概述

详细

我们经常会有多行多列按钮的页面, 这个时候我们通常会选择循环创建按钮, 然后进行按钮单选或者多选的操作!

一、程序实现

一. 单选逻辑处理

1. 创建按钮控件数组及标签数组, 并升级当前选中按钮为属性,方便使用

// 标签数组(按钮文字)
@property (nonatomic, strong) NSArray *markArray;
// 按钮数组
@property (nonatomic, strong) NSMutableArray *btnArray;
// 选中按钮
@property (nonatomic, strong) UIButton *selectedBtn;

#pragma mark - 懒加载

- (NSArray *)markArray {if (!_markArray) {NSArray *array = [NSArray array];array = @[@"14", @"15", @"16", @"17", @"18"];_markArray = array;}return _markArray;
}
- (NSMutableArray *)btnArray {if (!_btnArray) {NSMutableArray *array = [NSMutableArray array];_btnArray = array;}return _btnArray;
}

2. 创建单选视图, 循环创建按钮, 并回显上次选中值

- (void)setupRadioBtnView {CGFloat UI_View_Width = [UIScreen mainScreen].bounds.size.width;CGFloat marginX = 15;CGFloat top = 100;CGFloat btnH = 30;CGFloat width = (250 - marginX * 4) / 3;// 按钮背景UIView *btnsBgView = [[UIView alloc] initWithFrame:CGRectMake((UI_View_Width - 250) * 0.5, 50, 250, 300)];btnsBgView.backgroundColor = [UIColor whiteColor];[self.view addSubview:btnsBgView];// 循环创建按钮NSInteger maxCol = 3;for (NSInteger i = 0; i < 5; i++) {UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];btn.backgroundColor = ZLUnselectedColor;btn.layer.cornerRadius = 3.0; // 按钮的边框弧度btn.clipsToBounds = YES;btn.titleLabel.font = [UIFont boldSystemFontOfSize:12];[btn setTitleColor:[UIColor colorWithRed:(102)/255.0 green:(102)/255.0 blue:(102)/255.0 alpha:1.0] forState:UIControlStateNormal];[btn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];[btn addTarget:self action:@selector(chooseMark:) forControlEvents:UIControlEventTouchUpInside];NSInteger col = i % maxCol; //列btn.x = marginX + col * (width + marginX);NSInteger row = i / maxCol; //行btn.y = top + row * (btnH + marginX);btn.width = width;btn.height = btnH;[btn setTitle:self.markArray[i] forState:UIControlStateNormal];[btnsBgView addSubview:btn];btn.tag = i;[self.btnArray addObject:btn];}// 创建完btn后再判断是否能选择(之前是已经选取过的)// 假数据:之前已经上传16时,则回显16for (UIButton *btn in btnsBgView.subviews) {if ([@"16" isEqualToString:btn.titleLabel.text]) {btn.selected = YES;btn.backgroundColor = ZLSelectedColor;break;}}
}

3. 数字按钮单选处理, 根据tag值去判断是否是当前选中按钮

- (void)chooseMark:(UIButton *)sender {NSLog(@"点击了%@", sender.titleLabel.text);self.selectedBtn = sender;sender.selected = !sender.selected;for (NSInteger j = 0; j < [self.btnArray count]; j++) {UIButton *btn = self.btnArray[j] ;if (sender.tag == j) {btn.selected = sender.selected;} else {btn.selected = NO;}btn.backgroundColor = ZLUnselectedColor;}UIButton *btn = self.btnArray[sender.tag];if (btn.selected) {btn.backgroundColor = ZLSelectedColor;} else {btn.backgroundColor = ZLUnselectedColor;}
}

二. 多选逻辑处理

1. 创建按钮控件数组和标签字典, 及选中标签数组(数字)和选中标签数组(文字字符串), 为了展示及上传按钮数据使用

// 标签数组
@property (nonatomic, strong) NSArray *markArray;
// 标签字典
@property (nonatomic, strong) NSDictionary *markDict;
// 选中标签数组(数字)
@property (nonatomic, strong) NSMutableArray *selectedMarkArray;
// 选中标签数组(文字字符串)
@property (nonatomic, strong) NSMutableArray *selectedMarkStrArray;

#pragma mark - 懒加载

- (NSArray *)markArray {if (!_markArray) {NSArray *array = [NSArray array];array = @[@"导购", @"客服", @"家教", @"礼仪", @"主持"];_markArray = array;}return _markArray;
}
// 上传通过文字key取数字value发送数字
- (NSDictionary *)markDict {if (!_markDict) {NSDictionary *dict = [NSDictionary dictionary];dict = @{@"导购" : @"3" ,@"客服" : @"7",@"家教" : @"9",@"礼仪" : @"10",@"主持" : @"11",};_markDict = dict;}return _markDict;
}
- (NSMutableArray *)selectedMarkArray {if (!_selectedMarkArray) {_selectedMarkArray = [NSMutableArray array];}return _selectedMarkArray;
}
- (NSMutableArray *)selectedMarkStrArray {if (!_selectedMarkStrArray) {_selectedMarkStrArray = [NSMutableArray array];}return _selectedMarkStrArray;
}

2.循环创建按钮视图, 循环创建按钮

- (void)setupMultiselectView {CGFloat UI_View_Width = [UIScreen mainScreen].bounds.size.width;CGFloat marginX = 15;CGFloat top = 19;CGFloat btnH = 35;CGFloat marginH = 40;CGFloat height = 130;CGFloat width = (UI_View_Width - marginX * 4) / 3;// 按钮背景UIView *btnsBgView = [[UIView alloc] initWithFrame:CGRectMake(0, 100, UI_View_Width, height)];btnsBgView.backgroundColor = [UIColor whiteColor];[self.view addSubview:btnsBgView];// 循环创建按钮NSInteger maxCol = 3;for (NSInteger i = 0; i < 5; i++) {UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];btn.backgroundColor = ZLUnselectedColor;btn.layer.cornerRadius = 3.0; // 按钮的边框弧度btn.clipsToBounds = YES;btn.titleLabel.font = [UIFont boldSystemFontOfSize:14];[btn setTitleColor:[UIColor colorWithRed:(102)/255.0 green:(102)/255.0 blue:(102)/255.0 alpha:1.0] forState:UIControlStateNormal];[btn setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];[btn addTarget:self action:@selector(chooseMark:) forControlEvents:UIControlEventTouchUpInside];NSInteger col = i % maxCol; //列btn.x  = marginX + col * (width + marginX);NSInteger row = i / maxCol; //行btn.y = top + row * (btnH + marginX);btn.width = width;btn.height = btnH;[btn setTitle:self.markArray[i] forState:UIControlStateNormal];[btnsBgView addSubview:btn];}// 确定按钮UIButton *surebtn = [UIButton buttonWithType:UIButtonTypeCustom];[surebtn setTitle:@"确定" forState:UIControlStateNormal];surebtn.frame = CGRectMake(marginX * 2, CGRectGetMaxY(btnsBgView.frame) + marginH, UI_View_Width - marginX * 4, 40);surebtn.titleLabel.font = [UIFont boldSystemFontOfSize:16];[surebtn addTarget:self action:@selector(sureBtnClick) forControlEvents:UIControlEventTouchUpInside];surebtn.backgroundColor = [UIColor orangeColor];surebtn.layer.cornerRadius = 3.0;surebtn.clipsToBounds = YES;[self.view addSubview:surebtn];
}

3. 按钮多选逻辑处理, 并上传数据请求处理

/*** 按钮多选处理*/
- (void)chooseMark:(UIButton *)btn {btn.selected = !btn.selected;if (btn.isSelected) {btn.backgroundColor = ZLSelectedColor;[self.selectedMarkArray addObject:self.markDict[btn.titleLabel.text]];[self.selectedMarkStrArray addObject:btn.titleLabel.text];} else {btn.backgroundColor = ZLUnselectedColor;[self.selectedMarkArray removeObject:self.markDict[btn.titleLabel.text]];[self.selectedMarkStrArray removeObject:btn.titleLabel.text];}
}

/*** 确认接口请求处理*/
- (void)sureBtnClick {// 用户选择标签后就把值上传, 也要传给服务器下次直接请求回来// 按钮数字标识字符串NSString *numStr = [self.selectedMarkArray componentsJoinedByString:@","];// 按钮文字字符串NSString *str = [self.selectedMarkStrArray componentsJoinedByString:@","];// 测试:拼接请求参数NSLog(@"按钮数字标识字符串:%@", numStr);NSLog(@"按钮文字字符串:%@", str);
}

三. 可选与不可选逻辑处理

当然有时候也有特殊按钮不让选择.

假数据 测试, 逻辑如下

// 不可选按钮for (UIButton *btn in self.btnArray) {if (btn.tag != 0) {  btn.enabled = YES;btn.backgroundColor = [UIColor whiteColor];btn.layer.borderColor = [XHHNavColor CGColor];} else {btn.enabled = NO;btn.backgroundColor =  XHHColor(230, 230, 230);btn.layer.borderColor = [XHHColor(230, 230, 230) CGColor];}}

二、运行效果

1、单选运行

2、多选运行

三、压缩文件截图

界面性问题可以根据自己项目需求调整即可, 具体可参考代码, 项目能够直接运行!