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为什么在目标 c 中重新加载表视图时选择的值会取消选择

[英]Why Selected value get deselect when I reload table view in objective c

 原文  2017-01-07 10:37:18  0   3    ios/ objective-c/ uitableview

问题描述

我是 iOS 新手，在自定义表格视图中遇到问题。 我正在使用自定义表格视图单元格

AuditTableviewcell.h
{
    NSString *ActualString;
    IBOutlet UIButton *infobtn;
    UITextField * alertTextField;
    UITextView *textView1;

    UILabel *lbl;
}

-(IBAction)passbtnClick:(id)sender;
-(IBAction)failbtnClick:(id)sender;
-(IBAction)wipbtnClick:(id)sender;
-(IBAction)nabtnClick:(id)sender;
-(IBAction)infobtnClick:(id)sender;

@property(nonatomic,strong)IBOutlet UILabel *audittitlelbl;
@property(nonatomic,strong)IBOutlet UILabel *listlbl;

@property(nonatomic,strong) IBOutlet UILabel *passlbl;
@property(nonatomic,strong) IBOutlet UILabel *faillbl;
@property(nonatomic,strong) IBOutlet UILabel *warninglbl;
@property(nonatomic,strong) IBOutlet UILabel *nalbl;
@property(nonatomic,strong) IBOutlet UILabel *actuallbl;
@property(nonatomic,strong) IBOutlet UILabel *nameidlbl;
@property(nonatomic,strong) IBOutlet UILabel *remarklbl;

@property(nonatomic,strong) IBOutlet UIButton *passbtn;
@property(nonatomic,strong) IBOutlet UIButton *failbtn;
@property(nonatomic,strong) IBOutlet UIButton *wipbtn;
@property(nonatomic,strong) IBOutlet UIButton *nabtn;

AuditTableviewcell.m

@synthesize audittitlelbl,listlbl,passbtn,nabtn,passlbl,faillbl,warninglbl,nalbl,actuallbl,failbtn,wipbtn,nameidlbl;
- (void)awakeFromNib {

    passbtn.layer.cornerRadius = passbtn.bounds.size.width / 2.0;// this value vary as per your desire
    passbtn.clipsToBounds = YES;

    failbtn.layer.cornerRadius = failbtn.bounds.size.width / 2.0;// this value vary as per your desire
    failbtn.clipsToBounds = YES;

    wipbtn.layer.cornerRadius = wipbtn.bounds.size.width / 2.0;// this value vary as per your desire
    wipbtn.clipsToBounds = YES;

    nabtn.layer.cornerRadius = nabtn.bounds.size.width / 2.0;// this value vary as per your desire
    nabtn.clipsToBounds = YES;

    infobtn.layer.cornerRadius = infobtn.bounds.size.width / 2.0;// this value vary as per your desire
    [[infobtn layer] setBorderWidth:1.0f];
    infobtn.layer.borderColor =[[UIColor blueColor] CGColor];
    infobtn.clipsToBounds = YES;

    passlbl.hidden=YES;
    faillbl.hidden=YES;
    warninglbl.hidden=YES;
    nalbl.hidden=YES;
    actuallbl.hidden=YES;
    nameidlbl.hidden=YES;

    // Initialization code
}
- (void)textViewDidEndEditing:(UITextView *)theTextView
{
    if (![textView1 hasText]) {
        lbl.hidden = NO;
    }
}

- (void) textViewDidChange:(UITextView *)textView
{
    if(![textView hasText]) {
        lbl.hidden = NO;
    }
    else{
        lbl.hidden = YES;
    }  
}


-(IBAction)passbtnClick:(id)sender
{
    passbtn.backgroundColor=[UIColor greenColor];
    failbtn.backgroundColor=[UIColor lightGrayColor];
    wipbtn.backgroundColor=[UIColor lightGrayColor];
    nabtn.backgroundColor=[UIColor lightGrayColor];

    actuallbl.text=passlbl.text;
    ActualString=actuallbl.text;
}
-(IBAction)failbtnClick:(id)sender
{
    passbtn.backgroundColor=[UIColor lightGrayColor];
    failbtn.backgroundColor=[UIColor redColor];
    wipbtn.backgroundColor=[UIColor lightGrayColor];
    nabtn.backgroundColor=[UIColor lightGrayColor];

    actuallbl.text=faillbl.text;
    ActualString=actuallbl.text;
    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    [defaults setObject:ActualString forKey:@"ActualStringCustom"];

    UIAlertView *testAlert = [[UIAlertView alloc] initWithTitle:@"Fail!"
                                                        message:audittitlelbl.text
                                                       delegate:self
                                              cancelButtonTitle:nil
                                              otherButtonTitles:@"Done", nil];
    textView1 = [UITextView new];
    lbl = [[UILabel alloc] initWithFrame:CGRectMake(10.0, 0.0,90.0, 34.0)];


    [lbl setText:@"Enter Remark"];
    [lbl setFont:[UIFont systemFontOfSize:12]];
    [lbl setBackgroundColor:[UIColor clearColor]];
    [lbl setTextColor:[UIColor lightGrayColor]];
    textView1.delegate = self;

    [textView1 addSubview:lbl];

    [testAlert setValue: textView1 forKey:@"accessoryView"];

    [testAlert show];

}
-(IBAction)wipbtnClick:(id)sender
{
    passbtn.backgroundColor=[UIColor lightGrayColor];
    failbtn.backgroundColor=[UIColor lightGrayColor];
    wipbtn.backgroundColor=[UIColor orangeColor];
    nabtn.backgroundColor=[UIColor lightGrayColor];

    actuallbl.text=warninglbl.text;
    ActualString=actuallbl.text;


    UIAlertView *testAlert = [[UIAlertView alloc] initWithTitle:@"Warning!"
                                                        message:audittitlelbl.text
                                                       delegate:self
                                              cancelButtonTitle:nil
                                              otherButtonTitles:@"Done", nil];
    textView1 = [UITextView new];
    lbl = [[UILabel alloc] initWithFrame:CGRectMake(10.0, 0.0,90.0, 34.0)];
     [lbl setText:@"Enter Remark"];
    [lbl setFont:[UIFont systemFontOfSize:12]];
    [lbl setBackgroundColor:[UIColor clearColor]];
    [lbl setTextColor:[UIColor lightGrayColor]];
    textView1.delegate = self;

    [textView1 addSubview:lbl];

    [testAlert setValue: textView1 forKey:@"accessoryView"];

    [testAlert show];
}

- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {

    if(buttonIndex==0)
    {

    }
}
-(IBAction)nabtnClick:(id)sender
{
    passbtn.backgroundColor=[UIColor lightGrayColor];
    failbtn.backgroundColor=[UIColor lightGrayColor];
    wipbtn.backgroundColor=[UIColor lightGrayColor];
    nabtn.backgroundColor=[UIColor blueColor];
    actuallbl.text=nalbl.text;
    ActualString=actuallbl.text;

}

-(IBAction)infobtnClick:(id)sender
{
    UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"info" message:@"Information to be displayed" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
    [alert show];
}

视图控制器.m

   - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
   {
            static NSString *STI=@"STI";
            AuditTableViewCell *cell = (AuditTableViewCell *)[tableView dequeueReusableHeaderFooterViewWithIdentifier:STI];
            if (cell == nil)
            {
                NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"AuditTableViewCell" owner:self options:nil];
                cell = [nib objectAtIndex:0];
                cell.accessoryType=UITableViewCellAccessoryNone;
            }
            cell.audittitlelbl.text=[NSString stringWithFormat:@"%@",[idarray objectAtIndex:indexPath.row]];
            cell.nameidlbl.text=[NSString stringWithFormat:@"%@",[CheckpointNameIDArray objectAtIndex:indexPath.row]];
            cell.passlbl.text=[NSString stringWithFormat:@"%@",[Passarray objectAtIndex:indexPath.row]];
            cell.faillbl.text=[NSString stringWithFormat:@"%@",[Failarray objectAtIndex:indexPath.row]];
            cell.warninglbl.text=[NSString stringWithFormat:@"%@",[Warningarray objectAtIndex:indexPath.row]];
            cell.nalbl.text=[NSString stringWithFormat:@"%@",[NAarray objectAtIndex:indexPath.row]];


            [cell.passbtn addTarget:self action:@selector(btnQuantityPressedPass:) forControlEvents:UIControlEventTouchUpInside];
            [cell.failbtn addTarget:self action:@selector(btnQuantityPressedFail:) forControlEvents:UIControlEventTouchUpInside];
             [cell.wipbtn addTarget:self action:@selector(btnQuantityPressedWarning:) forControlEvents:UIControlEventTouchUpInside];
             [cell.nabtn addTarget:self action:@selector(btnQuantityPressedNA:) forControlEvents:UIControlEventTouchUpInside];
            [cell.contentView.layer setBorderColor:[UIColor blackColor].CGColor];
            [cell.contentView.layer setBorderWidth:0.5f];

            return cell;
       }

//TODO: PassButton from Cell method

-(void)btnQuantityPressedPass:(UIButton *)sender
{
    AuditTableViewCell *cell = sender.superview.superview;
    NSString *String =cell.actuallbl.text;
    NSString *String2=cell.nameidlbl.text;
    NSString *FailString=@"";
    NSString *WarningString=@"";
    NSLog(@"String =%@",String);

    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    [defaults setObject:String forKey:@"ActualStringCustom"];
    [defaults setObject:String2 forKey:@"CheckPointNameID"];

    NSManagedObjectContext *context = [self managedObjectContext];
    NSError *error;

    NSFetchRequest *request = [[NSFetchRequest alloc] init];
    [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

    //  NSError *error = nil;
    NSArray *results = [context executeFetchRequest:request error:&error];
    NSLog(@"Result =%@",results);

        ComplareArray=[devices valueForKey:@"checkpointid"];

        BOOL contains = [ComplareArray containsObject:String2];

        if(contains == NO)
        {
            if (self.device) {
                // Update existing device
                [device setValue:Audit forKey:@"auditnameId"];
                [device setValue:String forKey:@"checklistid"];
                [device setValue:String2 forKey:@"checkpointid"];
                [device setValue:FailString forKey:@"failreason"];
                [device setValue:WarningString forKey:@"warningreason"];
                [device setValue:AuditStartDate forKey:@"starttimedate"];
                [device setValue:userid forKey:@"userid"];

                NSError *error = nil;
                // Save the object to persistent store
                if (![context save:&error]) {
                    NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
                }



            } else {
            // Create a new device
                NSManagedObject *newDevice = [NSEntityDescription insertNewObjectForEntityForName:@"AuditPost" inManagedObjectContext:context];
                [newDevice setValue:Audit forKey:@"auditnameId"];
                [newDevice setValue:String forKey:@"checklistid"];
                [newDevice setValue:String2 forKey:@"checkpointid"];
                [newDevice setValue:FailString forKey:@"failreason"];
                [newDevice setValue:WarningString forKey:@"warningreason"];
                [newDevice setValue:AuditStartDate forKey:@"starttimedate"];
                [newDevice setValue:userid forKey:@"userid"];

                NSError *error = nil;
                // Save the object to persistent store
                if (![context save:&error]) {
                    NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
                }
             }

        }
        else
        {
            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }

            ///
            NSManagedObjectContext *context = [self managedObjectContext];

            NSFetchRequest *request = [[NSFetchRequest alloc] init];
            [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

            //  NSError *error = nil;
            NSArray *results = [context executeFetchRequest:request error:&error];
            NSManagedObject* favoritsGrabbed = [results objectAtIndex:CurrentIndexPath];
            [favoritsGrabbed setValue:String forKey:@"checklistid"];
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
        }

}
//TODO: FailButton from Cell method

-(void)btnQuantityPressedFail:(UIButton *)sender
{
    AuditTableViewCell *cell = sender.superview.superview;
    NSString *String =cell.actuallbl.text;
    NSString *String2=cell.nameidlbl.text;
    NSLog(@"String =%@",String);
    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    [defaults setObject:String forKey:@"ActualStringCustom"];
    [defaults setObject:String2 forKey:@"CheckPointNameID"];
    NSString *FailString=@"";
    NSString *WarningString=@"";

    NSManagedObjectContext *context = [self managedObjectContext];
    NSError *error;

    NSFetchRequest *request = [[NSFetchRequest alloc] init];
    [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

    //  NSError *error = nil;
    NSArray *results = [context executeFetchRequest:request error:&error];
    NSLog(@"Result =%@",results);

    ComplareArray=[devices valueForKey:@"checkpointid"];

    BOOL contains = [ComplareArray containsObject:String2];

    if(contains == NO)
    {
        if (self.device) {
            // Update existing device
            [device setValue:Audit forKey:@"auditnameId"];
            [device setValue:String forKey:@"checklistid"];
            [device setValue:String2 forKey:@"checkpointid"];
            [device setValue:FailString forKey:@"failreason"];
            [device setValue:WarningString forKey:@"warningreason"];
            [device setValue:AuditStartDate forKey:@"starttimedate"];
            [device setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }

        } else {
            // Create a new device
            NSManagedObject *newDevice = [NSEntityDescription insertNewObjectForEntityForName:@"AuditPost" inManagedObjectContext:context];
            [newDevice setValue:Audit forKey:@"auditnameId"];
            [newDevice setValue:String forKey:@"checklistid"];
            [newDevice setValue:String2 forKey:@"checkpointid"];
            [newDevice setValue:FailString forKey:@"failreason"];
            [newDevice setValue:WarningString forKey:@"warningreason"];
            [newDevice setValue:AuditStartDate forKey:@"starttimedate"];
            [newDevice setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
       }

    }
    else
    {
        NSError *error = nil;
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }

        ///
        NSManagedObjectContext *context = [self managedObjectContext];

        NSFetchRequest *request = [[NSFetchRequest alloc] init];
        [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

        //  NSError *error = nil;
        NSArray *results = [context executeFetchRequest:request error:&error];
        NSManagedObject* favoritsGrabbed = [results objectAtIndex:CurrentIndexPath];
        [favoritsGrabbed setValue:String forKey:@"checklistid"];
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }
    }

}
//TODO: WarningButton from Cell method

-(void)btnQuantityPressedWarning:(UIButton *)sender
{
    AuditTableViewCell *cell = sender.superview.superview;

    NSIndexPath *indexPath = [Audittable indexPathForCell:cell];
    CurrentIndexPath=indexPath.row;

    // NSLog(@"%@",cell.actuallbl.text);

    NSString *String =cell.actuallbl.text;
    NSString *String2=cell.nameidlbl.text;
    NSLog(@"String =%@",String);
    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    [defaults setObject:String forKey:@"ActualStringCustom"];
    [defaults setObject:String2 forKey:@"CheckPointNameID"];

    NSString *FailString=@"";
    NSString *WarningString=@"";

    NSManagedObjectContext *context = [self managedObjectContext];
    NSError *error;


    NSFetchRequest *request = [[NSFetchRequest alloc] init];
    [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

    //  NSError *error = nil;
    NSArray *results = [context executeFetchRequest:request error:&error];
    NSLog(@"Result =%@",results);

    ComplareArray=[devices valueForKey:@"checkpointid"];

    BOOL contains = [ComplareArray containsObject:String2];

    if(contains == NO)
    {
        if (self.device) {
            // Update existing device
            [device setValue:Audit forKey:@"auditnameId"];
            [device setValue:String forKey:@"checklistid"];
            [device setValue:String2 forKey:@"checkpointid"];
            [device setValue:FailString forKey:@"failreason"];
            [device setValue:WarningString forKey:@"warningreason"];
            [device setValue:AuditStartDate forKey:@"starttimedate"];
            [device setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
       } else {
            // Create a new device
            NSManagedObject *newDevice = [NSEntityDescription insertNewObjectForEntityForName:@"AuditPost" inManagedObjectContext:context];
            [newDevice setValue:Audit forKey:@"auditnameId"];
            [newDevice setValue:String forKey:@"checklistid"];
            [newDevice setValue:String2 forKey:@"checkpointid"];
            [newDevice setValue:FailString forKey:@"failreason"];
            [newDevice setValue:WarningString forKey:@"warningreason"];
            [newDevice setValue:AuditStartDate forKey:@"starttimedate"];
            [newDevice setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
        }
    }
    else
    {
        NSError *error = nil;
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }

        ///
        NSManagedObjectContext *context = [self managedObjectContext];

        NSFetchRequest *request = [[NSFetchRequest alloc] init];
        [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

        //  NSError *error = nil;
        NSArray *results = [context executeFetchRequest:request error:&error];
        NSManagedObject* favoritsGrabbed = [results objectAtIndex:CurrentIndexPath];
        [favoritsGrabbed setValue:String forKey:@"checklistid"];
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }
    }
}

//TODO: NAButton from Cell method

-(void)btnQuantityPressedNA:(UIButton *)sender
{
    AuditTableViewCell *cell = sender.superview.superview;
    // NSLog(@"%@",cell.actuallbl.text);

    NSString *String =cell.actuallbl.text;
     NSString *String2=cell.nameidlbl.text;
    NSLog(@"String =%@",String);
    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    [defaults setObject:String forKey:@"ActualStringCustom"];
    [defaults setObject:String2 forKey:@"CheckPointNameID"];

    NSString *FailString=@"";
    NSString *WarningString=@"";

    NSManagedObjectContext *context = [self managedObjectContext];
    NSError *error;


    NSFetchRequest *request = [[NSFetchRequest alloc] init];
    [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

    //  NSError *error = nil;
    NSArray *results = [context executeFetchRequest:request error:&error];
    NSLog(@"Result =%@",results);

    ComplareArray=[devices valueForKey:@"checkpointid"];

    BOOL contains = [ComplareArray containsObject:String2];

    if(contains == NO)
    {
        if (self.device) {
            // Update existing device
            [device setValue:Audit forKey:@"auditnameId"];
            [device setValue:String forKey:@"checklistid"];
            [device setValue:String2 forKey:@"checkpointid"];
            [device setValue:FailString forKey:@"failreason"];
            [device setValue:WarningString forKey:@"warningreason"];
            [device setValue:AuditStartDate forKey:@"starttimedate"];
            [device setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
       } else {
            // Create a new device
            NSManagedObject *newDevice = [NSEntityDescription insertNewObjectForEntityForName:@"AuditPost" inManagedObjectContext:context];
            [newDevice setValue:Audit forKey:@"auditnameId"];
            [newDevice setValue:String forKey:@"checklistid"];
            [newDevice setValue:String2 forKey:@"checkpointid"];
            [newDevice setValue:FailString forKey:@"failreason"];
            [newDevice setValue:WarningString forKey:@"warningreason"];
            [newDevice setValue:AuditStartDate forKey:@"starttimedate"];
            [newDevice setValue:userid forKey:@"userid"];

            NSError *error = nil;
            // Save the object to persistent store
            if (![context save:&error]) {
                NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            }
       }
    }
    else
    {
        NSError *error = nil;
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }

        ///
        NSManagedObjectContext *context = [self managedObjectContext];

        NSFetchRequest *request = [[NSFetchRequest alloc] init];
        [request setEntity:[NSEntityDescription entityForName:@"AuditPost" inManagedObjectContext:context]];

        //  NSError *error = nil;
        NSArray *results = [context executeFetchRequest:request error:&error];
        NSManagedObject* favoritsGrabbed = [results objectAtIndex:CurrentIndexPath];
        [favoritsGrabbed setValue:String forKey:@"checklistid"];
        // Save the object to persistent store
        if (![context save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
        }
    }

}

在图像中我选择通过按钮

在此处输入图片说明

但是当我重新加载表格选择按钮时取消选择

在此处输入图片说明

重新加载表格时如何获得选定的值。提前致谢！

3 个解决方案

解决方案1
 1  2017-01-07 10:52:15

太多的代码......你应该只发布与问题相关的代码。 我的猜测是，您只设置了视图，而没有对此负责的变量。 当您重新加载表格视图时，您会更新颜色并设置默认颜色。 简单的解决方案 - 创建代表每个单元格的模型。 该模型知道选择了哪些按钮等。

编辑：示例

class Model {

    var name: String?
    var isButtonOneSelected = false
    var isButtonTwoSelected = false
    var isButtonThreeSelected = false
    ....

}

解决方案2
 1 已采纳  2017-01-10 15:35:08

在 ios 表视图中，为每一行重用单元格，所以它确实发生了。 您使用模型类来管理选择。 我在单元格上的按钮上添加了选择器。还有重新加载表视图的示例。 请检查以下代码。

//
//  ViewController.m

#import "ViewController.h"
#import "DataModel.h"
#import "MyTableViewCell.h"

@interface ViewController ()
{
    NSMutableArray *arrData;
}

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    arrData = [[NSMutableArray alloc]init];

    // create 15 model and store in array
    for (int i =0; i<15; i++)
    {
        DataModel *model = [DataModel new];
        model.strSelected = @"";
        [arrData addObject:model];

    }

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return  arrData.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    MyTableViewCell *cell = [self.tblView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];

    // tag add on buttons
    cell.btnPPressed.tag = indexPath.row;
    cell.btnFPressed.tag = indexPath.row;
    cell.btnWPressed.tag = indexPath.row;
    cell.btnNAPressed.tag = indexPath.row;

    //method add on buttons
    [cell.btnPPressed addTarget:self action:@selector(btnP:) forControlEvents:UIControlEventTouchUpInside];
    [cell.btnFPressed addTarget:self action:@selector(btnF:) forControlEvents:UIControlEventTouchUpInside];
    [cell.btnWPressed addTarget:self action:@selector(btnW:) forControlEvents:UIControlEventTouchUpInside];
    [cell.btnNAPressed addTarget:self action:@selector(btnNA:) forControlEvents:UIControlEventTouchUpInside];


    //background color change on button
    DataModel *model = [arrData objectAtIndex:indexPath.row];
    if([model.strSelected isEqualToString:@"P"])
    {
        cell.btnPPressed.backgroundColor = [UIColor redColor];
    }
   else if([model.strSelected isEqualToString:@"F"])
    {
        cell.btnFPressed.backgroundColor = [UIColor redColor];
    }
   else if([model.strSelected isEqualToString:@"W"])
   {
       cell.btnWPressed.backgroundColor = [UIColor redColor];
   }
   else if([model.strSelected isEqualToString:@"NA"])
   {
       cell.btnNAPressed.backgroundColor = [UIColor redColor];
   }
   else
   {
       cell.btnPPressed.backgroundColor = [UIColor darkGrayColor];
       cell.btnFPressed.backgroundColor = [UIColor darkGrayColor];
       cell.btnWPressed.backgroundColor = [UIColor darkGrayColor];
       cell.btnNAPressed.backgroundColor = [UIColor darkGrayColor];

   }


    return cell;
}


//buttons methods

-(void)btnP:(UIButton *)sender
{
    sender.backgroundColor = [UIColor redColor];
    DataModel *model = [arrData objectAtIndex:sender.tag];
    model.strSelected = @"P";

    //example reload table
    dispatch_async(dispatch_get_main_queue(), ^{
        [self.tblView reloadData];
    });



}
-(void)btnF:(UIButton *)sender
{
    sender.backgroundColor = [UIColor redColor];
    DataModel *model = [arrData objectAtIndex:sender.tag];
    model.strSelected = @"F";

    //example reload table
    dispatch_async(dispatch_get_main_queue(), ^{
        [self.tblView reloadData];
    });


}
-(void)btnW:(UIButton *)sender
{
    sender.backgroundColor = [UIColor redColor];
    DataModel *model = [arrData objectAtIndex:sender.tag];
    model.strSelected = @"W";


    //example reload table
    dispatch_async(dispatch_get_main_queue(), ^{
        [self.tblView reloadData];
    });

}
-(void)btnNA:(UIButton *)sender
{
    sender.backgroundColor = [UIColor redColor];
    DataModel *model = [arrData objectAtIndex:sender.tag];
    model.strSelected = @"NA";


    //example reload table
    dispatch_async(dispatch_get_main_queue(), ^{
        [self.tblView reloadData];
    });

}

@end


//  DataModel.h
#import <Foundation/Foundation.h>

@interface DataModel : NSObject
@property(nonatomic, strong)NSString *strSelected;

@end


//  MyTableViewCell.h
#import <UIKit/UIKit.h>

@interface MyTableViewCell : UITableViewCell
@property (strong, nonatomic) IBOutlet UIButton *btnPPressed;
@property (strong, nonatomic) IBOutlet UIButton *btnFPressed;
@property (strong, nonatomic) IBOutlet UIButton *btnWPressed;
@property (strong, nonatomic) IBOutlet UIButton *btnNAPressed;

@end

解决方案3
 0  2017-01-07 11:03:53

您可以使用模型或可变字典来表示您对按钮的选择。

NSMutableDictionary *buttonSelection = [@{@"P_Button" : @"Selected",
                                          @"F_Button" : @"Selected",
                                          @"W_Button" : @"Selected",
                                          @"NA_Button" : @"Selected"} mutableCopy];

在你的方法cellForRowAtIndexPath里面。 你可以简单地使用这个字典来更新每个单元格：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

        static NSString *STI=@"STI";

        AuditTableViewCell *cell = (AuditTableViewCell *)[tableView dequeueReusableHeaderFooterViewWithIdentifier:STI];

        if (cell == nil)
        {
            NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"AuditTableViewCell" owner:self options:nil];
            cell = [nib objectAtIndex:0];
            cell.accessoryType=UITableViewCellAccessoryNone;
        }

        if ([[buttonSelection objectForKey:@"P_Button"] isEqualToString:@"Selected"]) {
            [cell.passbtn setSelected:YES];
        }

        return cell;
}

除此之外，最好为您的自定义单元格使用委托模式以获得您想要的功能。 可以通过以下方式完成。

@protocol CustomCellProtocol <NSObject>

- (void)passButtonSelected:(BOOL)selected forIndexPath:(NSIndexPath *)indexPath;

@end

@interface CustomTableViewCell : UITableViewCell

@property (nonatomic, weak) id<CustomCellProtocol> cellDelegate;

@property (nonatomic) NSIndexPath *indexPath;

@end

在@implementation或.m文件中，单击按钮，执行以下操作

- (void)passButtonSelected {

    [self.cellDelegate passButtonSelected:YES forIndexPath:self.indexPath];
}

在你的cellForRowAtIndexPath方法中，

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

        static NSString *STI=@"STI";

        AuditTableViewCell *cell = (AuditTableViewCell *)[tableView dequeueReusableHeaderFooterViewWithIdentifier:STI];

        if (cell == nil)
        {
            NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"AuditTableViewCell" owner:self options:nil];
            cell = [nib objectAtIndex:0];
            cell.accessoryType=UITableViewCellAccessoryNone;
        }

        cell.indexPath = indexPath;
        cell.cellDelegate = self;            

        if ([[buttonSelection objectForKey:@"P_Button"] isEqualToString:@"Selected"]) {
            [cell.passbtn setSelected:YES];
        }

        return cell;
}

因此，当您单击单元格上的按钮时。 您将在tableview.m文件中收到以下调用。

- (void)passButtonSelected:(BOOL)selected forIndexPath:(NSIndexPath *)indexPath {

    NSMutableDictionary *statusDic = [[self.buttonStatusModelArray objectAtIndex:indexPath.row] mutableCopy];
   [statusDic setObject:(selected ? @"Selected" : @"NonSelected") forKey:@"P_Button"];

    [self.buttonStatusModelArray replaceObjectAtIndex:indexPath.row withObject:statusDic];
}

如果您在实施过程中遇到任何问题，请告诉我。 请随时提出修改建议以使其更好:)

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