OC 简单的实现悬浮按钮

最新推荐文章于 2024-03-10 22:00:47 发布

原创最新推荐文章于 2024-03-10 22:00:47 发布 · 966 阅读

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CC 4.0 BY-SA版权

这篇博客介绍了如何在Objective-C（OC）中创建一个悬浮按钮，提供了相关的代码实现，并展示了实现后的效果。通过这段代码，开发者可以将按钮固定在屏幕特定位置，增加应用交互性。

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代码如下：

#import <UIKit/UIKit.h>
@interface SuspensionView : UIView
/**悬浮按钮*/
@property (nonatomic, strong)UIButton *suspensionBtn;
/**显示*/
- (void)show;
/**隐藏*/
- (void)hide;
@end

#import "SuspensionView.h"
@implementation SuspensionView
- (instancetype)initWithFrame:(CGRect)frame {
    if ([super initWithFrame:frame]) {
        self.frame = CGRectMake(UI_SCREEN_WIDTH - 80, UI_SCREEN_HEIGHT - HOME_INDICATOR_HEIGHT - HeightForNagivationBarAndStatusBar - 90, 60, 60);
        self.alpha = 0.7;
        self.layer.cornerRadius = self.frame.size.width / 2;
        self.layer.borderWidth = 1;
        self.layer.borderColor = [UIColor grayColor].CGColor;
        
        
        self.suspensionBtn = [[UIButton alloc]init];
        self.suspensionBtn.alpha = 0.7;
        self.suspensionBtn.frame = self.bounds;
        self.suspensionBtn.layer.cornerRadius = self.frame.size.width / 2;
        [self addSubview:self.suspensionBtn];
        
    }
    return self;
}
- (void)show {
    self.hidden = NO;
    [[UIApplication sharedApplication].keyWindow addSubview:self];
}
- (void)hide {
    self.hidden = YES;
    [self removeFromSuperview];
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/
@end

2.效果如图：
在这里插入图片描述