方法一：

 self.isPlayOrPause=YES;

    UIView *spbg=[[UIViewalloc]initWithFrame:CGRectMake(10,10,self.contentView.frame.size.width-20,290)];

    spbg.backgroundColor=[UIColorblueColor];

    //播放按鈕

    UIButton *playBtn=[UIButtonbuttonWithType:UIButtonTypeCustom];

    playBtn.bounds=CGRectMake(0,0,60,60);

    playBtn.center=spbg.center;

    [playBtn setImage:[UIImageimageNamed:@"bf"]forState:UIControlStateNormal];

    self.palyBtn=playBtn;    [playBtn addTarget:self action:@selector(changeToplayOrPause) forControlEvents:UIControlEventTouchDown];   

    videoWnd_ = [[DHVideoWndalloc]initWithFrame:CGRectMake(10,10,self.contentView.frame.size.width-20,290)];

    [spbg addSubview:videoWnd_];//添加視頻播放

    [self.contentViewaddSubview:spbg];

    [self.contentView addSubview:playBtn];

-(void)changeToplayOrPause{

    self.isPlayOrPause=!self.isPlayOrPause;

    if(self.isPlayOrPause==NO){

    [selfonBtnPlay:nil];//播放

        self.palyBtn.alpha=0;

    }else{

        [selfonBtnPause:nil];//暫停

        self.palyBtn.alpha=1;

    }

    NSLog(@"-self.isPlayOrPause---%tu",self.isPlayOrPause);

}