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POHow to load image from documents directory/IPHONE
 

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  1. POHow to load image from documents directory/IPHONE
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    <p>I am saving the images when there is internet connection in my iphone. Now i want to load the images which are saved in documents directory. I am getting the path, but the image is not displaying. Please help me in this. Thanks in advance.</p> <p>Here is my code:</p> <pre><code>+(UIImage *) getImagewithName:(NSString*) imagepath { NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; UIImage *gimage=[UIImage imageWithContentsOfFile: [NSString stringWithFormat:@"%@/%@",docDir,imagepath]]; NSLog(@"%@/%@",docDir,imagepath); return gimage; } +(void)DownloadImage:(NSString*)ImagePath { if ([ImagePath isEqualToString:@""]) return; UIImage *dimage = [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"http:/uploads/%@",ImagePath]]]]; NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; NSLog(@"pathIMAGEPATHS:::::::%@",ImagePath); NSLog(@"path:::::::%@",docDir); NSArray *patharr=[ImagePath componentsSeparatedByString:@"."]; NSString* Ext=[NSString stringWithFormat: @"%@",[patharr objectAtIndex:1]]; NSString *FilePath = [NSString stringWithFormat: [NSString stringWithFormat:@"%@/%@",docDir,ImagePath]]; if([Ext isEqualToString:@"png"]) { NSLog(@"saving png"); NSData *data1 = [NSData dataWithData:UIImagePNGRepresentation(dimage)]; [data1 writeToFile:FilePath atomically:YES]; } else if([Ext isEqualToString:@"jpeg"]) { NSLog(@"saving jpeg"); //NSString *jpegFilePath = [NSString stringWithFormat:@"%@/test.jpeg",docDir]; NSData *data2 = [NSData dataWithData:UIImageJPEGRepresentation(dimage, 1.0f)];//1.0f = 100% quality [data2 writeToFile:FilePath atomically:YES]; } else { NSData *data1 = [NSData dataWithData:UIImagePNGRepresentation(dimage)]; [data1 writeToFile:FilePath atomically:YES]; } NSLog(@"saving image done"); [dimage release]; } </code></pre>
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    1. COhave you checked (easy to do with the simulator) if the image has been physically saved and can be opened with Preview? What I can see is that you never check if dimage, once downloaded from the network, is nil or not. If it is nil your code will keep going but finally saving an empty file. You should add a nil-check on dimage and exit with a NSLog(@"image not downloaded") and an early return.
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    2. COAnother good way of debugging interactions with the Documents directory is to turn on file sharing in your `Info.plist`. Then you can open iTunes to browse the files and transfer them to your computer.
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