对Plist文件进行读写

读Plist文件

NSString *errorDesc = nil;
NSPropertyListFormat format;
NSString *rootPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *plistPath = [rootPath stringByAppendingPathComponent:@"bookmarks.plist"];

if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath]) {
　　plistPath = [[NSBundle mainBundle] pathForResource:@"bookmarks" ofType:@"plist"];
}
NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:plistPath];
context.bookmarksDic = (NSMutableDictionary *)[[NSPropertyListSerialization propertyListFromData:plistXML    mutabilityOption:NSPropertyListMutableContainersAndLeaves
    format:&format
    errorDescription:&errorDesc] retain];

keysArr = [[[context.bookmarksDic allKeys] sortedArrayUsingSelector:@selector(compare:)] retain];
if (!context.bookmarksDic) {
　　NSLog(@"Error reading plist: %@, format: %d", errorDesc, format);
}

 

写入Plist

Context *context = [Context getInstance];
NSString *rootPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *plistPath = [rootPath stringByAppendingPathComponent:@"bookmarks.plist"];
NSString *error;
NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:context.bookmarksDic 
　　　format:NSPropertyListXMLFormat_v1_0 
　　　errorDescription:&error]; 

if(plistData) { 
　　[plistData writeToFile:plistPath atomically:YES];
 } else {
　　 NSLog(@"%@",error);
　　 [error release]; 
}