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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tests.appwidgethost;
     18 
     19 import android.app.Activity;
     20 import android.content.ComponentName;
     21 import android.content.Context;
     22 import android.content.Intent;
     23 import android.content.SharedPreferences;
     24 import android.appwidget.AppWidgetHost;
     25 import android.appwidget.AppWidgetHostView;
     26 import android.appwidget.AppWidgetProviderInfo;
     27 import android.appwidget.AppWidgetManager;
     28 import android.os.Bundle;
     29 import android.util.Log;
     30 import android.view.ContextMenu;
     31 import android.view.MenuItem;
     32 import android.view.View;
     33 import android.widget.LinearLayout;
     34 
     35 public class AppWidgetHostActivity extends Activity
     36 {
     37     static final String TAG = "AppWidgetHostActivity";
     38 
     39     static final int DISCOVER_APPWIDGET_REQUEST = 1;
     40     static final int CONFIGURE_APPWIDGET_REQUEST = 2;
     41     static final int HOST_ID = 1234;
     42 
     43     static final String PENDING_APPWIDGET_ID = "pending_appwidget";
     44 
     45     AppWidgetManager mAppWidgetManager;
     46     AppWidgetContainerView mAppWidgetContainer;
     47 
     48     public AppWidgetHostActivity() {
     49     }
     50 
     51     @Override
     52     public void onCreate(Bundle icicle) {
     53         super.onCreate(icicle);
     54         mAppWidgetManager = AppWidgetManager.getInstance(this);
     55 
     56         setContentView(R.layout.appwidget_host);
     57 
     58         mHost = new AppWidgetHost(this, HOST_ID) {
     59                 protected AppWidgetHostView onCreateView(Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
     60                     return new MyAppWidgetView(appWidgetId);
     61                 }
     62             };
     63 
     64 
     65         findViewById(R.id.add_appwidget).setOnClickListener(mOnClickListener);
     66         mAppWidgetContainer = (AppWidgetContainerView)findViewById(R.id.appwidget_container);
     67 
     68         if (false) {
     69             if (false) {
     70                 mHost.deleteHost();
     71             } else {
     72                 AppWidgetHost.deleteAllHosts();
     73             }
     74         }
     75     }
     76 
     77     View.OnClickListener mOnClickListener = new View.OnClickListener() {
     78         public void onClick(View v) {
     79             discoverAppWidget(DISCOVER_APPWIDGET_REQUEST);
     80         }
     81     };
     82 
     83     void discoverAppWidget(int requestCode) {
     84         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
     85         intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mHost.allocateAppWidgetId());
     86         startActivityForResult(intent, requestCode);
     87     }
     88 
     89     void configureAppWidget(int requestCode, int appWidgetId, ComponentName configure) {
     90         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
     91         intent.setComponent(configure);
     92         intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
     93         SharedPreferences.Editor prefs = getPreferences(0).edit();
     94         prefs.putInt(PENDING_APPWIDGET_ID, appWidgetId);
     95         prefs.commit();
     96         startActivityForResult(intent, requestCode);
     97     }
     98 
     99     void handleAppWidgetPickResult(int resultCode, Intent intent) {
    100         // BEGIN_INCLUDE(getExtra_EXTRA_APPWIDGET_ID)
    101         Bundle extras = intent.getExtras();
    102         int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
    103         // END_INCLUDE(getExtra_EXTRA_APPWIDGET_ID)
    104         if (resultCode == RESULT_OK) {
    105             AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
    106 
    107             if (appWidget.configure != null) {
    108                 // configure the AppWidget if we should
    109                 configureAppWidget(CONFIGURE_APPWIDGET_REQUEST, appWidgetId, appWidget.configure);
    110             } else {
    111                 // just add it as is
    112                 addAppWidgetView(appWidgetId, appWidget);
    113             }
    114         } else {
    115             mHost.deleteAppWidgetId(appWidgetId);
    116         }
    117     }
    118 
    119     void handleAppWidgetConfigureResult(int resultCode, Intent data) {
    120         int appWidgetId = getPreferences(0).getInt(PENDING_APPWIDGET_ID, -1);
    121         Log.d(TAG, "resultCode=" + resultCode + " appWidgetId=" + appWidgetId);
    122         if (appWidgetId < 0) {
    123             Log.w(TAG, "was no preference for PENDING_APPWIDGET_ID");
    124             return;
    125         }
    126         if (resultCode == RESULT_OK) {
    127             AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
    128             addAppWidgetView(appWidgetId, appWidget);
    129         } else {
    130             mHost.deleteAppWidgetId(appWidgetId);
    131         }
    132     }
    133 
    134     void addAppWidgetView(int appWidgetId, AppWidgetProviderInfo appWidget) {
    135         // Inflate the AppWidget's RemoteViews
    136         AppWidgetHostView view = mHost.createView(this, appWidgetId, appWidget);
    137 
    138         // Add it to the list
    139         LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
    140                 LinearLayout.LayoutParams.MATCH_PARENT,
    141                 LinearLayout.LayoutParams.WRAP_CONTENT);
    142         mAppWidgetContainer.addView(view, layoutParams);
    143 
    144         registerForContextMenu(view);
    145     }
    146 
    147     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    148         switch (requestCode) {
    149         case DISCOVER_APPWIDGET_REQUEST:
    150             handleAppWidgetPickResult(resultCode, data);
    151             break;
    152         case CONFIGURE_APPWIDGET_REQUEST:
    153             handleAppWidgetConfigureResult(resultCode, data);
    154         }
    155     }
    156 
    157     protected void onStart() {
    158         super.onStart();
    159         mHost.startListening();
    160     }
    161 
    162     protected void onStop() {
    163         super.onStop();
    164         mHost.stopListening();
    165     }
    166 
    167     public void onCreateContextMenu(ContextMenu menu, View v,
    168             ContextMenu.ContextMenuInfo menuInfo) {
    169         menu.add(ContextMenu.NONE, R.string.delete_appwidget, ContextMenu.NONE,
    170                 R.string.delete_appwidget);
    171     }
    172 
    173     public boolean onContextItemSelected(MenuItem item) {
    174         MyAppWidgetView view = (MyAppWidgetView)item.getMenuInfo();
    175         switch (item.getItemId()) {
    176         case R.string.delete_appwidget:
    177             Log.d(TAG, "delete! " + view.appWidgetId);
    178             mAppWidgetContainer.removeView(view);
    179             mHost.deleteAppWidgetId(view.appWidgetId);
    180             break;
    181         }
    182 
    183         return true;
    184     }
    185 
    186     class MyAppWidgetView extends AppWidgetHostView implements ContextMenu.ContextMenuInfo {
    187         int appWidgetId;
    188 
    189         MyAppWidgetView(int appWidgetId) {
    190             super(AppWidgetHostActivity.this);
    191             this.appWidgetId = appWidgetId;
    192         }
    193 
    194         public ContextMenu.ContextMenuInfo getContextMenuInfo() {
    195             return this;
    196         }
    197     }
    198 
    199     AppWidgetHost mHost;
    200 }
    201 
    202 
    203