AppWidgetHostActivity.java revision 980a938c1c9a6a5791a8240e5a1e6638ab28dc77 
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
17package com.android.tests.appwidgethost;
18
19import android.app.Activity;
20import android.content.ComponentName;
21import android.content.Context;
22import android.content.Intent;
23import android.content.SharedPreferences;
24import android.appwidget.AppWidgetHost;
25import android.appwidget.AppWidgetHostView;
26import android.appwidget.AppWidgetProviderInfo;
27import android.appwidget.AppWidgetManager;
28import android.os.Bundle;
29import android.util.Log;
30import android.view.ContextMenu;
31import android.view.MenuItem;
32import android.view.View;
33import android.widget.LinearLayout;
34
35public 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        mAppWidgetManager = AppWidgetManager.getInstance(this);
50    }
51
52    @Override
53    public void onCreate(Bundle icicle) {
54        super.onCreate(icicle);
55        setContentView(R.layout.appwidget_host);
56
57        findViewById(R.id.add_appwidget).setOnClickListener(mOnClickListener);
58        mAppWidgetContainer = (AppWidgetContainerView)findViewById(R.id.appwidget_container);
59
60        if (false) {
61            if (false) {
62                mHost.deleteHost();
63            } else {
64                AppWidgetHost.deleteAllHosts();
65            }
66        }
67    }
68
69    View.OnClickListener mOnClickListener = new View.OnClickListener() {
70        public void onClick(View v) {
71            discoverAppWidget(DISCOVER_APPWIDGET_REQUEST);
72        }
73    };
74
75    void discoverAppWidget(int requestCode) {
76        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
77        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mHost.allocateAppWidgetId());
78        startActivityForResult(intent, requestCode);
79    }
80
81    void configureAppWidget(int requestCode, int appWidgetId, ComponentName configure) {
82        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
83        intent.setComponent(configure);
84        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
85        SharedPreferences.Editor prefs = getPreferences(0).edit();
86        prefs.putInt(PENDING_APPWIDGET_ID, appWidgetId);
87        prefs.commit();
88        startActivityForResult(intent, requestCode);
89    }
90
91    void handleAppWidgetPickResult(int resultCode, Intent intent) {
92        // BEGIN_INCLUDE(getExtra_EXTRA_APPWIDGET_ID)
93        Bundle extras = intent.getExtras();
94        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
95        // END_INCLUDE(getExtra_EXTRA_APPWIDGET_ID)
96        if (resultCode == RESULT_OK) {
97            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
98
99            if (appWidget.configure != null) {
100                // configure the AppWidget if we should
101                configureAppWidget(CONFIGURE_APPWIDGET_REQUEST, appWidgetId, appWidget.configure);
102            } else {
103                // just add it as is
104                addAppWidgetView(appWidgetId, appWidget);
105            }
106        } else {
107            mHost.deleteAppWidgetId(appWidgetId);
108        }
109    }
110
111    void handleAppWidgetConfigureResult(int resultCode, Intent data) {
112        int appWidgetId = getPreferences(0).getInt(PENDING_APPWIDGET_ID, -1);
113        Log.d(TAG, "resultCode=" + resultCode + " appWidgetId=" + appWidgetId);
114        if (appWidgetId < 0) {
115            Log.w(TAG, "was no preference for PENDING_APPWIDGET_ID");
116            return;
117        }
118        if (resultCode == RESULT_OK) {
119            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
120            addAppWidgetView(appWidgetId, appWidget);
121        } else {
122            mHost.deleteAppWidgetId(appWidgetId);
123        }
124    }
125
126    void addAppWidgetView(int appWidgetId, AppWidgetProviderInfo appWidget) {
127        // Inflate the AppWidget's RemoteViews
128        AppWidgetHostView view = mHost.createView(this, appWidgetId, appWidget);
129
130        // Add it to the list
131        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
132                LinearLayout.LayoutParams.MATCH_PARENT,
133                LinearLayout.LayoutParams.WRAP_CONTENT);
134        mAppWidgetContainer.addView(view, layoutParams);
135
136        registerForContextMenu(view);
137    }
138
139    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
140        switch (requestCode) {
141        case DISCOVER_APPWIDGET_REQUEST:
142            handleAppWidgetPickResult(resultCode, data);
143            break;
144        case CONFIGURE_APPWIDGET_REQUEST:
145            handleAppWidgetConfigureResult(resultCode, data);
146        }
147    }
148
149    protected void onStart() {
150        super.onStart();
151        mHost.startListening();
152    }
153
154    protected void onStop() {
155        super.onStop();
156        mHost.stopListening();
157    }
158
159    public void onCreateContextMenu(ContextMenu menu, View v,
160            ContextMenu.ContextMenuInfo menuInfo) {
161        menu.add(ContextMenu.NONE, R.string.delete_appwidget, ContextMenu.NONE,
162                R.string.delete_appwidget);
163    }
164
165    public boolean onContextItemSelected(MenuItem item) {
166        MyAppWidgetView view = (MyAppWidgetView)item.getMenuInfo();
167        switch (item.getItemId()) {
168        case R.string.delete_appwidget:
169            Log.d(TAG, "delete! " + view.appWidgetId);
170            mAppWidgetContainer.removeView(view);
171            mHost.deleteAppWidgetId(view.appWidgetId);
172            break;
173        }
174
175        return true;
176    }
177
178    class MyAppWidgetView extends AppWidgetHostView implements ContextMenu.ContextMenuInfo {
179        int appWidgetId;
180
181        MyAppWidgetView(int appWidgetId) {
182            super(AppWidgetHostActivity.this);
183            this.appWidgetId = appWidgetId;
184        }
185
186        public ContextMenu.ContextMenuInfo getContextMenuInfo() {
187            return this;
188        }
189    }
190
191    AppWidgetHost mHost = new AppWidgetHost(this, HOST_ID) {
192        protected AppWidgetHostView onCreateView(Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
193            return new MyAppWidgetView(appWidgetId);
194        }
195    };
196}
197
198
199