问题描述

在ios中创建plist文件出现错误

我想写一个方法用来创建plist文件，在网上搜了一些代码案例，但是不知道哪出错了。在log中：

2013-03-28 15:33:47.953 ECom[6680:c07] Property list invalid for format: 100 (property lists cannot contain NULL)2013-03-28 15:33:47.954 ECom[6680:c07] An error has occures <ECOMDataController: 0x714e0d0>

并且为什么这行代码返回null？

data = [NSPropertyListSerialization dataWithPropertyList:plistData format:NSPropertyListXMLFormat_v1_0 options:nil error:&err];

还有一个问题：怎么移除同一行的警报：

Incompatible pointer to integer conversion sending 'void *' to parameter of type 'NSPropertyListWriteOptions' (aka 'insigned int')

h-文件：

    #import <Foundation/Foundation.h>@interface ECOMDataController : NSObject{    CFStringRef trees[3];    CFArrayRef treeArray;    CFDataRef xmlValues;    BOOL fileStatus;    CFURLRef fileURL;    SInt32 errNbr;    CFPropertyListRef plist;    CFStringRef errStr;}@property(nonatomic retain) NSMutableDictionary * rootElement;@property(nonatomic retain) NSMutableDictionary * continentElement;@property(nonatomic strong) NSString * name;@property(nonatomic strong) NSString * country;@property(nonatomic strong) NSArray * elementList;@property(nonatomic strong)  id plistData;@property(nonatomic strong) NSString * plistPath;@property(nonatomic strong) NSData * data;@property(nonatomic strong) id filePathObj;-(void)CreateAppPlist;@end

m-文件：

#import ""ECOMDataController.h""@implementation ECOMDataController@synthesize rootElement continentElement country name elementList plistData data plistPath;- (void)CreateAppPlist {    // Get path of data.plist file to be created    plistPath = [[NSBundle mainBundle] pathForResource:@""data"" ofType:@""plist""];    // Create the data structure    rootElement = [NSMutableDictionary dictionaryWithCapacity:3];    NSError *err;    name = @""North America"";    country = @""United States"";    continentElement = [NSMutableDictionary dictionaryWithObjects:[NSArray arrayWithObjects:name country nil] forKeys:[NSArray arrayWithObjects:@""Name"" @""Country"" nil]];    [rootElement setObject:continentElement forKey:@""""];    //Create plist file and serialize XML    data = [NSPropertyListSerialization dataWithPropertyList:plistData format:NSPropertyListXMLFormat_v1_0 options:nil error:&err];    if(data)    {        [data writeToFile:plistPath atomically:YES];    } else {        NSLog(@""An error has occures %@"" err);    }    NSLog(@""%@   %@    %@"" plistPath rootElement data);}@end

解决方案

看看这个代码：
http://www.cnblogs.com/langtianya/p/3938405.html