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2014/10/15 ¤U¤È 10:11:31
iphone Programming Glossary: movementHow can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to.. resizeAnimation.fillMode kCAFillModeForwards resizeAnimation.removedOnCompletion NO Set up path movement CAKeyframeAnimation pathAnimation CAKeyframeAnimation animationWithKeyPath @ position pathAnimation.calculationMode..
iPhone Keyboard Covers UITextField http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-uitextfield animateTextField textField up NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance.. UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations.. int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context nil UIView setAnimationBeginsFromCurrentState..
Changing my CALayer's anchorPoint moves the view http://stackoverflow.com/questions/1968017/changing-my-calayers-anchorpoint-moves-the-view that anchorPoint while maintaining the same position moves the layer. In order to prevent this movement you would need to adjust the layer's position to account for the new anchorPoint. One way I've done..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare to an array and compare I want to achieve the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement... of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager startDeviceMotionUpdatesToQueue NSOperationQueue.. values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the recorded one. The thing is how can I compare..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to the shopping cart I want to create an effect where an image.. 40.0f imageFrame.size.height 40.0f imageFrame.size.width resizeAnimation.fillMode kCAFillModeForwards resizeAnimation.removedOnCompletion NO Set up path movement CAKeyframeAnimation pathAnimation CAKeyframeAnimation animationWithKeyPath @ position pathAnimation.calculationMode kCAAnimationPaced pathAnimation.fillMode kCAFillModeForwards..
iPhone Keyboard Covers UITextField http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-uitextfield YES void textFieldDidEndEditing UITextField textField self animateTextField textField up NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context.. self animateTextField textField up NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context nil UIView setAnimationBeginsFromCurrentState.. NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context nil UIView setAnimationBeginsFromCurrentState YES UIView setAnimationDuration movementDuration..
Changing my CALayer's anchorPoint moves the view http://stackoverflow.com/questions/1968017/changing-my-calayers-anchorpoint-moves-the-view position is relative to the anchorPoint of the layer changing that anchorPoint while maintaining the same position moves the layer. In order to prevent this movement you would need to adjust the layer's position to account for the new anchorPoint. One way I've done this is to grab the layer's bounds multiply the bounds' width..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare orientation to an array and compare I want to achieve the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager.. following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager startDeviceMotionUpdatesToQueue NSOperationQueue currentQueue withHandler ^ CMDeviceMotion motion NSError.. attitude.yaw I'm thinking that I could store these values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the recorded one. The thing is how can I compare the two arrays in a smart way They will never have exactly the..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path can I animate the movement of a view or image along a curved path I am developing a commerce application. When I add an item to the shopping cart.. imageFrame.size.width resizeAnimation.fillMode kCAFillModeForwards resizeAnimation.removedOnCompletion NO Set up path movement CAKeyframeAnimation pathAnimation CAKeyframeAnimation animationWithKeyPath @ position pathAnimation.calculationMode kCAAnimationPaced..
iPhone Keyboard Covers UITextField http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-uitextfield textField self animateTextField textField up NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance.. up NO void animateTextField UITextField textField up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context nil.. up BOOL up const int movementDistance 80 tweak as needed const float movementDuration 0.3f tweak as needed int movement up movementDistance movementDistance UIView beginAnimations @ anim context nil UIView setAnimationBeginsFromCurrentState..
Changing my CALayer's anchorPoint moves the view http://stackoverflow.com/questions/1968017/changing-my-calayers-anchorpoint-moves-the-view of the layer changing that anchorPoint while maintaining the same position moves the layer. In order to prevent this movement you would need to adjust the layer's position to account for the new anchorPoint. One way I've done this is to grab the..
Finding the direction of scrolling in a UIScrollView? http://stackoverflow.com/questions/2543670/finding-the-direction-of-scrolling-in-a-uiscrollview direction is fairly straightforward but keep in mind that the direction can change several times over the course of a movement. For example if you have a scrollview with paging turned on and the user swipes to go to the next page the initial direction..
UILongPressGestureRecognizer gets called twice when pressing down http://stackoverflow.com/questions/3319591/uilongpressgesturerecognizer-gets-called-twice-when-pressing-down middle or end of the event and act accordingly. i.e. you can through away all events after the start or only look at movement as you need. From the Class Reference Long press gestures are continuous. The gesture begins UIGestureRecognizerStateBegan.. been pressed for the specified period minimumPressDuration and the touches do not move beyond the allowable range of movement allowableMovement . The gesture recognizer transitions to the Change state whenever a finger moves and it ends UIGestureRecognizerStateEnded..
How to create custom easing function with Core Animation? http://stackoverflow.com/questions/5161465/how-to-create-custom-easing-function-with-core-animation t curve and not time position curves. For instance easeOutBounce T t returns a new t . Then that t is used to plot the movement or whatever property we should animate . So I'd like to create a complex custom CAMediaTimingFunction but I have no clue.. in to steps. Very educational I want to animate an object along a line from point a to b but I want it to bounce its movement along the line using the easeOutBounce curve above. This means it will follow the exact line from a to b but will accelerate.. than what is possible using the current bezier based CAMediaTimingFunction. Lets make that line any arbitrary curve movement specified with CGPath. It should still move along that curve but it should accelerate and decelerate the same way as in..
http://stackoverflow.com/questions/5214197/simple-iphone-motion-detect I need to detect when the gyroscope accelerometer is activated a certain amount. Basically to detect when there is movement of the device. I don't know anything about Core Motion. Maybe someone can direct me to a starters tutorial or something...
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare orientation to an array and compare I want to achieve the following I want the user to be able to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the.. to record the movement of the iPhone using the gyroscope. And after that the user should be able to replicate the same movement. I extract the pitch roll and yaw using self.motionManager startDeviceMotionUpdatesToQueue NSOperationQueue currentQueue.. that I could store these values into an array if the user is in record mode. And when the user tries to replicate that movement I'm could compare the replicated movement array to the recorded one. The thing is how can I compare the two arrays in a..
Distance moved by Accelerometer http://stackoverflow.com/questions/6645126/distance-moved-by-accelerometer the gyro mouse might work for your application see between 37 00 38 25 in the video. Similar questions track small movements of iphone with no GPS What is the real world accuracy of phone accelerometers when used for positioning how to calculate.. with no GPS What is the real world accuracy of phone accelerometers when used for positioning how to calculate phone's movement in the vertical direction from rest iOS Movement Precision in 3D Space How to use Accelerometer to measure distance for..
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