1、獲取沙盒路徑
NSString *path_document=NSHomeDirectory();//設置存儲文件路徑?。。。。?！文件路徑的名字一定要區分開 NSString *imagePath=[path_document stringByAppendingString:[NSString stringWithFormat:@"/Documents/%@%@%@.png",_shopObj.shopPicture,_shopObj.shopColor,self.shopObj.shopName]];//寫入文件 [UIImagePNGRepresentation(img) writeToFile:imagePath atomically:YES];//將地址存儲到自己設置的Model模型中 self.shopObj.shopPicture=imagePath;
2、讀取數據的時候，直接從自己設置文件中讀取出來就行了，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;
順便說一下設置的根目錄的位置：
2，獲取Documents目錄路徑的方法：
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *docDir = [paths objectAtIndex:0];
3，獲取Caches目錄路徑的方法：
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);NSString *cachesDir = [paths objectAtIndex:0];
4，獲取tmp目錄路徑的方法：
NSString *tmpDir = NSTemporaryDirectory();
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