#pragma mark 運(yùn)動開始時執(zhí)行
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event;
#pragma mark 運(yùn)動結(jié)束后執(zhí)行
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event;
#pragma mark 運(yùn)動被意外取消時執(zhí)行
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event;

KCImageView.m
#import "KCImageView.h"
#define kImageCount 3
@implementation KCImageView
- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.image = [self getImage];
    }
    return self;
}
#pragma mark 設(shè)置控件可以成為第一響應(yīng)者
- (BOOL)canBecomeFirstResponder{
    return YES;
}
#pragma mark 運(yùn)動開始
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event{
    //這里只處理搖晃事件
    if (motion == UIEventSubtypeMotionShake) {
        self.image = [self getImage];
    }
}
#pragma mark 運(yùn)動結(jié)束
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event{
}
#pragma mark 隨機(jī)取得圖片
- (UIImage *)getImage{
    int index = arc4random() % kImageCount;
    NSString *imageName = [NSString stringWithFormat:@"avatar%i.png",index];
    UIImage *image = [UIImage imageNamed:imageName];
    return image;
}
@end
KCShakeViewController.m
#import "KCShakeViewController.h"
#import "KCImageView.h"
@interface KCShakeViewController (){
    KCImageView *_imageView;
}
@end
@implementation KCShakeViewController
- (void)viewDidLoad {
    [super viewDidLoad];
}
#pragma mark 視圖顯示時讓控件變成第一響應(yīng)者
- (void)viewDidAppear:(BOOL)animated{
    _imageView = [[KCImageView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame];
    _imageView.userInteractionEnabled = true;
    [self.view addSubview:_imageView];
    [_imageView becomeFirstResponder];
}
#pragma mark 視圖不顯示時注銷控件第一響應(yīng)者的身份
- (void)viewDidDisappear:(BOOL)animated{
    [_imageView resignFirstResponder];
}
@end

typedef NS_ENUM(NSInteger, UIEventSubtype) {
    // 不包含任何子事件類型
    UIEventSubtypeNone                              = 0,
    // 搖晃事件（從iOS3.0開始支持此事件）
    UIEventSubtypeMotionShake                       = 1,
    //遠(yuǎn)程控制子事件類型（從iOS4.0開始支持遠(yuǎn)程控制事件）
    //播放事件【操作：停止?fàn)顟B(tài)下，按耳機(jī)線控中間按鈕一下】
    UIEventSubtypeRemoteControlPlay                 = 100,
    //暫停事件
    UIEventSubtypeRemoteControlPause                = 101,
    //停止事件
    UIEventSubtypeRemoteControlStop                 = 102,
    //播放或暫停切換【操作：播放或暫停狀態(tài)下，按耳機(jī)線控中間按鈕一下】
    UIEventSubtypeRemoteControlTogglePlayPause      = 103,
    //下一曲【操作：按耳機(jī)線控中間按鈕兩下】
    UIEventSubtypeRemoteControlNextTrack            = 104,
    //上一曲【操作：按耳機(jī)線控中間按鈕三下】
    UIEventSubtypeRemoteControlPreviousTrack        = 105,
    //快退開始【操作：按耳機(jī)線控中間按鈕三下不要松開】
    UIEventSubtypeRemoteControlBeginSeekingBackward = 106,
    //快退停止【操作：按耳機(jī)線控中間按鈕三下到了快退的位置松開】
    UIEventSubtypeRemoteControlEndSeekingBackward   = 107,
    //快進(jìn)開始【操作：按耳機(jī)線控中間按鈕兩下不要松開】
    UIEventSubtypeRemoteControlBeginSeekingForward  = 108,
    //快進(jìn)停止【操作：按耳機(jī)線控中間按鈕兩下到了快進(jìn)的位置松開】
    UIEventSubtypeRemoteControlEndSeekingForward    = 109,
};

#import "ViewController.h"
@interface ViewController (){
    UIButton *_playButton;
    BOOL _isPlaying;
}
@end
@implementation ViewController     
- (void)viewDidLoad {
    [super viewDidLoad];
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    [self initLayout];
}
- (BOOL)canBecomeFirstResponder{
    return NO;
}
- (void)viewDidAppear:(BOOL)animated{
    [super viewDidAppear:animated];
    NSURL *url = [NSURL URLWithString:@"     _player = [[AVPlayer alloc] initWithURL:url];
}
#pragma mark 遠(yuǎn)程控制事件
- (void)remoteControlReceivedWithEvent:(UIEvent *)event{
    if(event.type == UIEventTypeRemoteControl){
        switch (event.subtype) {
            case UIEventSubtypeRemoteControlPlay:
                [_player play];
                _isPlaying = true;
                break;
            case UIEventSubtypeRemoteControlTogglePlayPause:
                [self btnClick:_playButton];
                break;
            case UIEventSubtypeRemoteControlNextTrack:
                NSLog(@"Next...");
                break;
            case UIEventSubtypeRemoteControlPreviousTrack:
                NSLog(@"Previous...");
                break;
            case UIEventSubtypeRemoteControlBeginSeekingForward:
                NSLog(@"Begin seek forward...");
                break;
            case UIEventSubtypeRemoteControlEndSeekingForward:
                NSLog(@"End seek forward...");
                break;
            case UIEventSubtypeRemoteControlBeginSeekingBackward:
                NSLog(@"Begin seek backward...");
                break;
            case UIEventSubtypeRemoteControlEndSeekingBackward:
                NSLog(@"End seek backward...");
                break;
            default:
                break;
        }
        [self changeUIState];
    }
}
#pragma mark 界面布局
- (void)initLayout{
    //專輯封面
    UIImage *image = [UIImage imageNamed:@"wxl.jpg"];
    CGRect *frame = [UIScreen mainScreen].applicationFrame;
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame];
    imageView.image = image;
    imageView.contentMode = UIViewContentModeScaleAspectFill;
    [self.view addSubview:imageView];
    //播放控制面板
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 480, 320, 88)];
    view.backgroundColor = [UIColor lightGrayColor];
    view.alpha = 0.9;
    [self.view addSubview:view];
    //添加播放按鈕
    _playButton = [UIButton buttonWithType:UIButtonTypeCustom];
    _playButton.bounds = CGRectMake(0, 0, 50, 50);
    CGFloat playBtnX = view.frame.size.width/2;
    CGFloat playBtnY = view.frame.size.height/2;
    _playButton.center = CGPointMake(playBtnX, playBtnY);
    [self changeUIState];
    [_playButton addTarget:self
                    action:@selector(btnClick:)
          forControlEvents:UIControlEventTouchUpInside];
    [view addSubview:_playButton];
}
#pragma mark 界面狀態(tài)
- (void)changeUIState{
    if(_isPlaying){
        UIImage *pauseImage = [UIImage imageNamed:@"playing_btn_pause_n.png"];
        UIImage *pauseImageH = [UIImage imageNamed:@"playing_btn_pause_h.png"];
        [_playButton setImage:pauseImage forState:UIControlStateNormal];
        [_playButton setImage:pauseImageH forState:UIControlStateHighlighted];
    }else{
        UIImage *playImage = [UIImage imageNamed:@"playing_btn_play_n.png"];
        UIImage *playImageH = [UIImage imageNamed:@"playing_btn_play_h.png"];
        [_playButton setImage:playImage forState:UIControlStateNormal];
        [_playButton setImage:playImageH forState:UIControlStateHighlighted];
    }
}
- (void)btnClick:(UIButton *)btn{
    if (_isPlaying) {
        [_player pause];
    }else{
        [_player play];
    }
    _isPlaying =! _isPlaying;
    [self changeUIState];
}
@end