Question

我有两个活动，A（登录）和B（DashBoard），我创建特定时间的通知，如果用户已经在活动B，那么点击通知什么都不应该发生，如果应用程序关闭或不打开，点击通知需要打开活动A.如何实现这一目标.TIA

我在braodcastreceiver中尝试了以下内容

   @Override
public void onReceive(Context context, Intent intent) {
    Log.e("NotificationReceiver","NotificationReceiver");
    if(ActivityB.instance!=null){

    }else{
        Intent i = new Intent();
        i.setClassName("com.test","com.test.ActivityA");
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
    }
}

但是当我的应用程序没有打开或关闭时，其他的都没有执行。

Answer 1

使用activityLifeCycleCallbacks

跟踪应用程序类中的活动

public class MyApplication extends Application implements my.package.ActivityLifecycleCallbacks{

@Override
public void onCreate() {
    super.onCreate(); 
    registerActivityLifecycleCallbacks(this);          
}

@Override
public void onActivityStopped(Activity activity) {
    Log.i("Tracking Activity Stopped", activity.getLocalClassName());

}

@Override
public void onActivityStarted(Activity activity) {
    Log.i("Tracking Activity Started", activity.getLocalClassName());

}

@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
    Log.i("Tracking Activity SaveInstanceState", activity.getLocalClassName());
}

@Override
public void onActivityResumed(Activity activity) {
    Log.i("Tracking Activity Resumed", activity.getLocalClassName());
}

@Override
public void onActivityPaused(Activity activity) {
    Log.i("Tracking Activity Paused", activity.getLocalClassName());
}

@Override
public void onActivityDestroyed(Activity activity) {
    Log.i("Tracking Activity Destroyed", activity.getLocalClassName());
}

@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
    Log.i("Tracking Activity Created", activity.getLocalClassName());
}
}

接下来收到广播中的通知onClick，检查您的应用程序类是否打开了activityB并做出决定

Android On基于条件点击通知打开活动

1 个答案: