字典没有正确创建？

我使用下面的代码在应用程序中创建nsdictionary。字典没有正确创建？

NSDictionary *allImportDict = [[NSDictionary alloc] initWithObjectsAndKeys: 
          [NSNumber numberWithInt:containerId], @"containerId", 
           [NSNumber numberWithInt:docTypeId], @"docTypeId",filextension, @"fileExt",metaDataFiellds, @"metaDataFields",[NSNumber numberWithInt:tmpRepoId], @"repositoryId",[NSNumber numberWithInt:1], @"pagesCount", 
           tmpSessionID, @"sessionId", fileName, @"title",guid, @"tmpFileName",[NSNumber numberWithInt:tmpUserID], @"userId", 
          nil];

但它创造的字典如下allImportDict的

印刷描述：

{ 
    containerId = 2; 
    docTypeId = 1; 
}

请指引我为什么它不包括所有的按键作为最关键的缺失？

来源

2017-03-02 iOSGuy

检查'filextension，@ “fileExt”' –

什么是这个问题？ – iOSGuy

'filextension'似乎是'nil'，然后停止字典的构建。 – Larme

你的NSDictionary“fileExt”参数包含“nil”value.Plz，更新它并检查。

来源

2017-03-02 10:59:07 bhadresh

我刚刚添加了验证值，并用NSMutableDictionary替换了NSDictionary。任何空值都会破坏你的代码。您可以复制粘贴以下代码。

NSMutableDictionary *allImportDict = [[NSMutableDictionary alloc] init]; 

    if(containerId) { 
     [allImportDict setObject:[NSNumber numberWithInt:containerId] forKey:@"containerId"]; 
    } 

    if(docTypeId) { 
     [allImportDict setObject:[NSNumber numberWithInt:docTypeId] forKey:@"docTypeId"]; 
    } 

    if([self canUseString:filextension]) { 
     [allImportDict setObject:filextension forKey:@"fileExt"]; 
    } 

    if([self canUseString:metaDataFiellds]) { 
     [allImportDict setObject:metaDataFiellds forKey:@"metaDataFiellds"]; 
    } 

    if(tmpRepoId) { 
     [allImportDict setObject:[NSNumber numberWithInt:tmpRepoId] forKey:@"tmpRepoId"]; 
    } 

    [allImportDict setObject:[NSNumber numberWithInt:1] forKey:@"pagesCount"]; 

    if([self canUseString:tmpSessionID]) { 
     [allImportDict setObject:tmpSessionID forKey:@"sessionId"]; 
    } 

    if([self canUseString:fileName]) { 
     [allImportDict setObject:fileName forKey:@"fileName"]; 
    } 

    if([self canUseString:guid]) { 
     [allImportDict setObject:guid forKey:@"guid"]; 
    } 

    if(tmpUserID) { 
     [allImportDict setObject:[NSNumber numberWithInt:tmpUserID] forKey:@"userId"]; 
    } 

    NSLog(@"allImportDict: %@", allImportDict);

来源

2017-03-02 11:16:59 Shardul

字典没有正确创建？

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