找不到我的.plist，为什么？

Question

我需要向plist中写入一个字符串，但是找不到plist，为什么？

在.h中

NSMutableDictionary *cameras;

.m文件

#define DOCUMENTS [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]

在ViewDidLoad中

NSString *plistPath = [DOCUMENTS stringByAppendingPathComponent:@"Сamera.plist"];
    if([[NSFileManager defaultManager] fileExistsAtPath:plistPath])
    {
        NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:plistPath];
        cameras = [NSMutableDictionary dictionaryWithDictionary:[NSPropertyListSerialization propertyListFromData:plistXML mutabilityOption:NSPropertyListMutableContainersAndLeaves format:nil errorDescription:nil]];
    }

Answer 1

NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *docDirPath = [documentsDirectory stringByAppendingPathComponent:@"YourPlist.plist"];

NSFileManager *fileManager = [NSFileManager defaultManager];

if(![fileManager fileExistsAtPath: docDirPath]) {
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"YourPlist" ofType:@"plist"];

    [fileManager copyItemAtPath:bundle toPath:docDirPath error:&error];

    NSLog(@"plist is copied to Directory");
 }

确保您的目录包含plist文件。

Answer 2

//改为：

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *plistPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"Сamera.plist"];