Execute function after 5 seconds in Android

Question

I am new in android development and now my launcher activity show only 5 seconds and after that I want to check the user is logged in or not function and perform the actions.

here is my code.

@Override protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);      exactPreferences = getSharedPreferences("ExactPreference",MODE_PRIVATE);     setContentView(R.layout.activity_landing_page);      session = exactPreferences.getString(Model.getSingleton().SHARED_SESSION_ID,null);     Log.i("Session Id",session);         displayData(); // I want to perform this function after 5 seconds. }   private void displayData() {     if(session.equals("")){         Intent loginIntent = new Intent(LandingPage.this,                 LoginActivity.class);         startActivity(loginIntent);         Log.i("User Logged In", "False");     }     else     {         Intent objIntent = new Intent(LandingPage.this,                 IndexPageActivity.class);         startActivity(objIntent);         Log.i("User Logged In", "True");     }  } 

Answer 1

You can use the Handler to add some delay.Call the method displayData() as below so that it will be executed after 5 seconds.

new Handler().postDelayed(new Runnable() {         @Override         public void run() {           displayData();         }     }, 5000); 

Note : Do not use the threads like Thread.sleep(5000); because it will block your UI and and makes it irresponsive.

Answer 2

Assign millisDelayTime variable with the milliseconds you desire to cause a delay. mActivity is an object of Activity for providing Application Context. In your case millisDelayTime should be initialized with 5000

mActivity.runOnUiThread(new Runnable() { @Override     public void run() {     final Handler handler = new Handler();     handler.postDelayed(new Runnable() {        @Override        public void run() {              //your code here        }     }, millisDelayTime);   } });