Android通知栏，应始终可见。通知栏有2个按钮，其中第一个是抓一些数据存储和第二个开放活动，将显示所有的数据。我遇到了一个问题，当我关闭应用程序，然后按通知按钮开始活动，活动开始后，我通知按钮停止响应。需要注意的是按键做工精细前点所在的第二按钮点击开始活动。
这里是一个模板代码为我的通知服务和通知栏按钮处理程序
服务处理的通知栏
```
public class NotificationBarService extends Service {
private int notificationID;
@Override
public IBinder onBind(Intent intent){
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId){
notificationID = new Random().nextInt();
RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification);
contentView.setImageViewResource(R.id.image, R.mipmap.ic_launcher);
contentView.setTextViewText(R.id.title, "Custom notification");
contentView.setTextViewText(R.id.text, "This is a custom layout");
//Handle the button for showing bookmarks on custom notification
Intent buttonsIntent2 = new Intent(this, NotificationBarButtonActivityHandler.class);
buttonsIntent2.putExtra(PENDING_ACTION, SHOW_BOOKMARKS);
contentView.setOnClickPendingIntent(R.id.notificationBarShowBookmarksButton, PendingIntent.getActivity(this, 0, buttonsIntent2, 0));
//Handle the button for adding bookmark on custom notification
Intent buttonsIntent = new Intent(this, NotificationBarButtonActivityHandler.class);
buttonsIntent.putExtra(PENDING_ACTION, REGISTER_BOOKMARK);
contentView.setOnClickPendingIntent(R.id.notificationBarAddBookmarkFromChromeButton, PendingIntent.getActivity(this, 1, buttonsIntent, 0));
RemoteViews notificationView = new RemoteViews(getPackageName(),
R.layout.custom_notification);
Intent switchIntent = new Intent(this, NotificationBarService.class);
PendingIntent pendingSwitchIntent = PendingIntent.getBroadcast(this, 0,
switchIntent, 0);
notificationView.setOnClickPendingIntent(R.id.notificationBarShowBookmarksButton,
pendingSwitchIntent);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setContent(contentView)
.setSmallIcon(R.drawable.notification_small_icon)
.setOngoing(true);
Notification notification = mBuilder.build();
startForeground(notificationID, notification);
return START_STICKY;
}
@Override
public void onDestroy(){
super.onDestroy();
stopForeground(true);
}
}
```
类处理按钮按下通知栏
```
public class NotificationBarButtonActivityHandler extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String action = (String) getIntent().getExtras().get(NotificationBarService.PENDING_ACTION);
if (action != null) {
if (action.equals(NotificationBarService.REGISTER_BOOKMARK)){
CustomLogger.log("---------------- BUTTON FOR COLLECT DATA WAS PRESSED!!!");
//Does something here
}
else if(action.equals(NotificationBarService.SHOW_BOOKMARKS)){
CustomLogger.log("---------------- BUTTON FOR SHOW DATA WAS PRESSSED!!!");
//Notification bar buttons start not responding right after
//this is executed. Note that this problem only occurs if I close the app
//and press the notification button to execute this code.
//Otherwise this works just fine.
Intent intent2;
intent2 = new Intent(this, BookmarkDisplayActivity.class);
startActivity(intent2);
}
}
finish();
}
}
```
最后，我终于解决了这个问题，我在改变，我处理按键的方式。这是我现在的工作。
在NotificationBarService，可以这样处理按钮
```
Intent addBookmarkIntent = new Intent(this, NotificationBarButtonListener.class);
addBookmarkIntent.setAction(ADD_BOOKMARK_ACTION);
PendingIntent pendingAddBookmarkIntent = PendingIntent.getBroadcast(this, 0, addBookmarkIntent, 0);
contentView.setOnClickPendingIntent(R.id.notificationBarAddBookmarkFromChromeButton, pendingAddBookmarkIntent);
Intent showBookmarkIntent = new Intent(this, NotificationBarButtonListener.class);
showBookmarkIntent.setAction(SHOW_BOOKMARK_ACTION);
PendingIntent pendingShowBookmarkIntent = PendingIntent.getBroadcast(this, 0, showBookmarkIntent, 0);
contentView.setOnClickPendingIntent(R.id.notificationBarShowBookmarksButton, pendingShowBookmarkIntent);
```
然后我收到广播甚至和处理这样的
```
public static class NotificationBarButtonListener extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if(action.equals(ADD_BOOKMARK_ACTION)){
CustomLogger.log("---------------- BUTTON FOR REGISTER BOOKMARK WAS PRESSED!!! ");
}
else if(action.equals(SHOW_BOOKMARK_ACTION)){
CustomLogger.log("---------------- BUTTON FOR SHOW BOOKMARK WAS PRESSSED!!!");
}
}
}
```
原文地址： http://www.apkbus.com/blog-927916-76546.html
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