UI定制 - 全局提示框

■ 全局提示框

在开发中，一个全局提示框是很有必要的，毕竟系统的弹框是满足不了产品的变态要求。 实现这样一个功能其实很简单

代码示例：PopView 就是我们要封装的全局弹框

// - PopView.h

 1 #import <UIKit/UIKit.h>
 2 typedef void(^cancelBlock)(void);
 3 typedef void(^sureBlock)(void);
 4 @interface PopView : UIView
 5 
 6 @property(nonatomic,copy)cancelBlock cancelBtnBlock;
 7 @property(nonatomic,copy)sureBlock sureBtnBlock;
 8 
 9 + (instancetype)alterViewWithTitle:(NSString *)title
10                            content:(NSString *)content
11                           infoSure:(NSString *)sure
12                     sureBtnClicked:(sureBlock)sureBlock
13                         infoCancel:(NSString *)cancle
14                   cancelBtnClicked:(cancelBlock)cancleBlock;
15 @end

// - PopView.m

  1 #import "PopView.h"
  2 #define WIDTH_SCREEN   [UIScreen mainScreen].bounds.size.width
  3 #define HEIGHT_SCREENH [UIScreen mainScreen].bounds.size.height
  4 @interface PopView ()
  5 
  6 @property(nonatomic,retain)UIView *alterView; // 弹窗
  7 @property(nonatomic,retain)UILabel *titleLb;
  8 @property(nonatomic,retain)UILabel *contentLb;
  9 
 10 @property(nonatomic,copy)NSString *title;    // 标题
 11 @property(nonatomic,copy)NSString *content;  // 内容
 12 // 确认
 13 @property(nonatomic,retain)UIButton *sureBtn;
 14 @property(nonatomic,copy)NSString *sureString;
 15 // 取消
 16 @property(nonatomic,retain)UIButton *cancelBtn;
 17 @property(nonatomic,copy)NSString *cancelString;
 18 
 19 @end
 20 
 21 @implementation PopView
 22 - (instancetype)initWithFrame:(CGRect)frame{
 23     
 24     self = [super initWithFrame:frame];
 25     if(self){
 26         
 27         // 将遮罩层添加到 keyWindow 上
 28         UIWindow *window = [[UIApplication sharedApplication] keyWindow];
 29         // 做戏就做全套，添加一个淡黑色遮罩层：除了弹框，其他地方就不能点击
 30         UIView *maskView = [[UIView alloc] init];
 31         maskView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
 32         maskView.frame = window.frame;
 33         maskView.tag = 1001;
 34         [window addSubview:maskView];
 35         
 36         // 可简单写一些动画
 37         [UIView animateWithDuration:0.3 animations:^{
 38             maskView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.3];
 39         }];
 40         
 41         
 42         float y_Space = 20.0;
 43         float x_Space = 30.0;
 44         
 45         // 标题
 46         _titleLb = [[UILabel alloc] initWithFrame:CGRectMake(x_Space, y_Space, self.bounds.size.width/1.3, 30)];
 47         _titleLb.textColor = [UIColor colorWithRed:111/255.0 green:222/255.0 blue:199/255.0 alpha:1.0];
 48         _titleLb.font = [UIFont systemFontOfSize:18];
 49         _titleLb.adjustsFontForContentSizeCategory = YES;
 50         [self addSubview:_titleLb];
 51         
 52         // 内容
 53         _contentLb = [[UILabel alloc] initWithFrame:CGRectMake(_titleLb.frame.origin.x, CGRectGetMaxY(_titleLb.frame)+5, self.bounds.size.width/1.3, 30)];
 54         _contentLb.font = [UIFont systemFontOfSize:15];
 55         _contentLb.textColor = [UIColor darkGrayColor];
 56         [self addSubview:_contentLb];
 57         
 58         
 59         // 确定按钮
 60         _sureBtn = [UIButton buttonWithType:UIButtonTypeCustom];
 61         _sureBtn.layer.cornerRadius = 5;
 62         _sureBtn.layer.masksToBounds = YES;
 63         _sureBtn.backgroundColor = _titleLb.textColor;
 64         [_sureBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
 65         [_sureBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
 66         [self addSubview:_sureBtn];
 67         _sureBtn.frame = CGRectMake(self.bounds.size.width/2 + x_Space, CGRectGetMaxY(self.frame)-45-y_Space, self.bounds.size.width/2 - 2*x_Space, 45);
 68         
 69         // 取消按钮
 70         _cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
 71         _cancelBtn.layer.cornerRadius = 5;
 72         _cancelBtn.layer.masksToBounds = YES;
 73         _cancelBtn.layer.borderColor = _sureBtn.backgroundColor.CGColor;
 74         _cancelBtn.layer.borderWidth = 1.5;
 75         [_cancelBtn setTitleColor:_sureBtn.backgroundColor forState:UIControlStateNormal];
 76         [_cancelBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
 77         [self addSubview:_cancelBtn];
 78         _cancelBtn.frame = CGRectMake(x_Space, CGRectGetMinY(_sureBtn.frame), _sureBtn.frame.size.width, _sureBtn.frame.size.height);
 79         
 80         // 将 self 添加进遮罩层
 81         [maskView addSubview:self];
 82     }
 83     return self;
 84 }
 85 
 86 #pragma mark - 封装方法
 87 + (instancetype)alterViewWithTitle:(NSString *)title
 88                            content:(NSString *)content
 89                           infoSure:(NSString *)sure
 90                     sureBtnClicked:(sureBlock)sureBlock
 91                         infoCancel:(NSString *)cancle
 92                   cancelBtnClicked:(cancelBlock)cancleBlock{
 93     
 94     PopView *alterView=[[PopView alloc] initWithFrame:CGRectMake(0, 0, WIDTH_SCREEN/1.1, HEIGHT_SCREENH/3.3)];
 95     alterView.backgroundColor = [UIColor whiteColor];
 96     alterView.center = CGPointMake(WIDTH_SCREEN/2, HEIGHT_SCREENH/2 +20);
 97     alterView.layer.cornerRadius = 5;
 98     alterView.layer.masksToBounds = YES;
 99     
100     // 开始赋值
101     alterView.title = title;
102     alterView.content = content;
103     alterView.sureString = sure;
104     alterView.sureBtnBlock = sureBlock;
105     alterView.cancelString = cancle;
106     alterView.cancelBtnBlock = cancleBlock;
107     
108     return alterView;
109 }
110 
111 #pragma mark - 属性赋值
112 - (void)setTitle:(NSString *)title{
113     _titleLb.text = title;
114 }
115 
116 - (void)setContent:(NSString *)content{
117     _contentLb.text = content;
118 }
119 
120 - (void)setSureString:(NSString *)sureString{
121     [_sureBtn setTitle:sureString forState:UIControlStateNormal];
122     [_sureBtn setTitle:@" " forState:UIControlStateHighlighted];
123 }
124 
125 - (void)setCancelString:(NSString *)cancelString{
126     
127     [_cancelBtn setTitle:cancelString forState:UIControlStateNormal];
128     [_cancelBtn setTitle:@" " forState:UIControlStateHighlighted];
129 }
130 
131 #pragma mark - 点击事件
132 - (void)btnClick:(UIButton *)btn{
133     // 移除遮罩
134     UIView *maskView = [[[UIApplication sharedApplication] keyWindow] viewWithTag:1001];
135     [maskView removeFromSuperview];
136     // 触发判断
137     if([btn isEqual:_sureBtn]){
138         self.sureBtnBlock();
139     }else{
140         self.cancelBtnBlock();
141     }
142 }
143 
144 @end

// - ViewController.m

 1 #import "ViewController.h"
 2 #import "PopView.h"
 3 @implementation ViewController
 4 
 5 - (void)viewDidLoad {
 6     [super viewDidLoad];
 7 }
 8 
 9 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
10     [super touchesBegan:touches withEvent:event];
11     
12     [PopView alterViewWithTitle:@"系统提示" content:@"请立即重置密码" infoSure:@"确定" sureBtnClicked:^{
13         
14     } infoCancel:@"取消" cancelBtnClicked:^{
15         
16     }];
17 }
18 
19 @end

运行效果