The best Color Picker Library is here..... You can set using RGB value & HexCode too use like a Photoshop Colors.
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You can set Default color when Load the RzcolorPickerview as setting the value of CURRENTCOLOR.. example :
RzColorPickerView *colorPicker = [[RzColorPickerView alloc] initWithFrame:self.view.bounds]; [colorPicker setCurrentColor:[UIColor redColor]]; [self.view addSubview:colorPicker];
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To retrieve a selected Color from RzColorPickerView You have to use "doneWithSelectedColor:" to use the color in your UIColor Object example :
RzColorPickerView *colorPicker = [[RzColorPickerView alloc] initWithFrame:self.view.bounds];
[self.view addSubview:colorPicker];
[colorPicker doneWithSelectedColor:^(UIColor * _Nonnull newColor)
{
UIColor *selectedColor = newColor;
[self.view setBackgroundColor:selectedColor];
}];