How to show image from documents directory to imageview? - iphone

Question

I am using sqlite db to save image path of document directory. Here is my code:
NSData * imageData = UIImageJPEGRepresentation(image, 0.8);
NSLog(#"Image data length== %d",imageData.length);
if (imageData != nil)
{
UIImage *resizedImg = [self scaleImage:[UIImage imageWithData:imageData] toSize:CGSizeMake(150.0f,150.0f)];
NSData * imageData = UIImageJPEGRepresentation(resizedImg, 0.2);
NSLog(#"*** Image data length after compression== %d",imageData.length);
NSString *nameofimg=[NSString stringWithFormat:#"%#",resizedImg];
NSString *substring=[nameofimg substringFromIndex:12];
NSString *new=[substring substringToIndex:7];// Get image name
NSArray *path=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentdirectory=[path objectAtIndex:0];
NSString *newFilePath = [NSString stringWithFormat:[documentdirectory stringByAppendingPathComponent: #"/%#.png"],new];
[imageData writeToFile:newFilePath atomically:YES];
imgpath=[[NSString alloc]initWithString:newFilePath];
NSLog(#"doc img in img method === %#",imgpath);
}
databasepath=[app getDBPath]; // i have this method in delegate
if (sqlite3_open([databasepath UTF8String], &dbAssessor) == SQLITE_OK)
{
NSString *selectSql = [NSString stringWithFormat:#"insert into imagetb(imagename,image) VALUES(\"%#\",\"%#\") ;",yourImgName,imgpath];
NSLog(#"Query : %#",selectSql);
const char *sqlStatement = [selectSql UTF8String];
sqlite3_stmt *query_stmt;
sqlite3_prepare(dbAssessor, sqlStatement, -1, &query_stmt, NULL);
if(sqlite3_step(query_stmt)== SQLITE_DONE)
{
NSLog(#"home image updated. :)");
app.houseImage=imgpath;
}
else
{
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:#"Sorry" message:#"Failed To Save Home Image." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
[alert release];
}
sqlite3_finalize(query_stmt);
}
sqlite3_close(dbAssessor);
These code save the image in document directory and path in sqlite. Now I want to show image from documents directory to imageview. How to do that? Any idea?

Answer 1

sample code:
- (NSString *)applicationDocumentsDirectory {
return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}
-(void)loadimage{
NSString *workSpacePath=[[self applicationDocumentsDirectory] stringByAppendingPathComponent:#"your image-name"];
UIImageView *myimage=[UIImageView alloc] initWithFrame:CGRectMake(0,0,20,20)];
myimage.image=[UIImage imageWithData:[NSData dataWithContentsOfFile:workSpacePath]];
[self.view addSubView:myimage];
[myimage release];
}

Answer 2

NSString *str = [NSString stringWithFormat:#"%#.jpg",[YourImageArray objectAtIndex:imageCounter]];
or
NSString *str=[[self applicationDocumentsDirectory] stringByAppendingPathComponent:#"YourImageName"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullImgNm=[documentsDirectory stringByAppendingPathComponent:[NSString stringWithString:str]];
[ImageView setImage:[UIImage imageWithContentsOfFile:fullImgNm]];
Hope Your Helpfull

Answer 3

NSString *docDirPath = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] objectAtIndex:0];
NSString *filePath = [docDirPath stringByAppendingFormat:#"myFile.png"];
UIImage *image = [UIImage imageWithContentsOfFile:filePath];
[imageView setImage:image];

Answer 4

If the entire path is stored in the sqlite then you just need to use this
NSString *imapeFilePath = PATH_FROM_DATABASE;
self.imageView.image = [UIImage imageWithContentsOfFile:imapeFilePath];
if the file name is stored in the database then use the following
NSString *imapeFilePath =[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:YOUR_IMAGE_NAME];
self.imageView.image = [UIImage imageWithContentsOfFile:imapeFilePath];