java - 如何获取通知 Intent 数据

Question

我想在某个事件中显示通知，工作正常，我也登陆了我想要的 Activity ，但问题是， Intent 数据为空，请在此处，这是代码

    Intent resultIntent = new Intent(context, MovieDetailActivity.class);
        resultIntent.putExtra(Constants.MOVIE_ID, cursor.getString(
                cursor.getColumnIndexOrThrow(DatabaseHelper.ID)));
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addNextIntentWithParentStack(resultIntent);
        PendingIntent resultPendingIntent =
                stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(R.drawable.ic_download)
                .setContentIntent(resultPendingIntent)
                .setContentTitle(cursor.getString(
                        cursor.getColumnIndexOrThrow(DatabaseHelper.NAME)))
                .setAutoCancel(true)
                .setContentText(cursor.getString(
                        cursor.getColumnIndexOrThrow(DatabaseHelper.REALEASE_DATE)));
        NotificationManager notificationManager = (NotificationManager)
                context.getSystemService(context.NOTIFICATION_SERVICE);

        notificationManager.notify(1, builder.build()
        );

我在这一行中使用 Intent 发送一些数据。

resultIntent.putExtra(Constants.MOVIE_ID, cursor.getString(
                cursor.getColumnIndexOrThrow(DatabaseHelper.ID)));

我在这里接收数据，但它为空。

Intent receivedIntent = getIntent();
    mMovieId = receivedIntent.getIntExtra(Constants.MOVIE_ID, -1);

请帮忙，我花了一整天的时间。

Answer 1

你传入intent String，这样你就无法从intent中获取Integer，这就是你得到null的原因。

所以改变这一行:

mMovieId = receivedIntent.getIntExtra(Constants.MOVIE_ID, -1);

到

 mMovieId = receivedIntent.getStringExtra(Constants.MOVIE_ID);  
// and simply parse string to integer  
       int id = Integer.parseInt(mMovieId);