews(final int position, boolean isRequested) { 82516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) return; 82616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 82716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 82816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 82916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 83016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 83116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 83216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 83316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 8342625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 83516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 83616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 83716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 83816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 83916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 8402625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 8412625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 8422625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 84316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 84516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 84616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 84716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 84816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 84916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 85016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 85116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 85216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 85316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 85416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Cache the RemoteViews we loaded 855b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mCache.insert(position, remoteViews, itemId, isRequested); 85616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 85716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify all the views that we have previously returned for this index that 85816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // there is new data for it. 85916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViews rv = remoteViews; 86016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final int typeId = mCache.getMetaDataAt(position).typeId; 86116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 86216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 86316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 86416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.notifyOnRemoteViewsLoaded(position, rv, typeId); 86516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 86616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 8673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 868499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 869499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 8709b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 8719b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 8729b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 8739b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 874499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 8753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 8763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 8773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 8783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 879499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 880499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 881499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 8823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 883499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 884499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 8873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 8883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 8893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 8903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 8923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 893499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 894499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 895499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 8963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 8973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 8983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 8993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 9003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 9013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 9023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 9063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 9073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 9083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 9123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 9133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 9143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 9153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 9163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 917a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 918a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 919a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 920a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 921a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 9223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 924499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 925499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 926499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 92716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 92816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 92916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 93016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 93116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 93216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 93316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 9347ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 93516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 93616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 93716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 93816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 9393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 94016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 94116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 94216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 9443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 9453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 946181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 947181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 948181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 949181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 9503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 9513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 9523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 9553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 95616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 95716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 958aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 959aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen indexMetaData.isRequested = true; 960aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 96116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 962b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 963b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Reuse the convert view where possible 964b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (layout != null) { 965b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (convertViewTypeId == typeId) { 966b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen rv.reapply(context, convertViewChild); 967b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 968b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 969b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.removeAllViews(); 970b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } else { 971b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout = new RemoteViewsFrameLayout(context); 9723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 974b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Otherwise, create a new view to be returned 975b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View newView = rv.apply(context, parent); 976b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen newView.setTagInternal(com.android.internal.R.id.rowTypeId, 977b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(typeId)); 978b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(newView); 979b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 980b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 981b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e){ 982b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // We have to make sure that we successfully inflated the RemoteViews, if not 983b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // we return the loading view instead. 984b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating RemoteViews at position: " + position + ", using" + 985b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "loading view instead" + e); 986b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 987b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen RemoteViewsFrameLayout loadingView = null; 988b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen final RemoteViewsMetaData metaData = mCache.getMetaData(); 989b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen synchronized (metaData) { 990b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView = metaData.createLoadingView(position, convertView, parent); 991b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 992b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return loadingView; 993b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } finally { 994b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (hasNewItems) loadNextIndexInBackground(); 995b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 99616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 99716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 99816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 99916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 100016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 100116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 100216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadingView = metaData.createLoadingView(position, convertView, parent); 10033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 100416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 100516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 100616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 100716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 100816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 100916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 10103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1012499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1013499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1014499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 10153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 10183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1019499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1020499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1021499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 10223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 10253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1026499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1027499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1028499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 1029499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 1030499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1031499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 103216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 103316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 103416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 103516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 103616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 10372625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 103816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 103916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 104016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 104116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 104216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 10432625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 10442625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 10452625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 104616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 104716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 104816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 104916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 105016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 105116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 105216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 105316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 105416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 105516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 105616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 105716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 10586364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 10596364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 10606364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 106116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 10626364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 106361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 106416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 106516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 10663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 10686364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 106916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 107016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 107116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 107216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 107316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 107416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 107516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 107616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 107716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 107816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 107916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 108016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 108116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 108216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 108316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 108416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 108516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 108616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 108716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 108816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 108916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 109016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 109116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 109216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 109316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 109416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 10953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1097fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1098499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1099499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1100499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 110181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 110281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 110381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 110481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 110581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 110681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 110716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 110881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 110981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 111081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 111181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 111281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 111381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 111481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 111581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 111681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 111781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 111881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 111981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 112081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 112181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 112281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1123499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 112481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1125499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 112616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1127499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1128499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 112916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 113016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1131499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1132499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1133499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1134