ZFPlayer 设置全屏模式（边框裁剪）

ZFAVPlayerManager *playerManager = [[ZFAVPlayerManager alloc] init];

    // 全屏模式，带裁剪 ，避免有黑边

    playerManager.scalingMode = ZFPlayerScalingModeAspectFill;

player = [ZFPlayerController playerWithPlayerManager:playerManager containerView:self.containerView];