//// gzhGuideView.h// GuideView//// Created by 郭志賀 on 2020/5/29.// Copyright © 2020 郭志賀. All rights reserved.//#import <UIKit/UIKit.h>NS_ASSUME_NONNULL_BEGIN@interface gzhGuideView : UIView-(void)showGuide:(UIView*)view;//顯示引導-(void)dismissGuide;//移除@endNS_ASSUME_NONNULL_END

//// gzhGuideView.m// GuideView//// Created by 郭志賀 on 2020/5/29.// Copyright © 2020 郭志賀. 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];    //主要代碼 添加路徑    UIBezierPath *path = [UIBezierPath bezierPathWithRect:frame];    // 這里添加第二個路徑 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];    //根據需求添加按鈕 實現點擊事件    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(@"引導狀態可點擊");}@end

gzhGuideView * guide = [[gzhGuideView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)];dispatch_async(dispatch_get_main_queue(), ^{[guide showGuide: self .view]; });