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  1. PO
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    <p>Don't worry about the memory warning. If you're using <code>UIImagePickerController</code> on iPhone 4S or older devices, you'll typically get this warning, and you can't do much about it.</p> <p>What's important is that you need to make sure you're resizing the image appropriately via your delegate method for <code>imagePickerController:didFinishPickingMediaWithInfo:</code>. If you try to save and use (such as displaying in <code>UIImageView</code>) the <em>original image</em>, you will crash on these older devices due to memory pressure.</p> <p>See this <a href="http://vocaro.com/trevor/blog/2009/10/12/resize-a-uiimage-the-right-way/" rel="nofollow">excellent blog post</a> for a discussion on the correct way to resize a <code>UIImage</code>.</p> <p>Specifically, you will find this category to be helpful for resizing images correctly:</p> <p><a href="http://vocaro.com/trevor/blog/wp-content/uploads/2009/10/UIImage+Resize.h" rel="nofollow">UIImage+Resize.h</a></p> <p><a href="http://vocaro.com/trevor/blog/wp-content/uploads/2009/10/UIImage+Resize.m" rel="nofollow">UIImage+Resize.m</a></p> <p>If you already use another method that works, great. Otherwise, this method works very well.</p> <p>Using said category methods, here's an example of <code>imagePickerController:didFinishPickingMediaWithInfo:</code> using GCD to do the resizing on a background thread:</p> <pre><code>- (void)imagePickerController:(UIImagePickerController *)imagePicker didFinishPickingMediaWithInfo:(NSDictionary *)info { // Dismiss the image picker first to free its memory [self dismissViewControllerAnimated:YES completion:nil]; UIImage *originalImage = info[UIImagePickerControllerOriginalImage]; if (!originalImage) return; // Optionally set a placeholder image here while resizing happens in background dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ // Set desired maximum height and calculate width CGFloat height = 640.0f; CGFloat width = (height / self.size.height) * self.size.width; UIImage * image = [originalImage resizedImage:CGSizeMake(width, height) interpolationQuality:kCGInterpolationDefault]; // Save and use this image }); } </code></pre>
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    1. POiOS App crashes when taking a photo
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    1. USJRG-Developer
    1. USJRG-Developer
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    1. COThanks, so can I use this method instead of this `- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo` ...?
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      1. USYannick Winter
    2. COThat method was deprecated in iOS 3.0, so I'd recommend using the newer method `imagePickerController:didFinishPickingMediaWithInfo:` as shown above - see the Apple docs on it here: https://developer.apple.com/library/ios/documentation/uikit/reference/UIImagePickerControllerDelegate_Protocol/UIImagePickerControllerDelegate/UIImagePickerControllerDelegate.html#//apple_ref/occ/intfm/UIImagePickerControllerDelegate/imagePickerController:didFinishPickingMediaWithInfo:
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      1. USJRG-Developer
    3. COIt basically does the same thing, you just have to get the original image from the `info` dictionary... that's what `info[UIImagePickerControllerOriginalImage]` in the code does... which is the same as writing `[info objectForKey:UIImagePickerControllerOriginalImage]` (newer syntax)
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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