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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