我有一個UITableview從parse.com加載數據並顯示它。我想,這樣當用戶從parse.com會刪除它會刪除其表視圖的項目這是編輯從UITableView刪除項目 - 從Parse.com獲取數據
我用我自己的tableview和使用parseSimpleCell.h,.M自定義單元格
這裏是我的tableview的.h和.m文件
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#import "ParseExampleCell.h"
@interface FavoritesTableViewController : UITableViewController <UITableViewDelegate,UITableViewDataSource> {
NSArray *itemsArray;
}
@property (weak, nonatomic) IBOutlet UITableView *favItemsTable;
@end
這裏是.m文件
#import "FavoritesTableViewController.h"
@interface FavoritesTableViewController()
@end
@implementation FavoritesTableViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self performSelector:@selector(retrieveFromParse)];
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void) retrieveFromParse {
PFUser *currentUser = [PFUser currentUser];
PFQuery *query = [PFQuery queryWithClassName:@"UserFavourite"];
[query whereKey:@"userIdString" equalTo:currentUser.objectId];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
itemsArray = [[NSArray alloc] initWithArray:objects];
}
[_favItemsTable reloadData];
}];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return itemsArray.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
ParseExampleCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
PFObject *tempObject = [itemsArray objectAtIndex:indexPath.row];
cell.cellTitle.text = [tempObject objectForKey:@"item"];
cell.tintColor = [UIColor redColor];
return cell;
}
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the specified item to be editable.
return YES;
}
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
}
@end
我需要用這種方法- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
什麼去幫助
我已經看過其他問題,但看到變量對象,這是得到前eh retrieveFromParse方法不可用在commitEditing樣式方法?
我已經試過這樣的事情
if (editingStyle == UITableViewCellEditingStyleDelete) {
PFObject *object = [self.objects objectAtIndex:indexPath.row];
[object deleteInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
[self loadObjects];
}];
}
不過是說對象沒有找到
感謝您的幫助提前