毛玻璃效果UIVisualEffectView

感觉这种效果可以加在导航栏上，让UIVisualEffectView的透明度跟tabview的滑动绑定，这样实现一个动态效果，具体实现懒得写了，只有毛玻璃效果的对比图：

//

//  ViewController.m

//  effectView

//

//  Created by king on 16/11/2.

//  Copyright © 2016年 king. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    

    UIImageView *img = [[UIImageView alloc] initWithFrame:CGRectMake(25, 100, 150, 200)];

    

    [img setImage:[UIImage imageNamed:@"picture"]];

    

    [self.view addSubview:img];

    

    UIImageView *img1 = [[UIImageView alloc] initWithFrame:CGRectMake(200, 100, 150, 200)];

    

    [img1 setImage:[UIImage imageNamed:@"picture"]];

    

    [self.view addSubview:img1];

    

    UIVisualEffectView *visualEffectView = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];

    [visualEffectView setFrame:CGRectMake(200, 100, 150, 200)];

    visualEffectView.alpha = 0.5;

    [self.view addSubview:visualEffectView];

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end

 至于效果就是这个样子