Presenting a Picker
Create an image picker by allocating and initializing it. Next, set its source type to the library (all images) or Camera Roll (captured images). Recipe 8-1 sets the photo library source type, allowing users to browse through all library images.
UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
An optional editing property (allowsEditing) adds a step to the interactive selection process. When enabled, it allows users to scale and frame the image they picked before finishing their selection. When it is disabled, any media selection immediately redirects control to the next phase of the picker’s life cycle. ...
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