无法从通知中打开活动

Posted 2023-02-24

【中文标题】无法从通知中打开活动

【英文标题】：unable to open an activity from notifications

【发布时间】：2020-04-28 22:53:50

【问题描述】：

我正在发出打开活动的通知，并在单击时发送附加信息，但我使用所有方式，但当我单击它时它总是打开我的启动器活动， 我的代码是这样的

public class AlarmNotificationReceiver extends BroadcastReceiver 


@Override
public void onReceive(Context context, Intent intent) 

    sendNotification(context);

     


public void sendNotification(Context context) 


    int NOTIFICATION_ID = 234;
    String CHANNEL_ID = "my_channel_01";

    Intent intent = new Intent(context, TestActivity.class);
    intent.putExtra("title", "Today,s Dish");
    intent.putExtra("getDetailShowId", 50);
    intent.setAction("MyIntent");
    intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent contentIntent = PendingIntent.getActivity(context, NOTIFICATION_ID, intent, PendingIntent.FLAG_UPDATE_CURRENT);


    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) 
        //    String CHANNEL_ID = "my_channel_01";
        CharSequence name = "Title";
        String Description = "Its new";
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
        mChannel.setDescription(Description);
        mChannel.enableLights(true);
        mChannel.setLightColor(Color.RED);
        mChannel.enableVibration(true);
        mChannel.setVibrationPattern(new long[]100, 200, 300, 400, 500, 400, 300, 200, 400);
        mChannel.setShowBadge(false);
        notificationManager.createNotificationChannel(mChannel);



    





    NotificationCompat.Builder builder = new NotificationCompat.Builder(context, CHANNEL_ID)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentTitle("Title")
            .setContentText("Its old")
            .setContentIntent(contentIntent)
            .setAutoCancel(true)
            ;

    Intent resultIntent = new Intent(context, MenuActivity.class);
    TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
    stackBuilder.addParentStack(MainActivity.class);
    stackBuilder.addNextIntent(resultIntent);
    PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    builder.setContentIntent(resultPendingIntent);
    notificationManager.notify(NOTIFICATION_ID, builder.build());

我没有使用奥利奥，所以算了吧，我得到了这样的额外功能，但是这段代码不起作用它总是打开我的启动活动

toolbartitle = getIntent().getStringExtra("title");
    detailShowUrl = getIntent().getStringExtra("getDetailShowId");

【参考方案1】：

TL;DR

创建通知渠道 创建通知 在通知中附加待处理的意图，您将在其中添加额外数据 点击通知后，pendingIntent 将启动一个活动 根据待处理的 Intent 额外数据处理已启动的 Activity 内部将发生的情况

执行上述步骤的一些代码/资源：

如何创建通知渠道：

Android O - Notification Channels and NotificationCompat

如何创建一个pendingIntent：

Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("data", json.toString());
intent.putExtra("has_extra_data", true);

PendingIntent pendingIntent = PendingIntent.getActivity(this, json.getInt("id") /* Request code */, intent, PendingIntent.FLAG_UPDATE_CURRENT);

如何在通知中插入pendingIntent并显示：

notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
                        .setSmallIcon(R.mipmap.ic_launcher)
                        .setContentTitle("title")
                        .setContentText("description")
                        .setAutoCancel(true)
                        .setSound(defaultSoundUri)
                        .setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

notificationManager.notify(id/* ID of notification */, notificationBuilder.build());

现在将它添加到 MainActivity 以处理通知的数据：

@Override
protected void onCreate(Bundle savedInstanceState) 
    if (getIntent().getExtras().getBoolean("has_extra_data"))
        String data = getIntent().getExtras().getString("data");
        // Do what you want ...
        // You may want to start a new activity or show something in UI
    

根据您的问题记录：

如果您想打开除 MainActivity 之外的另一个活动，您应该通过在您的 pendingIntent extras 中设置自定义变量并让 MainActivity 将您重定向到另一个 Activity 来实现。本质上，MainActivity 充当路由器！