Wednesday, 16 August 2017

Android Activity Lifecycle


Let's see the 7 lifecycle methods of android activity.
Method
Description
onCreate
called when activity is first created.
onStart
called when activity is becoming visible to the user.
onResume
called when activity will start interacting with the user.
onPause
called when activity is not visible to the user.
onStop
called when activity is no longer visible to the user.
onRestart
called after your activity is stopped, prior to start.
onDestroy
called before the activity is destroyed.

package csdevbin.lifecycle;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
   
protected void onCreate(Bundle savedInstanceState) {
       
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Toast.makeText(getApplicationContext(),
"Created ", Toast.LENGTH_SHORT).show();


    }

    @Override
   
protected void onResume() {
       
super.onResume();
        Toast.makeText(getApplicationContext(),
"Resumed ", Toast.LENGTH_SHORT).show();
    }

    @Override
   
protected void onPause() {
       
super.onPause();
        Toast.makeText(getApplicationContext(),
"Paused ", Toast.LENGTH_SHORT).show();
    }

    @Override
   
protected void onRestart() {
       
super.onRestart();
        Toast.makeText(getApplicationContext(),
"Restart ", Toast.LENGTH_SHORT).show();
    }

    @Override
   
protected void onStop() {
       
super.onStop();
        Toast.makeText(getApplicationContext(),
"Stoped ", Toast.LENGTH_SHORT).show();
    }

    @Override
   
protected void onStart() {
       
super.onStart();
        Toast.makeText(getApplicationContext(),
"Start ", Toast.LENGTH_SHORT).show();
    }

    @Override
   
protected void onDestroy() {
       
super.onDestroy();
        Toast.makeText(getApplicationContext(),
"Destroyed ", Toast.LENGTH_SHORT).show();
    }

}



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