用户单击Urban Airship通知时重新启动Android应用程序

时间:2013-02-13 08:33:54

标签: android notifications urbanairship.com

我有一个Android应用程序已成功设置为使用Urban Airship接收通知,但在处理PushManager.ACTION_NOTIFICATION_OPENED)广播时遇到问题。我的BroadcastReceiver正在工作,接收消息,并调用以下内容(来自示例代码):

Intent launch = new Intent(Intent.ACTION_MAIN);
launch.setClass(UAirship.shared().getApplicationContext(), Main.class);
launch.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
UAirship.shared().getApplicationContext().startActivity(launch);

这样可以正常运行并将主要活动带回前台,但应用程序不再运行的情况除外。如果我向手机发送通知,终止应用程序,然后打开通知,应用程序崩溃就会出现NullPointer异常:

Failed to load meta-data, NullPointer: null
Unable to takeOff automatically
FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start receiver com.urbanairship.CoreReceiver:         java.lang.NullPointerException
at android.app.ActivityThread.handleReceiver(ActivityThread.java:2236)
at android.app.ActivityThread.access$1500(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1271)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)

我无法弄清楚是什么原因引起的。有什么想法吗?

2 个答案:

答案 0 :(得分:3)

好的,想通了。

我正在实例化UrbanAirship并从Activity上下文注册IntentReceiver,而不是从Application上下文注册。

糟糕。

答案 1 :(得分:1)

我遇到了同样的问题。我通过将UAirship初始化放入应用程序的onCreate而非活动来解决它。

嗨Amit Jayaswal,请看以下示例:

公共类MyApplication扩展了Application {

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

    // Optionally, customize your config at runtime:
    //
    // AirshipConfigOptions options = new AirshipConfigOptions();
    // options.inProduction = false;
    // options.developmentAppKey = "Your Development App Key";
    // options.developmentAppSecret "Your Development App Secret";
    //
    // UAirship.takeOff(this, options);

    UAirship.takeOff(this, new UAirship.OnReadyCallback() {
        @Override
        public void onAirshipReady(UAirship airship) {
            // Perform any airship configurations here

            // Create a customized default notification factory
            DefaultNotificationFactory defaultNotificationFactory = new DefaultNotificationFactory(getApplicationContext());
            defaultNotificationFactory.setSmallIconId(R.drawable.ic_notification);
            //defaultNotificationFactory.setColor(NotificationCompat.COLOR_DEFAULT);

            // Set it
            airship.getPushManager().setNotificationFactory(defaultNotificationFactory);

            // Enable Push
            airship.getPushManager().setPushEnabled(true);
        }
    });
}

}