iOS获取App各种文件的路径方法汇集

[super viewDidLoad];
    // 获取App的Sandbox路径
    NSString *sandboxPath = NSHomeDirectory();
    NSLog(@"%@",sandboxPath);
    //获取Documents路径
    NSString *doc = [sandboxPath stringByAppendingPathComponent:@"Documents"];
    NSLog(@"doc:%@",doc);
    //另一种获取Documents路径的方式
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *doc1 = [paths firstObject];
    NSLog(@"Doc:%@",doc1);
    
    //获取Library的路径
    NSString *lib = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) firstObject];
    NSLog(@"%@",lib);
     
    //获取Library下的Caches目录
    NSString *caches = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)firstObject];
    NSLog(@"Caches:%@",caches);
     
    //获取临时目录下tmp
    NSString *tmp = NSTemporaryDirectory();
    NSLog(@"tmp:%@",tmp);
     
    //如何获取应用程序本身的路径
    NSBundle *mainBundle = [NSBundle mainBundle];//mainBundle 对象代表应用程序本身的内容
    NSString *path = [mainBundle pathForResource:@"a" ofType:@"jpg"];
    NSLog(@"%@",path);
    //获取Url
    NSURL *url = [mainBundle URLForResource:@"a" withExtension:@"jpg"];
    NSLog(@"url:%@",url);

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