IOS  开发获取本地图片路径及上传

1、获取沙盒路径

NSString *path_document=NSHomeDirectory();

//设置存储文件路径!!!!!!文件路径的名字一定要区分开

NSString *imagePath=[path_document stringByAppendingString:[NSString stringWithFormat:@"/Documents/%@%@%@.png",_shopObj.shopPicture,_shopObj.shopColor,self.shopObj.shopName]];

//写入文件

[UIImagePNGRepresentation(img) writeToFile:imagePath atomically:YES];

//将地址存储到自己设置的Model模型中

self.shopObj.shopPicture=imagePath;

2、读取数据的时候,直接从自己设置文件中读取出来就行了,例子如下:

NSString *path_document=NSHomeDirectory();

NSString *imagePath=[path_document stringByAppendingString:[NSString stringWithFormat:@"/Documents/%@%@%@.png",_shopObj.shopPicture,_shopObj.shopColor,self.shopObj.shopName]];

UIImage *img=[UIImage imageWithContentsOfFile:imagePath];

cell.imgV.image=img;

  顺便说一下设置的根目录的位置:

2,获取Documents目录路径的方法:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *docDir = [paths objectAtIndex:0];

3,获取Caches目录路径的方法:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);

NSString *cachesDir = [paths objectAtIndex:0];

4,获取tmp目录路径的方法:

NSString *tmpDir = NSTemporaryDirectory();

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