以一张图片为例 fakeXcode.png
下面以3种目录结构的方式引用这张图片:
1。直接拖进工程+copy
image =[UIImage imageNamed: @"fakeXcode.png"];
NSString *path = [[NSBundle mainBundle] pathForResource:@"fakeXcode" ofType:@"png"];
image =[[UIImage alloc]initWithContentsOfFile:path];
2.把文件夹拖进工程目录,然后拖进工程,create folder references for any added folder,(蓝色文件夹res)
image =[UIImage imageNamed: @"res/fakeXcode.png"];
NSString*path =[[NSBundle mainBundle] pathForResource:@"fakeXcode.png" ofType:nil inDirectory:@"res"];
image =[[UIImage alloc]initWithContentsOfFile:path];
3.创建bundle,把资源放进bundle(白色bundle,res.bundle)
image =[UIImage imageNamed: @"es.bundle/fakeXcode.png"];
NSString*path =[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"res.bundle/fakeXcode.png"];
image =[[UIImage alloc]initWithContentsOfFile:path];