android-animation

问题 Hi I am trying to animate the height of a view in android say every 5 seconds :- height goes from 0 to 5 height goes from 5 to 10 height goes from 10 to 3 etc I am using the code below :- public class ShowAnimation extends Animation{ float finalHeight; View imageview; public ShowAnimation(View view,float deltaheight){ this.imageview=view; this.finalHeight=deltaheight; } protected void applyTransformation(float interpolatedtime,Transformation t){ imageview.getLayoutParams().height=(int)

问题 I need an advice how to create some animations I want to add in my buttons. Actually I have the animation code, the thing which I need is how to set properly the timing of each one. Here is what I tried already : fest.setVisibility(View.INVISIBLE); handler.postDelayed(new Runnable() { @Override public void run() { fest.setVisibility(View.VISIBLE); fest.startAnimation(anim); handler.removeCallbacks(this); } }, 500); This is the things which I did for 7 buttons. First I set the visibility to

问题 I need an advice how to create some animations I want to add in my buttons. Actually I have the animation code, the thing which I need is how to set properly the timing of each one. Here is what I tried already : fest.setVisibility(View.INVISIBLE); handler.postDelayed(new Runnable() { @Override public void run() { fest.setVisibility(View.VISIBLE); fest.startAnimation(anim); handler.removeCallbacks(this); } }, 500); This is the things which I did for 7 buttons. First I set the visibility to

问题 I'm trying to do some color animation on the action bar by using a TransitionDrawable. The code I'm trying is pretty simple, during onCreate, I put the transition drawable as the actionbar background: Drawable d = getResources().getDrawable(R.drawable.actionbar); actionbarDrawable = new TransitionDrawable(new Drawable[] { d, d }); getActionBar().setBackgroundDrawable(actionbarDrawable); then on the event I replace the second drawable of the TransitionDrawable and ask to animate it.

问题 I want to make collasping toolbar, in which is my custom Layout . On the image below is presented use of new released design.support lib. On the img.1, the element (ImageView) is disappearing. In my project I want to disappear a Layout. Because inside Layout will be ViewPager it can not be resized like the image, it should dissolve in Toolbar background - should become transparent. img. 1 Additionaly I want to open/hide ToolbarLayout by moving ToolbarFooter - belt to move - bright blue Layout

问题 I am trying to make an animation with two textviews. Both are in a relative layout. The functionality of the animation is left textview will go little bit left and at the same time right textview will also go little bit left. I have tried: http://nineoldandroids.com/ and default way. But for both case I am getting a gap during the process. I already put one question but i am not getting any positive reply: Android slider animation is not synchronized Nineoldandroids code: xml file:

问题 I need capture the mark to draw a figure on canvas in Android, and the effect just like the follow gif: Well, as far, I can draw a side with constant velocity by ValueAnimator . However, I just only can draw one side at one time, because I can't save the last side when drawing the next side. So, is there a good way to solve the problem? Code for draw a line slowly by ValueAnimator： GraphicsView.java public class GraphicsView extends View { private int stepX, stepY = 0; private int startX,

问题 I have a DialogFragment which I show() when the user clicks a button on my App. I would like to set an animation to make a Z-axix rotation on the DialogFragment when it launches (i.e. a 3d card flip animation). I have succesfully used the windowAnimationStyle and the following style to do simple animations (using the View Animation framework) when the DialogFragment is shown: <style name="windowAnimationCardFlip" parent="@android:style/Animation.Dialog"> <item name="android

问题 I have this main ListView (retrieved using this.getListView() ) in a ListActivity properly populated from a SQLite database. A click on one of its items (entries) calls another activity A2 using startActivityForResult() . I would like to animate that SINGLE entry WHEN the user gets back to the ListActivity. (So I suppose I need to override the onActivityResult() method) How can I animate a single entry once the window gained focus and after the list is updated using notifyDataSetChanged() ? I

问题 I would like to create an animation but I don't know how to get started with it. Here's this image. I want the red and with stripes to animate from left to right. (Translate)Animations are not new to me. Moving an object on the screen is easy, because we have a background behind it. In my case it's the background that should be moving. If I use an image then there will be no way to fill the empty space the image leaves behind while moving to the right. One idea is to fill the screen initially