将plist加载到iOS TableView中 [英] Loading plist into iOS TableView

问题描述

我有一个包含以下内容的plist( images.plist )

I have a plist (images.plist) with the following contents

如您所见，每个项目都有一个数字键，范围是0到19.每个项目还具有两个字符串(fileName和fileInfo).

As you can see, each item has a numerical key, from 0-19. Each item also has two strings (fileName and fileInfo).

我正在尝试将所有文​​件名加载到TableView中.这是我的尝试:

I'm trying to load all of the fileName's into a TableView. Here's my attempt:

RosterMasterViewController.h

@interface RosterMasterViewController : UITableViewController

@property (nonatomic, strong) NSDictionary *roster;

@end

RosterMasterViewController.m

@implementation RosterMasterViewController

@synthesize roster = _roster;

...
// This is in my 'viewDidLoad'
NSString *file = [[NSBundle mainBundle] pathForResource:@"images" ofType:@"plist"];
self.roster = [NSDictionary dictionaryWithContentsOfFile:file];

这是我尝试将fileName加载到原型单元中的方式.

And here's how I'm trying to load the fileName into the Prototype Cells.

RosterMasterViewController.m

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"imageNameCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil)
    {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    // Configure the cell
    cell.textLabel.text = [[[self.roster allKeys] objectAtIndex:indexPath.row] objectForKey:@"fileName"];
   return cell;
}

注意 记录，我的CellIdentifier是正确的，如果将cell.textLabel.text设置为@"HELLO!"，那么我将看到"HELLO！".对于NSDictionary中的每个项目.我在//Configure the cell部分有困难

NOTE For the record, my CellIdentifier is correct, if I set the cell.textLabel.text to be @"HELLO!", then I will see "HELLO!" for each item in the NSDictionary. I'm having difficulty with the //Configure the cell section

不幸的是，这没有按我预期的那样工作.我遇到了麻烦，因为我想的都是数字键.

Unfortunately this isn't working as I expected. I'm having difficulty since my keys are all numerical I think.

更新

尝试使用我从下面的答案中学到的知识，

Trying to use what I've learned from the answers below, I have this:

// Configure the cell
NSLog(@"Key: %@", [NSNumber numberWithInt:indexPath.row]);
NSDictionary *dict = [self.roster objectForKey:[NSNumber numberWithInt:indexPath.row]];
NSLog(@"Dictionary: %@", dict);
NSString *fileName = [dict objectForKey:@"fileName"];
NSLog(@"FileName: %@", fileName);

cell.textLabel.text = fileName;
return cell;

但这给了我类似的结果

2012-02-03 11:24:24.295 Roster[31754:f803] Key: 7
2012-02-03 11:24:24.295 Roster[31754:f803] Dictionary: (null)
2012-02-03 11:24:24.296 Roster[31754:f803] FileName: (null)

如果我更改此行:

NSDictionary *dict = [self.roster objectForKey:[NSNumber numberWithInt:indexPath.row]];

收件人:

NSDictionary *dict = [self.roster objectForKey:@"5"];

然后，所有单元格的第6个元素都将具有正确的fileName.知道为什么[NSNumber numberWithInt:indexPath.row无法正常工作吗?

Then all of the cells will have the correct fileName for the 6th element. Any idea why [NSNumber numberWithInt:indexPath.row isn't working?

推荐答案

您可以执行以下操作:

NSDictionary *dict = [self.roster objectForKey:indexPath.row];
NSString *fileName = [dict objectForKey:@"fileName"];

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