Add Icon to the left of the title in the action bar in android

Question

I want to add a clickable icon/button to the left of the title in the action bar . How to do it? Following is the code with which I have added search and setting icon to the act

Answer 1

As this is updated era of Android, You must go for Toolbar so that you can do any kind of customization with the help of xml. Instead of using menu i would suggest to use toolbar

And through code you can handle event