IOS generates UIColor from color labels of various effects

IOS generates UIColor from various color labels

 

 

When you know the RGB value and Alpha transparency, use the native method of the following UIColor:

 

UIColor * color = [UIColor colorWithRed: 255.0/255.0 green: 108.0/255.0 blue: 96.0/255.0 alpha: 0.8];

 

When the color value of the annotation you get is as follows: # ff616a, use the following macro:

 

# Define UIColorFromRGBA (rgbValue, alphaValue) [UIColor colorWithRed :( (float) (rgbValue & 0xFF0000)> 16)/255.0 green :( (float) (rgbValue & 0x00FF00)> 8)/255.0 blue :( (float) (rgbValue & 0x0000FF)/255.0 alpha: alphaValue]

 

In fact, this macro has gone to Shanghai, and it is difficult to find a usable one.

Available after finishing.