单击时通知不执行任何操作

Question

所以我想创建一个通知，当点击它时，它会打开我的 MainActivity 并根据我在 intent 中添加的额外内容做一些事情。

现在，通知工作正常，但是一旦我点击它，就没有任何反应。我搜索了一下并对我的代码做了一些修改：

我已将 android:launchMode="singleTop" 添加到清单中的 activity。

我已将要在我的 MainActivity 中执行的代码放在 onNewIntent 方法中：

@Override
protected void onNewIntent(Intent intent){
    System.out.println("Entering onNewIntent!!!!!!!");

    if(getIntent().getExtras() != null) {
        url = getIntent().getExtras().getString("url");
        System.out.println("URL in Main Activity : " + url);
        if (url != null && url != "") {
            saveFile(url);
            dezipFile();
        }
    }
}

但没有任何变化，我放了一些 System.out 看它是否到达了 onNewIntent 的开头...但是控制台上没有显示任何内容。

这是我创建通知的代码：

   private void createNotification () {

    Intent downloadIntent = new Intent(getApplicationContext(), MainActivity.class);
    downloadIntent.putExtra("url", url);
    downloadIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

    PendingIntent downloadPendingIntent = PendingIntent.getService(getApplicationContext(), 0, downloadIntent, 0);

    NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext(), "Notif")
            .setSmallIcon(R.drawable.icon_notif)
            .setContentTitle(getApplicationContext().getString(R.string.notif_title))
            .setContentText(getApplicationContext().getString(R.string.notif_content))
            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
            .setContentIntent(downloadPendingIntent)
            .setAutoCancel(true);


    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel channel = new NotificationChannel("notification_download", "Dowload BD infos", NotificationManager.IMPORTANCE_DEFAULT);
        NotificationManager manager = (NotificationManager) getApplicationContext().getSystemService(NOTIFICATION_SERVICE);
        manager.createNotificationChannel(channel);
        builder.setChannelId("notification_download");
    }

    NotificationManagerCompat notification = NotificationManagerCompat.from(getApplicationContext());
    notification.notify(1, builder.build());
}

如果有人知道我做错了什么，将不胜感激！

Answer 1

添加这个：

 NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext(), "Notif")
        .setSmallIcon(R.drawable.icon_notif)
        .setContentTitle(getApplicationContext().getString(R.string.notif_title))
        .setContentText(getApplicationContext().getString(R.string.notif_content))
        .setPriority(NotificationCompat.PRIORITY_DEFAULT)
        .setContentIntent(downloadPendingIntent)
        .setAutoCancel(true);


 Intent mIntent = new Intent(context, YourActivity.class);
    mIntent.setFlags(Intent.FLAG_ACTIVITY_TASK_ON_HOME);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
    stackBuilder.addNextIntent(mIntent);
    PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
            0,
            PendingIntent.FLAG_UPDATE_CURRENT
    );
    builder.setContentIntent(resultPendingIntent);

Answer 2

您可以设置 activity 在用户点击通知时启动，如下所示：

Intent resultIntent = new Intent(this, targetActivityClass);
Intent backIntent = new Intent(this, backActivityClass);
Intent[] intentArray = new Intent[]{backIntent, resultIntent};

PendingIntent resultPendingIntent = PendingIntent.getActivities(this, 0, intentArray,
                PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId);    
builder.setContentIntent(resultPendingIntent);

此代码还设置了 activity 当用户点击通知后点击后退按钮时启动。

单击时通知不执行任何操作

Notification do nothing when clicked

notifications

android

android-intent