ios - 如何加载图像到uiimageview

Question

如何从自定义文件夹加载图像到uiimageview

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder
    NSString*ext= [NSString stringWithFormat:@"/Imagenes/30775.png"];
    NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:ext];
     //option 1 
     UIImage * myImage = [UIImage imageWithContentsOfFile: dataPath];
    _img.image = myImage
    ///option 2
    UIImageView * myImageView = [[UIImageView alloc] initWithImage: myImage];
    _img = myImageView;
    ///option 3
    NSData *imgData = [[NSData alloc] initWithContentsOfURL:[NSURL fileURLWithPath:dataPath]];
    _img.image = [UIImage imageWithData:imgData];

我尝试了 3 个选项但都不起作用有什么想法吗？

图像正在从自定义文件夹加载我检查了路径并且是正确的但没有加载

Answer 1

你的路径@"/Imagenes/30775.png"好像是错误的。仔细检查一下。否则以下应该有效

 UIImage * myImage = [UIImage imageWithContentsOfFile: dataPath];
_img.image = myImage