用户恢复应用程序后如何在活动中显示警报对话框

Question

手头的问题：

当应用程序被推到后台或屏幕超时时，应用程序本身将执行自动会话超时注销。因此，为了促进更好的用户交互，我在警报对话框中包含了一个通知用户该帐户由于会话超时而已注销并要求他们再次重新登录。会话 Timeout 方法运行正常且正常。

但是，当我将 AlertDialog 方法放在 onResume() 中时，我无法获得想要的结果。下面是已经完成的代码的sn-p。任何人都可以帮忙，以便在用户恢复活动时显示 AlertDialog。

//EDITED FOR SESSION LOGOUT
//WHEN APP IS IN IDLE OR WHEN USER DEVICE SCREEN IS OFF, WILL CALL ON THE METHOD TO LOGOUT USER

@Override
protected void onResume() {
    super.onResume();
    setloginButton();
    EnquiryActivity.PROPERTY = 0;
    //EDITED FOR SESSION LOGOUT
    //Get the Resume Time
    resumeDate = new Date();
    long diff = resumeDate.getTime() - curDate.getTime();
    long secInt = diff / 1000 % 60; //conversion of milliseconds into human readable form
    if (secInt > Inactivity_Timeout){// SET EXIT SCREEN INTERVAL LOGOUT
        IdleLogout();
        AlertDialog();
    }   
}

@Override
public void onUserInteraction() { 
    super.onUserInteraction();
    // TO LOG APP HAS EXITED AND IS PUSHED TO BACKGROUND PROCESS(25/08/2014) 
    .....
}

//Perform Check if User is still Login as an user
public void checkLogin(){
    //CONDITION TO CHECK IF USER IS LOGIN, IF TRUE, CALL METHOD 
 ....
}


 public void startUserInactivityDetectThread(){ 
    new Thread(new Runnable() {

    public void run() {
        // PROVIDING AN INFINITE LOOP WHEN FOLLOWING CONDITIONS ARE TRUE. 
         while(true) {
                  //Perform Thread to check on condition and run idlelogout
        }
       }
       }).start();
       }

public void IdleLogout(){
 // Method to perform logout and erase shared preference credential
}

// TO INFORM USER ON THE STATUS OF LOGOUT WHEN USER RESUMES THE APP
public void AlertDialog() {
    AlertDialog alertDialog = new AlertDialog.Builder(RootActivity.this).create();
    alertDialog.setTitle("SESSION LOGOUT NOTICE");
    alertDialog.setMessage("PLEASE LOGIN TO ACCESS YOUR PROFILE.");
    //SETTING OF OK BUTTON
    alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            Toast.makeText(getApplicationContext(), "You clicked on OK", Toast.LENGTH_SHORT).show();

            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setData(Uri.parse("market://details?id=com.og.ascendas.spacetobe"));
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }
    });alertDialog.show();// SHOW ALERT MESSAGE
}

Answer 1

试试这个家，我假设你的实施很好。因此，仅根据您的问题解决您的问题..lol 使用这种方式实现它，所以我们会是这样的（编辑从这里开始）

static Builder alertDialog(Activity act,final Intent yourintent){
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(act);
    alertDialog.setTitle("SESSION LOGOUT NOTICE");
    alertDialog.setMessage("PLEASE LOGIN TO ACCESS YOUR PROFILE.");
    //SETTING OF OK BUTTON
    alertDialog.setPossitiveButton("OK", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(getApplicationContext(), "You clicked on OK", Toast.LENGTH_SHORT).show();
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setData(Uri.parse("market://details?id=com.og.ascendas.spacetobe"));
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        act.startActivity(yourintent);//Return page to PROPERTYACTIVITY
      }
   });      
return alertDialog;
}

我将 startActivity 放置在 alertdialog 中，因此当用户单击确定登录时，它会将他带到登录屏幕，就像你想要的那样，然后让 onresume 执行它的 show();

 @Override
protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    setloginButton();
    EnquiryActivity.PROPERTY = 0;
    //EDITED FOR SESSION LOGOUT
    //Get the Resume Time
    resumeDate = new Date();
    long diff = resumeDate.getTime() - curDate.getTime();
    long secInt = diff / 1000 % 60; //conversion of milliseconds into human readable form
    if (secInt > Inactivity_Timeout){// SET EXIT SCREEN INTERVAL LOGOUT
         IdleLogout();
         RootActivity.alertDialog(RootActitvity.this,getCustomIntent(PropertyActivity.class)).create().show();
        }
}

或者放到IdleLogout()中

public void IdleLogout(){
   // Method to perform logout and erase shared preference credentials
   SharedPreferences pref = getSharedPreferences(getString(R.string.pref_current_user), MODE_PRIVATE);             
   SharedPreferences.Editor editor = pref.edit();       
   editor.clear();     // CLEAR ALL FILEDS
   editor.commit();    // COMMIT CHANGES 
   setloginButton();   // Change logout button to login       
   RootActivity.alertDialog(RootActitvity.this,getCustomIntent(PropertyActivity.class)).create().show();
}

抱歉，我在昏昏欲睡的状态下写了一些小错误。纠正小错误 如果你把它放在 idlelogout() 中，不要直接在 onresume 中调用它，只需调用你的 idlelogout ，这也不相关

editor.remove(getString(R.string.pref_username));   //REMOVE USERNAME FROM STRING
editor.remove(getString(R.string.pref_password));  //REMOVE PASSWROD FROM STRING

因为 clear() 这样做.. 并且还要注意删除 startActivity(getCustomIntent(PropertyActivity.class)); //将页面返回到PROPERTYACTIVITY。从您的空闲注销..好的.. 让我知道它是否好