Android Activity Lifecycle is controlled by 7 methods of android.app.Activity class. The android Activity is the subclass of ContextThemeWrapper class.
An activity is the single screen in android. It is like window or frame of Java.
By the help of activity, you can place all your UI components or widgets in a single screen.
The 7 lifecycle method of Activity describes how activity will behave at different states.
Android Activity Lifecycle methods
Let’s see the 7 lifecycle methods of android activity.
Android Activity Lifecycle Example
It provides the details about the invocation of life cycle methods of activity. In this example, we are displaying the content on the logcat.
package com.example.activitylifecycle; import android.os.Bundle; import android.app.Activity; import android.util.Log; import android.view.Menu; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Log.d("lifecycle","onCreate invoked"); } @Override protected void onStart() { super.onStart(); Log.d("lifecycle","onStart invoked"); } @Override protected void onResume() { super.onResume(); Log.d("lifecycle","onResume invoked"); } @Override protected void onPause() { super.onPause(); Log.d("lifecycle","onPause invoked"); } @Override protected void onStop() { super.onStop(); Log.d("lifecycle","onStop invoked"); } @Override protected void onRestart() { super.onRestart(); Log.d("lifecycle","onRestart invoked"); } @Override protected void onDestroy() { super.onDestroy(); Log.d("lifecycle","onDestroy invoked"); } }