iOS开发添加新手引导效果
往往项目中经常出现此类需求
用户通过点击引导按钮可响应页面附带按钮的点击事件。
// // gzhGuideView.h // GuideView // // Created by 郭志贺 on 2020/5/29. // Copyright © 2020 郭志贺. All rights reserved. // #import <UIKit/UIKit.h> NS_ASSUME_NONNULL_BEGIN @interface gzhGuideView : UIView -(void)showGuide:(UIView*)view;//显示引导 -(void)dismissGuide;//移除 @end NS_ASSUME_NONNULL_END
// // gzhGuideView.m // GuideView // // Created by 郭志贺 on 2020/5/29. // Copyright © 2020 郭志贺. All rights reserved. // #import "gzhGuideView.h" @implementation gzhGuideView -(instancetype)initWithFrame:(CGRect)frame{ if (self = [super initWithFrame:frame]) { self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.6]; //主要代码 添加路径 UIBezierPath *path = [UIBezierPath bezierPathWithRect:frame]; // 这里添加第二个路径 需要扣除的部分 [path appendPath:[[UIBezierPath bezierPathWithRoundedRect:CGRectMake(100, 100, 150, 40) cornerRadius:5] bezierPathByReversingPath]]; //渲染 CAShapeLayer *shapeLayer = [CAShapeLayer layer]; shapeLayer.path = path.CGPath; [self.layer setMask:shapeLayer]; //根据需求添加按钮 实现点击事件 UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(100, 100, 150, 40); [button addTarget:self action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside]; button.layer.cornerRadius = 5.0f; button.layer.masksToBounds = YES; [self addSubview:button]; } return self; } -(void)showGuide:(UIView *)view{//添加 [view.window addSubview:self]; [view.window bringSubviewToFront:self]; self.alpha = 1; } -(void)dismissGuide{//移除 [self removeFromSuperview]; } -(void)buttonClick{ [self dismissGuide]; NSLog(@"引导状态可点击"); } @end
相应页面直接添加
gzhGuideView * guide = [[gzhGuideView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)]; dispatch_async(dispatch_get_main_queue(), ^{ [guide showGuide: self .view]; });
可根据不同需求进行不同的布局,核心代码就是添加路径
总结
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