iOS随笔小记--点击row隐藏或显示内容

一 、废话不多说，先看效果吧😂 。。。

1.1 效果图如下：

显示内容.png 隐藏内容.png

1.2 文件目录如下： 一个视图控制器，一个自定义cell

文件目录.png

1.3 自定义cell的样式如下

自定义cell的样式.png

二 、代码部分

2.1 protocol.m文件的内容

2.1.1 先定义两个数组

static NSString * identifier = @"protocolCell";
@interface protocolVC ()<UITableViewDelegate,UITableViewDataSource>
{
      NSArray * headerViewTitleArray ;  //存放隐形内容时的title的内容
      NSArray * dataArray;              //存放显示内容时的content数据
}
 //dataDic记录点击的row是打开还是隐藏内容的
@property (strong, nonatomic) NSMutableDictionary * dataDic; 

2.1.2 在viewDidLoad里面进行初始化

[self.protocolTableView registerNib:[UINib nibWithNibName:@"protocolTableViewCell" bundle:nil] forCellReuseIdentifier:identifier];
self.protocolTableView.tableFooterView= [[UIView alloc] initWithFrame:CGRectZero];
self.dataDic = [NSMutableDictionary dictionary];

//因为语言国际化，所以我是用的是NSLocalizedString(@"termsTitleOne", nil)这种格式
if ([self.protocolName isEqualToString:NSLocalizedString(@"Terms & Conditions", nil)]) {
    headerViewTitleArray = @[NSLocalizedString(@"termsTitleOne", nil), NSLocalizedString(@"termsTitleTwo", nil),NSLocalizedString(@"termsTitleThree", nil),NSLocalizedString(@"termsTitleFour", nil),NSLocalizedString(@"termsTitleFive", nil),NSLocalizedString(@"termsTitleSix", nil),NSLocalizedString(@"termsTitleSeven", nil), NSLocalizedString(@"termsTitleEight", nil),NSLocalizedString(@"termsTitleNine", nil),NSLocalizedString(@"termsTitleTen", nil),NSLocalizedString(@"termsTitleEleven", nil),NSLocalizedString(@"termsTitleTwelve", nil)];
    
    dataArray = @[NSLocalizedString(@"termsOne", nil), NSLocalizedString(@"termsTwo", nil),NSLocalizedString(@"termsThree", nil),NSLocalizedString(@"termsFour", nil),NSLocalizedString(@"termsFive", nil),NSLocalizedString(@"termsSix", nil),NSLocalizedString(@"termsSeven", nil), NSLocalizedString(@"termsEight", nil),NSLocalizedString(@"termsNine", nil),NSLocalizedString(@"termsTen", nil),NSLocalizedString(@"termsEleven", nil),NSLocalizedString(@"termsTwelve", nil)];
    
} else if ([self.protocolName isEqualToString:NSLocalizedString(@"Privacy Notice", nil)]){

    headerViewTitleArray = @[NSLocalizedString(@"privacyTitleOne", nil), NSLocalizedString(@"privacyTitleTwo", nil),NSLocalizedString(@"privacyTitleThree", nil),NSLocalizedString(@"privacyTitleFour", nil),NSLocalizedString(@"privacyTitleFive", nil),NSLocalizedString(@"privacyTitleSix", nil),NSLocalizedString(@"privacyTitleSeven", nil), NSLocalizedString(@"privacyTitleEight", nil),NSLocalizedString(@"privacyTitleNine", nil),NSLocalizedString(@"privacyTitleTen", nil),NSLocalizedString(@"privacyTitleEleven", nil),NSLocalizedString(@"privacyTitleTwelve", nil)];
    
    dataArray = @[NSLocalizedString(@"privacyOne", nil), NSLocalizedString(@"privacyTwo", nil),NSLocalizedString(@"privacyThree", nil),NSLocalizedString(@"privacyFour", nil),NSLocalizedString(@"privacyFive", nil),NSLocalizedString(@"privacySix", nil),NSLocalizedString(@"privacySeven", nil), NSLocalizedString(@"privacyEight", nil),NSLocalizedString(@"privacyNine", nil),NSLocalizedString(@"privacyTen", nil),NSLocalizedString(@"privacyEleven", nil),NSLocalizedString(@"privacyTwelve", nil)];
}

2.1.3 TableView代理方法的实现

#pragma mark -- UIWebViewDelegate
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return dataArray.count;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    protocolTableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:identifier];

    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    if ([[self.dataDic valueForKey:[NSString stringWithFormat:@"%zd",indexPath.row]] isEqualToString:@"0"]){
        [cell.protocoTitleButton setTitle:@"-" forState:UIControlStateNormal];
        [cell setTitleValueForCell:headerViewTitleArray[indexPath.row] andContent:dataArray[indexPath.row]];
    
    } else {
        [cell.protocoTitleButton setTitle:@"+" forState:UIControlStateNormal];
         [cell setTitleValueForCell:headerViewTitleArray[indexPath.row] andContent:nil];
    }

    cell.protocoTitleButton.tag = indexPath.row + 1000;
    [cell.protocoTitleButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
    return cell;
}

- (void)buttonAction:(UIButton *)sender{
    NSInteger temp = sender.tag - 1000;
    // temp === 》section
    if ([[self.dataDic valueForKey:[NSString stringWithFormat:@"%zd",temp]] isEqualToString:@"0"] ){
    
        [self.dataDic setObject:@"1" forKey:[NSString stringWithFormat:@"%zd",temp]];

    } else {
    
        [self.dataDic setObject:@"0" forKey:[NSString stringWithFormat:@"%zd",temp]];
    }
    // reload section
    [self.protocolTableView reloadData];
}

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(nonnull NSIndexPath *)indexPath{

    if ([[self.dataDic valueForKey:[NSString stringWithFormat:@"%zd",indexPath.row]] isEqualToString:@"0"]){
    
        return [self getHeiahtBydescritonStr:headerViewTitleArray[indexPath.row] andFont:k_Helvetica_16 andWidth:85] + [self getHeiahtBydescritonStr:dataArray[indexPath.row]  andFont:k_Helvetica_14 andWidth:55] + 50;
    
    } else {
    
        return [self getHeiahtBydescritonStr:headerViewTitleArray[indexPath.row] andFont:k_Helvetica_16 andWidth:85] + 40;
    }

}

- (CGFloat)getHeiahtBydescritonStr:(NSString *)descritonStr  andFont:(UIFont *)font  andWidth:(CGFloat)width{
    CGRect frame = [descritonStr boundingRectWithSize:CGSizeMake([UIScreen mainScreen].bounds.size.width - width, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:font} context:nil] ;
    return frame.size.height;
}

2.2 protocolTableViewCell.h文件的内容

2.2.1 定义从xib拉的控件和初始化方法

定义从xib拉的控件和初始化方法.png

2.3 protocolTableViewCell.m文件的内容

2.3.1 初始化方法

- (void)awakeFromNib {
    [super awakeFromNib];
    // Initialization code

    self.protocoBackView.layer.borderColor = k_fontColor.CGColor;
    self.protocoBackView.layer.borderWidth = 0.5;
}

-(void) setTitleValueForCell:(NSString *)title andContent:(NSString *)content {

    self.heightOfTitleLabel.constant = [self getHeiahtBydescritonStr:title andFont:k_Helvetica_16 andWidth:85];
    if (![content isEqualToString:@""]) {
        self.protocoContentLabel.hidden = NO;
        self.heightOfContentLabel.constant = [self getHeiahtBydescritonStr:content andFont:k_Helvetica_14 andWidth:55]+ 20;
    } else {
        self.protocoContentLabel.hidden = YES;
    }
    self.protocoTitleLabel.font = k_Helvetica_16;
    self.protocoContentLabel.font = k_Helvetica_14;
    self.protocoTitleLabel.textColor = [[UIColor blackColor] colorWithAlphaComponent:0.8];
    self.protocoContentLabel.textColor = k_protocol_color;
    self.protocoTitleLabel.text = title;
    self.protocoContentLabel.text = content;
}    

- (CGFloat) getHeiahtBydescritonStr:(NSString *)descritonStr andFont:(UIFont *)font andWidth:(CGFloat)width{
    CGRect frame = [descritonStr boundingRectWithSize:CGSizeMake([UIScreen mainScreen].bounds.size.width - width, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:font} context:nil] ;
    return frame.size.height;
}

- (instancetype) initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{

    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
    
    }
    return self;
}

============OK============

大功告成啦~~~~~