iOS纯代码自定义View

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iOS纯代码自定义View

  • 1.UIGestureRecognizerDelegate
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-(instancetype)init {
    self = [super init];
    if (self) {
        [self setup];
    }
    return self;
}

-(void)setup {
    self.frame = CGRectMake(0, 0, SIMScreenWidth, SIMScreenHeight);
    
    UIColor *color                   = [UIColor blackColor];
    self.backgroundColor             = [color colorWithAlphaComponent:0.6];
    self.bgView.backgroundColor      = [UIColor clearColor];

    [self        addSubview:self.bgView];
    [self.bgView addSubview:self.bgImageView];
    [self.bgImageView addSubview:self.topImageView];
    [self.bgImageView addSubview:self.textView];
    
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(cancleButtonClick)];
    tap.delegate = self;
    [self.bgView addGestureRecognizer:tap];
}
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-(void)layoutSubviews {
    [super layoutSubviews];
    _bgView.frame      = CGRectMake(0, 0, SIMScreenWidth, SIMScreenHeight);
}
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UIWindow *window = [UIApplication sharedApplication].keyWindow;
   for (UIView * vc in [window subviews]) {
       if ([[vc class] isSubclassOfClass:[SIMFDDCommonTipsView class]]) {
           return;
       }
   }
   [window addSubview:self];
   [window makeKeyAndVisible];
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- (void)cancleButtonClick {
    UIWindow *window = [UIApplication sharedApplication].keyWindow;
    for (UIView * vc in [window subviews]) {
        if ([[vc class] isSubclassOfClass:[SIMFDDCommonTipsView class]]) {
            [vc removeFromSuperview];
            break;
        }
    }
}
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- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    if ([touch.view isDescendantOfView:self.bgImageView] || [touch.view isDescendantOfView:self.topImageView]) {
        return NO;
    }
    return YES;
}

总结一下当我们使用纯代码创建自定义

UIVIew的时候步骤：
1、新建一个继承UIVIew的类；
2、在实现文件中添加子控件（weak声明）；
3、重写- (instancetype)initWithFrame:(CGRect)frame初始化子控件但不设置子控件frame;
4、重写- (void)layoutSubviews，设置子控件frame，记得一定要写[super layoutSubviews];
5、提供一个模型属性，在该模型的set方法中为子控件赋值；

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