Question

我有一个appview，它是tableview / pickerview控制的，每个表都填充了textcellobjects。

现在，当客户选择一行并继续下一个tableview时，我想将该对象保存在一个类中分配/初始化的NSMutableArray中，并且我希望将该类文件设置为public，以便可以从所有不同的tableview添加对象类进入NSMutableArray。

前两个文件MotorTVController代码运行良好，当点击一个tableview单元格时，该对象被添加到_myTrimArray，但我希望能够在同一个_myTrimArray中保存下一个tablecell对象，我尝试导入TrimArray.h （这里的代码中有2个文件）与MotorTVController具有相同的保存功能，可以使用savearraycode，但是不起作用。

所以我希望TrimArray.h / TrimArray.h能够将tableviews和tableviewcell文本值从所有不同的类保存到一个NSMutableArray中。

我一直在努力解决这个问题差不多一个星期了，我希望有人可以给我一个解决方案，我对此有点新意，我知道这个问题很难解决，但我只是不知道＆＃39不知道怎么办？

   //--------- MotorTVController.h

#import "YearPickerTVControllerPolaris.h"
#import "MotorTVController.h"
#import "motorTVCell.h"
#import "brandsTVCell.h"
#import "TrimArray.h"

@interface MotorTVController : YearPickerTVControllerPolaris

@property (nonatomic, strong) NSArray *motorLabelArray;
@property (nonatomic, strong) NSMutableArray *myTrimArray;
@end

//--------- MotorTVController.m file:

#import "MotorTVController.h"
#import "motorTVCell.h"
#import "YearPickerTVControllerPolaris.h"
#import "BackButton.h"
#import "TrimArray.h"

@interface MotorTVController ()
@end
@implementation MotorTVController
@synthesize myTrimArray = _myTrimArray;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

// Getter

- (NSMutableArray *)myTrimArray
{
    if (_myTrimArray == nil) {
        _myTrimArray = [[NSMutableArray alloc] init];
    }
    return _myTrimArray;
}

- (void)viewDidLoad
{
    UIImage *arrow = [UIImage imageNamed:@"backbutton"];
    UIButton *arrowButton = [[UIButton alloc] initWithFrame:CGRectMake(-12, 0, 36, 36)];
    [arrowButton setBackgroundImage:arrow forState:UIControlStateNormal];
    [arrowButton addTarget:self action:@selector(back)
           forControlEvents:UIControlEventTouchUpInside];

    UIView* buttonView = [[UIView alloc] initWithFrame:CGRectMake(-12, 0, 36, 36)];
    [buttonView addSubview:arrowButton];
    UIBarButtonItem * backbutton = [[UIBarButtonItem alloc] 
    initWithCustomView:buttonView];
    [self.navigationItem setLeftBarButtonItem:backbutton];
    [super viewDidLoad];

    _motorLabelArray = @[@"Original EH12 (4hk)",
                         @"Honda GX160 (5.5hk)",
                         @"Subaru EX17 (6hk)",
                         @"Honda GX200 (6.5hk)",
                         @"Briggs LO206 (9hk)",
                         @"Briggs WF206 (11HK)"];
     //NSLog(@"%@", _myTrimArray);
}

-(void)back
{
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

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

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:

(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"motorTVCell";
    motorTVCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier
    forIndexPath:indexPath];

    // Configure the cell...
    [cell setTintColor:[UIColor blackColor]];
    [cell setAccessoryType:UITableViewCellAccessoryDetailDisclosureButton];
    [cell setAccessoryType:UITableViewCellAccessoryDetailButton];
    NSInteger row = [indexPath row];
    cell.motorCellLabel.text = _motorLabelArray[row];
    return cell;
}

    // Which row is selected
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:
(NSIndexPath *)indexPath
{
    NSInteger rowNumber = indexPath.row;

    if (rowNumber == 0)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:0]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:0]);
    }
    else if (rowNumber == 1)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:1]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:1]);
    }
    else if (rowNumber == 2)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:2]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:2]);
    }
    else if (rowNumber == 3)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:3]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:3]);
    }
    else if (rowNumber == 4)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:4]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:4]);
    }
    else if (rowNumber == 5)
    {
        [_myTrimArray addObject:[_motorLabelArray objectAtIndex:5]];
        NSLog(@"You choosed %@", [_myTrimArray objectAtIndex:5]);
    }
}
@end




        //-------------- TrimArray.m

#import "TrimArray.h"
#import "MotorTVController.h"

@interface TrimArray ()

@end

@implementation TrimArray
@synthesize myTrimArray = _myTrimArray;

// Getter

- (NSMutableArray *)myTrimArray
{
    if (_myTrimArray == nil) {
        _myTrimArray = [[NSMutableArray alloc] initWithCapacity:10];
    }
    return _myTrimArray;
}

@end


//----------------- TrimArray.h:

#import "MotorTVController.h"

@interface TrimArray : NSMutableArray

@property (nonatomic, strong) NSMutableArray *myTrimArray;

@end

Answer 1

如果我理解你的问题，你想让一个arrayObject全局可用于所有其他ViewControllers吗？

如果是这样，你的子类化形式NSMutableArray并赋予它NSMutableArray的属性是错误的。

要实现这一点，最简单的解决方案是使用NSUserDefaults。

像下面一样疼痛。 //获取standardUserDefaults对象，针对密钥存储UITableView数据数组，同步默认值

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:_trimArray forKey:@"TrimArray"];
[userDefaults synchronize];

要检索 //您可以从应用中的任何位置检索arrayObject。

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
NSArray *arrayOfObjects = [userDefaults objectForKey:@"TrimArray"];
// Use 'yourArray' to repopulate your UITableView

无法将NSMutableArray导入另一个类，并保存表格单元对象

1 个答案: