当点击UISwitch时选择UITableView的行

Question

我对它们有UITableView和UISwitchs。

当开关处于我想运行的功能。该功能只记录开关是打开还是关闭，以及开关已打开的行。 im的问题在于，当我点击开关时，它不会记录正确的行，除非在点击开关之前点击了该行。

我想我的问题是，单击开关不会选择该行。我怎样才能做到这一点，以便它选择行或我可以将ID添加到交换机？

所以开关ID“1”是“ON”。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 
    static NSString *CellIdentifier = @"POICell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; 


    //set the cell text to the catName 
    cell.textLabel.text = [self.catNames objectAtIndex:[indexPath row]]; 
    //add switch 
    cell.selectionStyle = UITableViewCellSelectionStyleNone; 
    UISwitch *switchView = [[UISwitch alloc] initWithFrame:CGRectZero]; 
    cell.accessoryView = switchView; 
    [switchView setOn:YES animated:NO]; 

    [switchView addTarget:self action:@selector(switchChanged:) forControlEvents:UIControlEventValueChanged]; 
    // Configure the cell... 

    return cell; 
} 

    - (void) switchChanged:(id)sender { 
      NSString *StrCatID =[[NSString alloc]init]; 
      StrCatID = [self.catIDs objectAtIndex:[self.inputTableView indexPathForSelectedRow].row]; 
      UISwitch* switchControl = sender; 
      NSLog(@"The switch for item %@ is %@",StrCatID, switchControl.on ? @"ON" : @"OFF"); 
     } 

Answer 1

问题要找到保存开关

UISwitch *switchInCell = (UISwitch *)sender; 
UITableViewCell * cell = (UITableViewCell*) swithInCell.superview; 

要找出细胞

NSIndexPath * indexpath = [myTableView indexPathForCell:cell] 

的indexpath在细胞中的案例

- (void) switchChanged:(id)sender { 

     UISwitch *switchInCell = (UISwitch *)sender; 
     UITableViewCell * cell = (UITableViewCell*) swithInCell.superview; 
     NSIndexPath * indexpath = [myTableView indexPathForCell:cell] 
     NSString *strCatID =[[NSString alloc]init]; 
     strCatID = [self.catIDs objectAtIndex:indexpath]; 
     NSLog(@"The switch for item %@ is %@",StrCatID, switchInCell.on ? @"ON" : @"OFF"); 
     } 

Answer 2

我认为问题在于您使用dequeueReusableCellWithIdentifier，并且您的所有单元格都具有相同的ID。

Answer 3

一个更好的办法来做到这一点是确定发件人是哪个小区。

- (UITableViewCell *)findCellForView:(UIView *)view 
{ 
    for (; view != nil; view = view.superview) 
     if ([view isKindOfClass:[UITableViewCell class]]) 
      return view; 
    return nil; 
} 

一旦有了这种方法。那么它的替代[self.inputTableView indexPathForSelectedRow]与

UITableViewCell *cell = [self findCellForView:sender]; 
NSIndexPath *indexPath = [self.inputTableView indexPathForCell:cell]; 

Answer 4

应设置IndexPath.row作为标签给每个Switch在cellForRowAtIndexPath方法

switchView.tag= indexPath.row; 

;而当开关值变化]，即可获得该行号

- (void) switchChanged:(UISwitch *)sender { 
    int rowIndex =[sender tag]; 
    //rowIndex you may use it further as you wanted. 

}

Answer 5

我不得不做双倍mySwitch.superview.superview才能获得合适的细胞。

下面是一个例子

- (void)switchToggle:(UISwitch *)mySwitch 
{ 

UITableViewCell *cell = (UITableViewCell *)mySwitch.superview.superview; 
NSIndexPath *indexpath = [self.tableView indexPathForCell:cell]; 
NSLog(@"toggle section %d rowID %d", indexpath.section, indexpath.row); 

} 

Answer 6

#import <UIKit/UIKit.h> 

@interface ViewController : UIViewController<UITableViewDataSource,UITableViewDelegate> 
@property (retain, nonatomic) IBOutlet UITableView *tableview; 

@end 


@interface ViewController() 
{ 
    NSMutableArray *arr; 
    UITableViewCell* aCell; 
    UISwitch *myswitch; 
} 


#import "ViewController.h" 

@interface ViewController() 
{ 
    NSMutableArray *arr; 
    UITableViewCell* aCell; 
    UISwitch *myswitch; 
} 

@end 

@implementation ViewController 
@synthesize tableview; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    arr = [[NSMutableArray alloc]initWithObjects:@"1",@"2",@"3",@"4",@"5", nil]; 
    // Do any additional setup after loading the view, typically from a nib. 
} 

- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section; 
{ 
    return [arr count]; 
} 



- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath; 
{ 
    aCell = [tableview dequeueReusableCellWithIdentifier:@"SwitchCell"]; 

    if(aCell == nil) 
     { 
     aCell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"SwitchCell"]; 
     aCell.textLabel.text = [arr objectAtIndex:indexPath.row]; 
     myswitch = [[UISwitch alloc]initWithFrame:CGRectZero]; 
     aCell.accessoryView = myswitch; 
     [myswitch setOn:YES animated:YES]; 

     } 
    switch (indexPath.row) 

    { 
     case 0: 
     { 
      [myswitch addTarget:self action:@selector(switchChanged:) forControlEvents:UIControlEventValueChanged]; 

     } 
      break; 
     case 1: 
     { 
      [myswitch addTarget:self action:@selector(switchChanged1:) forControlEvents:UIControlEventValueChanged]; 
     } 
      break; 

    } 
    return aCell; 
} 

- (void) switchChanged:(id)sender { 
    UISwitch *aswitch = sender; 

    if (aswitch.on==YES) { 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"hello" message:@"okfine" delegate:self cancelButtonTitle:@"done" otherButtonTitles:nil, nil]; 
     [alert show]; 
    } 
    else 
    { 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"no1" message:@"notfine" delegate:self cancelButtonTitle:@"Returnback" otherButtonTitles:nil, nil]; 
     [alert show]; 

    } 

} 
- (void) switchChanged1:(id)sender { 
    UISwitch *aswitch1 = sender; 

    if (aswitch1.on==YES) { 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"second" message:@"okfine" delegate:self cancelButtonTitle:@"done" otherButtonTitles:nil, nil]; 
     [alert show]; 
    } 
    else 
    { 
     UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"no2" message:@"notfine" delegate:self cancelButtonTitle:@"Returnback" otherButtonTitles:nil, nil]; 
     [alert show]; 

    } 
    } 


- (void)dealloc { 
    [tableview release]; 
    [super dealloc]; 
} 
@end 

Answer 7

您可以检索NSIndexPath因为这是在实现代码如下改变UISwitch。这是任何控制相同的思路已经在这个岗位回答：Detecting which UIButton was pressed in a UITableView

- (void) switchChanged:(id)sender 
{ 
    CGPoint switchPositionPoint = [sender convertPoint:CGPointZero toView:[self tableView]]; 
    NSIndexPath *indexPath = [[self tableView] indexPathForRowAtPoint:switchPositionPoint]; 
} 

这将为iOS7工作，以前我用[发件人上海华]，但现在返回UITableViewCellScrollView内部的UITableViewCellContentView。