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(); 952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 992148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 1002148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged(); 101499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 102499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 104499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The service connection that gets populated when the RemoteViewsService is 1053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * bound. This must be a static inner class to ensure that no references to the outer 1063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * RemoteViewsAdapter instance is retained (this would prevent the RemoteViewsAdapter from being 1073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * garbage collected, and would cause us to leak activities due to the caching mechanism for 1083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * FrameLayouts in the adapter). 109499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 11081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private static class RemoteViewsAdapterServiceConnection extends 11181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung IRemoteViewsAdapterConnection.Stub { 11216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnected; 11316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private boolean mIsConnecting; 1143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private WeakReference<RemoteViewsAdapter> mAdapter; 115499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private IRemoteViewsFactory mRemoteViewsFactory; 116499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsAdapterServiceConnection(RemoteViewsAdapter adapter) { 1183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mAdapter = new WeakReference<RemoteViewsAdapter>(adapter); 119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 120499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 12116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void bind(Context context, int appWidgetId, Intent intent) { 12216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mIsConnecting) { 12316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 12416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 12516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.bindRemoteViewsService(appWidgetId, intent, asBinder()); 12616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = true; 12716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 12816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "bind(): " + e.getMessage()); 12916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 13016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 13116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 13416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 13516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void unbind(Context context, int appWidgetId, Intent intent) { 13616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 13716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final AppWidgetManager mgr = AppWidgetManager.getInstance(context); 13816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mgr.unbindRemoteViewsService(appWidgetId, intent); 13916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 14016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } catch (Exception e) { 14116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapterServiceConnection", "unbind(): " + e.getMessage()); 14216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 14316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 14416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 14516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 14616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 14716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceConnected(IBinder service) { 148499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteViewsFactory = IRemoteViewsFactory.Stub.asInterface(service); 149c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 15016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any deferred unbind messages 1513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 1523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 15316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 15416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up work that we need to do for the callback to run 1553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mWorkerQueue.post(new Runnable() { 156499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 157499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void run() { 15816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (adapter.mNotifyDataSetChangedAfterOnServiceConnected) { 15916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Handle queued notifyDataSetChanged() if necessary 16016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.onNotifyDataSetChanged(); 16116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 1623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung IRemoteViewsFactory factory = 1633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mServiceConnection.getRemoteViewsFactory(); 1643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung try { 16516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!factory.isCreated()) { 16616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We only call onDataSetChanged() if this is the factory was just 16716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // create in response to this bind 16816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 16916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 1702625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 1713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Log.e(TAG, "Error notifying factory of data set changed in " + 1723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung "onServiceConnected(): " + e.getMessage()); 1733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Return early to prevent anything further from being notified 1753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // (effectively nothing has changed) 1763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 1772625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 1782625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error notifying factory of data set changed in " + 1792625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen "onServiceConnected(): " + e.getMessage()); 180499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Request meta data so that we have up to date data when calling back to 1833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the remote adapter callback 18416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.updateTemporaryMetaData(); 1853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 18616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify the host that we've connected 18761ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung adapter.mMainQueue.post(new Runnable() { 1883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 1893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 19016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (adapter.mCache) { 19116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mCache.commitTemporaryMetaData(); 19216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 19316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 1943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteAdapterConnectionCallback callback = 1953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung adapter.mCallback.get(); 1963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (callback != null) { 1973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung callback.onRemoteAdapterConnected(); 1983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 2013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 20216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 20316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Enqueue unbind message 20416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.enqueueDeferredUnbindServiceMessage(); 20516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = true; 20616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 207499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 208499cb9f516062b654952d282f211bee44c31a3c2Winson Chung }); 209499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 210499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 21116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized void onServiceDisconnected() { 21216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnected = false; 21316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mIsConnecting = false; 2143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsFactory = null; 215499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 21616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Clear the main/worker queues 2173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsAdapter adapter = mAdapter.get(); 2183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (adapter == null) return; 219c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 22016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.post(new Runnable() { 22116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 22216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 22316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 22416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung adapter.mMainQueue.removeMessages(sUnbindServiceMessageType); 2253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 22616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteAdapterConnectionCallback callback = adapter.mCallback.get(); 22716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (callback != null) { 22816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung callback.onRemoteAdapterDisconnected(); 22916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 23016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 23116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 232499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 233499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 23416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized IRemoteViewsFactory getRemoteViewsFactory() { 235499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mRemoteViewsFactory; 236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 237499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 23816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public synchronized boolean isConnected() { 23916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mIsConnected; 240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 241499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 243499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * A FrameLayout which contains a loading view, and manages the re/applying of RemoteViews when 2453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * they are loaded. 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayout extends FrameLayout { 2483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayout(Context context) { 2493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung super(context); 2503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Updates this RemoteViewsFrameLayout depending on the view that was loaded. 2543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * @param view the RemoteViews that was loaded. If null, the RemoteViews was not loaded 2553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * successfully. 256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void onRemoteViewsLoaded(RemoteViews view) { 25861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung try { 25961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Remove all the children of this layout first 26061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung removeAllViews(); 26161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung addView(view.apply(getContext(), this)); 26261ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } catch (Exception e) { 26361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung Log.e(TAG, "Failed to apply RemoteViews."); 26461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung } 2653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 2663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Stores the references of all the RemoteViewsFrameLayouts that have been returned by the 2703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * adapter that have not yet had their RemoteViews loaded. 2713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 2723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsFrameLayoutRefSet { 2733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, LinkedList<RemoteViewsFrameLayout>> mReferences; 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsFrameLayoutRefSet() { 2763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences = new HashMap<Integer, LinkedList<RemoteViewsFrameLayout>>(); 277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 278499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Adds a new reference to a RemoteViewsFrameLayout returned by the adapter. 281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void add(int position, RemoteViewsFrameLayout layout) { 2833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 2843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung LinkedList<RemoteViewsFrameLayout> refs; 2853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create the list if necessary 2873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 2883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = mReferences.get(pos); 2893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 2903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs = new LinkedList<RemoteViewsFrameLayout>(); 2913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.put(pos, refs); 292499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 2933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 2943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add the references to the list 2953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.add(layout); 296499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 297499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 2983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 2993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Notifies each of the RemoteViewsFrameLayouts associated with a particular position that 3003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * the associated RemoteViews has loaded. 3013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void notifyOnRemoteViewsLoaded(int position, RemoteViews view, int typeId) { 30361ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung if (view == null) return; 30461ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 3053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Integer pos = position; 3063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mReferences.containsKey(pos)) { 3073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Notify all the references for that position of the newly loaded RemoteViews 3083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final LinkedList<RemoteViewsFrameLayout> refs = mReferences.get(pos); 3093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (final RemoteViewsFrameLayout ref : refs) { 3103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ref.onRemoteViewsLoaded(view); 3113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 3123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung refs.clear(); 313499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Remove this set from the original mapping 3153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.remove(pos); 316499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 318499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Removes all references to all RemoteViewsFrameLayouts returned by the adapter. 3213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void clear() { 3233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We currently just clear the references, and leave all the previous layouts returned 3243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // in their default state of the loading view. 3253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mReferences.clear(); 326499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 328499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 3303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with the cache in it's current state. 3313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 3323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsMetaData { 3333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count; 3343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int viewTypeCount; 3353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung boolean hasStableIds; 3363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Used to determine how to construct loading views. If a loading view is not specified 3383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by the user, then we try and load the first view, and use its height as the height for 3393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the default loading view. 3403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mUserLoadingView; 3413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViews mFirstView; 3423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mFirstViewHeight; 3433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A mapping from type id to a set of unique type ids 34516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private final HashMap<Integer, Integer> mTypeIdIndexMap = new HashMap<Integer, Integer>(); 3463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData() { 3483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung reset(); 349499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 350499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 35116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void set(RemoteViewsMetaData d) { 35216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (d) { 35316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung count = d.count; 35416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung viewTypeCount = d.viewTypeCount; 35516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasStableIds = d.hasStableIds; 35616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung setLoadingViewTemplates(d.mUserLoadingView, d.mFirstView); 35716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 35816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 35916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 3613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = 0; 36216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 3633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // by default there is at least one dummy view type 3643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung viewTypeCount = 1; 3653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung hasStableIds = true; 3663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = null; 3673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = null; 3683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = 0; 36916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTypeIdIndexMap.clear(); 370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void setLoadingViewTemplates(RemoteViews loadingView, RemoteViews firstView) { 3733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mUserLoadingView = loadingView; 3743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (firstView != null) { 3753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstView = firstView; 3763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mFirstViewHeight = -1; 377499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 378499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 379499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public int getMappedViewType(int typeId) { 3813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mTypeIdIndexMap.containsKey(typeId)) { 3823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mTypeIdIndexMap.get(typeId); 3833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 3843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We +1 because the loading view always has view type id of 0 3853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int incrementalTypeId = mTypeIdIndexMap.size() + 1; 3863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mTypeIdIndexMap.put(typeId, incrementalTypeId); 3873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return incrementalTypeId; 3886394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3896394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 3906394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 3913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsFrameLayout createLoadingView(int position, View convertView, 3923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung ViewGroup parent) { 3933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create and return a new FrameLayout, and setup the references for this position 3943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final Context context = parent.getContext(); 3953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung RemoteViewsFrameLayout layout = new RemoteViewsFrameLayout(context); 3963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 3973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Create a new loading view 3983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 399b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen boolean customLoadingViewAvailable = false; 400b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 4013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mUserLoadingView != null) { 402b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Try to inflate user-specified loading view 403b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 404b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View loadingView = mUserLoadingView.apply(parent.getContext(), parent); 405b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView.setTagInternal(com.android.internal.R.id.rowTypeId, 406b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(0)); 407b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(loadingView); 408b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen customLoadingViewAvailable = true; 409b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 410b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating custom loading view, using default loading" + 411b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "view instead", e); 412b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 413b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 414b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (!customLoadingViewAvailable) { 4153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // A default loading view 4163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Use the size of the first row as a guide for the size of the loading view 4173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mFirstViewHeight < 0) { 418b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 419b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View firstView = mFirstView.apply(parent.getContext(), parent); 420b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen firstView.measure( 421b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 422b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 423b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = firstView.getMeasuredHeight(); 424b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 425b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e) { 426b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen float density = mContext.getResources().getDisplayMetrics().density; 427b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstViewHeight = (int) 428b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Math.round(sDefaultLoadingViewHeight * density); 429b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen mFirstView = null; 430b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating first RemoteViews" + e); 431b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 4323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Compose the loading view text 435a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung TextView loadingTextView = (TextView) mLayoutInflater.inflate( 436fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen com.android.internal.R.layout.remote_views_adapter_default_loading_view, 437fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen layout, false); 438a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setHeight(mFirstViewHeight); 439a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung loadingTextView.setTag(new Integer(0)); 440a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung 441a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung layout.addView(loadingTextView); 442fbc3590f40436e372df198c2d6b27877ae8952f1Winson Chung } 4436394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4446394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return layout; 4466394c0e52cf641d93f678fd052499aa952e3595dWinson Chung } 4473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4486394c0e52cf641d93f678fd052499aa952e3595dWinson Chung 4493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * The meta-data associated with a single item in the cache. 4513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class RemoteViewsIndexMetaData { 4533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId; 4543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung long itemId; 455b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested; 456499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 457b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public RemoteViewsIndexMetaData(RemoteViews v, long itemId, boolean requested) { 458b90a91c633e99d4559095184af27d1416541d3c0Winson Chung set(v, itemId, requested); 459499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 460499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 461b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void set(RemoteViews v, long id, boolean requested) { 4623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung itemId = id; 4633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (v != null) 4643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = v.getLayoutId(); 4653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung else 4663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = 0; 467b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = requested; 4683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 4693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 470499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 4723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * 4733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 4743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private class FixedSizeRemoteViewsCache { 4753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final String TAG = "FixedSizeRemoteViewsCache"; 4763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The meta data related to all the RemoteViews, ie. count, is stable, etc. 4783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private RemoteViewsMetaData mMetaData; 47916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private RemoteViewsMetaData mTemporaryMetaData; 4803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache/mapping of position to RemoteViewsMetaData. This set is guaranteed to be 4823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // greater than or equal to the set of RemoteViews. 4833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: The reason that we keep this separate from the RemoteViews cache below is that this 4843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we still need to be able to access the mapping of position to meta data, without keeping 4853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the heavy RemoteViews around. The RemoteViews cache is trimmed to fixed constraints wrt. 4863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // memory and size, but this metadata cache will retain information until the data at the 4873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // position is guaranteed as not being necessary any more (usually on notifyDataSetChanged). 4883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViewsIndexMetaData> mIndexMetaData; 4893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The cache of actual RemoteViews, which may be pruned if the cache gets too large, or uses 4913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // too much memory. 4923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashMap<Integer, RemoteViews> mIndexRemoteViews; 4933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 4943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices that have been explicitly requested by the collection view 4953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mRequestedIndices; 4963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 497b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // We keep a reference of the last requested index to determine which item to prune the 498b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest items from when we hit the memory limit 499b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private int mLastRequestedIndex; 500b90a91c633e99d4559095184af27d1416541d3c0Winson Chung 5013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The set of indices to load, including those explicitly requested, as well as those 5023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // determined by the preloading algorithm to be prefetched 5033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private HashSet<Integer> mLoadIndices; 5043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The lower and upper bounds of the preloaded range 5063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadLowerBound; 5073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mPreloadUpperBound; 5083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The bounds of this fixed cache, we will try and fill as many items into the cache up to 5103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // the maxCount number of items, or the maxSize memory usage. 5113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // The maxCountSlack is used to determine if a new position in the cache to be loaded is 5123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // sufficiently ouside the old set, prompting a shifting of the "window" of items to be 5133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // preloaded. 5143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCount; 5153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int mMaxCountSlack; 5163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private static final float sMaxCountSlackPercent = 0.75f; 517b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private static final int sMaxMemoryLimitInBytes = 2 * 1024 * 1024; 5183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public FixedSizeRemoteViewsCache(int maxCacheSize) { 5203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCount = maxCacheSize; 5213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMaxCountSlack = Math.round(sMaxCountSlackPercent * (mMaxCount / 2)); 5223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 5233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 5243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mMetaData = new RemoteViewsMetaData(); 52516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mTemporaryMetaData = new RemoteViewsMetaData(); 5263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData = new HashMap<Integer, RemoteViewsIndexMetaData>(); 5273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews = new HashMap<Integer, RemoteViews>(); 5283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices = new HashSet<Integer>(); 529b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 5303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices = new HashSet<Integer>(); 5313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 533b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public void insert(int position, RemoteViews v, long itemId, boolean isRequested) { 5343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the count 5353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.size() >= mMaxCount) { 5363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(position)); 537499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 538499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Trim the cache if we go beyond the available memory size constraints 540b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int pruneFromPosition = (mLastRequestedIndex > -1) ? mLastRequestedIndex : position; 541b90a91c633e99d4559095184af27d1416541d3c0Winson Chung while (getRemoteViewsBitmapMemoryUsage() >= sMaxMemoryLimitInBytes) { 5423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Note: This is currently the most naive mechanism for deciding what to prune when 5433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // we hit the memory limit. In the future, we may want to calculate which index to 5443ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // remove based on both its position as well as it's current memory usage, as well 5453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // as whether it was directly requested vs. whether it was preloaded by our caching 5463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // mechanism. 547b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexRemoteViews.remove(getFarthestPositionFrom(pruneFromPosition)); 548499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 5503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Update the metadata cache 5513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsIndexMetaData metaData = mIndexMetaData.get(position); 553b90a91c633e99d4559095184af27d1416541d3c0Winson Chung metaData.set(v, itemId, isRequested); 5543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 555b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mIndexMetaData.put(position, new RemoteViewsIndexMetaData(v, itemId, isRequested)); 556499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.put(position, v); 5583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 559499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsMetaData getMetaData() { 5613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mMetaData; 5623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 56316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public RemoteViewsMetaData getTemporaryMetaData() { 56416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return mTemporaryMetaData; 56516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 5663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViews getRemoteViewsAt(int position) { 5673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexRemoteViews.containsKey(position)) { 5683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.get(position); 5693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 570499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 571499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public RemoteViewsIndexMetaData getMetaDataAt(int position) { 5733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mIndexMetaData.containsKey(position)) { 5743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.get(position); 575499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return null; 5773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 578499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 57916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void commitTemporaryMetaData() { 58016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mTemporaryMetaData) { 58116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mMetaData) { 58216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMetaData.set(mTemporaryMetaData); 58316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 58416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 58516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 58616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 5873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getRemoteViewsBitmapMemoryUsage() { 5883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Calculate the memory usage of all the RemoteViews bitmaps being cached 5893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int mem = 0; 5903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (Integer i : mIndexRemoteViews.keySet()) { 5913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViews v = mIndexRemoteViews.get(i); 592aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung if (v != null) { 593aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung mem += v.estimateBitmapMemoryUsage(); 594aaffa8b4d4d3530e02cd6a0619b0c1485c133e55Winson Chung } 595499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mem; 597499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getFarthestPositionFrom(int pos) { 5993ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Find the index farthest away and remove that 6003ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDist = 0; 6013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int maxDistIndex = -1; 602b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistNonRequested = 0; 603b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int maxDistIndexNonRequested = -1; 6043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i : mIndexRemoteViews.keySet()) { 6053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int dist = Math.abs(i-pos); 606b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (dist > maxDistNonRequested && !mIndexMetaData.get(i).isRequested) { 607b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDistNonRequested/maxDistIndexNonRequested will store the index of the 608b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // farthest non-requested position 609b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistIndexNonRequested = i; 610b90a91c633e99d4559095184af27d1416541d3c0Winson Chung maxDistNonRequested = dist; 611b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (dist > maxDist) { 613b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // maxDist/maxDistIndex will store the index of the farthest position 614b90a91c633e99d4559095184af27d1416541d3c0Winson Chung // regardless of whether it was directly requested or not 6153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDistIndex = i; 6163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung maxDist = dist; 617c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 618c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 619b90a91c633e99d4559095184af27d1416541d3c0Winson Chung if (maxDistIndexNonRequested > -1) { 620b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return maxDistIndexNonRequested; 621b90a91c633e99d4559095184af27d1416541d3c0Winson Chung } 6223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return maxDistIndex; 623c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 624c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void queueRequestedPositionToLoad(int position) { 626b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = position; 6273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.add(position); 6293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(position); 630499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 631499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 63216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean queuePositionsToBePreloadedFromRequestedPosition(int position) { 6333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Check if we need to preload any items 6343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mPreloadLowerBound <= position && position <= mPreloadUpperBound) { 6353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int center = (mPreloadUpperBound + mPreloadLowerBound) / 2; 6363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (Math.abs(position - center) < mMaxCountSlack) { 63716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 638499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 639499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 640499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int count = 0; 6423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mMetaData) { 6433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung count = mMetaData.count; 644499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6463ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 6473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the requested indices 6493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.addAll(mRequestedIndices); 6503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 6513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Add all the preload indices 6523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int halfMaxCount = mMaxCount / 2; 6533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = position - halfMaxCount; 6543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = position + halfMaxCount; 6553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveLowerBound = Math.max(0, mPreloadLowerBound); 6563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int effectiveUpperBound = Math.min(mPreloadUpperBound, count - 1); 6573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung for (int i = effectiveLowerBound; i <= effectiveUpperBound; ++i) { 6583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.add(i); 6593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 660499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // But remove all the indices that have already been loaded and are cached 6623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.removeAll(mIndexRemoteViews.keySet()); 663499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 66416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 665499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 666b90a91c633e99d4559095184af27d1416541d3c0Winson Chung /** Returns the next index to load, and whether that index was directly requested or not */ 667b90a91c633e99d4559095184af27d1416541d3c0Winson Chung public int[] getNextIndexToLoad() { 6683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // We try and prioritize items that have been requested directly, instead 6693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // of items that are loaded as a result of the caching mechanism 6703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 6713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Prioritize requested indices to be loaded first 6723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mRequestedIndices.isEmpty()) { 6733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mRequestedIndices.iterator().next(); 6743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.remove(i); 6753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 676b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 1}; 6773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 678499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Otherwise, preload other indices as necessary 6803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (!mLoadIndices.isEmpty()) { 6813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Integer i = mLoadIndices.iterator().next(); 6823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.remove(i); 683b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{i.intValue(), 0}; 6843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 685499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 686b90a91c633e99d4559095184af27d1416541d3c0Winson Chung return new int[]{-1, 0}; 687c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung } 6883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 689c6d6d4a4e73fcb63eaa13d66fcbf26d847799838Winson Chung 6903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsRemoteViewAt(int position) { 6913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexRemoteViews.containsKey(position); 6923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public boolean containsMetaDataAt(int position) { 6943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mIndexMetaData.containsKey(position); 6953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 696499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void reset() { 69861ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // Note: We do not try and reset the meta data, since that information is still used by 69961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // collection views to validate it's own contents (and will be re-requested if the data 70061ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung // is invalidated through the notifyDataSetChanged() flow). 70161ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 7023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadLowerBound = 0; 7033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mPreloadUpperBound = -1; 704b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mLastRequestedIndex = -1; 7053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexRemoteViews.clear(); 7063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mIndexMetaData.clear(); 7073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mLoadIndices) { 7083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedIndices.clear(); 7093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mLoadIndices.clear(); 710499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 711499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 712499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 713499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 714499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public RemoteViewsAdapter(Context context, Intent intent, RemoteAdapterConnectionCallback callback) { 715499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mContext = context; 716499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mIntent = intent; 71781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mAppWidgetId = intent.getIntExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID, -1); 718a5f6f802c6e472503efd5b598dc3bab57150c1c9Winson Chung mLayoutInflater = LayoutInflater.from(context); 7199b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (mIntent == null) { 7209b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung throw new IllegalArgumentException("Non-null Intent must be specified."); 7219b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 7223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRequestedViews = new RemoteViewsFrameLayoutRefSet(); 723499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 72481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Strip the previously injected app widget id from service intent 72581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (intent.hasExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID)) { 72681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung intent.removeExtra(RemoteViews.EXTRA_REMOTEADAPTER_APPWIDGET_ID); 72781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 72881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 72981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the worker thread 730499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread = new HandlerThread("RemoteViewsCache-loader"); 731499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerThread.start(); 732499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mWorkerQueue = new Handler(mWorkerThread.getLooper()); 73381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue = new Handler(Looper.myLooper(), this); 734499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 73581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Initialize the cache and the service connection on startup 73681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mCache = new FixedSizeRemoteViewsCache(sDefaultCacheSize); 7373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mCallback = new WeakReference<RemoteAdapterConnectionCallback>(callback); 7383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mServiceConnection = new RemoteViewsAdapterServiceConnection(this); 739499cb9f516062b654952d282f211bee44c31a3c2Winson Chung requestBindService(); 740499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 741499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 742fc442bdea14289656ef1f537103578eb71faf473Jeff Brown @Override 743fc442bdea14289656ef1f537103578eb71faf473Jeff Brown protected void finalize() throws Throwable { 744fc442bdea14289656ef1f537103578eb71faf473Jeff Brown try { 745fc442bdea14289656ef1f537103578eb71faf473Jeff Brown if (mWorkerThread != null) { 746fc442bdea14289656ef1f537103578eb71faf473Jeff Brown mWorkerThread.quit(); 747fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 748fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } finally { 749fc442bdea14289656ef1f537103578eb71faf473Jeff Brown super.finalize(); 750fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 751fc442bdea14289656ef1f537103578eb71faf473Jeff Brown } 752fc442bdea14289656ef1f537103578eb71faf473Jeff Brown 7533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private void loadNextIndexInBackground() { 7543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mWorkerQueue.post(new Runnable() { 7553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung @Override 7563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung public void run() { 75716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mServiceConnection.isConnected()) { 75816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Get the next index to load 75916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int position = -1; 760b90a91c633e99d4559095184af27d1416541d3c0Winson Chung boolean isRequested = false; 76116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 762b90a91c633e99d4559095184af27d1416541d3c0Winson Chung int[] res = mCache.getNextIndexToLoad(); 763b90a91c633e99d4559095184af27d1416541d3c0Winson Chung position = res[0]; 764b90a91c633e99d4559095184af27d1416541d3c0Winson Chung isRequested = res[1] > 0; 76516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 76616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (position > -1) { 76716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item, and notify any existing RemoteViewsFrameLayouts 768b90a91c633e99d4559095184af27d1416541d3c0Winson Chung updateRemoteViews(position, isRequested); 7693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 77016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Queue up for the next one to load 77116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 77216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 77316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // No more items to load, so queue unbind 77416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 77516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 7763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 7793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 7803ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 78116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void processException(String method, Exception e) { 78216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e("RemoteViewsAdapter", "Error in " + method + ": " + e.getMessage()); 7833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 78416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we encounter a crash when updating, we should reset the metadata & cache and trigger 78516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // a notifyDataSetChanged to update the widget accordingly 78616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 78716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 78816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung metaData.reset(); 78916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 79016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 79116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 79216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 79316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 79416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 79516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 79616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 7973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 79816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 79916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 80016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 80116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void updateTemporaryMetaData() { 80216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 80316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 80416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 80516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // get the properties/first view (so that we can use it to 80616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // measure our dummy views) 80716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasStableIds = factory.hasStableIds(); 80816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int viewTypeCount = factory.getViewTypeCount(); 80916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung int count = factory.getCount(); 81016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews loadingView = factory.getLoadingView(); 81116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews firstView = null; 81216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if ((count > 0) && (loadingView == null)) { 81316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung firstView = factory.getViewAt(0); 81416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 81516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData tmpMetaData = mCache.getTemporaryMetaData(); 81616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (tmpMetaData) { 81716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.hasStableIds = hasStableIds; 81816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // We +1 because the base view type is the loading view 81916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.viewTypeCount = viewTypeCount + 1; 82016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.count = count; 82116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung tmpMetaData.setLoadingViewTemplates(loadingView, firstView); 82216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8232625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch(RemoteException e) { 82416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung processException("updateMetaData", e); 825fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen } catch(RuntimeException e) { 826fa2e3ff3d33b2cbb452d22439e98b59e07f70f3dAdam Cohen processException("updateMetaData", e); 8273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 830b90a91c633e99d4559095184af27d1416541d3c0Winson Chung private void updateRemoteViews(final int position, boolean isRequested) { 83116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) return; 83216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 83316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 83416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Load the item information from the remote service 83516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews remoteViews = null; 83616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung long itemId = 0; 83716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 83816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung remoteViews = factory.getViewAt(position); 83916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung itemId = factory.getItemId(position); 8402625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 84116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 84216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 84316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent additional work in re-centering the view cache, and 84416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // swapping from the loading view 84516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 8462625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 8472625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + e.getMessage()); 8482625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 84916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 8503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 85116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (remoteViews == null) { 85216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If a null view was returned, we break early to prevent it from getting 85316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // into our cache and causing problems later. The effect is that the child at this 85416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // position will remain as a loading view until it is updated. 85516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateRemoteViews(" + position + "): " + " null RemoteViews " + 85616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung "returned from RemoteViewsFactory."); 85716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 85816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 85916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 86016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Cache the RemoteViews we loaded 861b90a91c633e99d4559095184af27d1416541d3c0Winson Chung mCache.insert(position, remoteViews, itemId, isRequested); 86216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 86316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Notify all the views that we have previously returned for this index that 86416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // there is new data for it. 86516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViews rv = remoteViews; 86616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final int typeId = mCache.getMetaDataAt(position).typeId; 86716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 86816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 86916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 87016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.notifyOnRemoteViewsLoaded(position, rv, typeId); 87116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 87216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 8733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 874499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 875499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 8769b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung public Intent getRemoteViewsServiceIntent() { 8779b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung return mIntent; 8789b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 8799b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 880499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getCount() { 8813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 8823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 8833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.count; 8843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 887499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public Object getItem(int position) { 8883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Disallow arbitrary object to be associated with an item for the time being 889499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return null; 890499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 891499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 892499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public long getItemId(int position) { 8933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 8943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 8953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return mCache.getMetaDataAt(position).itemId; 8963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 8973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 8983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 899499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 900499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 901499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getItemViewType(int position) { 9023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = 0; 9033ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (mCache) { 9043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mCache.containsMetaDataAt(position)) { 9053ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung typeId = mCache.getMetaDataAt(position).typeId; 9063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } else { 9073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return 0; 9083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 9123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 9133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.getMappedViewType(typeId); 9143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung /** 9183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * Returns the item type id for the specified convert view. Returns -1 if the convert view 9193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung * is invalid. 9203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung */ 9213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung private int getConvertViewTypeId(View convertView) { 9223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int typeId = -1; 923a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (convertView != null) { 924a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen Object tag = convertView.getTag(com.android.internal.R.id.rowTypeId); 925a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (tag != null) { 926a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen typeId = (Integer) tag; 927a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 9283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return typeId; 930499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 931499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 932499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public View getView(int position, View convertView, ViewGroup parent) { 93316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // "Request" an index so that we can queue it for loading, initiate subsequent 93416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // preloading, etc. 93516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 93616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isInCache = mCache.containsRemoteViewAt(position); 93716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean isConnected = mServiceConnection.isConnected(); 93816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung boolean hasNewItems = false; 93916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 9407ab73e757ac6b66b0066c8ff41c2d589adacd248Winson Chung if (!isInCache && !isConnected) { 94116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Requesting bind service will trigger a super.notifyDataSetChanged(), which will 94216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // in turn trigger another request to getView() 94316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 94416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 9453ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Queue up other indices to be preloaded based on this position 94616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung hasNewItems = mCache.queuePositionsToBePreloadedFromRequestedPosition(position); 94716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 94816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 94916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (isInCache) { 9503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung View convertViewChild = null; 9513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung int convertViewTypeId = 0; 952181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen RemoteViewsFrameLayout layout = null; 953181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen 954181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen if (convertView instanceof RemoteViewsFrameLayout) { 955181d2e3172f24d8c920cbe4b446e8f938ccdc8bbAdam Cohen layout = (RemoteViewsFrameLayout) convertView; 9563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewChild = layout.getChildAt(0); 9573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung convertViewTypeId = getConvertViewTypeId(convertViewChild); 9583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 9603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Second, we try and retrieve the RemoteViews from the cache, returning a loading 9613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // view and queueing it to be loaded if it has not already been loaded. 96216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Context context = parent.getContext(); 96316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViews rv = mCache.getRemoteViewsAt(position); 964aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen RemoteViewsIndexMetaData indexMetaData = mCache.getMetaDataAt(position); 965aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen indexMetaData.isRequested = true; 966aeb66ca473a194d0b9148234a710b26ce88c4807Adam Cohen int typeId = indexMetaData.typeId; 96716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 968b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen try { 969b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Reuse the convert view where possible 970b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (layout != null) { 971b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (convertViewTypeId == typeId) { 972b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen rv.reapply(context, convertViewChild); 973b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 974b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 975b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.removeAllViews(); 976b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } else { 977b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout = new RemoteViewsFrameLayout(context); 9783ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 980b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // Otherwise, create a new view to be returned 981b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen View newView = rv.apply(context, parent); 982b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen newView.setTagInternal(com.android.internal.R.id.rowTypeId, 983b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen new Integer(typeId)); 984b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen layout.addView(newView); 985b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return layout; 986b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 987b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } catch (Exception e){ 988b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // We have to make sure that we successfully inflated the RemoteViews, if not 989b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen // we return the loading view instead. 990b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen Log.w(TAG, "Error inflating RemoteViews at position: " + position + ", using" + 991b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen "loading view instead" + e); 992b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen 993b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen RemoteViewsFrameLayout loadingView = null; 994b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen final RemoteViewsMetaData metaData = mCache.getMetaData(); 995b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen synchronized (metaData) { 996b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen loadingView = metaData.createLoadingView(position, convertView, parent); 997b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 998b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen return loadingView; 999b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } finally { 1000b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen if (hasNewItems) loadNextIndexInBackground(); 1001b7ffea697292e48c9d764c5677b69af484e045c8Adam Cohen } 100216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 100316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If the cache does not have the RemoteViews at this position, then create a 100416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // loading view and queue the actual position to be loaded in the background 100516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung RemoteViewsFrameLayout loadingView = null; 100616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 100716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (metaData) { 100816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadingView = metaData.createLoadingView(position, convertView, parent); 10093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 101016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRequestedViews.add(position, loadingView); 101216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.queueRequestedPositionToLoad(position); 101316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung loadNextIndexInBackground(); 101416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 101516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return loadingView; 10163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1018499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1019499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1020499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public int getViewTypeCount() { 10213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.viewTypeCount; 10243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1025499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1026499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1027499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean hasStableIds() { 10283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final RemoteViewsMetaData metaData = mCache.getMetaData(); 10293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung synchronized (metaData) { 10303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return metaData.hasStableIds; 10313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 1032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1033499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 1034499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public boolean isEmpty() { 1035499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return getCount() <= 0; 1036499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1037499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 103816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private void onNotifyDataSetChanged() { 103916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Complete the actual notifyDataSetChanged() call initiated earlier 104016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung IRemoteViewsFactory factory = mServiceConnection.getRemoteViewsFactory(); 104116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung try { 104216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung factory.onDataSetChanged(); 10432625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RemoteException e) { 104416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 104516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 104616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Return early to prevent from further being notified (since nothing has 104716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // changed) 104816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 10492625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen } catch (RuntimeException e) { 10502625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen Log.e(TAG, "Error in updateNotifyDataSetChanged(): " + e.getMessage()); 10512625feae79ab418355c2a4dafe8b162bba3cc1cfAdam Cohen return; 105216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 105316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 105416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Flush the cache so that we can reload new items from the service 105516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung synchronized (mCache) { 105616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.reset(); 105716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 105816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 105916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Re-request the new metadata (only after the notification to the factory) 106016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung updateTemporaryMetaData(); 106116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 106216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Propagate the notification back to the base adapter 106316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.post(new Runnable() { 10646364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung @Override 10656364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung public void run() { 10666364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung synchronized (mCache) { 106716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mCache.commitTemporaryMetaData(); 10686364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung } 106961ac7e3b3602d9d20b8876b4bf8d2e536af04a47Winson Chung 107016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung superNotifyDataSetChanged(); 107116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung enqueueDeferredUnbindServiceMessage(); 10723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 10733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung }); 10746364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung 107516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Reset the notify flagflag 107616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = false; 107716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 107816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 107916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void notifyDataSetChanged() { 108016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Dequeue any unbind messages 108116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 108216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 108316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // If we are not connected, queue up the notifyDataSetChanged to be handled when we do 108416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // connect 108516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (!mServiceConnection.isConnected()) { 108616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mNotifyDataSetChangedAfterOnServiceConnected) { 108716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 108816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 108916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 109016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mNotifyDataSetChangedAfterOnServiceConnected = true; 109116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung requestBindService(); 109216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return; 109316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 109416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 109516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mWorkerQueue.post(new Runnable() { 109616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung @Override 109716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public void run() { 109816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung onNotifyDataSetChanged(); 109916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 110016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung }); 11013ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 11023ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung 1103fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen void superNotifyDataSetChanged() { 1104499cb9f516062b654952d282f211bee44c31a3c2Winson Chung super.notifyDataSetChanged(); 1105499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1106499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 110781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung @Override 110881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung public boolean handleMessage(Message msg) { 110981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung boolean result = false; 111081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung switch (msg.what) { 111181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung case sUnbindServiceMessageType: 111281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung if (mServiceConnection.isConnected()) { 111316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.unbind(mContext, mAppWidgetId, mIntent); 111481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 111581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung result = true; 111681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 111781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung default: 111881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung break; 111981f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 112081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung return result; 112181f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 112281f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 112381f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung private void enqueueDeferredUnbindServiceMessage() { 112481f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Remove any existing deferred-unbind messages 112581f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 112681f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung mMainQueue.sendEmptyMessageDelayed(sUnbindServiceMessageType, sUnbindServiceDelay); 112781f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung } 112881f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung 1129499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private boolean requestBindService() { 113081f39eb6e76d0be1dd341af835e8002a0f80524eWinson Chung // Try binding the service (which will start it if it's not already running) 1131499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!mServiceConnection.isConnected()) { 113216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mServiceConnection.bind(mContext, mAppWidgetId, mIntent); 1133499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1134499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 113516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Remove any existing deferred-unbind messages 113616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mMainQueue.removeMessages(sUnbindServiceMessageType); 1137499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mServiceConnection.isConnected(); 1138499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 1139499cb9f516062b654952d282f211bee44c31a3c2Winson Chung} 1140