OneSignal Android NotificationOpenedHandler - アクティビティを開始

Question

ParseからOneSignalに移行しようとしていますが、ユーザーがプッシュ通知をクリックした後に新しいアクティビティを開始する方法が固まっています。私のハンドラが動作している、ログにテキストが表示されている、問題は私のプッシュオープンハンドラ内からアプリケーションコンテキストへのアクセスを得る方法であるようだ。例のコードは曖昧ですが、最初に何かを実行しないとgetApplicationContext()が動作しません。 else。

OneSignalとは無関係に、私がやった1つの記事は、アプリケーションクラスへのアクセスを得るためにApplicationクラスを拡張することを提案しています。これは構文エラーを生成しませんでしたが、私のアプリケーションがクラッシュします。

コード：

package com.linkedresponder.onesignal; 

import android.app.Activity; 
import android.app.Application; 
import android.content.Context; 
import android.content.Intent; 
import android.util.Log; 
import android.widget.Toast; 

import com.onesignal.OSNotificationAction; 
import com.onesignal.OSNotificationOpenResult; 
import com.onesignal.OneSignal; 

import org.json.JSONObject; 

class NotificationOpenHandler extends Application implements OneSignal.NotificationOpenedHandler { 
    // This fires when a notification is opened by tapping on it. 
    private Context mContext; 
    @Override 
    public void onCreate() { 
     this.mContext = getApplicationContext(); 
    } 
    @Override 
    public void notificationOpened(OSNotificationOpenResult result) { 
     OSNotificationAction.ActionType actionType = result.action.type; 
     JSONObject data = result.notification.payload.additionalData; 
     String customKey; 

     if (data != null) { 
      customKey = data.optString("customkey", null); 
      if (customKey != null) { 
       Log.i("OneSignalExample", "customkey set with value: " + customKey); 
      } else { 
       Log.i("OneSignalExample", "No data"); 
      } 
     } 

     if (actionType == OSNotificationAction.ActionType.ActionTaken) 
      Log.i("OneSignalExample", "Button pressed with id: " + result.action.actionID); 

     Intent intent = new Intent(mContext, PushClicked.class); 
     intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK); 
     startActivity(intent); 
    } 
} 

エラー：

er.onesignal E/AndroidRuntime: FATAL EXCEPTION: main Process: com.linkedresponder.onesignal, PID: 5680 
    java.lang.RuntimeException: Unable to start receiver com.onesignal.NotificationOpenedReceiver: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference 
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3018) 
    at android.app.ActivityThread.-wrap18(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1544) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:154) 
    at android.app.ActivityThread.main(ActivityThread.java:6077) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
    Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference 
    at android.content.ComponentName.<init>(ComponentName.java:128) 
    at android.content.Intent.<init>(Intent.java:4868) 
    at com.linkedresponder.onesignal.NotificationOpenHandler.notificationOpened(NotificationOpenHandler.java:41) 
    at com.onesignal.OneSignal.fireNotificationOpenedHandler(OneSignal.java:1009) 
    at com.onesignal.OneSignal.runNotificationOpenedCallback(OneSignal.java:954) 
    at com.onesignal.OneSignal.handleNotificationOpen(OneSignal.java:1041) 
    at com.onesignal.NotificationOpenedProcessor.processIntent(NotificationOpenedProcessor.java:101) 
    at com.onesignal.NotificationOpenedProcessor.processFromActivity(NotificationOpenedProcessor.java:57) 
    at com.onesignal.NotificationOpenedReceiver.onReceive(NotificationOpenedReceiver.java:11) 
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3011) 
    at android.app.ActivityThread.-wrap18(ActivityThread.java)  
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1544)  
    at android.os.Handler.dispatchMessage(Handler.java:102)  
    at android.os.Looper.loop(Looper.java:154)  
    at android.app.ActivityThread.main(ActivityThread.java:6077)  
    at java.lang.reflect.Method.invoke(Native Method)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)  

Answer 1

この問題への短い答えは、あなたがOneSignal初期化し、同じクラス内でオープンプッシュ通知のためのハンドラを含めることです。

public class MainActivity extends AppCompatActivity { 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     // Init OneSignal 
     OneSignal.startInit(this).setNotificationOpenedHandler(new NotificationOpenHandler()).init(); 

     Toolbar mToolbar = (Toolbar) findViewById(R.id.app_bar); 
     setSupportActionBar(mToolbar); 
     getSupportActionBar().setDisplayUseLogoEnabled(true); 
     getSupportActionBar().setLogo(R.drawable.ic_launcher); 
     getSupportActionBar().setDisplayShowTitleEnabled(false); 
     if (savedInstanceState == null) { 
      getFragmentManager().beginTransaction() 
        .add(R.id.container, new RecordingsFragment()) 
        .commit(); 
     } 
    } 

    class NotificationOpenHandler implements OneSignal.NotificationOpenedHandler { 
     // This fires when a notification is opened by tapping on it. 
     @Override 
     public void notificationOpened(OSNotificationOpenResult result) { 
      OSNotificationAction.ActionType actionType = result.action.type; 
      JSONObject data = result.notification.payload.additionalData; 

      String stationName = data.optString("stationName"); 
      String timestamp = data.optString("timestamp"); 
      String filename = data.optString("filename"); 
      String url = getString(R.string.callResourceUrl) + filename; 

      Intent intent = new Intent(getApplicationContext(), CallActivity.class); 
      intent.putExtra("stationName", stationName); 
      intent.putExtra("time", timestamp); 
      intent.putExtra("url", url); 
//   intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK); 
      startActivity(intent); 
     } 
    } 
} 

Answer 2

私はそれをどのように動作させたのですか：

public class MyApplication extends Application { 
    @Override 
    public void onCreate() { 
     super.onCreate(); 
     OneSignal.startInit(this) 
       .setNotificationOpenedHandler(new MyNotificationOpenedHandler(this)) 
       .init(); 
    } 
} 

NotificationOpenedHandlerカスタムクラス

public class MyNotificationOpenedHandler implements OneSignal.NotificationOpenedHandler { 

    private Application application; 

    public MyNotificationOpenedHandler(Application application) { 
     this.application = application; 
    } 

    @Override 
    public void notificationOpened(OSNotificationOpenResult result) { 

     // Get custom datas from notification 
     JSONObject data = result.notification.payload.additionalData; 
     if (data != null) { 
      String myCustomData = data.optString("key", null); 
     } 

     // React to button pressed 
     OSNotificationAction.ActionType actionType = result.action.type; 
     if (actionType == OSNotificationAction.ActionType.ActionTaken) 
      Log.i("OneSignalExample", "Button pressed with id: " + result.action.actionID); 

     // Launch new activity using Application object 
     startApp(); 
    } 

    private void startApp() { 
     Intent intent = new Intent(application, MyActivity.class) 
       .setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK); 
     application.startActivity(intent); 
    } 
} 

は、マニフェストにこれを追加することを忘れないでください：

<application ...> 
    <meta-data android:name="com.onesignal.NotificationOpened.DEFAULT" android:value="DISABLE" /> 
</application>