iOS--创建炫酷的渐变色界面

{

CAGradientLayer *_layer;

}

//创建渐变层

_layer =[CAGradientLayer layer];

_layer.frame=self.view.frame;

//设置渐变开始的坐标

_layer.startPoint=CGPointMake(0.0, 0.4);

//设置渐变结束的坐标

_layer.endPoint=CGPointMake(0.0, 1.0);

//将渐变层添加到视图层上

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

UIColor *color1 =[UIColor colorWithRed:0.427451 green:0.737255 blue:0.643137 alpha:1];

UIColor *color2 =[UIColor colorWithRed:0.572549 green:0.345098 blue:0.74902 alpha:1];

//设置渐变层的颜色数组

_layer.colors=@[(id)[color1 CGColor ],(id)[color2 CGColor]];