@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
// Layout the shutter button.
int shutterButtonWidth = mShutterButton.getMeasuredWidth();
int shutterButtonHeight = mShutterButton.getMeasuredHeight();
mCenterX = right - left - Util.dpToPixel(FULL_WHEEL_RADIUS);
mCenterY = (bottom - top) / 2;
mShutterButton.layout(
right - left - shutterButtonWidth,
mCenterY - shutterButtonHeight / 2,
right - left,
mCenterY + shutterButtonHeight - shutterButtonHeight / 2);
// Layout the control wheel.
mIndicatorControlWheel.layout(0, 0, right - left, bottom - top);
mZoomControlWheel.layout(0, 0, right - left, bottom - top);
}
