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.ActivityManagerNative;
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_LEFT_ICON);
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, R.id.old_app_description,
76                 mCurApp, R.string.old_app_action, R.string.old_app_description);
77         setIconAndText(R.id.new_app_icon, R.id.new_app_action, R.id.new_app_description,
78                 mNewApp, 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         button = findViewById((R.id.cancel));
85         button.setOnClickListener(mCancelListener);
86 
87         TypedValue out = new TypedValue();
88         getTheme().resolveAttribute(android.R.attr.alertDialogIcon, out, true);
89         getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
90                 out.resourceId);
91     }
92 
setText(int id, CharSequence text)93     void setText(int id, CharSequence text) {
94         ((TextView)findViewById(id)).setText(text);
95     }
96 
setDrawable(int id, Drawable dr)97     void setDrawable(int id, Drawable dr) {
98         if (dr != null) {
99             ((ImageView)findViewById(id)).setImageDrawable(dr);
100         }
101     }
102 
setIconAndText(int iconId, int actionId, int descriptionId, String packageName, int actionStr, int descriptionStr)103     void setIconAndText(int iconId, int actionId, int descriptionId,
104             String packageName, int actionStr, int descriptionStr) {
105         CharSequence appName = "";
106         Drawable appIcon = null;
107         if (mCurApp != null) {
108             try {
109                 ApplicationInfo info = getPackageManager().getApplicationInfo(
110                         packageName, 0);
111                 appName = info.loadLabel(getPackageManager());
112                 appIcon = info.loadIcon(getPackageManager());
113             } catch (PackageManager.NameNotFoundException e) {
114             }
115         }
116 
117         setDrawable(iconId, appIcon);
118         setText(actionId, getString(actionStr, appName));
119         setText(descriptionId, getText(descriptionStr));
120     }
121 
122     private OnClickListener mSwitchOldListener = new OnClickListener() {
123         public void onClick(View v) {
124             try {
125                 ActivityManagerNative.getDefault().moveTaskToFront(mCurTask, 0, null);
126             } catch (RemoteException e) {
127             }
128             finish();
129         }
130     };
131 
132     private OnClickListener mSwitchNewListener = new OnClickListener() {
133         public void onClick(View v) {
134             try {
135                 ActivityManagerNative.getDefault().finishHeavyWeightApp();
136             } catch (RemoteException e) {
137             }
138             try {
139                 if (mHasResult) {
140                     startIntentSenderForResult(mStartIntent, -1, null,
141                             Intent.FLAG_ACTIVITY_FORWARD_RESULT,
142                             Intent.FLAG_ACTIVITY_FORWARD_RESULT, 0);
143                 } else {
144                     startIntentSenderForResult(mStartIntent, -1, null, 0, 0, 0);
145                 }
146             } catch (IntentSender.SendIntentException ex) {
147                 Log.w("HeavyWeightSwitcherActivity", "Failure starting", ex);
148             }
149             finish();
150         }
151     };
152 
153     private OnClickListener mCancelListener = new OnClickListener() {
154         public void onClick(View v) {
155             finish();
156         }
157     };
158 }
159