Android back button java code example
Example 1: android java back button closeapp
public void onBackPressed(){
Intent a = new Intent(Intent.ACTION_MAIN);
a.addCategory(Intent.CATEGORY_HOME);
a.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(a);
}
Example 2: back button android studio
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".MainActivity" />