• 效果图

  
  弹出框.png
• .h中 给定背景视图的父类控制器

@property(nonatomic,weak)BaseVC *parentVC;

.m

1.宏

#define kSelfHeight (407*ADAPTER_WIDTH)

2.分类属性

@property(nonatomic,strong)UIControl *bgControl;
@property(nonatomic,strong)UIButton *closeBtton;

3.懒加载

#pragma mark - lazy懒加载
- (UIControl *)bgControl
{
    if (!_bgControl)
    {
        UIControl *bgControl = [[UIControl alloc]initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT)];
        [sharedAppDelegate.window addSubview:bgControl];
        bgControl.backgroundColor = RGB(0, 0, 0, 0.2);
        [bgControl addTarget:self action:@selector(clickBgControl:) forControlEvents:UIControlEventTouchDown];
        _bgControl = bgControl;
    }
    return _bgControl;
}
- (UIButton *)closeBtton
{
    if (!_closeBtton) {
        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
        [self addSubview:button];
        [button setImage:[UIImage getPNGimageInBundleWithName:@"close_gray"] forState:UIControlStateNormal];;
        [button addTarget:self action:@selector(clickBgControl:) forControlEvents:UIControlEventTouchDown];
        button.frame = CGRectMake(self.width - 45*ADAPTER_WIDTH, 0, 45*ADAPTER_WIDTH, 43*ADAPTER_WIDTH);//10+15+20 18+15+10
        button.imageEdgeInsets = UIEdgeInsetsMake(18*ADAPTER_WIDTH, 10*ADAPTER_WIDTH, 10*ADAPTER_WIDTH, 20*ADAPTER_WIDTH);
        _closeBtton = button;
    }
    return _closeBtton;
}

5.核心代码

- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self createProperty];
        [self createUI];
        [self startAnimation];
    }
    return self;
}
#pragma mark - setter方法
- (void)setParentVC:(BaseVC *)parentVC
{
    _parentVC = parentVC;
    [self.parentVC.view addSubview:self.bgControl];
}
#pragma mark - UI
- (void)createProperty
{
    
}
- (void)createUI
{
    [self.bgControl addSubview:self];
    self.backgroundColor = [UIColor whiteColor];
    self.frame = CGRectMake(0, HEIGHT, WIDTH, kSelfHeight);
    
    [self closeBtton];
    
    [self addBeziPath];
}
- (void)addBeziPath
{
    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:UIRectCornerTopLeft | UIRectCornerTopRight cornerRadii:CGSizeMake(10, 0)];
    CAShapeLayer *maskLayer = [[CAShapeLayer alloc]init];
    maskLayer.frame = self.bounds;
    maskLayer.path = maskPath.CGPath;
    self.layer.mask = maskLayer;
}
#pragma mark - click点击事件
- (void)clickBgControl:sender
{
    [self endAnimation];
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.21 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [self removeAllSubviews];
        [self.bgControl removeAllSubviews];
        [self.bgControl removeFromSuperview];
    });
}
#pragma mark - 动画
- (void)startAnimation
{
    [UIView animateWithDuration:0.2 animations:^{
        self.frame = CGRectMake(0, HEIGHT-kSelfHeight, WIDTH, kSelfHeight);
    }];
}
- (void)endAnimation
{
    [UIView animateWithDuration:0.2 animations:^{
        self.frame = CGRectMake(0, HEIGHT, WIDTH, kSelfHeight);
    }];
}