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我基本上想要顯示一個屏幕，無論應用程序已經運行，屏幕解鎖。顯示解鎖事件的屏幕/活動？
有人可以告訴我如何在手機解鎖後立即顯示文本。我可以從此繼續。
我有下面的代碼到現在，我在網上....
假設我想盡快把手機被解鎖顯示abc.xml發現。我將如何將它添加到ScreenReceiver類中？
另外我不想在應用程序運行時設置任何屏幕。是否需要運行下面的代碼作爲服務？
public class SampleActivity extends Activity {
//Declare the necessary variables
private BroadcastReceiver mReceiver;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_USER_PRESENT);
mReceiver = new ScreenReceiver();
registerReceiver(mReceiver, filter);
}
@Override
public void onDestroy()
{
super.onDestroy();
Log.v("$$$$$$", "In Method: onDestroy()");
if (mReceiver != null)
{
unregisterReceiver(mReceiver);
mReceiver = null;
}
}
}
其中屏幕Reciever類是如下
public class ScreenReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent)
{
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF))
{
Log.v("$$$$$$", "In Method: ACTION_SCREEN_OFF");
// onPause() will be called.
}
else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON))
{
Log.v("$$$$$$", "In Method: ACTION_SCREEN_ON");
//onResume() will be called.
// Better check for whether the screen was already locked
//if locked, do not take any resuming action in onResume()
//Suggest you, not to take any resuming action here.
}
else if(intent.getAction().equals(Intent.ACTION_USER_PRESENT))
{
Log.v("$$$$$$", "In Method: ACTION_USER_PRESENT");
// Handle resuming events
}
}
}