in XML make app:cpv_alphaChannelVisible="false" and in code on button click colorPickerView.setAlphaSliderVisible(true); it was not showing alpha slider becasue onSizeChanged(int w, int h, int oldw, int oldh) was not gettlng called after requestLayout();
so i have moved code from onSizeChanged(int w, int h, int oldw, int oldh) to onLayout(boolean changed, int left, int top, int right, int bottom).
Also created a simple getter method to check if Alpha slider is visible or not.
I have fixed issue with a scenario:
in XML make
app:cpv_alphaChannelVisible="false"and in code on button clickcolorPickerView.setAlphaSliderVisible(true);it was not showing alpha slider becasueonSizeChanged(int w, int h, int oldw, int oldh)was not gettlng called after requestLayout();so i have moved code from
onSizeChanged(int w, int h, int oldw, int oldh)toonLayout(boolean changed, int left, int top, int right, int bottom). Also created a simple getter method to check if Alpha slider is visible or not.