在播放之前将视频置于暂停状态 [英] Putting a video to pause state before playing

问题描述

我正在使用MVMoviePlayer在应用中播放视频。现在，点击播放按钮后会出现黑屏，视频开始播放。但是，从用户端的角度来看，黑屏是一些代价。所以，我想从暂停状态开始播放视频。
为了做到这一点，我想在播放之前将播放器置于暂停状态..

I am using MVMoviePlayer to play videos in the app. Right now, a black screen comes after taping the play button and the video starts playing. But, the black screen is casing some discofort from the user end point of view. So, i want to start the video from a paused state. In order to do this, i thought of putting the player to paused state before playing it..

有没有办法做到这一点？

Is there a way to do this???

推荐答案

您可以隐藏 MPMoviePlayer ，直到恼人的黑色闪烁消失。

You can hide your MPMoviePlayer until that annoying black flicker is gone.

为确保黑色闪烁消失，您可以检查 MPMoviePlayer 的loadState是否为3（其中表示 MPMovieLoadStatePlayable | MPMovieLoadStatePlaythroughOK ）和playbackState为1（表示 MPMoviePlaybackStatePlaying ）

To ensure that the black flicker is gone, you can check if the MPMoviePlayer's loadState is 3 ( which means MPMovieLoadStatePlayable | MPMovieLoadStatePlaythroughOK ) and playbackState is 1 (which means MPMoviePlaybackStatePlaying)

首先隐藏你的 MPMoviePlayer ：

yourMPMoviePlayer.view.hidden = YES;

只需添加一个观察者，以便在loadState更改时收到通知：

Just add an observer to be notified when loadState changes:

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(loadStateChanged:) 
                                             name:MPMoviePlayerLoadStateDidChangeNotification
                                           object:nil];

并在收到通知并满足条件后再次显示您的MPMoviePlayer：

And make your MPMoviePlayer visible again when you are notified and conditions are met:

-(void)loadStateChanged:(NSNotification *)sentNotification
{
    if ( player.loadState == 3 &&  player.playbackState == 1 )
       yourMPMoviePlayer.view.hidden = NO;
}

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