想自定义self.controlView.bottomPgrogress样式，需要在什么时机进行布局呢？

[sushushu]

我尝试在播放前，播放后加这几句都不成功，执行removeFromSuperview倒是可以.

[sushushu]

    [self.controlView.bottomPgrogress setBackgroundColor:[UIColor redColor]];
    [self.controlView.bottomPgrogress mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self.controlView);
        make.bottom.equalTo(self.controlView).offset(-50);
        make.height.offset(20);
    }];