IOS学习 UITableView 单元格风格和修改单元格背景

来源：互联网发布：勒索软件下载编辑：程序博客网时间：2024/05/03 10:42

@implementation HomeViewController

- (void)viewDidLoad {

[superviewDidLoad];

// Do any additional setup after loading the view.

self.title =@"UITabelViewCell";

_listArray =@[@"单元格样式",@"定制单元格背景"];

_tableView = [[UITableViewalloc]initWithFrame:self.view.boundsstyle:UITableViewStylePlain];

[self.viewaddSubview:_tableView];

//设置数据源

_tableView.dataSource =self;

//设置委托

_tableView.delegate =self;

}

- (void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

//获得当前表视图选中的单元格

NSIndexPath *indexPath = [_tableViewindexPathForSelectedRow];

//取消当前表视图的选中状态

[_tableViewdeselectRowAtIndexPath:indexPath animated:YES];

}

#pragma mark - UITableView DataSource

//表视图中存在section的个数，默认为1

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

return 1;

}

//section中包含row的数量

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

return_listArray.count;

}

//创建单元格

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

static NSString *cellIndentifier =@"cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIndentifier];

if (cell == nil) {

cell = [[UITableViewCellalloc]initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:cellIndentifier];

}

cell.textLabel.text =_listArray[indexPath.row];

return cell;

}

#pragma mark - UITableView delegate

//当用户选择某一行时

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

DetaiViewController *detaiVC = [[DetaiViewControlleralloc]init];

//获取选择的内容

detaiVC.isBaseCell = indexPath.row ?NO : YES ;

[self.navigationControllerpushViewController:detaiVC animated:YES];

}

#import <UIKit/UIKit.h>

#import "HomeViewController.h"

@interface DetaiViewController :UIViewController<UITableViewDelegate,UITableViewDataSource>{

NSArray *array;

NSMutableArray *tempArray;

NSMutableArray *fontArray;

UITableViewStyle style;

UITableViewCell *cell;

}

@property (nonatomic,assign)BOOL isBaseCell;

@end

@implementation DetaiViewController

- (void)viewDidLoad {

[superviewDidLoad];

// Do any additional setup after loading the view.

array = [UIFontfamilyNames];

if (!self.isBaseCell)

{

self.title =@"Modify Cell BG Type";

style =UITableViewStyleGrouped;

fontArray = [[NSMutableArrayalloc]init];

for (int i =0; i<array.count; i++)

{

//取出字体

NSString *font = array[i];

//将5整除的时候，创建tempArray数据，添加至fontArray中

if (i %5 ==0) {

tempArray = [[NSMutableArrayalloc]init];

[fontArray addObject:tempArray];

}

[tempArray addObject:font];

}

}else

{

self.title =@"Cell Base Type";

style =UITableViewStylePlain;

}

UITableView *detaiTV = [[UITableViewalloc]initWithFrame:self.view.boundsstyle:style];

[self.viewaddSubview:detaiTV];

detaiTV.delegate = self;

detaiTV.dataSource = self;

}

#pragma mark - UITableView DataSource

//表视图中存在section的个数，默认为1

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

if (_isBaseCell) {

return 1; //选中第一行时

}else{

return fontArray.count;}

}

//section中包含row的数量

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

if (_isBaseCell) {

return 4;

}else{

return [fontArray[section]count];}

}

//创建单元格

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

if (_isBaseCell) {

//只有一页，无需重用

cell = [[UITableViewCellalloc]initWithStyle:indexPath.rowreuseIdentifier:nil];

/* 单元格风格 Style : indexPath.row

* 0 UITableViewCellStyleDefault

* 1 UITableViewCellStyleValue1

* 2 UITableViewCellStyleValue2

* 3 UITableViewCellStyleSubtitle */

switch (indexPath.row) {

case 0:

cell.textLabel.text =@"这是一个默认的风格";

cell.detailTextLabel.text =@"这是副标题";//不显示

cell.imageView.image = [UIImageimageNamed:@"photo"];

cell.accessoryType =UITableViewCellAccessoryDisclosureIndicator; //箭头

break;

case 1:

cell.textLabel.text =@"这是一个Value1的风格";

cell.detailTextLabel.text =@"这是副标题";

cell.imageView.image = [UIImageimageNamed:@"photo"];

cell.accessoryType =UITableViewCellAccessoryCheckmark; //打勾

break;

case 2:

cell.textLabel.text =@"这是一个Value2的风格";

cell.detailTextLabel.text =@"这是副标题";

cell.imageView.image = [UIImageimageNamed:@"photo"]; //不显示

cell.accessoryType =UITableViewCellAccessoryDetailDisclosureButton; //按钮+箭头

break;

case 3:

cell.textLabel.text =@"这是一个subTitle的风格"; //副标题在下方

cell.detailTextLabel.text =@"这是副标题";

cell.imageView.image = [UIImageimageNamed:@"photo"];

cell.accessoryType =UITableViewCellAccessoryDetailButton;//按钮

break;

default:

break;

}

}else

{

static NSString *cellIndentifier =@"cell";

cell = [tableView dequeueReusableCellWithIdentifier:cellIndentifier];

if (cell ==nil)

{

cell = [[UITableViewCellalloc]initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:cellIndentifier];

}

cell.textLabel.text = [[fontArrayobjectAtIndex:indexPath.section]objectAtIndex:indexPath.row];

//设置选中背景的风格

// cell.selectionStyle = UITableViewCellSelectionStyleBlue;

//设置背景图片

UIImageView *imageView = [[UIImageViewalloc]init];

imageView.image = [UIImageimageNamed:@"bg_balance"];

cell.backgroundView = imageView;

UIImageView *selectionView = [[UIImageViewalloc]init];

selectionView.backgroundColor = [UIColoryellowColor];

cell.selectedBackgroundView = selectionView;

}

return cell;

}

//设置section头部视图的title 此方法与自定义的头部视图不能并存

- (nullable NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{

if (_isBaseCell) {

return nil;

}else{

NSString *title = [NSStringstringWithFormat:@"第%ld个section",(long)section+1];

return title;}

}

#pragma mark - UITableView Delegate

//设置section头部的高度

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{

if (_isBaseCell) {

return 0;

}return 25;

}

0 0