1 /*
2  * Copyright (C) 2010 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.internal.app;
18 
19 import android.app.Activity;
20 import android.app.ActivityManager;
21 import android.app.ActivityTaskManager;
22 import android.app.ActivityThread;
23 import android.app.IApplicationThread;
24 import android.content.Intent;
25 import android.content.IntentSender;
26 import android.content.pm.ApplicationInfo;
27 import android.content.pm.PackageManager;
28 import android.graphics.drawable.Drawable;
29 import android.os.Bundle;
30 import android.os.RemoteException;
31 import android.util.Log;
32 import android.view.View;
33 import android.view.View.OnClickListener;
34 import android.view.Window;
35 import android.widget.ImageView;
36 import android.widget.TextView;
37 
38 import com.android.internal.R;
39 
40 /**
41  * This activity is displayed when the system attempts to start an Intent for
42  * which there is more than one matching activity, allowing the user to decide
43  * which to go to.  It is not normally used directly by application developers.
44  */
45 public class HeavyWeightSwitcherActivity extends Activity {
46     /** The PendingIntent of the new activity being launched. */
47     public static final String KEY_INTENT = "intent";
48     /** Set if the caller is requesting a result. */
49     public static final String KEY_HAS_RESULT = "has_result";
50     /** Package of current heavy-weight app. */
51     public static final String KEY_CUR_APP = "cur_app";
52     /** Task that current heavy-weight activity is running in. */
53     public static final String KEY_CUR_TASK = "cur_task";
54     /** Package of newly requested heavy-weight app. */
55     public static final String KEY_NEW_APP = "new_app";
56 
57     IntentSender mStartIntent;
58     boolean mHasResult;
59     String mCurApp;
60     int mCurTask;
61     String mNewApp;
62 
63     @Override
onCreate(Bundle savedInstanceState)64     protected void onCreate(Bundle savedInstanceState) {
65         super.onCreate(savedInstanceState);
66 
67         requestWindowFeature(Window.FEATURE_NO_TITLE);
68 
69         mStartIntent = (IntentSender)getIntent().getParcelableExtra(KEY_INTENT);
70         mHasResult = getIntent().getBooleanExtra(KEY_HAS_RESULT, false);
71         mCurApp = getIntent().getStringExtra(KEY_CUR_APP);
72         mCurTask = getIntent().getIntExtra(KEY_CUR_TASK, 0);
73         mNewApp = getIntent().getStringExtra(KEY_NEW_APP);
74 
75         setContentView(com.android.internal.R.layout.heavy_weight_switcher);
76 
77         setIconAndText(R.id.old_app_icon, R.id.old_app_action, 0,
78                 mCurApp, mNewApp, R.string.old_app_action, 0);
79         setIconAndText(R.id.new_app_icon, R.id.new_app_action, R.id.new_app_description,
80                 mNewApp, mCurApp, R.string.new_app_action, R.string.new_app_description);
81 
82         View button = findViewById((R.id.switch_old));
83         button.setOnClickListener(mSwitchOldListener);
84         button = findViewById((R.id.switch_new));
85         button.setOnClickListener(mSwitchNewListener);
86     }
87 
setText(int id, CharSequence text)88     void setText(int id, CharSequence text) {
89         ((TextView)findViewById(id)).setText(text);
90     }
91 
setDrawable(int id, Drawable dr)92     void setDrawable(int id, Drawable dr) {
93         if (dr != null) {
94             ((ImageView)findViewById(id)).setImageDrawable(dr);
95         }
96     }
97 
setIconAndText(int iconId, int actionId, int descriptionId, String packageName, String otherPackageName, int actionStr, int descriptionStr)98     void setIconAndText(int iconId, int actionId, int descriptionId,
99             String packageName, String otherPackageName, int actionStr, int descriptionStr) {
100         CharSequence appName = packageName;
101         Drawable appIcon = null;
102         if (packageName != null) {
103             try {
104                 ApplicationInfo info = getPackageManager().getApplicationInfo(
105                         packageName, 0);
106                 appName = info.loadLabel(getPackageManager());
107                 appIcon = info.loadIcon(getPackageManager());
108             } catch (PackageManager.NameNotFoundException e) {
109             }
110         }
111 
112         setDrawable(iconId, appIcon);
113         setText(actionId, getString(actionStr, appName));
114         if (descriptionId != 0) {
115             CharSequence otherAppName = otherPackageName;
116             if (otherPackageName != null) {
117                 try {
118                     ApplicationInfo info = getPackageManager().getApplicationInfo(
119                             otherPackageName, 0);
120                     otherAppName = info.loadLabel(getPackageManager());
121                 } catch (PackageManager.NameNotFoundException e) {
122                 }
123             }
124             setText(descriptionId, getString(descriptionStr, otherAppName));
125         }
126     }
127 
128     private OnClickListener mSwitchOldListener = new OnClickListener() {
129         public void onClick(View v) {
130             try {
131                 ActivityThread thread = ActivityThread.currentActivityThread();
132                 IApplicationThread appThread = thread.getApplicationThread();
133                 ActivityTaskManager.getService().moveTaskToFront(appThread, getPackageName(),
134                         mCurTask, 0, null);
135             } catch (RemoteException e) {
136             }
137             finish();
138         }
139     };
140 
141     private OnClickListener mSwitchNewListener = new OnClickListener() {
142         public void onClick(View v) {
143             try {
144                 ActivityManager.getService().finishHeavyWeightApp();
145             } catch (RemoteException e) {
146             }
147             try {
148                 if (mHasResult) {
149                     startIntentSenderForResult(mStartIntent, -1, null,
150                             Intent.FLAG_ACTIVITY_FORWARD_RESULT,
151                             Intent.FLAG_ACTIVITY_FORWARD_RESULT, 0);
152                 } else {
153                     startIntentSenderForResult(mStartIntent, -1, null, 0, 0, 0);
154                 }
155             } catch (IntentSender.SendIntentException ex) {
156                 Log.w("HeavyWeightSwitcherActivity", "Failure starting", ex);
157             }
158             finish();
159         }
160     };
161 }
162