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皆さん、私は数日前から問題と戦っていて、あなたの助けを得たいと思っていました. サーバー上に、通常どおり解析される RSS ファイルがあります。基本的には、ショー、コンサート、バンドのギグについてです。そのため、Show-Class を作成しました。

Show.h:

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

@interface Show : NSObject {

    NSString* gigName;
    NSString* date;
    NSString* place;
    NSString* door;
    NSString* time;
    NSString* bands;
    NSString* entry;
    NSString* query;
    NSString* flyer;
    NSString* type;
}

- (id)init:(NSString*)gigName date:(NSString*)date place:(NSString*)place door:(NSString*)door time:(NSString*)time bands:(NSString*)bands
     entry:(NSString*)entry query:(NSString*)query flyer:(NSString*)flyer type:(NSString*)type;

@property (nonatomic, retain) NSString* gigName;
@property (nonatomic, retain) NSString* date;
@property (nonatomic, retain) NSString* place;
@property (nonatomic, retain) NSString* door;
@property (nonatomic, retain) NSString* time;
@property (nonatomic, retain) NSString* bands;
@property (nonatomic, retain) NSString* entry;
@property (nonatomic, retain) NSString* query;
@property (nonatomic, retain) NSString* flyer;
@property (nonatomic, retain) NSString* type;

@end

そしてShow.m:

#import "Show.h"

@implementation Show
@synthesize gigName, date , place, door, time, bands, entry, query, flyer, type;

- (id)init:(NSString*)_gigName date:(NSString*)_date place:(NSString*)_place door:(NSString*)_door time:(NSString*)_time bands:(NSString*)_bands
     entry:(NSString*)_entry query:(NSString*)_query flyer:(NSString*)_flyer type:(NSString*)_type {
    //if (self = [super init]) {
    self = [super init];

    if(self) {
        gigName = _gigName;
        date = _date;
        place = _place;
        door = _door;
        time = _time;
        bands = _bands;
        entry = _entry;
        query = _query;
        flyer = _flyer;
        type = _type;
    }
    return self;
}

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

私のTourViewController(これはテーブルビューです)で、私はこれを作成しました:

- (void)viewDidLoad {

    [super viewDidLoad];

    //Initialize the array.
    listOfItems = [[NSMutableArray alloc] init];

    pastShowArray = [NSMutableArray arrayWithCapacity:[stories count]]; // needs to be mutable
    futureShowArray = [NSMutableArray arrayWithCapacity:[stories count]]; // needs to be mutable


    for(int i = 0; i < [stories count]; i++) {

        // get fields from story parser object
        gigName = [[stories objectAtIndex:i] objectForKey:@"gig"];
        type = [[stories objectAtIndex:i] objectForKey:@"type"];
        date  = [[stories objectAtIndex:i] objectForKey:@"date"];
        place = [[stories objectAtIndex:i] objectForKey:@"place"];
        door = [[stories objectAtIndex:i] objectForKey:@"door"];
        time = [[stories objectAtIndex:i] objectForKey:@"time"];
        bands = [[stories objectAtIndex:i] objectForKey:@"bands"];
        entry = [[stories objectAtIndex:i] objectForKey:@"entry"];
        query = [[stories objectAtIndex:i] objectForKey:@"query"];
        flyer = [[stories objectAtIndex:i] objectForKey:@"flyer"];

        // remove unnecessary whitespaces
        gigName =   [gigName stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        type =      [type stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        date  =     [date stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        place =     [place stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        door =      [door stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        time =      [time stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        bands =     [bands stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        entry =     [entry stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        query =     [query stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
        flyer =     [flyer stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];

        NSLog(gigName);
        NSLog(type);

        Show* show = [[Show alloc] init:gigName date:date place:place door:door time:time bands:bands entry:entry query:query flyer:flyer type:type];

        if([type isEqualToString:@"past"]) {
            // fill past show array
            NSLog(@"adding past object now");

            [pastShowArray addObject:show];

        } else {
            // fill future show array
            NSLog(@"adding future object now");

            [futureShowArray addObject:show];
        }
    } 

    NSMutableDictionary *pastShowsArrayDict = [NSMutableDictionary dictionaryWithObject:pastShowArray forKey:@"Show"];
    NSLog(@"added past show array to pastshowarraydict");

    NSMutableDictionary *futureShowsArrayDict = [NSMutableDictionary dictionaryWithObject:futureShowArray forKey:@"Show"];
    NSLog(@"added future show array to futureshowarraydict");

    [listOfItems addObject:pastShowsArrayDict];
    [listOfItems addObject:futureShowsArrayDict];

    //Set the title
    self.navigationItem.title = @"Tour";
}

私が知る限り、それはすべて問題なく機能しました。ここで、ショーの "gigName" をテーブルに表示したいと思います。このためには、NSDictionary から show オブジェクトを取得する必要があります。私はこれを持っていますが、クラッシュします:

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

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
    }

    // Set up the cell...
    NSLog(@"try to set up cell");
    //First get the dictionary object
    NSDictionary *dictionary = [listOfItems objectAtIndex:indexPath.section];
    NSArray *array = [dictionary objectForKey:@"Show"];

    Show *show = [array objectAtIndex:indexPath.row];
    NSLog(show.gigName);
    cell.text = show.gigName;

    return cell;
}

エラー出力:

2011-02-14 16:32:44.462 All in Vain [405:307] try to set up cell
terminate called after throwing an instance of 'NSException'
Program received signal:  “SIGABRT”.

show オブジェクトを取得し、テーブル テキストを show.gigName に設定する方法を教えてください。どんな助けでも感謝します。ありがとうございました、

乾杯、やめろ

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2 に答える 2

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これを変更してみてください:

cell.text = show.gigName;

の中へ :

cell.textLabel.text = show.gigName;
于 2011-02-14T16:16:52.817 に答える
0

Showinit:...オブジェクトの場合は、次のようにする必要があります。

self.gigName = _gigName;
self.date = _date;
self.place = _place;
self.door = _door;
self.time = _time;
self.bands = _bands;
self.entry = _entry;
self.query = _query;
self.flyer = _flyer;
self.type = _type;

それらのそれぞれが保持されるようにします(または保持しますgigName = [_gigName retain];が、空でない場合はリリースを失います)。

ビューコントローラーとそこに変数が設定されている方法でも同じ問題が発生する可能性がありますが、それ以上確認しないとわかりません。

于 2011-02-14T20:23:12.893 に答える