PendingIntent 更新 sqlite

Question

我对 Android GCM 和通知还很陌生。现在，我被困在如何当用户在通知中点击按钮时更新 sqlite

场景是

1. 我的服务器会将 gcm 发送到 GCM 服务器
2. GCM 服务器向设备发送消息
3. IntentService 收到消息后，在本地 sqlite 中创建新的消息记录。
4. 在通知栏中使用 2 个按钮“启动应用”、“标记为已读”和“关闭”创建新的通知视图

“启动应用”按钮很简单，每个教程都会展示如何使用 PendingIntent 启动新活动。但是对于“标记为已读”和“解雇”我不知道如何实现它（而且英语不是我的母语，我无法想出关键字来搜索答案......所以，抱歉，如果之前有人问过这个问题）

• 对于“标记为已读”按钮，我希望它调用服务或应用程序子类来更新 sqlite，然后取消通知而无需启动活动
• 对于“关闭”按钮，我希望它只是取消通知

这是有的代码

@Override
protected void onHandleIntent(Intent intent) 
    Notification.Builder builder = new Notification.Builder(this);
    builder.setContentTitle("Title of the notification");
    builder.setSmallIcon(R.drawable.notification_icon);
    builder.setStyle(new Notification.BigTextStyle().bigText("The message that I want to show"));
    builder.setAutoCancel(true);

    Intent i1 = new Intent(this, MainActivity.class);
    PendingIntent pi1 = PendingIntent.getActivity(this, UNIQUE_ID, i1, PendingIntent.FLAG_ONE_SHOT);

    PendingIntent pi2 = null; // To mark as read, I don't how to write it yet.
    PendingIntent pi3 = null; // To dismiss, I don't how to write it yet.

    builder.addActon(R.drawable.launch_app_icon, "Launch app", pi1);
    builder.addActon(R.drawable.mark_as_read_icon, "Mark as read", pi2);
    builder.addActon(R.drawable.dismiss_icon, "Dismiss", pi3);

    Notification notification;
    if (DeviceHelper.getAndroidSDK() < 16) {
        notification = builder.getNotification();
    } else {
        notification = builder.build();
    }

    NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(UNIQUE_ID, notification);        
}

我也试过把pi2设置成这样

Intent i2 = new Intent(MyApp.USER_DISMISS_NOTIFICATION);
PendingIntent pi2 = PendingIntent.getBroadcast(this, UNIQUE_ID, i2, PendingIntent.FLAG_ON_SHOT);

然后在Application子类中收听本地广播

public final class MyApp extends Application {
    public static final USER_DISMISS_NOTIFICATION = "UserDismissNotification";

    public void onCreate() {
        super.onCreate();

        LocalBroadcastManager.getInstance(this).registerReceiver(new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                // Local broadcast received, update database
            }
        }, new IntentFilter(USER_DISMISS_NOTIFICATION));
    }
}

但是 BroadcastReceiver 的 onReceive 永远不会被调用。

欢迎提出建议，谢谢！

Answer 1

我让它如下工作

A.创建广播接收器

public class NotificationReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
      Log.i("Dev", "Received");
    }
}

B.注册接收到应用程序对象**

<application
    android:name="com.example.app"
    android:icon="@drawable/ic_launcher"
    android:label="@string/application_name"
    android:theme="@android:style/Theme.Holo.NoActionBar"
    android:hardwareAccelerated="true" >

    <activity
        android:name="com.example.app.MainActivity" />

    <receiver android:name="com.example.NotificationReceiver" /> 
</application>

C.如下创建待处理意图并将其添加到通知中

Intent i = new Intent(this, NotificationReceiver.class);
PendingIntent pi = PendingIntent.getActivity(this, UNIQUE_ID, i, PendingIntent.FLAG_ONE_SHOT);

notification.addAction(R.drawable.button_icon, "Do something", pi);

现在，当用户点击按钮时，NotifiationReceiver 的 onReceive 将被调用，然后我可以更新数据库、启动活动或基于意图包的参数。

希望有帮助