According to vm emulator image IO_PNG_Data exeeds limit and cause crashes. i am using following code to load image view.I have researched a lot but nothing helps.
CALayer *imageLayer = self.img_user.layer;
[imageLayer setBorderWidth:1];
[imageLayer setMasksToBounds:YES];
[imageLayer setCornerRadius:img_user.frame.size.width/2];
img_user.image =[UIImage imageWithContentsOfFile:getimgpath];
here getpath is the image at cashe, i have store the image get from url in cashe
NSString *stringURL = getpicurl;
NSURL *url = [NSURL URLWithString:stringURL];
NSData *urlData = [NSData dataWithContentsOfURL:url];
if ( urlData )
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [NSString stringWithFormat:#"%#/%#", documentsDirectory,#"userpic.png"];
[urlData writeToFile:filePath atomically:YES];
//obj_AppDelegate.img_path=filePath;
setimgpath(filePath);
}
While loading uiimageview each time memory exeeds,and crashes pls help.
Related
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.
I'm trying to take screenshot playing video but the screenshot always is showing blank. This is my code:
UIGraphicsBeginImageContext(self.view.bounds.size);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSData *data = UIImageJPEGRepresentation(viewImage, 1.0);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:#"image.jpg"];
[data writeToFile:filePath atomically:YES];
I'm using AVPlayer/AVPlayerLayer to play the video.
Any of you knows why this happening? or if I need to do something special with video to be able to take the screenshot?
I'll really appreciate your help.
I found a solution to my problem:
AVAssetImageGenerator *imageGenerator = [AVAssetImageGenerator assetImageGeneratorWithAsset:[self.player.currentItem asset]];
CGImageRef ref = [imageGenerator copyCGImageAtTime:self.player.currentItem.currentTime actualTime:nil error:nil];
UIImage *viewImage = [UIImage imageWithCGImage:ref];
CGImageRelease(ref);
NSData *data = UIImageJPEGRepresentation(viewImage, 1.0);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:#"image.jpg"];
[data writeToFile:filePath atomically:YES];
In iOS 8, I am writing UIImages on the device using the code
NSString *documentsDirectory = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
documentsDirectory = [paths objectAtIndex:0];
NSString *pathString = [NSString stringWithFormat:#"%#/%#%ld",documentsDirectory, #"ProfileImage", (long)[[NSUserDefaults standardUserDefaults] integerForKey:#"PatientsId"]];
NSData *imageData = UIImageJPEGRepresentation(image, 40);////I have replaced it with UIImagePNGRepresentation as well
[imageData writeToFile: pathString atomically:YES];
The write to file is successful.
If I try to recover the image using the function,
NSArray *documentDirectories =
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
// Get one and only document directory from that list
NSString *documentDirectory = [documentDirectories objectAtIndex:0];
NSString *pathString =[documentDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#%ld", #"ProfileImage", (long)[[NSUserDefaults standardUserDefaults] integerForKey:#"PatientsId"]]] ;
UIImage *image = [UIImage imageWithContentsOfFile: pathString];
The image is recovered.
However, if I restart the device, the images are not there anymore. The function [UIImage imageWithContentsOfFile: pathString] returns nil and if I use NSData *myData = [[NSData alloc] initWithContentsOfFile: pathString];, the myData is nil as well.
This procedure was working perfectly fine prior to iOS 8, however, it isn't working properly anymore. Can someone please guide me what is wrong with this?
I'm trying to create an application where it opens instagram after editing the picture in my app. I wanted it to include a hashtag on the description when it goes to instagram but I seem to get lost on how to implement that. The iphone hooks states to use the tag line but I don't know where to place that. below is my code
NSURL *instagramURL = [NSURL URLWithString:#"instagram://app"];
if ([[UIApplication sharedApplication] canOpenURL:instagramURL]) {
docInteraction.delegate = self;
Saves the edited Image to directory
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:#"instaFilterx.jpg"];
UIImage *image = combinedImage;
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
//Loads the edited Image
NSString *getImagePath = [documentsDirectory stringByAppendingPathComponent:#"instaFilterx.jpg"];
UIImage *tempImage = [UIImage imageWithContentsOfFile:getImagePath];
Hooks the edited Image with Instagram
NSString *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents/instaFilterx.igo"];
[UIImageJPEGRepresentation(tempImage, 1.0) writeToFile:jpgPath atomically:YES];
Prepares the DocumentInteraction with the .igo image for Instagram
NSURL *instagramImageURL = [[NSURL alloc] initFileURLWithPath:jpgPath];
docInteraction = [UIDocumentInteractionController
interactionControllerWithURL:instagramImageURL];
[docInteraction setUTI:#"com.instagram.exclusivegram"];eciate any help. Thank you.
To add caption to your Instagram Post. Do the following:
docInteraction.annotation=[NSDictionary dictionaryWithObjectsAndKeys:#"Your #Text", #"InstagramCaption", nil];
Hope this helps.
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