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2014/10/15 ¤U¤È 10:05:00
iphone Programming Glossary: cgaffinetransformidentityHow can I customize an iOS alert view? http://stackoverflow.com/questions/2600779/how-can-i-customize-an-ios-alert-view view. Something like this works void initialDelayEnded self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.001 0.001 self.view.alpha 1.0 UIView beginAnimations nil context nil UIView setAnimationDuration kTransitionDuration.. @selector bounce1AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 1.1 1.1 UIView commitAnimations void bounce1AnimationStopped UIView beginAnimations nil context nil.. @selector bounce2AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.9 0.9 UIView commitAnimations void bounce2AnimationStopped UIView beginAnimations nil context nil..
Get PDF hyperlinks on iOS with Quartz http://stackoverflow.com/questions/4080373/get-pdf-hyperlinks-on-ios-with-quartz temp rect.size.width rect.origin.x rect.size.height rect.origin.y CGAffineTransform trans CGAffineTransformIdentity trans CGAffineTransformTranslate trans 0 pageRect.size.height trans CGAffineTransformScale trans 1.0..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom at the new scale factor. Generally it's suggested that you reset the transform on your view to be CGAffineTransformIdentity and then have your view manually redraw itself at the new size scale. However this causes a problem.. scrollView withView UIView view atScale float scale contentView setTransformWithoutScaling CGAffineTransformIdentity Code to manually redraw view at new scale here contentView.previousScale scale scrollView.contentSize..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app width CGImageGetWidth imgRef CGFloat height CGImageGetHeight imgRef CGAffineTransform transform CGAffineTransformIdentity CGRect bounds CGRectMake 0 0 width height if width kMaxResolution height kMaxResolution CGFloat ratio.. orient image.imageOrientation switch orient case UIImageOrientationUp EXIF 1 transform CGAffineTransformIdentity break case UIImageOrientationUpMirrored EXIF 2 transform CGAffineTransformMakeTranslation imageSize.width..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees looks like this wrapped in a beginAnimations commitAnimations block scale CGAffineTransformScale CGAffineTransformIdentity 5.0f 5.0f swirl CGAffineTransformRotate scale M_PI player setTransform swirl player setAlpha 0.0f But..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case UIImageOrientationDown case UIImageOrientationDownMirrored transform..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect it #define RADIANS degrees degrees M_PI 180.0 CGAffineTransform leftWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS.. CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 itemView.transform leftWobble starting point UIView beginAnimations @ wobble context itemView.. finished context void context if finished boolValue UIView item UIView context item.transform CGAffineTransformIdentity Probably have to play with timing and angles but this should get you started. EDIT I edited the response..
How can I customize an iOS alert view? http://stackoverflow.com/questions/2600779/how-can-i-customize-an-ios-alert-view I use a few animations to make it bounce like Apple's alert view. Something like this works void initialDelayEnded self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.001 0.001 self.view.alpha 1.0 UIView beginAnimations nil context nil UIView setAnimationDuration kTransitionDuration 1.5 UIView setAnimationDelegate self UIView.. 1.5 UIView setAnimationDelegate self UIView setAnimationDidStopSelector @selector bounce1AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 1.1 1.1 UIView commitAnimations void bounce1AnimationStopped UIView beginAnimations nil context nil UIView setAnimationDuration kTransitionDuration 2 UIView setAnimationDelegate.. 2 UIView setAnimationDelegate self UIView setAnimationDidStopSelector @selector bounce2AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.9 0.9 UIView commitAnimations void bounce2AnimationStopped UIView beginAnimations nil context nil UIView setAnimationDuration kTransitionDuration 2 self.view.transform..
Get PDF hyperlinks on iOS with Quartz http://stackoverflow.com/questions/4080373/get-pdf-hyperlinks-on-ios-with-quartz pageRect.size.width pageRect.size.height pageRect.size.height temp rect.size.width rect.origin.x rect.size.height rect.origin.y CGAffineTransform trans CGAffineTransformIdentity trans CGAffineTransformTranslate trans 0 pageRect.size.height trans CGAffineTransformScale trans 1.0 1.0 rect CGRectApplyAffineTransform rect trans do whatever..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom a chance to do a more high quality rendering of your view at the new scale factor. Generally it's suggested that you reset the transform on your view to be CGAffineTransformIdentity and then have your view manually redraw itself at the new size scale. However this causes a problem because UIScrollView doesn't appear to monitor the content view.. method as follows void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale contentView setTransformWithoutScaling CGAffineTransformIdentity Code to manually redraw view at new scale here contentView.previousScale scale scrollView.contentSize contentView.frame.size By doing this the transforms sent to..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app 640 Or whatever CGImageRef imgRef image.CGImage CGFloat width CGImageGetWidth imgRef CGFloat height CGImageGetHeight imgRef CGAffineTransform transform CGAffineTransformIdentity CGRect bounds CGRectMake 0 0 width height if width kMaxResolution height kMaxResolution CGFloat ratio width height if ratio 1 bounds.size.width kMaxResolution.. imgRef CGImageGetHeight imgRef CGFloat boundHeight UIImageOrientation orient image.imageOrientation switch orient case UIImageOrientationUp EXIF 1 transform CGAffineTransformIdentity break case UIImageOrientationUpMirrored EXIF 2 transform CGAffineTransformMakeTranslation imageSize.width 0.0 transform CGAffineTransformScale transform 1.0 1.0..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees which I'ld like to have swirl outwards. Currently my code looks like this wrapped in a beginAnimations commitAnimations block scale CGAffineTransformScale CGAffineTransformIdentity 5.0f 5.0f swirl CGAffineTransformRotate scale M_PI player setTransform swirl player setAlpha 0.0f But I find that if I try to change the angle of the rotation to..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload the proper transformation to make the image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case UIImageOrientationDown case UIImageOrientationDownMirrored transform CGAffineTransformTranslate transform self.size.width self.size.height..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect rotation share improve this question Simple way to do it #define RADIANS degrees degrees M_PI 180.0 CGAffineTransform leftWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 itemView.transform leftWobble starting point UIView beginAnimations.. M_PI 180.0 CGAffineTransform leftWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 itemView.transform leftWobble starting point UIView beginAnimations @ wobble context itemView UIView setAnimationRepeatAutoreverses YES important UIView.. ... void wobbleEnded NSString animationID finished NSNumber finished context void context if finished boolValue UIView item UIView context item.transform CGAffineTransformIdentity Probably have to play with timing and angles but this should get you started. EDIT I edited the response to add code to put the item back in its original state..
CGImage/UIImage lazily loading on UI thread causes stutter http://stackoverflow.com/questions/1815476/cgimage-uiimage-lazily-loading-on-ui-thread-causes-stutter CGFloat currentHeight CGImageGetHeight imgRef CGRect bounds CGRectMake 0.0f 0.0f 1.0f 1.0f CGAffineTransform transform CGAffineTransformIdentity CGFloat scaleRatioX bounds.size.width currentWidth CGFloat scaleRatioY bounds.size.height currentHeight UIGraphicsBeginImageContext..
MFMailComposeViewController image orientation http://stackoverflow.com/questions/20204495/mfmailcomposeviewcontroller-image-orientation CGFloat width CGImageGetWidth imgRef CGFloat height CGImageGetHeight imgRef CGAffineTransform transform CGAffineTransformIdentity CGRect bounds CGRectMake 0 0 width height if width kMaxResolution height kMaxResolution CGFloat ratio width height if ratio.. orient imageIn.imageOrientation CGFloat boundHeight switch orient case UIImageOrientationUp EXIF 1 transform CGAffineTransformIdentity break case UIImageOrientationUpMirrored EXIF 2 transform CGAffineTransformMakeTranslation imageSize.width 0.0 transform..
How to change an UILabel/UIFont's letter spacing? http://stackoverflow.com/questions/2544905/how-to-change-an-uilabel-uifonts-letter-spacing context UIColor clearColor CGColor CGAffineTransform myTextTransform CGAffineTransformScale CGAffineTransformIdentity 1.f 1.f CGContextSetTextMatrix context myTextTransform draw 1 but invisbly to get the string length. CGPoint p CGContextGetTextPosition..
How can I customize an iOS alert view? http://stackoverflow.com/questions/2600779/how-can-i-customize-an-ios-alert-view like Apple's alert view. Something like this works void initialDelayEnded self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.001 0.001 self.view.alpha 1.0 UIView beginAnimations nil context nil UIView setAnimationDuration kTransitionDuration 1.5.. self UIView setAnimationDidStopSelector @selector bounce1AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 1.1 1.1 UIView commitAnimations void bounce1AnimationStopped UIView beginAnimations nil context nil UIView setAnimationDuration.. self UIView setAnimationDidStopSelector @selector bounce2AnimationStopped self.view.transform CGAffineTransformScale CGAffineTransformIdentity 0.9 0.9 UIView commitAnimations void bounce2AnimationStopped UIView beginAnimations nil context nil UIView setAnimationDuration..
http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle 8 4 imageSize.size.width colorSpace kCGImageAlphaPremultipliedFirst CGContextSetTextMatrix context CGAffineTransformIdentity CGContextSelectFont context fontName 18 kCGEncodingMacRoman CGContextSetRGBFillColor context 0 0 0 1 CGPoint centerPoint.. frame.size.height 8 4 frame.size.width colorSpace kCGImageAlphaPremultipliedFirst CGContextSetTextMatrix context CGAffineTransformIdentity CGContextSelectFont context fontName 18 kCGEncodingMacRoman CGContextSetRGBStrokeColor context ringColorComponents 0 ringColorComponents..
Get PDF hyperlinks on iOS with Quartz http://stackoverflow.com/questions/4080373/get-pdf-hyperlinks-on-ios-with-quartz pageRect.size.height temp rect.size.width rect.origin.x rect.size.height rect.origin.y CGAffineTransform trans CGAffineTransformIdentity trans CGAffineTransformTranslate trans 0 pageRect.size.height trans CGAffineTransformScale trans 1.0 1.0 rect CGRectApplyAffineTransform..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom of your view at the new scale factor. Generally it's suggested that you reset the transform on your view to be CGAffineTransformIdentity and then have your view manually redraw itself at the new size scale. However this causes a problem because UIScrollView.. UIScrollView scrollView withView UIView view atScale float scale contentView setTransformWithoutScaling CGAffineTransformIdentity Code to manually redraw view at new scale here contentView.previousScale scale scrollView.contentSize contentView.frame.size..
UIImagePickerController camera preview is portrait in landscape app http://stackoverflow.com/questions/538041/uiimagepickercontroller-camera-preview-is-portrait-in-landscape-app image.CGImage CGFloat width CGImageGetWidth imgRef CGFloat height CGImageGetHeight imgRef CGAffineTransform transform CGAffineTransformIdentity CGRect bounds CGRectMake 0 0 width height if width kMaxResolution height kMaxResolution CGFloat ratio width height if ratio.. boundHeight UIImageOrientation orient image.imageOrientation switch orient case UIImageOrientationUp EXIF 1 transform CGAffineTransformIdentity break case UIImageOrientationUpMirrored EXIF 2 transform CGAffineTransformMakeTranslation imageSize.width 0.0 transform..
Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees? http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees Currently my code looks like this wrapped in a beginAnimations commitAnimations block scale CGAffineTransformScale CGAffineTransformIdentity 5.0f 5.0f swirl CGAffineTransformRotate scale M_PI player setTransform swirl player setAlpha 0.0f But I find that if I try..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case UIImageOrientationDown case UIImageOrientationDownMirrored transform CGAffineTransformTranslate..
how to create iphone's wobbling icon effect? http://stackoverflow.com/questions/929364/how-to-create-iphones-wobbling-icon-effect Simple way to do it #define RADIANS degrees degrees M_PI 180.0 CGAffineTransform leftWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 itemView.transform.. CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 CGAffineTransform rightWobble CGAffineTransformRotate CGAffineTransformIdentity RADIANS 5.0 itemView.transform leftWobble starting point UIView beginAnimations @ wobble context itemView UIView setAnimationRepeatAutoreverses.. finished NSNumber finished context void context if finished boolValue UIView item UIView context item.transform CGAffineTransformIdentity Probably have to play with timing and angles but this should get you started. EDIT I edited the response to add code to..
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