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我在尝试制作一个非常简单的应用程序时遇到了一种奇怪的行为。我正在发出通知，当用户单击它时，我将一些随机文本复制到剪贴板。这是我触发通知的方式：

// Build notification
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Intent intent = new Intent(this, NotificationBroadcastReceiver.class);
intent.putExtra("test", "hello");
PendingIntent broadcastIntent = PendingIntent.getBroadcast(this, 0, intent, Intent.FILL_IN_DATA | PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder notification = new NotificationCompat.Builder(this)
        .setContentTitle("Hello!")
        .setContentText("Hi!")
        .setSmallIcon(R.drawable.icon)
        .setContentIntent(broadcastIntent)
        .setOngoing(false)
        .setDefaults(Notification.DEFAULT_ALL)
        .setTicker("Click me!")
        .setAutoCancel(true);
notificationManager.notify(0, notification.build());

这是我的BroadcastReceiver：

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    public NotificationBroadcastReceiver() {

    }

    @Override
    public void onReceive(Context context, Intent 
        // Copy the text to the clipboard when notification is clicked
        ClipboardManager clipboard = (ClipboardManager) context.getSystemService(context.CLIPBOARD_SERVICE);
        ClipData clip = ClipData.newPlainText("", "");
        clipboard.setPrimaryClip(clip);
    }
}

我只是将一个空字符串复制到剪贴板。这样，当我单击通知时，它不会像设置时那样关闭setAutoCancel(true)，但是如果我删除该行：

clipboard.setPrimaryClip(clip);

从那时BroadcastReceiver起，通知会在点击时被取消。为什么会这样？

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0 回答 0