iOS自定义从底部弹上来的View

ゝ一纸荒年。 2022-05-31 10:16 350阅读 0赞

# 概述 #

自定义蒙层弹起View，点击一下遮罩或界面上关闭按钮，页面会自动下去（从上向下）

# 详细 #

#### 代码下载：[http://www.demodashi.com/demo/10724.html][http_www.demodashi.com_demo_10724.html] ####

在一些少数据没必要跳转下个界面,我们的产品大大就设计了在当前界面的底部弹上来一个View!

看下项目里截图:

![项目截图.png][.png]

#### 一、主要思路 ####

1、首先封装这个自定义蒙层弹起View: ZLBounceView

2、在ZLTuanNumView里添加你需要的视图 View

3、使用代理和模型传值

#### 二、程序实现 ####

Step1. 首先封装这个自定义蒙层弹起View: ZLBounceView

设置界面相关:

- (void)setupContent {
        self.frame = CGRectMake(0, 0, UI_View_Width, ZLBounceViewHight);
        
        //alpha 0.0  白色   alpha 1 ：黑色   alpha 0～1 ：遮罩颜色，逐渐
        self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.4];
        self.userInteractionEnabled = YES;
        [self addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(disMissView)]];
        
        if (_contentView == nil) {
                    
            _contentView = [[UIView alloc]initWithFrame:CGRectMake(0, UI_View_Height - ZLTuanNumViewHight, UI_View_Width, ZLBounceViewHight)];
            _contentView.backgroundColor = [UIColor whiteColor];
            [self addSubview:_contentView];
            // 右上角关闭按钮
            UIButton *closeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            closeBtn.frame = CGRectMake(_contentView.width - 20 - 15, 15, 20, 20);
            [closeBtn setImage:[UIImage imageNamed:@"guanbi"] forState:UIControlStateNormal];
            [closeBtn addTarget:self action:@selector(disMissView) forControlEvents:UIControlEventTouchUpInside];
            [_contentView addSubview:closeBtn];
        }
    }

展示从底部向上弹出的UIView（包含遮罩）:

- (void)showInView:(UIView *)view {
        if (!view) {
            return;
        }
        
        [view addSubview:self];
        [view addSubview:_contentView];
        
        [_contentView setFrame:CGRectMake(0, UI_View_Height, UI_View_Width, ZLBounceViewHight)];
        
        [UIView animateWithDuration:0.3 animations:^{
            
            self.alpha = 1.0;
            
            [_contentView setFrame:CGRectMake(0, UI_View_Height - ZLBounceViewHight, UI_View_Width, ZLBounceViewHight)];
            
        } completion:nil];
    }

移除从上向底部弹下去的UIView（包含遮罩）:

- (void)disMissView {
        
        [_contentView setFrame:CGRectMake(0, UI_View_Height - ZLBounceViewHight, UI_View_Width, ZLBounceViewHight)];
        [UIView animateWithDuration:0.3f
                         animations:^{
                             
                             self.alpha = 0.0;
                             
                             [_contentView setFrame:CGRectMake(0, UI_View_Height, UI_View_Width, ZLBounceViewHight)];
                         }
                         completion:^(BOOL finished){
                             
                             [self removeFromSuperview];
                             [_contentView removeFromSuperview];
                             
                         }];
        
    }

.h 文件里露出方法:

//展示从底部向上弹出的UIView（包含遮罩）
    - (void)showInView:(UIView *)view;

现在的效果图:

![576025-751dc87adcc70a9f.png][]

Step2. 在ZLBounceView里添加你需要的视图 View, 这里以我的 tableView 为例

<UITableViewDelegate, UITableViewDataSource>

自定义ZLBounceView:

UITableView *detailTableView = [[UITableView alloc] init];
            detailTableView.backgroundColor = [UIColor clearColor];
            detailTableView.frame = CGRectMake(0, CGRectGetMaxY(partner.frame), UI_View_Width, ZLBounceViewHight - tuan.frame.size.height - partner.frame.size.height - 50 - 20);
            [_contentView addSubview:detailTableView];
            detailTableView.delegate = self;
            detailTableView.dataSource = self;
            self.detailTableView = detailTableView;
            self.detailTableView.separatorStyle = UITableViewCellSeparatorStyleNone;

UITableViewDelegate: 这里用假数据测试

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
        
        static NSString *ID = @"cell";
        
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
        
        if (cell == nil) {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:ID];
            
            cell.backgroundColor = [UIColor clearColor];
            
            cell.textLabel.font = [UIFont systemFontOfSize:13];
            cell.textLabel.textColor = ZLColor(102, 102, 102);
            cell.detailTextLabel.font = [UIFont systemFontOfSize:13];
            cell.detailTextLabel.textColor = ZLColor(102, 102, 102);
        }
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        
        // 假数据
        cell.textLabel.text = [NSString stringWithFormat:@"%ld", (long)indexPath.row];
        cell.detailTextLabel.text = @"已购";
        
        self.total.text = [NSString stringWithFormat:@"总计:%@吨", @"100"];
        
        return cell;
    }

Step3. 使用代理和模型传值

3.1 在当前ViewController中的所需按钮，添加点击事件

[testBtn addTarget:self action:@selector(testBtnClicked) forControlEvents:UIControlEventTouchUpInside];

3.2 添加点击事件则为创建当前弹起View

// 详情展开view
    @property (nonatomic, strong) ZLBounceView *tuanNumView;

- (void)testBtnClicked {
        
        _tuanNumView = [[ZLBounceView alloc]init];
        [_tuanNumView showInView:self.view];
    }

3.3 我这里使用假数据,正常情况则是请求数据或者上个界面的数据用 Model 传过来

_tuanNumView.tuanModel = self.orderModel;

Step4. 加载从底部向上弹起的UIView; 点击一下遮罩或界面上关闭按钮，页面会自动下去（从上向下）

运行效果图如下:

![运行效果.gif][.gif]

#### 三、其他补充 ####

压缩文件截图:

![压缩文件截图.png][.png 1]

目前是项目中直接操作, 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!

#### 注：本文著作权归作者，由demo大师（[http://www.demodashi.com][http_www.demodashi.com]）宣传，拒绝转载，转载需要作者授权 ####

[http_www.demodashi.com_demo_10724.html]: http://www.demodashi.com/demo/10724.html
[.png]: /images/20220531/7100a0a6db324ca7bc9b33d610fb3de9.png
[576025-751dc87adcc70a9f.png]: /images/20220531/bcf25fb37a8d45ebbe8b0c42069671ae.png
[.gif]: /images/20220531/b0e02177e02d426cb7136ec9463973dd.png
[.png 1]: /images/20220531/77cfb934b53840f88d90b44a575ee16f.png
[http_www.demodashi.com]: http://www.demodashi.com/