iOS-按钮单选与多选逻辑处理

概述

循环创建按钮, 进行按钮单选或者多选的操作.

详细

代码下载：http://www.demodashi.com/demo/10712.html

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16
    for (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!

代码下载：http://www.demodashi.com/demo/10712.html

注：本文著作权归作者，由demo大师发表，拒绝转载，转载需要作者授权