在项目过程中,有视频横竖屏切换的逻辑,但是在各种尝试之后,个人感觉,在关闭掉app在当前页面横竖屏支持,处理起来逻辑最简单,但是我们又不能不支持用户自己横竖手机时候的动态支持,所以,我在自己的项目中通过监听设备信息来处理横竖屏逻辑(可以简单的避免有些用户进入到我们支持自动旋转屏幕页面的时候,当时的设备就是横屏的时候的一些问题,我们之间避开了)
个人实现逻辑如下:
1.进入播放器页面 确定当前设备状态及未进行横竖屏时 播放器视图的位置及视图关系
2.用户点击横屏/竖屏,或者用户手动旋转的时候,进行逻辑处理,将播放器从之前的父视图移动到window上,然后将播放器旋转正负90度(左横屏和右横屏,其实此时frame会变,宽高颠倒),然后调整播放器的frame为全屏), 反之,将播放器从window恢复到原父视图(旋转回复到0),然后修改frame即可
具体细节如下:
1.在进入播放器页面的时候,首先获取当前设备的状态,左横屏?右横屏?竖屏?代码如下:
//以后还需要监听屏幕旋转 和进入后台等操作
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(doRotateAction:) name:UIDeviceOrientationDidChangeNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onAppDidEnterBackGround:) name:UIApplicationDidEnterBackgroundNotification object:nil];
UIInterfaceOrientation sataus=[UIApplication sharedApplication].statusBarOrientation;
if (sataus == UIDeviceOrientationLandscapeLeft) {
self.currentOrientation = UIDeviceOrientationLandscapeLeft;
}else if (sataus == UIDeviceOrientationLandscapeRight){
self.currentOrientation = UIDeviceOrientationLandscapeRight;
}else{
self.currentOrientation = UIDeviceOrientationPortrait;
}
2.然后构造播放器和视图,效果如图:
Untitled12.gif
3.然后监听设备状态:
代码如下:
//实现监听的通知方法:
- (void)doRotateAction:(NSNotification *)notification {
if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) {
self.currentOrientation = UIDeviceOrientationPortrait;
if (isfullScreen) {
[self changeScreenFullScreen:NO];
}
} else if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft) {
if (self.currentOrientation == UIDeviceOrientationLandscapeLeft && isfullScreen ) {
return;
}
self.currentOrientation = UIDeviceOrientationLandscapeLeft;
[self changeScreenFullScreen:YES];
}else if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeRight){
if (self.currentOrientation == UIDeviceOrientationLandscapeRight && isfullScreen ) {
return;
}
self.currentOrientation = UIDeviceOrientationLandscapeRight;
[self changeScreenFullScreen:YES];
}
}
- 关键的处理横竖屏的代码
//是否全屏
- (void)changeScreenFullScreen:(BOOL)fullScreen{
// if (!self.needDealTransForm) {
// NSLog(@"当前代码不允许横竖屏 根据个人的逻辑来处理");
// return;
// }
[UIView animateWithDuration:0.3 animations:^{
if (fullScreen) {
//是全屏
[[UIApplication sharedApplication]setStatusBarHidden:YES];
[self removeFromSuperview];
UIWindow *window = [self mainWindow];
topView.hidden = NO ;
[window addSubview:self];
if (self.currentOrientation == UIDeviceOrientationLandscapeLeft) {
self.transform =CGAffineTransformMakeRotation(M_PI_2);
}else if (self.currentOrientation == UIDeviceOrientationLandscapeRight){
self.transform =CGAffineTransformMakeRotation(-M_PI_2);
}else{
self.transform =CGAffineTransformMakeRotation(M_PI_2);
}
self.frame = CGRectMake(0, 0, ScreenWidth, ScreenHeight);
bottomView.frame = CGRectMake(0, ScreenWidth-40, ScreenHeight, 40);
topView.frame = CGRectMake(0, 0, ScreenHeight, 40);
isfullScreen = YES;
[changeFullScreenBtn setImage:[UIImage imageNamed:@"ox"] forState:UIControlStateNormal];
return;
}else{
[[UIApplication sharedApplication]setStatusBarHidden:NO];
self.transform =CGAffineTransformMakeRotation(0);
self.frame = originFrame;
bottomView.frame = CGRectMake(0, self.frame.size.height-40, ScreenWidth, 40);
topView.hidden = YES;
[self removeFromSuperview];
[changeFullScreenBtn setImage:[UIImage imageNamed:@"dk"] forState:UIControlStateNormal];
[_parentView addSubview:self];
isfullScreen = NO;
}
}];
}
以上,基本上播放器横竖屏功能已经实现,上面可能会有同学告诉我,为什么我既用frame,还用masonry,其实,我使用frame我没办法,当我使用masonry设置播放器代理里面的bottomeView和topView的时候 ,旋转的时候, 在iOS 11上效果是我们期望的效果,但是在iOS其他版本(个人试了iOS 10 和iOS 8)效果不是我们期望的那样,后来也没想明白,如果有朋友或者同学了解具体原因,可以给我指导一下,谢谢大家!
顺便给大家上个demo: https://github.com/yangfangkuo/VideoOrientationTransform
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