SetIcon

By default you should use style.xml中的AppTheme主题（这个可以在AndroidManifest.xml as seen in). Assuming that is the case, then you can change the color of the drawer button by:

1. Enterstyle.xml;

2. Add an inheritance from Widget.AppCompat.DrawerArrowToggle的style，这里叫做"DrawerArrowStyle"。在里面加上你想要的颜色，这里比如@color/colorBlue;

3. Add a line named drawerArrowStyle to style "AppTheme".

In this way, style has the following two items:

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    ...
    <item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
</style>

<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
    <item name="color">@color/colorBlue</item>
</style>

Run it again and you will see the result.