2016-02-28

iOS开发使用AVPlayer、MoviePlayer播放本地、网络视频

Github下载地址: https://github.com/ChinaFishNews/VideoPlay.git

Demo中使用的ALMoviePlayerController是一个框架，继承了系统的MPMoviePlayerController，做了一些扩展和封装。

代码我就不过多解读了，相对是比较清晰的，仅是为了实现播放功能，虽然很简陋且还有一些问题。

其中在使用AVPlayer播放视频的时候滑动进度条稍微有些不灵敏，之前在做项目的时候因为是使用Swift语言实现的，所以功能没法直接拿出来，就用OC也勉强实现了这个功能。项目中的解决方法是通过在进度条上画了热点，判断当前点击的点或滑动停止的点占总长度的百分比，从而定位到正确的播放位置。代码如下:

画出热点

func drawHotField()
{
    let width:CGFloat = self.view.bounds.size.width
    let height:CGFloat = self.view.bounds.size.height

    self.buttonMaintain = CGPathCreateMutable()
    
    if self.whetherPortrate == true
    {
        CGPathMoveToPoint(buttonMaintain,nil, 38, height-60)
        CGPathAddLineToPoint(buttonMaintain, nil, width-170,  height-60)
        CGPathAddLineToPoint(buttonMaintain, nil, width-170,  height)
        CGPathAddLineToPoint(buttonMaintain, nil, 38, height)
        CGPathCloseSubpath(self.buttonMaintain)
    }else
    {
        CGPathMoveToPoint(buttonMaintain,nil, 60, 65)
        CGPathAddLineToPoint(buttonMaintain, nil, 60,  height-150)
        CGPathAddLineToPoint(buttonMaintain, nil, 0,  height-150)
        CGPathAddLineToPoint(buttonMaintain, nil, 0,65 )
        CGPathCloseSubpath(self.buttonMaintain)
    }
    Logger.info("pathPoint:  \(self.buttonMaintain)")
}

点击

func controlViewClicked(tapGesture:UITapGestureRecognizer)
    {
        self.drawHotField()
        Logger.info("tap:---------------")
        let tapPoint:CGPoint = tapGesture.locationInView(self.view)

        if CGPathContainsPoint(self.buttonMaintain,nil,tapPoint,false) == true
        {
             var currentX = tapPoint.x
             var percent = (currentX-38)/self.progessSlider!.frame.size.width
            
            if self.whetherPortrate != true
            {
                currentX = tapPoint.y
                percent = (currentX-65)/self.progessSlider!.frame.size.width
            }

            let duration: CMTime = self.player!.currentItem!.duration
            var currentSecond: Float64 = CMTimeGetSeconds(duration)
            currentSecond = currentSecond * Float64(percent)
            self.progessSlider?.value = Float( currentSecond / CMTimeGetSeconds(self.player!.currentItem!.duration))
            self.player?.currentItem!.seekToTime(CMTimeMakeWithSeconds(Float64(Float(CMTimeGetSeconds(duration)) * self.progessSlider!.value), Int32(CMTimeGetSeconds(duration))))
            self.progressLabel?.text = self.getCurrentTime(currentSecond)
            
            self.judgeWhetherEnd()
        }
    }

滑动

func controlViewPaned(panGesture:UIPanGestureRecognizer)
    {
        self.drawHotField()
        Logger.info("pan:---------------")
        let tapPoint:CGPoint = panGesture.locationInView(self.view)
        
        if panGesture.state == UIGestureRecognizerState.Began || panGesture.state == UIGestureRecognizerState.Changed
        {
            if CGPathContainsPoint(self.buttonMaintain,nil,tapPoint,false) == true
            {
                var currentX = tapPoint.x
                var percent = (currentX-38)/self.progessSlider!.frame.size.width
                
                if self.whetherPortrate != true
                {
                    currentX = tapPoint.y
                    percent = (currentX-65)/self.progessSlider!.frame.size.width
                }

                let duration: CMTime = self.player!.currentItem!.duration
                var currentSecond: Float64 = CMTimeGetSeconds(duration)
                currentSecond = currentSecond * Float64(percent)
                self.progessSlider?.value = Float( currentSecond / CMTimeGetSeconds(self.player!.currentItem!.duration))
                self.player?.currentItem!.seekToTime(CMTimeMakeWithSeconds(Float64(Float(CMTimeGetSeconds(duration)) * self.progessSlider!.value), Int32(CMTimeGetSeconds(duration))))
                self.progressLabel?.text = self.getCurrentTime(currentSecond)
                
                self.judgeWhetherEnd()
            }
        }s
    }

如有任何疑问或问题请联系我:fishnewsdream@gmail.com,欢迎交流，共同提高！

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