如果使用推送服务关闭应用程序，应用程序崩溃：parse.com答案

【问题标题】：App crashes if app is closed using Push service: parse.com如果使用推送服务关闭应用程序，应用程序崩溃：parse.com
【发布时间】：2015-01-06 00:58:09
【问题描述】：

我将清单中的接收器替换为我的：

<receiver android:name="com.myparse.app.MyReceiver"
    android:exported="false">
  <intent-filter>
    <action android:name="com.parse.push.intent.RECEIVE" />
    <action android:name="com.parse.push.intent.DELETE" />
    <action android:name="com.parse.push.intent.OPEN" />
    </intent-filter>
</receiver>

这是我的接收者：

public class MyReceiver extends ParsePushBroadcastReceiver {

    @Override
    protected void onPushReceive(Context mContext, Intent intent) {
//      super.onPushReceive(arg0, arg1);

        if (intent.hasExtra("com.parse.Data")){
            String jsonString=intent.getExtras().getString("com.parse.Data");
            //-------------
    }

   public void onPushOpen(Context context, Intent intent) {

        //To track "App Opens"
        ParseAnalytics.trackAppOpenedInBackground(intent);

        //Here is data you sent
        Log.i("", intent.getExtras().getString( "com.parse.Data" ));

        Intent i = new Intent(context, MainActivity.class);
        i.putExtras(intent.getExtras());
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
    }
}

一切正常但是，如果我关闭应用程序，然后发送推送通知-> 应用程序崩溃并显示以下日志：

11-09 21:13:11.621: E/com.parse.PushService(23087): The Parse push service cannot start because Parse.initialize has not yet been called. If you call Parse.initialize from an Activity's onCreate, that call should instead be in the Application.onCreate. Be sure your Application class is registered in your AndroidManifest.xml with the android:name property of your <application> tag.
11-09 21:13:11.626: E/AndroidRuntime(23087): FATAL EXCEPTION: main
11-09 21:13:11.626: E/AndroidRuntime(23087): java.lang.RuntimeException: Unable to start service com.parse.PushService@4203adb0 with Intent { act=com.google.android.c2dm.intent.RECEIVE flg=0x10 pkg=com.myparse.app cmp=com.myparse.app/com.parse.PushService (has extras) }: java.lang.RuntimeException: applicationContext is null. You must call Parse.initialize(context, applicationId, clientKey) before using the Parse library.
11-09 21:13:11.626: E/AndroidRuntime(23087):    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2782)
11-09 21:13:11.626: E/AndroidRuntime(23087):    at dalvik.system.NativeStart.main(Native Method)
11-09 21:13:11.626: E/AndroidRuntime(23087): Caused by: java.lang.RuntimeException: applicationContext is null. You must call Parse.initialize(context, applicationId, clientKey) before using the Parse library.
11-09 21:13:11.626: E/AndroidRuntime(23087):    at com.parse.Parse.checkContext(Parse.java:606)

【问题讨论】：

标签： android parse-platform push-notification push

【解决方案1】：

我遇到了同样的问题，并通过添加解决了它 android:name=".MyApplication" 到 Android 清单中的应用程序标记，然后创建一个如下所示的新类：

public class MyApplication extends Application 
{
    @Override
    public void onCreate() { 
         Parse.initialize(getApplicationContext(), myAppId, myClientKey);
    }
}

以前我会将 Parse 初始化调用放在我的主 Activity 的 onCreate() 方法中，但正如您发布的错误消息所暗示的那样，Android 生命周期的微妙之处意味着您不能这样做。

【讨论】：