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      1 /*
      2  * Copyright (C) 2007 Google Inc.
      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.os.storage.ExternalStorageFormatter;
     20 
     21 import android.app.AlertDialog;
     22 import android.content.BroadcastReceiver;
     23 import android.content.Context;
     24 import android.content.DialogInterface;
     25 import android.content.Intent;
     26 import android.content.IntentFilter;
     27 import android.os.Bundle;
     28 import android.util.Log;
     29 
     30 /**
     31  * This activity is shown to the user to confirm formatting of external media.
     32  * It uses the alert dialog style. It will be launched from a notification, or from settings
     33  */
     34 public class ExternalMediaFormatActivity extends AlertActivity implements DialogInterface.OnClickListener {
     35 
     36     private static final int POSITIVE_BUTTON = AlertDialog.BUTTON_POSITIVE;
     37 
     38     /** Used to detect when the media state changes, in case we need to call finish() */
     39     private BroadcastReceiver mStorageReceiver = new BroadcastReceiver() {
     40         @Override
     41         public void onReceive(Context context, Intent intent) {
     42             String action = intent.getAction();
     43             Log.d("ExternalMediaFormatActivity", "got action " + action);
     44 
     45             if (action == Intent.ACTION_MEDIA_REMOVED ||
     46                 action == Intent.ACTION_MEDIA_CHECKING ||
     47                 action == Intent.ACTION_MEDIA_MOUNTED ||
     48                 action == Intent.ACTION_MEDIA_SHARED) {
     49                 finish();
     50             }
     51         }
     52     };
     53 
     54     @Override
     55     protected void onCreate(Bundle savedInstanceState) {
     56         super.onCreate(savedInstanceState);
     57 
     58         Log.d("ExternalMediaFormatActivity", "onCreate!");
     59         // Set up the "dialog"
     60         final AlertController.AlertParams p = mAlertParams;
     61         p.mIconId = com.android.internal.R.drawable.stat_sys_warning;
     62         p.mTitle = getString(com.android.internal.R.string.extmedia_format_title);
     63         p.mMessage = getString(com.android.internal.R.string.extmedia_format_message);
     64         p.mPositiveButtonText = getString(com.android.internal.R.string.extmedia_format_button_format);
     65         p.mPositiveButtonListener = this;
     66         p.mNegativeButtonText = getString(com.android.internal.R.string.cancel);
     67         p.mNegativeButtonListener = this;
     68         setupAlert();
     69     }
     70 
     71     @Override
     72     protected void onResume() {
     73         super.onResume();
     74 
     75         IntentFilter filter = new IntentFilter();
     76         filter.addAction(Intent.ACTION_MEDIA_REMOVED);
     77         filter.addAction(Intent.ACTION_MEDIA_CHECKING);
     78         filter.addAction(Intent.ACTION_MEDIA_MOUNTED);
     79         filter.addAction(Intent.ACTION_MEDIA_SHARED);
     80         registerReceiver(mStorageReceiver, filter);
     81     }
     82 
     83     @Override
     84     protected void onPause() {
     85         super.onPause();
     86 
     87         unregisterReceiver(mStorageReceiver);
     88     }
     89 
     90     /**
     91      * {@inheritDoc}
     92      */
     93     public void onClick(DialogInterface dialog, int which) {
     94 
     95         if (which == POSITIVE_BUTTON) {
     96             Intent intent = new Intent(ExternalStorageFormatter.FORMAT_ONLY);
     97             intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME);
     98             startService(intent);
     99         }
    100 
    101         // No matter what, finish the activity
    102         finish();
    103     }
    104 }
    105