material-sheet-fab/src/main/java/com/gordonwong/materialsheetfab/animations/MaterialSheetAnimation.java
public void morphIntoFab(View fab, long hideSheetDuration, long hideSheetColorDuration,
			AnimationListener listener) {
		revealSheetWithFab(fab, getSheetRevealRadius(), getFabRevealRadius(fab), hideSheetDuration,
				sheetColor, fabColor, hideSheetColorDuration, listener);
	}
public void morphIntoFab(View fab, long hideSheetDuration, long hideSheetColorDuration,
			AnimationListener listener) {
		revealSheetWithFab(fab, getSheetRevealRadius(), getFabRevealRadius(fab), hideSheetDuration,
				sheetColor, fabColor, hideSheetColorDuration, listener);
	}
Hides the sheet by morphing the sheet into the FAB.

@param fab Floating action button
@param hideSheetDuration Duration of the sheet animation in milliseconds. Use 0 for no
animation.
@param hideSheetColorDuration Duration of the color animation in milliseconds. Use 0 for no
animation.
@param listener Listener for animation events.