_modelWindow = [[LvModelWindow alloc]initWithPreferStatusBarHidden:NO preferStatusBarStyle:UIStatusBarStyleLightContent supportedOrientationPortrait:NO supportedOrientationPortraitUpsideDown:NO supportedOrientationLandscapeLeft:NO supportedOrientationLandscapeRight:NO];
_modelWindow.modelWindowDelegate = self;

UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 100, CGRectGetWidth(self.view.bounds), 64)];
[_modelWindow.windowRootView addSubview:label];
_modelWindow.windowRootView.backgroundColor = [UIColor blackColor];

label.text = @"😄我显示出来了, 再点我就会消失";
label.backgroundColor = [UIColor whiteColor];
label.textColor = [UIColor blackColor];
label.textAlignment = NSTextAlignmentCenter;

label.userInteractionEnabled = YES;
[label addGestureRecognizer:[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(dismissModelWindow)]];

### 设置动画实体，举例：添加一个 DefaultModelWindowAnimation
_modelWindow.modelWindowAnimation = ({
    DefaultModelWindowAnimation *animation = [[DefaultModelWindowAnimation alloc]init];
    animation.touchBackgroudView = _modelWindow.windowRootView;
    animation.contentView = label;
    animation;
});