ios -- UITableView简单的移动删除Demo

当我们点击添加按钮时可以向提示框输入数据添加到表格,当我们点击编辑时我们可以对表格进行移动删除操作

#import "ViewController.h"

@interface ViewController (){

UITableView *_table;

NSMutableArray *marr;

UIButton *leftBtn;

}

@end

@implementation ViewController

//这里主要实现表格的初始化,数组的初始化,左右导航按钮的初始化

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

self.title = @"表格";

//添加编辑按钮

leftBtn = [UIButton buttonWithType:UIButtonTypeCustom];

[leftBtn setTitle:@"编辑" forState:UIControlStateNormal];

[leftBtn setTitle:@"完成" forState:UIControlStateSelected];

leftBtn.frame = CGRectMake(0, 0, 80, 40);

leftBtn.titleLabel.font = [UIFont systemFontOfSize:15];

//标题颜色

[leftBtn setTitleColor:[UIColor blueColor]forState:UIControlStateNormal];

[leftBtn addTarget:self action:@selector(leftBarBtnClicked:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:leftBtn];

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:leftBtn];

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"添加" style:UIBarButtonItemStylePlain target:self action:@selector(rightBarBtnClicked:)];

//创建表格并初始化

_table = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];

_table.delegate = self;

_table.dataSource = self;

//将表格添加到视图

[self.view addSubview:_table];

//初始化三个人名

marr = [NSMutableArray arrayWithObjects:@"王二",@"刘山",@"李四", nil];

}

#pragma mark - 导航按钮点击触发方法

- (void)leftBarBtnClicked:(id)sender {

//设置tableview编辑状态

BOOL flag = !_table.editing;

[_table setEditing:flag animated:YES];

leftBtn.selected = flag;

}

- (void)rightBarBtnClicked:(id)sender {

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"请输入"

message:@"请输入姓名"

delegate:self cancelButtonTitle:@"确定"

otherButtonTitles:@"取消", nil];

[alertView setAlertViewStyle:UIAlertViewStylePlainTextInput];

[alertView show];

}

#pragma mark  获得输入框里的值

- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{

NSString *buttonTitle = [alertView buttonTitleAtIndex:buttonIndex];

if ([buttonTitle isEqualToString:@"确定"]){

UITextField *tf=[alertView textFieldAtIndex:0];//获得输入框

NSString * res = tf.text;//获得值

NSLog(@"%@",res);

[marr addObject:res];

[_table reloadData];

}

}

#pragma mark - 表格方法

#pragma mark 选中行

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

{

// 取消选中状态

[tableView deselectRowAtIndexPath:indexPath animated:YES];

}

//表格有多少行

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

return marr.count;

}

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

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@""];

if (!cell) {

cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@""];

}

//将人名添加到表格

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

//    cell.accessoryType = UITableViewCellAccessoryNone;//cell没有任何的样式

cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;//cell的右边有一个小箭头，距离右边有十几像素；

//    cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;//cell右边有一个蓝色的圆形button；

//    cell.accessoryType = UITableViewCellAccessoryCheckmark;//cell右边的形状是对号；

return cell;

}

#pragma mark - 提交编辑操作

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {

return YES;

}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

{

//只要实现这个方法，就实现了默认滑动删除！！！！！

if (editingStyle != UITableViewCellEditingStyleDelete)

return;

//删除数据模型

[marr removeObjectAtIndex:indexPath.row];

[_table deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationLeft];

}

#pragma mark - 移动操作

- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {

// Return NO if you do not want the item to be re-orderable.

return YES;

}

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {

//起始位置

NSInteger fromRow = fromIndexPath.row;

//终止位置

NSInteger toRow = toIndexPath.row;

NSLog(@"%ld,%ld",fromRow,toRow);

//先取出起始位置的数据

NSString *fromContent = marr[fromRow];

//把起始位置的数据插入终止位置

[marr insertObject:fromContent atIndex:toRow];

NSLog(@"%@",marr);

}

@end