沙盒机制和文件(二)

最新推荐文章于 2022-12-14 10:26:50 发布

TommyYaphetS

最新推荐文章于 2022-12-14 10:26:50 发布

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分类专栏： iOS 数据持久化与数据解析 iOS 高级文章标签：沙盒

本文链接：https://blog.youkuaiyun.com/hmt20130412/article/details/22750187

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1、获取程序的Home目录
NSString *homeDirectory = NSHomeDirectory();  
NSLog(@"path:%@", homeDirectory);  

2、获取document目录
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);  
NSString *path = [paths objectAtIndex:0];  
NSLog(@"path:%@", path);   

3、获取Cache目录
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);  
NSString *path = [paths objectAtIndex:0];  
NSLog(@"%@", path);  

4、获取Library目录
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);  
NSString *path = [paths objectAtIndex:0];  
NSLog(@"%@", path);  

5、获取Tmp目录
NSString *tmpDir = NSTemporaryDirectory();  
 NSLog(@"%@", tmpDir); 

6、写入文件
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);  
    NSString *docDir = [paths objectAtIndex:0];  
    if (!docDir) {  
        NSLog(@"Documents 目录未找到");          
    }  
    NSArray *array = [[NSArray alloc] initWithObjects:@"内容",@"content",nil];  
    NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];  
    [array writeToFile:filePath atomically:YES];

7, 写入文件
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);  
    NSString *docDir = [paths objectAtIndex:0];  
    NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];  
    NSArray *array = [[NSArray alloc]initWithContentsOfFile:filePath];  
    NSLog(@"%@", array);