Drawing gradient over image in ios

Question

How to create gradient colour look like following image programatically.

Answer 1

CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = self.view.bounds;


gradient.startPoint = CGPointMake(1.0, 1.0); //Dark From bottom
gradient.endPoint = CGPointMake(1.0, 0);


gradient.colors = [NSArray arrayWithObjects:
                   (id)[[UIColor blackColor] CGColor],
                   (id)[[UIColor clearColor] CGColor], nil];


[self.view.layer insertSublayer:gradient atIndex:0];