TableViewCellEdit

//

//  RootViewController.m

 

#import "RootViewController.h"

#import "Student.h"

#import "MyTableViewCell.h"

#import "SecTableViewCell.h"

#import "AjustFrame.h"

 

@interfaceRootViewController()<UITableViewDataSource,UITableViewDelegate>

 

@property (nonatomic,strong)UITableView*tableView;

@property (nonatomic,strong)NSMutableArray*dataArr;

 

@end

 

@implementationRootViewController

 

- (void)viewDidLoad {

   [superviewDidLoad];

 

self.tableView =[[UITableViewalloc]initWithFrame:[UIScreenmainScreen].boundsstyle:UITableViewStyleGrouped];

 

self.tableView.dataSource = self;

self.tableView.delegate = self;

   [self.viewaddSubview:self.tableView];

 

}

    // 懒加载即重写了dataArr属性的getter方法。

   //懒加载，只有调用了getter方法的时候才会加载数据，能够减少viewDidLoad的负担，减少内存消耗

- (NSMutableArray *)dataArr{

if (_dataArr == nil) {

       // 创建数组，用来存储学生对象

self.dataArr = [NSMutableArray array];

       // 获取Students.plist文件

NSString *file =[[NSBundlemainBundle]pathForResource:@"Students"ofType:@"plist"];

       // 获取文件中的数据

NSMutableArray *arr =[NSMutableArrayarrayWithContentsOfFile:file];

       // 将数据和model类联系起来

       // 数据解析

for (NSDictionary *dic in arr) {

           // 定义一个Student对象

           Student *stu = [[Student alloc]init];

           // 将学生与字典对应

           [stusetValuesForKeysWithDictionary:dic];

           // 将学生存进数组

           [self.dataArraddObject:stu];

       }

    }

return _dataArr;

}

 

     //  获取数据，通过 [selfgetData] 使用

//- (void)getData{

//    // 创建数组

//   self.dataArr = [NSMutableArray array];

//   // 获取Students.plist文件

//   NSString *file = [[NSBundlemainBundle]pathForResource:@"Students"ofType:@"plist"];

//   // 获取文件中的数据

//   NSMutableArray *arr = [NSMutableArrayarrayWithContentsOfFile:file];

//   // 将数据和model类联系起来

//   // 数据解析

//   for (NSDictionary *dic in arr) {

//       // 定义一个Student对象

//       Student *stu = [[Student alloc]init];

//       // 将学生与字典对应

//       [stusetValuesForKeysWithDictionary:dic];

//       // 将学生存进数组

//       [self.dataArraddObject:stu];

//   }

//   

//}

 

 

- (NSInteger)tableView:(UITableView*)tableViewnumberOfRowsInSection:(NSInteger)section{

return 7;

}

       // 从重用列表中获取cell或者重新创建一个cell

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

   // 首先得到学生

   Student *stu = self.dataArr[indexPath.row];

   // 判断学生性别决定使用哪种自定义cell

   if ([stu.sexisEqualToString:@"男"]) {

MyTableViewCell *cell =[tableViewdequeueReusableCellWithIdentifier:@"reuse"];

if (cell == nil) {

cell =[[MyTableViewCellalloc]initWithStyle:UITableViewCellStyleValue1reuseIdentifier:@"reuse"];

       }

       Student *student = self.dataArr[indexPath.row];

cell.stu = student;

return cell;

}else{

SecTableViewCell *cell =[tableViewdequeueReusableCellWithIdentifier:@"log"];

if (cell == nil) {

cell =[[SecTableViewCellalloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"log"];

       }

       Student *student = self.dataArr[indexPath.row];

cell.student = student;

return cell;

    }

}

 

     // 计算cell的高度

- (CGFloat)tableView:(UITableView*)tableViewheightForRowAtIndexPath:(NSIndexPath *)indexPath{

//    // 得出对应单元格的学生

//   Student *stu = self.dataArr[indexPath.row];

//   // 得出字符串的文本属性

//   NSDictionary *dic = @{NSFontAttributeName:[UIFont systemFontOfSize:17]};

//    // 计算字符串所占高度(label的高度)

//   CGFloat height = [stu.introduceboundingRectWithSize:CGSizeMake(200,1000)options:NSStringDrawingUsesLineFragmentOriginattributes:diccontext:nil].size.height;

//   // cell的高度就是字符串的高度加上label的高度

//   return height + 130;

 

        // 自适应高度，根据cell中内容的多少设置高度

      // 获取学生对象

    Student *stu = self.dataArr[indexPath.row];

      // 计算学生对象中字符串stu.introduce的内容高度

CGFloat height =[AjustFrameheightForString:stu.introduce width:200 Font:[UIFontsystemFontOfSize:17]];

return height + 110;

}

@end

 

 

 

 

 

//

//  SecTableViewCell.m

#import "SecTableViewCell.h"

#import "AjustFrame.h"

 

@implementationSecTableViewCell

 

- (void)awakeFromNib {

   // Initialization code

}

 

- (void)setSelected:(BOOL)selected animated:(BOOL)animated{

   [supersetSelected:selectedanimated:animated];

 

 

}

 

    // 自定义的cell

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

self = [superinitWithStyle:stylereuseIdentifier:reuseIdentifier];

if (self) {

self.imageV =[[UIImageViewalloc]initWithFrame:CGRectMake(250, 5, 150, 180)];

       [self.contentViewaddSubview:self.imageV];

 

self.nameLabel =[[UILabelalloc]initWithFrame:CGRectMake(5, 5, 200, 30)];

       [self.contentViewaddSubview:self.nameLabel];

 

self.phoneNumberLabel =[[UILabelalloc]initWithFrame:CGRectMake(5, 40, 200, 30)];

       [self.contentViewaddSubview:self.phoneNumberLabel];

 

self.sexLabel =[[UILabelalloc]initWithFrame:CGRectMake(5, 75, 200, 30)];

       [self.contentViewaddSubview:self.sexLabel];

 

self.introduceLabel =[[UILabelalloc]initWithFrame:CGRectMake(5, 110, 200, 30)];

self.introduceLabel.numberOfLines = 0;

       [self.contentViewaddSubview:self.introduceLabel];

 

    }

return self;

}

 

- (void)setStudent:(Student *)student{

self.imageV.image =[UIImageimageNamed:student.icon];

self.nameLabel.text = student.name;

self.phoneNumberLabel.text =student.phoneNumber;

self.sexLabel.text = student.sex;

self.introduceLabel.text =student.introduce;

 

      // 获取introduceLabel中字符串的高度

CGFloat height =[AjustFrameheightForString:self.introduceLabel.text width:200Font:self.introduceLabel.font];

   // 重新设置introducelabel的大小

self.introduceLabel.frame = CGRectMake(5,110, 200, height);

 

}

 

@end

 

 

 

 

//

//  MyTableViewCell.m

#import "MyTableViewCell.h"

#import "AjustFrame.h"

 

@implementationMyTableViewCell

 

- (void)awakeFromNib {

 

}

 

- (void)setSelected:(BOOL)selectedanimated:(BOOL)animated {

   [supersetSelected:selectedanimated:animated];

 

 

}

 

//自定义视图,重新实现初始化方法

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

self = [super initWithStyle:stylereuseIdentifier:reuseIdentifier];

if (self) {

self.imageV =[[UIImageViewalloc]initWithFrame:CGRectMake(5, 5, 120, 150)];

       [self.contentViewaddSubview:self.imageV];

 

 

self.nameL =[[UILabelalloc]initWithFrame:CGRectMake(130, 5, 200, 30)];

       [self.contentViewaddSubview:self.nameL];

 

 

self.sexL =[[UILabelalloc]initWithFrame:CGRectMake(130, 40, 200, 30)];

       [self.contentViewaddSubview:self.sexL];

 

 

self.phoneNumberL =[[UILabelalloc]initWithFrame:CGRectMake(130, 75, 200, 30)];

        [self.contentViewaddSubview:self.phoneNumberL];

 

 

self.introduceL =[[UILabelalloc]initWithFrame:CGRectMake(130, 110, 250, 60)];

self.introduceL.numberOfLines = 0;

       [self.contentViewaddSubview:self.introduceL];

 

    }

return self;

}

 

   //为控件内容赋值

- (void)setStu:(Student *)stu{

self.imageV.image =[UIImageimageNamed:stu.icon];

self.nameL.text = stu.name;

self.phoneNumberL.text = stu.phoneNumber;

self.sexL.text = stu.sex;

self.introduceL.text = stu.introduce;

//   // 控件的大小应该在拿到控件的数据之后确定

//   // 求出文本高度

//    // 求字符串的字体大小

//   NSDictionary *dic = @{NSFontAttributeName:[UIFont systemFontOfSize:17]};

//   // 求出所占高度

//   CGFloat height =[self.introduceL.textboundingRectWithSize:CGSizeMake(200, 1000)options:NSStringDrawingUsesLineFragmentOriginattributes:diccontext:nil].size.height;

//   // 重新设置label高度

//   self.introduceL.frame = CGRectMake(130, 110, 200, height);

 

     // 优化的代码

CGFloat height =[AjustFrameheightForString:self.introduceL.text width:200Font:self.introduceL.font];

self.introduceL.frame = CGRectMake(130,110, 250, height);

}

 

@end

 

 

 

 

 

 

//声明一个类，专门用来计算字符串的高度，从而使cell能够根据内容的多少来计算高度。

// AjustFrame.m

 

#import "AjustFrame.h"

 

@implementationAjustFrame

 

    // 用来计算字符串的高度

+ (CGFloat)heightForString:(NSString *)textwidth:(CGFloat)width Font:(UIFont *)font{

CGFloat height = [textboundingRectWithSize:CGSizeMake(width, 1000)options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:font}context:nil].size.height;

 

return height;

}

 

@end