当我在表格视图的搜索栏中搜索时如何检索复选框按钮位置更改

Posted 2023-03-12

【中文标题】当我在表格视图的搜索栏中搜索时如何检索复选框按钮位置更改

【英文标题】：How to retrieve checkbox button position change when i am searching in search bar in tableview

【发布时间】：2018-10-16 12:01:22

【问题描述】：

for(int i=0; i<[devices count]; i++)  
    [_cellDataArray addObject:@"Uncheck"];


-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText 
    if(searchText.length==0) 
        isfilert=false; 
    
    else  
        isfilert=true;
        filterarray=[[NSMutableArray alloc]init];
        for ( NSString * str in devices) 
            NSRange rangename = [str rangeOfString:searchText options:NSCaseInsensitiveSearch];
            if (rangename.location == !NSNotFound)  
                //  filterarray=[[NSMutableArray alloc]init];
                [filterarray addObject:str]; 
            
        
    
    [self.tableView reloadData];  


 - (void)didReceiveMemoryWarning 
     [super didReceiveMemoryWarning];
 

#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
    return 1   


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
    if (isfilert) 
        return [filterarray count]; 
     
    else 
        return [devices count]; 
    


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];
    UILabel *lab1 = (UILabel *)[cell viewWithTag:100];

    UIButton *button = (UIButton *)[cell viewWithTag:90];
    if (isfilert) 
        lab1.text = filterarray[indexPath.row];
     
    else 
        lab1.text = devices[indexPath.row];
    

    if([[_cellDataArray objectAtIndex:indexPath.row] isEqualToString:@"Uncheck"]) 
        [button setImage:[UIImage imageNamed:@"checked-symbol1.png"] forState:UIControlStateNormal];
     
    else 
        [button setImage:[UIImage imageNamed:@"redcircle.png"] forState:UIControlStateNormal];
    
    [button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
    return cell;


-(void)buttonClicked:(id)sender 
    CGPoint touchPoint = [sender convertPoint:CGPointZero toView:self.tableView];
    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:touchPoint];

    UIButton *button = (UIButton *)sender;

    if([[_cellDataArray objectAtIndex:indexPath.row] isEqualToString:@"Uncheck"]) 
        [button setImage:[UIImage imageNamed:@"redcircle.png"] forState:UIControlStateNormal];
        [_cellDataArray replaceObjectAtIndex:indexPath.row withObject:@"Check"];
        [_array2 addObject:[devices objectAtIndex:indexPath.row]];
    
    else 
        [button setImage:[UIImage imageNamed:@"checked-symbol1.png"] forState:UIControlStateNormal];
        [_cellDataArray replaceObjectAtIndex:indexPath.row withObject:@"Uncheck"];

        [_array2 removeObject:[devices objectAtIndex:indexPath.row]];
    

【参考方案1】：

在表格视图中，您根据搜索重新调整了两个数组。取而代之的是两个数组，一个是主数组，第二个是 tempArray，并且仅在表视图中返回 tempArray。首先将所有主数组值添加到 tempArray。接下来，如果有任何搜索，则更改 tempArray。把它 tempArray 作为 NSMutableArray。

接下来不要保留 indexPath 行以供选择。因为如果数组改变它可能会改变。所以保持objectId的选择。如果您的对象没有任何 ID。然后创建您的自定义对象并将您的原始对象更改为自定义对象。在自定义对象中设置 id 值。

【讨论】：

你能分享你的代码吗？先生。