xcode - 选择器视图不以非弧模式显示

Question

我正在尝试使用带有ARC的PickerView关闭，它已成为一个夜晚，如果有人可以请快速看看，请提出如何解决... thnx提前将非常感激 问题是我的应用程序的其余部分是非弧形的，因此我想将pickerview添加为可以作为项目中的viewcontroller运行的类... 4天前，我有多个采摘工具精美地工作但是当我关闭电弧时，它变成了一场噩梦...找出确切的问题我已经删除了所有的装饰，现在只是使用裸露的结构....有没有错误，但数组中的数据没有显示...我列出下面的标题和实现文件...我链接文件夹的原因是使接口文件可用....这样连接可以是检查过......但是我们可以在首次检查基本代码后查看...非常感谢您的关注和时间......

·H

#import <UIKit/UIKit.h>
@interface HomeViewController : UIViewController        UIPickerViewDataSource,UIPickerViewDelegate>
{NSArray *categoryTypes;
}
@property (retain, nonatomic) IBOutlet UIPickerView *categoryTypePicker;
@property (retain, nonatomic) IBOutlet UIButton *categoryTypeBtn;

@end

的.m

#import "HomeViewController.h"

@interface HomeViewController ()

#define kPICKER1COLUMN 1
#define kCATEGORYTYPEPICKERTAG 21
#define kCATEGORYTYPEBTN 31

@end


@implementation HomeViewController

@synthesize categoryTypeBtn;
@synthesize categoryTypePicker;

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

        categoryTypes = [[NSArray alloc] initWithObjects:@"Appetizers",@"Breakfast",@"Dessert",@"Drinks",
                     @"Main Dish/Entree", @"Salad", @"Side Dish", @"Soup", @"Snack", 
                     @"Baby Food", @"Pet Food", nil];
    }
    return self;
}



- (void)viewDidLoad {
    [super viewDidLoad];

    categoryTypePicker.tag = kCATEGORYTYPEPICKERTAG;

    categoryTypePicker.showsSelectionIndicator = TRUE;
    categoryTypePicker.dataSource = self;
    categoryTypePicker.delegate = self;
    self.categoryTypePicker.dataSource = self;
    self.categoryTypePicker.delegate = self;
    [self.categoryTypePicker reloadAllComponents];
    categoryTypePicker.hidden = YES;
 }

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

- (int)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    if (pickerView.tag == kCATEGORYTYPEPICKERTAG)
        return kPICKER1COLUMN;
    else { return 0; }
}

- (int)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    if (pickerView.tag == kCATEGORYTYPEPICKERTAG)
        return [categoryTypes count];
    else { return 0; }
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    if (pickerView.tag == kCATEGORYTYPEPICKERTAG)
        return [categoryTypes objectAtIndex:row];
    else { return 0; }
}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    if (pickerView.tag == kCATEGORYTYPEPICKERTAG)
    {
        NSString *categoryType  = [categoryTypes objectAtIndex:[categoryTypePicker selectedRowInComponent:0]];
        [categoryTypeBtn setTitle:categoryType forState:UIControlStateNormal];

        NSLog(@"%@", categoryType);

    }

    pickerView.hidden=YES;
}


-(IBAction) showCategoryTypePicker{

        {
        [self.view addSubview:categoryTypePicker];
        categoryTypePicker.hidden = NO;

    }
}

- (void)viewDidUnload {
    [super viewDidUnload];

}


- (void)dealloc {
    [categoryTypes release];
    [categoryTypePicker release];
    [super dealloc];
}


@end

---

我将等待你的回复...

linktocode

Answer 1

[无法访问评论，所以我在这里回复]感谢rdelmar我注释掉了init-bundle和按钮的子视图，但现在构建给错误提供了错误的访问...我对这是什么有一个粗略的想法继续，但不知道如何解决它...问题基本上是没有为objectAtIndex调用保留数组...需要一些方法来保留它... thnx