Android - 如何檢查我的應用程序是否在收到推送通知時打開？

Question

我需要最好的解決方案。當我收到推送通知時，我想知道我的應用程序是否打開，因爲如果我的應用程序在用戶onClick通知時打開，我想調用特定方法，但如果應用程序關閉，我想打開應用程序。

Answer 1

基本上你需要的是檢查你的一個活動是否在前臺。可能是你應該檢查這個How to determine if one of my activities is in the foreground

Answer 2

//Use this method to check your app is running or not 
public boolean isAppRunning(){ 
     String packageName="Your package name"; 
     ActivityManager activityManager = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE); 
     List<ActivityManager.RunningAppProcessInfo> procInfoslist = activityManager.getRunningAppProcesses(); 
     for(int i = 0; i < procInfoslist.size(); i++) 
     { 
      if(procInfoslist.get(i).processName.equals(packageName)) 
      { 
       return true; 
      } 
     } 
     return false; 
    } 

` 
//Use this method to check any activity is running or not 

public boolean isActivityRunning(Context ctx) { 
     ActivityManager activityManager = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE); 
     List<ActivityManager.RunningTaskInfo> tasks = activityManager.getRunningTasks(Integer.MAX_VALUE); 

     for (ActivityManager.RunningTaskInfo task : tasks) { 
      if (ctx.getPackageName().equalsIgnoreCase(task.baseActivity.getPackageName())) 
       return true; 
     } 

     return false; 
    }