Add the Back key to the Android Action Bar

Add the Back key or other functions to the Action Bar to check the effect.

 

[Java]
/* Display the back key on the left of the App icon */
ActionBar actionBar = getActionBar ();
ActionBar. setDisplayHomeAsUpEnabled (true );

/* Display the back key on the left of the App icon */
ActionBar actionBar = getActionBar ();
ActionBar. setDisplayHomeAsUpEnabled (true); [java] view plaincopyprint?
@ Override
Public boolean onOptionsItemSelected (MenuItem item ){
Switch (item. getItemId ()){
Case android. R. id. home:
This. finish ();
Default:
Return super. onOptionsItemSelected (item );
}
}

@ Override
Public boolean onOptionsItemSelected (MenuItem item ){
Switch (item. getItemId ()){
Case android. R. id. home:
This. finish ();
Default:
Return super. onOptionsItemSelected (item );
}
}