权限判定和跳转设置

1.相机权限

NSString *mediaType = AVMediaTypeVideo;//读取媒体类型

AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];//读取设备授权状态

if(authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied){

NSLog(@"没有开启相机权限");

}

2.麦克风权限(注意这是异步的)

[[AVAudioSession sharedInstance]requestRecordPermission:^(BOOL granted) {

if (!granted)

{

NSLog(@"没有开启麦克风权限");

}else{

NSLog(@"已经开启麦克风权限");

}

3.跳转设置

[[UIApplication sharedApplication]openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];

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