iOS开发学习之#表视图#（2）添加行

继续上篇学到的删除行，有删除就有添加：添加行我们用

- (void)insertRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation

其中(NSArray *)indexPaths用于识别表视图中得行，(UITableViewRowAnimation)animation用来指定动画

核心代码如下：

//设置表单元的编辑风格
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
    returnUITableViewCellEditingStyleInsert;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
    //判断表单元的编辑风格
    if (editingStyle ==UITableViewCellEditingStyleDelete) {
        [aremoveObjectAtIndex:indexPath.row];
        [tvdeleteRowsAtIndexPaths:[NSArrayarrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
    }
    elseif (editingStyle == UITableViewCellEditingStyleInsert){
        i =i+1;
        NSInteger row = [indexPathrow];
        NSArray *insert = [NSArrayarrayWithObjects:indexPath, nil];
        NSString *str = [NSStringstringWithFormat:@"%i",i];
        [ainsertObject:str atIndex:row];
        [tvinsertRowsAtIndexPaths:insert withRowAnimation:UITableViewRowAnimationRight];

    }
}

和上篇一样要遵守的协议：

@interface ViewController :UIViewController<UITableViewDataSource,UITableViewDelegate>{
    IBOutletUITableView *tv;
    NSMutableArray *a;
    NSArray *b;
    int i;
}