It is my save method :
-(NSString *)saveImage:(UIImage *)image
{
NSInteger RandomIndex = arc4random() % 1000;
NSString *randomImageName =[NSString stringWithFormat:#"Image%i.png",RandomIndex];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:randomImageName];
if ([[NSFileManager defaultManager] fileExistsAtPath:savedImagePath]) {
[[NSFileManager defaultManager] removeItemAtPath:savedImagePath error:nil];
NSLog(#"file removed from path");
}
NSLog(#"Saved Image Path : %#",savedImagePath);
NSData* imageData = UIImagePNGRepresentation (image);
[imageData writeToFile:savedImagePath atomically:YES];
self.teamLogo = savedImagePath;
return savedImagePath;
}
I try to load image and put into control :
NSData *myData = [NSData dataWithContentsOfFile:self.team.logo];
UIImage *selectedImage = [UIImage imageWithData:myData];
self.team.logo is from DB. I keep string in base. In debug mode i got this string :
/var/mobile/Containers/Data/Application/7CD69EC9-9C20-48EE-B611-FC2353BC31B0/Documents/Image364.png
and myData is still nil. Do you have idea why ?
Starting from IOS 8 layout of containers changed. So don't store full path to your DB. Instead just store your image name. For recalling the image use:
NSString *temp = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:#"Image364.png"];
NSData *myData = [NSData dataWithContentsOfFile:temp];
UIImage *selectedImage = [UIImage imageWithData:myData];
I hope it helps.
Related
I want to save and load image in UIImageView
I have already tried some code but it doesn't work.
The Code i have tried:
Save:
UIImage *image = ...;
NSString *cachedFolderPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
NSString *cachedImagePath = [cachedFolderPath stringByAppendingPathComponent:#"image.png"];
[UIImagePNGRepresentation(image) writeToFile:cachedImagePath atomically:YES];
Load:
NSString *cachedFolderPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
NSString *cachedImagePath = [cachedFolderPath stringByAppendingPathComponent:#"image.png"];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfFile:cachedImagePath]];
But these code doesn't work!
I hope you want to save image in document directory folder
here is the way to save image:
- (void)saveImage: (UIImage*)image
{
if (image != nil)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [documentsDirectory stringByAppendingPathComponent:
[NSString stringWithString: #"test.png"] ];
NSData* data = UIImagePNGRepresentation(image);
[data writeToFile:path atomically:YES];
}
}
to get image from document directory:
- (UIImage*)loadImage
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [documentsDirectory stringByAppendingPathComponent:
[NSString stringWithString: #"test.png"] ];
UIImage* image = [UIImage imageWithContentsOfFile:path];
return image;
}
Hope this will help
Globally declare imageView
UIImageView *imageView;//if u create imageView in interfaceBuilder. then u can replace this line by creating outlet of ur imageView
for loading image:
//Loading image in imageView
NSString *cachedFolderPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
NSString *cachedImagePath = [cachedFolderPath stringByAppendingPathComponent:#"image.png"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:cachedImagePath])
{
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfFile:cachedImagePath]];
if (image)
{
imageView = [[UIImageView alloc]init];//Dont do this, if u created imageView using interFace builder
[imageView setFrame:CGRectMake(50, 100, 200, 200)];//Dont do this, if u created imageView using interFace builder
[self.view addSubview:imageView];//Dont do this, if u created imageView using interFace builder
[imageView setImage:image];
}
else
{
NSLog(#"Unsupported File");
}
}
else
{
NSLog(#"Image not Found in the path");
}
for saving image:
UIImage *image = imageView.image;
if (image)
{
NSString *cachedFolderPath = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
NSString *cachedImagePath = [cachedFolderPath stringByAppendingPathComponent:#"imageSaved.png"];
[UIImagePNGRepresentation(image) writeToFile:cachedImagePath atomically:YES];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:cachedImagePath])
{
NSLog(#"File Created");
}
}
else
{
NSLog(#"No image to save");
}
I want to load the image from the saved file path of that image that is stored in my iPhone. I am getting the path but still it says file does not exist. This is my code :
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *imagePath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#",self.imageName]];
BOOL fileExists=[[NSFileManager defaultManager] fileExistsAtPath:imagePath];
NSLog(#"%#",imagePath);
UIImage *fetchImage = [UIImage imageWithContentsOfFile:imagePath];
fileExists returns NO even when I get this path :
/var/mobile/Applications/2ED5C185-8528-48D3-BE0B-28582DC3D294/Documents/IMG_0028.JPG
I ran into this problem as well. Hopefully this will save someone a headache down the road.
You can't rely on the Documents Directory to stay consistent from one build to the next. When you re-deploy the app this path could change:
/var/mobile/Applications/2ED5C185-8528-48D3-BE0B-28582DC3D294/Documents/
My problem was I was storing the Document Path in a JSON file and trying to retrieve it on subsequent builds. This piece changes on every build:
2ED5C185-8528-48D3-BE0B-28582DC3D294
Store only the filename with extension and pull the Document Path dynamically. Then you can proceed to prefix the path on the filename.
Try this it work fine for me
NSString* documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *imageName = [[NSString alloc]initWithFormat:#"%#",self.imageName ];
NSString* foofile = [documentsPath stringByAppendingPathComponent:imageName];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile];
if (fileExists) {
NSLog(#"alreday Exists");
}
// for showing image on image view
NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *pngFilePath = [NSString stringWithFormat:#"%#/%#", docDir,self.imageName];
UIImage *img = [UIImage imageWithContentsOfFile:pngFilePath];
try with following code :
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *imagePath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.JPG",self.imageName]];
BOOL fileExists=[[NSFileManager defaultManager] fileExistsAtPath:imagePath];
NSLog(#"%#",imagePath);
UIImage *fetchImage = [UIImage imageWithContentsOfFile:imagePath];
UIImage *image =[UIImage imageWithData:[NSData dataWithContentsOfFile:self.aStrImagePath]];
try this:
NSString *strNew=[dci valueForKey:#"uThumbPath"];
NSString *strCompare=[NSString stringWithFormat:#"%#.jpg",[self MD5String:strNew]];
NSString* documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSLog(#"%#",documentsPath);
NSString *strFileName=[NSString stringWithFormat:#"%#/%#",documentsPath,strCompare];
if([[NSFileManager defaultManager] fileExistsAtPath:strFileName])
{
NSLog(#"Downloaded From Localpath");
NSString *inputPath= strFileName;
NSString *extension=[inputPath pathExtension];
NSString *file=[[inputPath lastPathComponent]stringByDeletingPathExtension];
NSString *dir=[inputPath stringByDeletingLastPathComponent];
NSString *imagePATH=[NSBundle pathForResource:file ofType:extension inDirectory:dir];
UIImage* theImage=[UIImage imageWithContentsOfFile:imagePATH];
cell.imgThumb.image=theImage;
}
else{
NSLog(#"Downloaded From Server");
NSURL *URL = [NSURL URLWithString: [dci valueForKey:#"uThumbPath"]];
NSURLRequest* request = [NSURLRequest requestWithURL:URL];
NSLog(#"%#",strNew);
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse * response,
NSData * data1,
NSError * error) {
if (!error){
[self saveLocally:data1 name:strNew];
cell.imgThumb.image = [UIImage imageWithData:data1];
}
}];
}
and use this
- (NSString *)MD5String:(NSString *)string{
const char *cstr = [string UTF8String];
unsigned char result[16];
CC_MD5(cstr, strlen(cstr), result);
return [NSString stringWithFormat:
#"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
I had this just happen to me. XCode didn't update my files correctly after adding it to my project. Try to do a clean (Product -> Clean) and see if that fixes the issue.
I have Five buttons.On each button action.I have open gallery and choose an image.But the problem is on each button action same path is coming.
UIImage* image = [info valueForKey:#"UIImagePickerControllerOriginalImage"];
NSData* imageData = UIImagePNGRepresentation(image);
NSString * imageName = #"Myimage.png";
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName];
NSLog(#"fullPathToFile=%#",fullPathToFile); //important line
[imageData writeToFile:fullPathToFile atomically:NO];
Set global variable initially int countVal = 1;
NSString * imageName = [NSString stringWithformat:#"%d.png",countVal]; // Imgae_name set here
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName];
NSLog(#"fullPathToFile=%#",fullPathToFile); //important line
[imageData writeToFile:fullPathToFile atomically:NO];
count +=1; // Increment count here
I may be missing something, but it looks like you're using the same name for the image each time: Myimage.png. Every time the image will be saved inside the documents directory with that same name. Maybe add a tag to each button and use that to distinguish each of the 5 different images?
May be it will helpful for u
[picker dismissModalViewControllerAnimated:YES];
imageView.image= [info objectForKey:#"UIImagePickerControllerOriginalImage"];
NSData *webData = UIImagePNGRepresentation(imageView.image);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *localFilePath = [documentsDirectory stringByAppendingPathComponent:png];
[webData writeToFile:localFilePath atomically:YES];
NSLog(#"localFilePath.%#",localFilePath);
UIImage *image = [UIImage imageWithContentsOfFile:localFilePath];
OR
Use this code
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:#"savedImage.png"];
imageView.image= [info objectForKey:#"UIImagePickerControllerOriginalImage"];
NSData *webData = UIImagePNGRepresentation(imageView.image);
[imageData writeToFile:savedImagePath atomically:NO];
NSLog(#"localFilePath.%#",localFilePath);
If you still get it empty then try by checking if NSData is created properly
NSLog(#"webData.%#",webData);
OR
Try this: I hope defnetly it will be be helpful to you
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *img = [info objectForKey:UIImagePickerControllerEditedImage];
//you can use UIImagePickerControllerOriginalImage for the original image
//Now, save the image to your apps temp folder,
NSString *path = [NSTemporaryDirectory() stringByAppendingPathComponent:#"upload-image.tmp"];
NSData *imageData = UIImagePNGRepresentation(img);
//you can also use UIImageJPEGRepresentation(img,1); for jpegs
[imageData writeToFile:path atomically:YES];
//now call your method
[self uploadMyImageToTheWebFromPath:path];
}
Try to use below code which just edited to you answer
The problem is only with saving image name,try to save it with different name
The below code will help you in saving image with diffrent name
note: put the tag value to diffrent button(5 buttons) and call bello method in its target
-(void)saveImage:(UIButton*)sender{
UIImage* image = [info valueForKey:#"UIImagePickerControllerOriginalImage"];
NSData* imageData = UIImagePNGRepresentation(image);
NSString * imageName =[NSString stringWithFormat:#"Myimage%d.png",sender.tag];
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName];
NSLog(#"fullPathToFile=%#",fullPathToFile); //important line
[imageData writeToFile:fullPathToFile atomically:NO];
}
by this you can save image with different name
First I stored image path from web service into SQLITE, and then I retrieve it back using local path. I am using NSMutableArray. I've successfully stored one image in NSDocumentDirectory, but I have one issue, How can I store more than one images in NSDocumentDirectory?
My code is,
if ([[[node childAtIndex:counter] name] isEqualToString:#"Column5"])
{
NSString *str = [[node childAtIndex:counter] stringValue];
[Col5 addObject:str];
NSString *myString = [Col5 componentsJoinedByString:#","];
NSString *aString = [NSString stringWithFormat:#"http://webserviceurl/%#",myString];
NSURL *url= [NSURL URLWithString:aString];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:strCol4];
UIImage *image = tmpImage;
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
}
For this line:
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:strCol4];
Just use a different path component.
Usually when you have the images in the project file you use the code
arraycollectionimages = [[NSArray alloc]]initwithobjects
however I want to show the images that are saved in the directories. I have created multiple directories so I just want to recall image for one of them. To make this work I want to use this code however I cannot do this? I just stuck it it in as follows but did not work well.
- (void)viewDidLoad {
NSArray *arrayCollectionImages = [[NSArray alloc ]init];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *location=#"Genre1";
NSString *fPath = [documentsDirectory stringByAppendingPathComponent:location];
NSArray *directoryContent = [[NSFileManager defaultManager] directoryContentsAtPath: fPath];
for(NSString *str in directoryContent){
NSString *finalFilePath = [fPath stringByAppendingPathComponent:str];
NSData *data = [NSData dataWithContentsOfFile:finalFilePath];
if(data)
{
UIImage *image = [UIImage imageWithData:data];
[arrayCollectionImages addObject:image];
}
}
I think your directory search is probably taking long. Try this...
- (void)viewDidLoad {
dispatch_queue_t searchQ = dispatch_queue_create("com.awesome", 0);
dispatch_async(searchQ, ^{
NSArray *arrayCollectionImages = [[NSArray alloc ]init];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *location=#"Genre1";
NSString *fPath = [documentsDirectory stringByAppendingPathComponent:location];
NSArray *directoryContent = [[NSFileManager defaultManager] directoryContentsAtPath: fPath];
for(NSString *str in directoryContent){
NSString *finalFilePath = [fPath stringByAppendingPathComponent:str];
NSData *data = [NSData dataWithContentsOfFile:finalFilePath];
if(data)
{ dispatch_async(dispatch_get_main_queue(),^{
UIImage *image = [UIImage imageWithData:data];
});
[arrayCollectionImages addObject:image];
}
}
});
}
The code basically spawns off another thread on the search and puts the image when its ready.