Question

我创建了一个从PushBots接收推送通知的应用程序。

我已成功接收推送通知，但我想将推送数据存储在SharedPreferences中，并显示另一个包含RecyclerView的活动。

我知道内容提供商是一种更好的方法，但我现在想坚持使用SharedPreferences。

这是我的自定义广播接收器

public class customHandler extends BroadcastReceiver
{
    private static final String TAG = "customHandler";
    @Override
    public void onReceive(Context context, Intent intent)
    {
        String action = intent.getAction();
        Log.d(TAG, "action=" + action);
        // Handle Push Message when opened
        if (action.equals(PBConstants.EVENT_MSG_OPEN)) {
            //Check for Pushbots Instance
            Pushbots pushInstance = Pushbots.sharedInstance();
            if(!pushInstance.isInitialized()){
                Log.d("Initializing Pushbots.");
                Pushbots.sharedInstance().init(context.getApplicationContext());
            }

            //Clear Notification array
            if(PBNotificationIntent.notificationsArray != null){
                PBNotificationIntent.notificationsArray = null;
            }

            HashMap<?, ?> PushdataOpen = (HashMap<?, ?>) intent.getExtras().get(PBConstants.EVENT_MSG_OPEN);
            Log.w(TAG, "User clicked notification with Message: " + PushdataOpen.get("message"));

            //Report Opened Push Notification to Pushbots
            if(Pushbots.sharedInstance().isAnalyticsEnabled()){
                Pushbots.sharedInstance().reportPushOpened( (String) PushdataOpen.get("PUSHANALYTICS"));
            }

            //Start Main Activity On CLicking Notification
            String packageName = context.getPackageName();
            Intent resultIntent = new Intent(context.getPackageManager().getLaunchIntentForPackage(packageName));
            resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK| Intent.FLAG_ACTIVITY_CLEAR_TASK);

            resultIntent.putExtras(intent.getBundleExtra("pushData"));
            Pushbots.sharedInstance().startActivity(resultIntent);

            // Handle Push Message when received
        }else if(action.equals(PBConstants.EVENT_MSG_RECEIVE)){
            HashMap<?, ?> PushdataOpen = (HashMap<?, ?>) intent.getExtras().get(PBConstants.EVENT_MSG_RECEIVE);
            Log.w(TAG, "User Received notification with Message: " + PushdataOpen.get("message"));
        }
    }
}

Answer 1

创建一个自定义PushData类，并使用Gson库将数据保存为字符串。

这是一个干净的example

Answer 2

试一试。

public void addNotification(String notification) {
    // get old notifications
    String oldNotifications = getNotifications();
    if (oldNotifications != null) {
        oldNotifications += "|" + notification;
    } else {
        oldNotifications = notification;
    }
    editor.putString(KEY_NOTIFICATIONS, oldNotifications);
    editor.commit();
}

public String getNotifications() {
    return pref.getString(KEY_NOTIFICATIONS, null);
}

得到它

String oldNotification = AppController.getInstance().getPrefManager().getNotifications();
List<String> messages = Arrays.asList(oldNotification.split("\\|"));

Answer 3

将字符串放入SharedPreferences：

SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString(key, value);
editor.commit();

获取片段中的共享首选项：

SharedPreferences prefs = getActivity().getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
String name = prefs.getString(key, "default value");

Answer 4

1。在onReceive方法中初始化共享首选项变量，如下所示

 SharedPreferences prf = context.getSharedPreferences("YOUR_PREFERENCE_NAME", Context.MODE_PRIVATE);
 SharedPreferences.Editor editor = prf.edit();

2。收到时将推送消息保存到共享首选项

          ................
          ................

     // Handle Push Message when received
            }else if(action.equals(PBConstants.EVENT_MSG_RECEIVE))
               {
                HashMap<?, ?> PushdataOpen = (HashMap<?, ?>) intent.getExtras().get(PBConstants.EVENT_MSG_RECEIVE);
                Log.w(TAG, "User Received notification with Message: " + PushdataOpen.get("message"));

                String message=(String) PushdataOpen.get("message");
                editor.putString("push_message", message);
                editor.commit();
            }

3. 从共享首选项中获取已保存的推送消息以进行显示，

SharedPreferences prf = context.getSharedPreferences("YOUR_PREFERENCE_NAME", Context.MODE_PRIVATE);
String message=prf.getString("push_message", "");

如何在SharedPreferences中保存推送通知数据并在RecyclerView

4 个答案: