android-animation

问题 I am working with Android Animation and I have found the Android coordinate system to be quite confusing so I am here to ask this question about how coordinates work in Android. I am following this image for moving one view to another but it seems it's not working: 回答1: This image presents both orientation(Landscape/Portrait) To get MaxX and MaxY, read on. For Android device screen coordinates, below concept will work. Display mdisp = getWindowManager().getDefaultDisplay(); Point mdispSize =

问题 I have to repeat the image sequence I am using with Thread and AnimationDrawable but it is not working continuously. I don't want to stop this animation until next activity is started through button click event. Here is my java code: public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);{ final ImageView splashImage=(ImageView)findViewById(R.id.heartFunction); splashImage.setBackgroundResource(R.drawable.slide_right); splashAnimation = (AnimationDrawable)

问题 I have a MapView that I would like to have an animated Menu of options that slide in from the left of screen and overlays the a MapView when the user clicks an icon on the top navbar. The desired behavior is: 1. User clicks icon on top nav bar 2. Menu slides in from the left, displays buttons with different options. 3. If user select to cancel or return to Mapview, the Menu slides out to the right and disappears. What is the best approach to implement this behavior on top of a MapView? 回答1:

问题 Currently I'm developing a game. This is the details of my game: User should choose the correct image object. I want the images to accelerate from left to right. and when they reach the end, they should re-appear on the activity again. This is the screenshot of what I'm working on: I have 5 imageviews and they should accelerate. Do you have sample code for this type of animation? Any help is truly appreciated. Thanks in advance! EDIT: Tried doing this: <?xml version="1.0" encoding="utf-8"?>

问题 Currently I'm developing a game. This is the details of my game: User should choose the correct image object. I want the images to accelerate from left to right. and when they reach the end, they should re-appear on the activity again. This is the screenshot of what I'm working on: I have 5 imageviews and they should accelerate. Do you have sample code for this type of animation? Any help is truly appreciated. Thanks in advance! EDIT: Tried doing this: <?xml version="1.0" encoding="utf-8"?>

问题 I want to create an animation programmatically to start an activity with zoom effect from touch screen point. With the next I simulate a zoom enter effect: <set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/decelerate_interpolator" > <scale android:duration="@android:integer/config_mediumAnimTime" android:fromXScale="0.0" android:fromYScale="0.0" android:pivotX="50%p" android:pivotY="50%p" android:toXScale="1.0" android:toYScale="1.0" /> </set>

问题 In my Project I would like to scroll list-view animated like in MS power-point animation ' Can anyone suggest me lib for that.. I would like to display list like 回答1: The DevBytes Videos of Chet Haase and Daniel Olshansky are definitly worth watching when you are thinking about ListView animation. Start here https://www.youtube.com/watch?v=8MIfSxgsHIs and click through the videos (on inserting, expanding, deletion animation...). Downloadable resources included, look at https://plus.google.com

问题 I used following code to move a image it works fine but while moving the image not perform a smooth moving. Can anyone find the problem in my code? handler = new Handler(); t = new Timer(); t.scheduleAtFixedRate(new TimerTask() { public void run() { handler.post(new Runnable() { public void run() { if(left<=400){ left=left+1; RelativeLayout.LayoutParams rp = new RelativeLayout.LayoutParams( new ViewGroup.MarginLayoutParams( RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams

问题 I'm working on a rotation animation in Kotlin and I after each Animation I want to set a net rotationStart and rotationEnd where the rotationStart value initially should be set = 0 and afterwards assumes the value of the rotationEnd value after each rotation val rand = Random() var rotStart : Float = 0f var rotEnd : Float = rand.nextFloat(100f) Setting up the rotation like this: var rotateAnimation = RotateAnimation( rotStart, rotEnd, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO

问题 I want to animate the RecyclerView scrolling. I don't want to animate adding or removal of items but rather animate items which are on screen, i.e visible items. What I want is, item settle down smoothly when scrolling is about to finish. I am not sure what approach should I take or how this can be done. I have tried following till now Using RecyclerView.OnScrollListener , when I get onScrolled callback, I find visible items & animate them upside or downside based on scroll direction. But