android - 通过单击通知确定应用程序是否已启动的方法

Question

有没有办法通过点击通知或正常启动来跟踪确定一个 android 应用程序是否已启动？

Answer 1

在定义意图时，您在通知中添加一些布尔标志作为额外的。然后在主要活动中开始检查意图是否包含该额外内容。

Answer 2

您可以在 Intent 中添加一个额外的内容，用于为通知创建 PendingIntent。

来自官方指南：

// Instantiate a Builder object.
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
// Creates an Intent for the Activity
Intent notifyIntent =
        new Intent(new ComponentName(this, ResultActivity.class));
// Sets the Activity to start in a new, empty task
notifyIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);
// Creates the PendingIntent
PendingIntent notifyPendingIntent =
        PendingIntent.getActivity(
        this,
        0,
        notifyIntent
        PendingIntent.FLAG_UPDATE_CURRENT
);

// Puts the PendingIntent into the notification builder
builder.setContentIntent(notifyPendingIntent);
// Notifications are issued by sending them to the
// NotificationManager system service.
NotificationManager mNotificationManager =
    (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Builds an anonymous Notification object from the builder, and
// passes it to the NotificationManager
mNotificationManager.notify(id, builder.build());

只需添加notifyIntent.putExtra("fromNotification", true);