效果图

使用视频当做背景.gif

介绍

背景图使用视频循环播放而不是使用gif图片, 这里使用MPMoviePlayerController进行无缝循环

具体代码

#import "LTLoginViewController.h"

@interface LTLoginViewController ()

/** url */
@property (nonatomic, strong) NSURL *url;

/** 视频播放器 */
@property (nonatomic, strong) MPMoviePlayerController *player;

@end

@implementation LTLoginViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self setupVideoPlayer];
}

/**
 设置视频播放
 */
- (void)setupVideoPlayer
{
    // 创建url
    self.url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"qidong" ofType:@"mp4"]];
    // 创建播放器
    self.player = [[MPMoviePlayerController alloc] initWithContentURL:self.url];
    // 添加到根视图
    [self.view addSubview:self.player.view];
    // 应该自动播放
    self.player.shouldAutoplay = YES;
    // 播放控制 : 不控制
    [self.player setControlStyle:(MPMovieControlStyleNone)];
    // 循环播放
    self.player.repeatMode = MPMovieRepeatModeOne;
    // 大小
    [self.player.view setFrame:self.view.bounds];
    // 缩放模式, 宽度或高度最小的那个等于屏幕宽或高
    self.player.scalingMode = MPMovieScalingModeAspectFill;
    // 透明
    self.player.view.alpha = 0;
    [UIView animateWithDuration:3 animations:^{
        self.player.view.alpha = 1;
        [self.player prepareToPlay];
    }];
    // 设置登录View
    [self setupLoginView];
}

/**
 设置登录View
 */
- (void)setupLoginView
{
    //进入按钮
    UIButton *enterButton = [[UIButton alloc] init];
    enterButton.frame = CGRectMake(24, [UIScreen mainScreen].bounds.size.height - 32 - 80, [UIScreen mainScreen].bounds.size.width - 48, 48);
    enterButton.layer.borderWidth = 1;
    enterButton.layer.cornerRadius = 24;
    enterButton.layer.borderColor = [UIColor whiteColor].CGColor;
    [enterButton setTitle:@"进入应用" forState:UIControlStateNormal];
    enterButton.alpha = 0;
    [self.player.view addSubview:enterButton];
    [enterButton addTarget:self action:@selector(enterButtonClick:) forControlEvents:UIControlEventTouchUpInside];
    
    [UIView animateWithDuration:3.0 animations:^{
        enterButton.alpha = 1.0;
    }];
}

/**
 进入应用按钮点击事件
 */
- (void)enterButtonClick:(UIButton *)sender
{
    NSLog(@"进入应用处理事件");
}

@end