实现界面如上所示：
有一个弹框，弹框上边有一个关闭按钮，点击按钮，可以关闭弹框。点击弹框的周围区域也可以关闭按钮。 点击上边的隐藏弹框也可以关闭按钮。 在实现功能的基础上，以动画的形式展示跟隐藏。 思路：在之前的开发中，我的思路比较局限。想着用一个view来做中间的那一块，那么问题来了，左上角的关闭按钮，就加在view的左上角。效果猛一看是可以实现，但是这个关闭按钮的点击事件，却不怎么好使，因为按钮有一部分超出了view的界限，于是，点击起来就不太好使。 遇见问题，解决问题。于是我就转换了一种思路。当然这思路还是在别人的指点下完成的。
思路如下：
1.首先确实需要一个弹框的view1 view1的大小是整个界面的大小。设置这个view的背景为半透明，透明度可以是0.5 或者是任意0-1之间的数值，具体看你想要的效果。
2.然后需要一个放内容的view2 这个view2里边包含了 上边的img 还有两行文字，都是放在这个view2里边的。
3.最后将关闭按钮 加在view1的上边。这样就大功告成了。 随便点击关闭按钮，丝毫没有任何印象。
核心代码实现：acercodeview的代码 // // ACErCodeView.m // demo1二维码点击动态出现 // // Created by Alice_ss on 2018/1/3. // Copyright © 2018年 AC. All rights reserved. // #import "ACErCodeView.h" #define SCREENW [UIScreen mainScreen].bounds.size.width #define SCREENH [UIScreen mainScreen].bounds.size.height @implementation ACErCodeView{ UIImageView *codeIMG; UILabel *nickNameLabel; UILabel *sexLabel; UIButton *closeBtn; } -(instancetype)initWithFrame:(CGRect)frame{ if (self = [super initWithFrame:frame]) { [self createUI]; } return self; } - (void)createUI{ //1.创建一个view背景设置呈透明的因为这样的话才能将关闭按钮悬浮在上边。 UIImageView *bgView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 64, SCREENW,SCREENH)]; UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapClose)]; bgView.userInteractionEnabled = YES; [bgView addGestureRecognizer:tap]; [self addSubview:bgView]; //2.放内容的大view UIView *contentView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, SCREENW-120,SCREENH-200)]; contentView.backgroundColor = [UIColor whiteColor]; [self addSubview:contentView]; //3.二维码图片 codeIMG = [[UIImageView alloc]initWithFrame:CGRectMake((CGRectGetWidth(contentView.frame)-100)/2, CGRectGetMinY(contentView.frame), 100, 100)]; codeIMG.backgroundColor = [UIColor redColor]; [contentView addSubview:codeIMG]; //4.昵称 nickNameLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(codeIMG.frame)+10, CGRectGetWidth(contentView.frame), 44)]; // nickNameLabel.backgroundColor = [UIColor blueColor]; nickNameLabel.text = @"我是你们喜欢的Alice"; nickNameLabel.textAlignment = NSTextAlignmentCenter; [contentView addSubview:nickNameLabel]; //5.sex sexLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(nickNameLabel.frame)+10, CGRectGetWidth(contentView.frame), 44)]; // sexLabel.backgroundColor = [UIColor redColor]; sexLabel.text= @"我的性别是一个漂亮的小美女哦"; sexLabel.textAlignment = NSTextAlignmentCenter; [contentView addSubview:sexLabel]; //给contentview设置高度 contentView.frame = CGRectMake(SCREENW/2-(SCREENW-120)/2, (SCREENH-(CGRectGetMaxY(sexLabel.frame)+10))/2, SCREENW-120, CGRectGetMaxY(sexLabel.frame)+10); //6.关闭按钮 closeBtn = [[UIButton alloc]initWithFrame:CGRectMake(CGRectGetMinX(contentView.frame)-10, CGRectGetMinY(contentView.frame)-10, 30, 30) ]; [closeBtn setBackgroundImage:[UIImage imageNamed:@"icon_shouye_GuanBi.png"] forState:0]; [closeBtn addTarget:self action:@selector(closeBtnClicked:) forControlEvents:UIControlEventTouchUpInside]; [self addSubview:closeBtn]; } //关闭页面 - (void)closeBtnClicked:(UIButton*)sender{ [UIView animateWithDuration:0.3 animations:^{ self.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.3, 0.3); } completion:^(BOOL finished) { [UIView animateWithDuration:0.2 animations:^{ self.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0, 0); }]; self.hidden = YES; self.blockCloseClicked(self.hidden); }]; } //点击背景隐藏界面 - (void)tapClose{ [UIView animateWithDuration:0.3 animations:^{ self.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.3, 0.3); } completion:^(BOOL finished) { [UIView animateWithDuration:0.2 animations:^{ self.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0, 0); }]; self.hidden = YES; self.blockCloseClicked(self.hidden); }]; } @end
//viewcontroller的书写
// // Created by Alice_ss on 2018/1/3. // Copyright © 2018年 AC. All rights reserved. // #import "ViewController.h" #import "ACErCodeView.h" #define SCREENW [UIScreen mainScreen].bounds.size.width #define SCREENH [UIScreen mainScreen].bounds.size.height @interface ViewController () @property (weak, nonatomic) IBOutlet UIBarButtonItem *navRBarItem; @property(nonatomic,strong)ACErCodeView *erCodeIMG; @end @implementation ViewController - (IBAction)naviRBarClicked:(UIBarButtonItem *)sender { NSLog(@"RIGHT BAR ITEM CLICKED"); if(_erCodeIMG.hidden){ _erCodeIMG.hidden = NO; sender.title = @"点击隐藏"; _erCodeIMG.transform = CGAffineTransformScale(CGAffineTransformIdentity, CGFLOAT_MIN, CGFLOAT_MIN); [UIView animateWithDuration:0.3 animations:^{ self.erCodeIMG.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.0, 1.0); } completion:^(BOOL finished) { [UIView animateWithDuration:0.2 animations:^{ _erCodeIMG.transform = CGAffineTransformIdentity; }]; }]; }else{ sender.title = @"点击显示"; [UIView animateWithDuration:0.3 animations:^{ self.erCodeIMG.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.3, 0.3); } completion:^(BOOL finished) { [UIView animateWithDuration:0.2 animations:^{ _erCodeIMG.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0, 0); }]; _erCodeIMG.hidden = YES; }]; } } - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [UIColor yellowColor]; // Do any additional setup after loading the view, typically from a nib. _erCodeIMG = [[ACErCodeView alloc]initWithFrame:CGRectMake(0, 0,SCREENW , SCREENH)]; _erCodeIMG.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5]; _erCodeIMG.hidden = YES; __weak typeof(self) weakSelf = self; _erCodeIMG.blockCloseClicked = ^(BOOL ishidden) { if (ishidden) { self.navRBarItem.title = @"点击显示"; }else{ self.navRBarItem.title = @"点击隐藏"; } }; [self.view addSubview:_erCodeIMG]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end
以上就是全部代码。
希望新的一年，自己工作越来越踏实。同时也要学会拒绝，学会给与。
如有任何问题。请联系我的邮箱 673658917@qq.com .
转载于:https://www.cnblogs.com/lishanshan/p/8259607.html
