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2014/10/15 ¤U¤È 10:15:50
iphone Programming Glossary: viewimageHow to create a UIImage from the current graphics context? http://stackoverflow.com/questions/1112947/how-to-create-a-uiimage-from-the-current-graphics-context
Capture iPhone screen with status bar included? http://stackoverflow.com/questions/1291110/capture-iphone-screen-with-status-bar-included self.view.bounds.size self.view.window.frame.size self.view.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext UIImageWriteToSavedPhotosAlbum viewImage nil nil nil.. UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext UIImageWriteToSavedPhotosAlbum viewImage nil nil nil The above code sucessfully takes a screenshot of the iPhone UIView but does not include the top status bar In..
http://stackoverflow.com/questions/1317978/iphone-get-camera-preview 0 UIGraphicsBeginImageContext CGSizeMake 320 427 cameraView.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext imageToDisplay.image PixelProcessing processImage viewImage.. UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext imageToDisplay.image PixelProcessing processImage viewImage In this case the image is black imageToDisplay.image viewImage In this case the image is black too imageToDisplay.image.. imageToDisplay.image PixelProcessing processImage viewImage In this case the image is black imageToDisplay.image viewImage In this case the image is black too imageToDisplay.image UIImage imageNamed @ icon.png In this case image is being displayed..
Save UIView's representation to file http://stackoverflow.com/questions/3051630/save-uiviews-representation-to-file
Getting a screenshot of a UIScrollView, including offscreen parts http://stackoverflow.com/questions/3539717/getting-a-screenshot-of-a-uiscrollview-including-offscreen-parts 0 768 1004 UIGraphicsBeginImageContext contextRect.size self.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext do something with the viewImage here. This basically.. UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext do something with the viewImage here. This basically moves to the top of the scroll view and takes a screenshot of the visible area. It works fine when..
[iOS]How to make a “snapshot” of the current view's state http://stackoverflow.com/questions/3710127/ioshow-to-make-a-snapshot-of-the-current-views-state UIGraphicsBeginImageContext self.view.bounds.size self.view.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return viewImage Create a custom init method for your.. UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return viewImage Create a custom init method for your modal view and also give your modalView an instance variable that can hold a UIImage..
Action sheet doesn't display when the MFMailComposeViewController's cancel button is tapped http://stackoverflow.com/questions/4274895/action-sheet-doesnt-display-when-the-mfmailcomposeviewcontrollers-cancel-butto UIGraphicsBeginImageContext self.view.bounds.size self.view.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData myData UIImagePNGRepresentation viewImage picker.. viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData myData UIImagePNGRepresentation viewImage picker addAttachmentData myData mimeType @ image png fileName @ viewImage Fill out the email body text NSString emailBody.. NSData myData UIImagePNGRepresentation viewImage picker addAttachmentData myData mimeType @ image png fileName @ viewImage Fill out the email body text NSString emailBody @ picker setMessageBody emailBody isHTML NO self presentModalViewController..
iPhone: How do I get the file path of an image saved with UIImageWriteToSavedPhotosAlbum()? http://stackoverflow.com/questions/4457904/iphone-how-do-i-get-the-file-path-of-an-image-saved-with-uiimagewritetosavedpho I'm saving a merged image to the iPhone photo library using UIImageWriteToSavedPhotosAlbum viewImage self @selector savedPhotoImage didFinishSavingWithError contextInfo nil And getting the callback using void savedPhotoImage.. #import AssetsLibrary AssetsLibrary.h to the header file of your class. Finally you can use the following code UIImage viewImage YOUR UIIMAGE mine was made from drawing context ALAssetsLibrary library ALAssetsLibrary alloc init Request to save the image.. library ALAssetsLibrary alloc init Request to save the image to camera roll library writeImageToSavedPhotosAlbum viewImage CGImage orientation ALAssetOrientation viewImage imageOrientation completionBlock ^ NSURL assetURL NSError error if error..
Iphonesdk Merge three images two single image http://stackoverflow.com/questions/7137411/iphonesdk-merge-three-images-two-single-image UIGraphicsBeginImageContext myView.bounds.size myView.layer renderInContext UIGraphicsGetCurrentContext UIImage viewImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext Then turn that into a format like PNG for instance NSData..
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