如何替换android中的默认navdrawer图标？

I want to change the default DrawerLayout icon on the upper left side to my own image but I don't know why it does not work on load of app. The icon only changes when I have opened or closed the side menu. I also want to disable the animation, it is disabled after I changed the icon but that only happens after it is opened and closed. I don't know why this does not work on load of the activityI want to change the default DrawerLayout icon