Android changing Floating Action Button color

To change the color of a Floating Action Button (FAB) in Android, you can use the setBackgroundTintList() method and pass it a color state list. A color state list is a set of colors that defines the colors of the FAB for different states such as enabled, pressed, and disabled.

Here is an example of how to change the color of a FAB in Android:

FloatingActionButton fab = findViewById(R.id.fab);

// create a color state list for the FAB
ColorStateList colorStateList = new ColorStateList(
        new int[][]{
                new int[]{-android.R.attr.state_enabled}, // disabled
                new int[]{android.R.attr.state_pressed}  // pressed
        },
        new int[]{
                Color.GRAY,  // disabled
                Color.BLUE   // pressed
        }
);

// set the background color of the FAB
fab.setBackgroundTintList(colorStateList);

In the example above, the color state list defines two colors for the FAB: gray for the disabled state and blue for the pressed state. When the FAB is enabled and not pressed, it will use the default color.

I hope this helps. Let me know if you have any questions.