IOS之表视图单元格删除、移动及插入
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1.实现单元格的删除，实现效果如下
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- (void)viewDidLoad{ [super viewDidLoad]; //设置导航栏 self.editButtonItem.title = @"编辑"; self.navigation.rightBarButtonItem = self.editButtonItem; [self initTableViewData];// Do any additional setup after loading the view.}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}-(void)initTableViewData{ NSBundle *bundle = [NSBundle mainBundle]; NSString *plistPath = [bundle pathForResource:@"user_head" ofType:@"plist"]; dataArr = [[NSMutableArray alloc] initWithContentsOfFile:plistPath];}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return [dataArr count];}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString *CellIdentifier = @"tableCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; NSUInteger row = [indexPath row]; NSDictionary *rowDict = [dataArr objectAtIndex:row]; cell.textLabel.text = [rowDict objectForKey:@"itemName"]; NSLog(@"cell.label.text = %@",[rowDict objectForKey:@"itemName"]); NSString *imagePath = [rowDict objectForKey:@"itemImagePath"]; cell.imageView.image = [UIImage imageNamed:imagePath]; NSLog(@"cell.image.image = %@",imagePath); cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell;}//选中Cell响应事件- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ [tableView deselectRowAtIndexPath:indexPath animated:YES];//选中后的反显颜色即刻消失 NSUInteger row = [indexPath row]; NSDictionary *rowDict = [dataArr objectAtIndex:row]; NSString *userName = [rowDict objectForKey:@"itemName"]; NSLog(@"userName=%@",userName);}//返回编辑状态的style- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{ //UITableViewCellEditingStyleInsert// return UITableViewCellEditingStyleNone; return UITableViewCellEditingStyleDelete;}//完成编辑的触发事件- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyleforRowAtIndexPath:(NSIndexPath *)indexPath{ if (editingStyle == UITableViewCellEditingStyleDelete) { [dataArr removeObjectAtIndex: indexPath.row]; // [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] // withRowAnimation:UITableViewRowAnimationFade]; [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; [tableView reloadData]; } }//UIViewController生命周期方法，用于响应视图编辑状态变化- (void)setEditing:(BOOL)editing animated:(BOOL)animated { [super setEditing:editing animated:animated]; [self.tableView setEditing:editing animated:YES]; if (self.editing) { self.editButtonItem.title = @"完成"; } else { self.editButtonItem.title = @"编辑"; }}@end?2.移动单元格
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//完成移动的触发事件，不添加该方法不实现移动功能- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath*)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{ NSDictionary *item = [dataArr objectAtIndex:sourceIndexPath.row]; [dataArr removeObjectAtIndex:sourceIndexPath.row]; [dataArr insertObject:item atIndex:destinationIndexPath.row];}?3.添加单元格。下面是自定义触发事件，即单击左下角的add按钮
- (IBAction)addistItem:(UIBarButtonItem *)sender { AppUtils *appUtils = [AppUtils alloc]; //需要先初始化一个UIAlertView UIAlertView *alert = [UIAlertView alloc]; [appUtils showInputDialogWithTitle:@"add" message:@"please input new user name:" toAlertView:alert confirmAction:(^{ //得到输入框 UITextField *textField=[alert textFieldAtIndex:0];// 不要写成NSMutableDictionary *newItem = [NSDictionary dictionary]; NSMutableDictionary *newItem = [NSMutableDictionary dictionary]; [newItem setObject:textField.text forKey:@"itemName"]; [newItem setObject:@"1.jpeg" forKey:@"itemImagePath"]; [dataArr addObject:newItem]; [self.tableView reloadData]; })];}?4.附上·AppUtils类
#import "AppUtils.h"#include "RIButtonItem.h"#include "UIAlertView+Blocks.h"@implementation AppUtils//弹出警告框，并实现警告框按钮的触发事件- (void)showInputDialogWithTitle:(NSString *)title message:(NSString *)message toAlertView:(UIAlertView*) alert confirmAction:(void(^)(void))action{ RIButtonItem* cancelItem = [RIButtonItem item]; cancelItem.label = @"No"; cancelItem.action = ^ { //为NO时的处理 UITextField *tf=[alert textFieldAtIndex:0]; NSLog(@"UITextField=%@",tf.text); }; RIButtonItem* confirmItem = [RIButtonItem item]; confirmItem.label = @"Yes";// confirmItem.action = action; alert = [alert initWithTitle:title message:message cancelButtonItem:cancelItem otherButtonItems:confirmItem, nil]; alert.alertViewStyle = UIAlertViewStylePlainTextInput; confirmItem.action = action; [alert show];}@end?
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