android - 通知将无法使用通知管理器和 notification.builder

Question

我是 Android 开发的新手，我正在为在我的应用程序中实现通知而苦苦挣扎。 基本上问题是通知不会出现(一开始就出现了)，我不知道为什么，我在这里和其他论坛上查看了其他通知问题，但仍然没有设法解决矿。 它变得非常令人沮丧，我将它发布在这里作为最后的手段，因为我已经厌倦了猜测出了什么问题...... 这是我的代码，我没有收到任何错误，但通知根本不会显示。 任何帮助将不胜感激。

无论如何，这是代码，我已经在 list 和所有内容中声明了 brodcastReciver。

谢谢，埃拉德

public class NotificationService extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Activity.NOTIFICATION_SERVICE);

    PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
            new Intent(context, SplashTest.class), 0);
    int mNotificationId = 001;

    Notification notification = new Notification.Builder(context)

            .setContentTitle("Title")
            .setContentText("Text")
            .setSmallIcon(R.drawable.notification_icon)
            .setContentIntent(contentIntent)
            .build();

    notificationManager.notify(mNotificationId, notification);

}

---

更新

非常感谢! 我在一段时间后使用 AlarmManager 调用通知，此通知应打开一个 Activity 。 Alarammanager 似乎有效，因为当我尝试调用不同的 Activity (而不是通知)时，它会在正确的时间打开它，但是当我调用通知时，什么也没有发生。

我在尝试实现您的代码时遇到了一些错误，我做错了什么？

    public class NewNotificationService extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            int mNotificationId = 0015;
            int icon = R.drawable.notification_icon;

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
    .setSmallIcon(R.drawable.notification_icon)
    .setContentTitle("My notification")
    .setContentText("Hello World!");

Intent resultIntent = new Intent(this, SplashTest.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(SplashTest.class); 
stackBuilder.addNextIntent(resultIntent);

PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
                                    0, PendingIntent.FLAG_UPDATE_CURRENT );
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

mNotificationManager.notify(0, mBuilder.build());

logcat 没有显示任何内容，但控制台给出了这个:

    [2013-06-25 23:45:30 - ddmlib] Broken pipe
java.io.IOException: Broken pipe
    at sun.nio.ch.FileDispatcher.write0(Native Method)
    at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
    at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:69)
    at sun.nio.ch.IOUtil.write(IOUtil.java:40)
    at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:336)
    at com.android.ddmlib.JdwpPacket.writeAndConsume(JdwpPacket.java:213)
    at com.android.ddmlib.Client.sendAndConsume(Client.java:607)
    at com.android.ddmlib.HandleHeap.sendREAQ(HandleHeap.java:348)
    at com.android.ddmlib.Client.requestAllocationStatus(Client.java:453)
    at com.android.ddmlib.DeviceMonitor.createClient(DeviceMonitor.java:835)
    at com.android.ddmlib.DeviceMonitor.openClient(DeviceMonitor.java:803)
    at com.android.ddmlib.DeviceMonitor.processIncomingJdwpData(DeviceMonitor.java:763)
    at com.android.ddmlib.DeviceMonitor.deviceClientMonitorLoop(DeviceMonitor.java:652)
    at com.android.ddmlib.DeviceMonitor.access$100(DeviceMonitor.java:44)
    at com.android.ddmlib.DeviceMonitor$3.run(DeviceMonitor.java:580)

Answer 1

According to the documentation ，你可以尝试这样的事情

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
    .setSmallIcon(R.drawable.notification_icon)
    .setContentTitle("My notification")
    .setContentText("Hello World!");

Intent resultIntent = new Intent(this, ResultActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(ResultActivity.class); 
stackBuilder.addNextIntent(resultIntent);

PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
                                    0, PendingIntent.FLAG_UPDATE_CURRENT );
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

mNotificationManager.notify(mId, mBuilder.build());