Android Keygurad が外されたことを検知する

ロックを設定している場合、Intent.ACTION_SCREEN_ON だと画面がオンになった状態で通知がくるので、ロックが外れる前に通知がきてしまいます。画面がオンになったあと、ロックが外れた時に通知を受け取るには Intent.ACTION_USER_PRESENT を拾うようにします。

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1. public class UserPresentSampleActivity extends Activity {  
2.   
3.     private static final String TAG = "UserPresentSampleActivity";  
4.       
5.     @Override  
6.     public void onCreate(Bundle savedInstanceState) {  
7.         super.onCreate(savedInstanceState);  
8.         setContentView(R.layout.main);  
9.     }  
10.       
11.     @Override  
12.     protected void onResume() {  
13.         super.onResume();  
14.   
15.         IntentFilter filter = new IntentFilter();  
16.         filter.addAction(Intent.ACTION_USER_PRESENT);  
17.         filter.addAction(Intent.ACTION_SCREEN_ON);  
18.         filter.addAction(Intent.ACTION_SCREEN_OFF);  
19.         registerReceiver(mReceiver, filter);  
20.     };  
21.   
22.     @Override  
23.     protected void onPause() {  
24.         super.onPause();  
25.           
26.         unregisterReceiver(mReceiver);  
27.     };  
28.       
29.     BroadcastReceiver mReceiver = new BroadcastReceiver() {  
30.   
31.         @Override  
32.         public void onReceive(Context context, Intent intent) {  
33.             String action = intent.getAction();  
34.   
35.             Log.d(TAG, "mReceiver received : " + action);  
36.   
37.             if(action.equals(Intent.ACTION_USER_PRESENT)){  
38.             }  
39.             else if(action.equals(Intent.ACTION_SCREEN_ON)){  
40.             }  
41.             else if(action.equals(Intent.ACTION_SCREEN_OFF)){                  
42.             }  
43.         }  
44.     };      
45. }  


public class UserPresentSampleActivity extends Activity {

private static final String TAG = "UserPresentSampleActivity";

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}

@Override
protected void onResume() {
super.onResume();

IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_USER_PRESENT);
filter.addAction(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
registerReceiver(mReceiver, filter);
};

@Override
protected void onPause() {
super.onPause();

unregisterReceiver(mReceiver);
};

BroadcastReceiver mReceiver = new BroadcastReceiver() {

@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();

Log.d(TAG, "mReceiver received : " + action);

if(action.equals(Intent.ACTION_USER_PRESENT)){
}
else if(action.equals(Intent.ACTION_SCREEN_ON)){
}
else if(action.equals(Intent.ACTION_SCREEN_OFF)){
}
}
};
}



D/UserPresentSampleActivity( 9858): mReceiver received : android.intent.action.SCREEN_ON
D/UserPresentSampleActivity( 9858): mReceiver received : android.intent.action.USER_PRESENT
D/UserPresentSampleActivity( 9858): mReceiver received : android.intent.action.SCREEN_OFF