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答案

【问题标题】：How to retrieve checkbox button position change when i am searching in search bar in tableview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
【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]];
    }
}

【问题讨论】：

标签： ios objective-c uitableview

【解决方案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。