ios中图层的用法（1）

uiview画圆角

- (void)layerMyView {
    // 圆角
    self.myview.layer.cornerRadius = 10;
    // 边框
    self.myview.layer.borderWidth = 5;
    self.myview.layer.borderColor = [UIColor redColor].CGColor;
    // 阴影
    self.myview.layer.shadowOffset = CGSizeMake(-10, 10);
    self.myview.layer.shadowColor = [UIColor blueColor].CGColor;
    self.myview.layer.shadowOpacity = 0.5;
}

uiImageview画圆角

    // 圆角
//    self.imageView.layer.cornerRadius = 30;
//    // 让内部的所有子层都跟随最外面的边界(这个属性为YES，不能有阴影)
//    self.imageView.layer.masksToBounds = YES;
//    // 边框
//    self.imageView.layer.borderWidth = 5;
//    self.imageView.layer.borderColor = [UIColor blueColor].CGColor;
//    // 阴影
//    self.imageView.layer.shadowOffset = CGSizeMake(-10, 10);
//    self.imageView.layer.shadowColor = [UIColor redColor].CGColor;
//    self.imageView.layer.shadowOpacity = 0.5;

动画  

// 形变
    //self.imageView.layer.transform = CATransform3DMakeScale(0.5, 0.5, 0);
    
    //self.imageView.layer.transform = CATransform3DMakeRotation(M_PI_4, 1, 1, 0);
    
    
    //[self.imageView.layer setValue:[NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI_4, 1, 1, 0)] forKeyPath:@"transform"];  
    
    // 搜索CATransform3D
    [self.imageView.layer setValue:@0.7 forKeyPath:@"transform.scale.x"];