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