用戶恢復應用程序后如何在活動中顯示警報對話框

Question

手頭的問題：

當應用程序推到后台或屏幕超時時，應用程序本身將執行自動會話超時注銷。 因此，為了促進更好的用戶交互，我在“警報”對話框中添加了通知用戶該帳戶由於會話超時而被注銷，並要求他們再次重新登錄。 會話超時方法正常正常運行。

但是，將AlertDialog方法放在onResume（）中時，無法獲得所需的結果。 以下是已完成的代碼片段。 任何人都可以幫忙，以便用戶恢復活動時可以顯示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

試試這個家，我假設你的實現是好的。 因此，僅解決您的問題即可..大聲笑以這種方式實施，這樣我們會像這樣（從這里開始整理）

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;
}

我將startActivity放置在alert對話框中，因此當用戶單擊“確定”登錄時，它將帶他進入登錄屏幕，如您所願，然后讓onresume進行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();
        }
}

或將其放在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();
}

對不起，我從昏昏欲睡的狀態寫了些小錯誤。如果將其放在idlelogout（）中，請更正一些小錯誤，不要直接在onresume上調用它，只需調用您的idlelogout，這也就不相關了

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

因為clear（）可以做到這一點..並且還請注意刪除startActivity（getCustomIntent（PropertyActivity.class））; //返回頁面到PROPERTYACTIVITY。 從您的idlelogout..ok ..讓我知道它是否好