视频播放如何横竖屏切换续

接上篇文章

2 腾讯视频的横竖屏切换的实现方法

首先控制整个viewcontroller的view仅支持默认的竖屏即可

- (BOOL)shouldAutorotate{
return NO;
}

然后添加监测屏幕方向变化的通知

- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationHasChange:) name:UIDeviceOrientationDidChangeNotification object:nil];
}

接着在通知的回调方法中操作如下

- (void)orientationHasChange:(NSNotification *)notification{
UIDevice *device = (UIDevice *)notification.object;
if(device.orientation == UIInterfaceOrientationLandscapeLeft){
[self rotateToLandscapeLeft];
}
else if(device.orientation == UIInterfaceOrientationLandscapeRight){
[self rotateToLandscapeRight];
}
else if(device.orientation == UIInterfaceOrientationPortrait){
[self rotateToPortrait];
}
}
- (void)rotateToFullScreen{
if(SCREEN_WIDTH>SCREEN_HEIGHT){
_videoPlayManageView.frame = CGRectMake(0, 0, SCREEN_HEIGHT, SCREEN_WIDTH);
}
else{
_videoPlayManageView.frame = CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
}
[_videoPlayManageView enterInFullScreen];
}
- (void)rotateToLandscapeLeft{
if(_lastOrientationValue==UIInterfaceOrientationLandscapeLeft){
return;
}
[UIView animateWithDuration:0.3 animations:^{
_videoPlayManageView.transform = CGAffineTransformMakeRotation(-M_PI/2);
[self rotateToFullScreen];
} completion:^(BOOL finished) {

}];
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO];
_lastOrientationValue = UIInterfaceOrientationLandscapeLeft;
}
- (void)rotateToLandscapeRight{
if(_lastOrientationValue==UIInterfaceOrientationLandscapeRight){
return;
}
[UIView animateWithDuration:0.3 animations:^{
_videoPlayManageView.transform = CGAffineTransformMakeRotation(M_PI/2);
[self rotateToFullScreen];
} completion:^(BOOL finished) {

}];
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:NO];
_lastOrientationValue = UIInterfaceOrientationLandscapeRight;
}
- (void)rotateToPortrait{
if(_lastOrientationValue==UIInterfaceOrientationPortrait){
return;
}
[[UIApplication sharedApplication] setStatusBarHidden:NO];
[UIView animateWithDuration:0.3 animations:^{
_videoPlayManageView.transform = CGAffineTransformIdentity;
_videoPlayManageView.frame = _normalScreenFrame;
[_videoPlayManageView exitFromFullScreen];
} completion:^(BOOL finished) {

}];
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];
_lastOrientationValue = UIInterfaceOrientationPortrait;
}

最后，如果想强制播放器横屏或者竖屏播放，可以这样

- (void)videoPlayManageViewExitFullScreenButtonTapped{
[self rotateToPortrait];
}
- (void)videoPlayManageViewEnterFullScreenButtonTapped{
[self rotateToLandscapeRight];
}

OK，大功告成。

PS:demo完整版下载地址为：

https://github.com/wangqi211/VideoPlayDemo.git