Develop Reference

ImageView not reseting to original location after animation

I have a swipe recognizer that calls this function when a swipe is detected. The alpha animation works great, but after the animation, the image is not resetting to its original location in the center.
Currently, the image stays on the left.... I've searched all over and it seems that I'm implementing the animation correctly.
I'm using a RelativeLayout and swipeImageView is an empty imageview in the middle of my layout.
swipeImageView.bringToFront();
swipeImageView.setImageDrawable(getResources().getDrawable(R.drawable.skip4x));
ObjectAnimator nextGroupLeft = ObjectAnimator.ofFloat(swipeImageView, "x", -250f);
nextGroupLeft.setDuration(1000);
ValueAnimator fadeAnim = ObjectAnimator.ofFloat(swipeImageView, "alpha", 1f, 0f);
fadeAnim.setDuration(1000);
AnimatorSet animSetXY = new AnimatorSet();
animSetXY.playTogether(nextGroupLeft, fadeAnim);
animSetXY.start();

Trying clearing the animations. When this line is executed, the animations should stop and the ImageView should return to its original state.
swipeImageView.clearAnimation();

Android property animation relative to view's height

I initialize ObjectAnimator like this;
ObjectAnimator anim = ObjectAnimator.ofFloat(view, "translationY", 0f, view.getHeight());
But when the first time animation runs, view.getHeight() method returns 0. So it does not animate. Second time i run the animation, it animates right. Is there a way to translate views relative to their width or height properly?

Android Image View Animation leaving behind trail

I am animating an ImageView from the center of the screen to the top-left using an Animation Set.I am Translating and Scaling the View.
Heres the code snippet.
AnimationSet tempAnimation=new AnimationSet(true);
TranslateAnimation anim = new TranslateAnimation( 0,xPos, 0, yPos );
anim.setFillAfter( true );
anim.setFillEnabled(true);
ScaleAnimation scaleanimation = new ScaleAnimation(1, (float)0.22, 1, (float)0.22, Animation.RELATIVE_TO_SELF, (float)0.5, Animation.RELATIVE_TO_SELF, (float)0.5);
scaleanimation.setDuration(1000);
scaleanimation.setFillEnabled(true);
scaleanimation.setFillAfter(true);
tempAnimation.addAnimation(scaleanimation);
tempAnimation.addAnimation(anim);
tempAnimation.setDuration(1000);
// This takes care that the ImageViews stay in their final positions after animating .
tempAnimation.setFillEnabled(true);
tempAnimation.setFillAfter(true);
mimageView.startAnimation(tempAnimation);
So,the problem is that it is leaving behind a trail /previous positions for just a brief moment.But it doesnt look good or smooth.I have noticed that if I use only 1 animation it is fine but using the animation set causes the trail.Are there any tips to avoid this?
Cheers

Found the answer eventually at https://code.google.com/p/android/issues/detail?id=22151.
Scale and Translation Animations have a problem on Android 2.3 .The simplest way to fix this is to add a small transparent padding around the image.In the code shown above,Just add
mimageView.setPadding(1,1,1,1);
Works like a charm!

How to rotate a drawable by ObjectAnimator?

Alphaing a drawable work well like this:
if(mAlphaAnimation == null){
mAlphaAnimation = ObjectAnimator.ofFloat(this, "alpha", 0.0f,1.0f).setDuration(TARGET_ANIM_ALPHA_DURATION);
mAlphaAnimation.setInterpolator(new AccelerateDecelerateInterpolator());
mAlphaAnimation.setStartDelay(TARGET_ANIM_ALPHA_DELAY_BASE*power);
mAlphaAnimation.setRepeatCount(ValueAnimator.INFINITE);
mAlphaAnimation.setRepeatMode(ValueAnimator.REVERSE);
mAlphaAnimation.addUpdateListener(this);
}
But if I want rotate a drawable like below , it don's work.
private void createRotateAnim(float fromDegress,float toDegress,int duration){
if(mRotateAnimation == null){
mRotateAnimation = ObjectAnimator.ofFloat(this, "rotation",fromDegress,toDegress).setDuration(duration);
mRotateAnimation.setStartDelay(100);
mRotateAnimation.setInterpolator(new AccelerateInterpolator());
mRotateAnimation.addUpdateListener(this);
}
}
Anyone can help me to fix this issue, or these is any other way to create a rotation drawable animation .
I am sorry to my poor English.

Try with ObjectAnimator instead.
ImageView imageview = (ImageView)findViewById(R.id.image);
ObjectAnimator imageViewObjectAnimator = ObjectAnimator.ofFloat(imageview ,
"rotation", 0f, 360f);
imageViewObjectAnimator.setDuration(1000); // miliseconds
imageViewObjectAnimator.start();
EDIT
Since this question draw some attention let me to explain why to use ObjectAnimator instead of other Transition animators
The thing about using ObjectAnimator is that it's moving both the visible and the clickable area of the item, if you use another animation method, for example Transition Animation or some other Animators, and let's say if you want to move the Button from the bottom left of the screen to the top left, it will only move the visible area but not the Button itself, the clickable area will still be on the previous position, in this case the clickable area will still be on the bottom left instead of the top left where you moved the button.
If you do the same with ObjectAnimator, both the visible area, and the clickable area will move the the desired location.

Try this simple Rotation Animation applied to a image.
ImageView imageview = (ImageView)findViewById(R.id.myimage);
RotateAnimation rotate = new RotateAnimation(180, 360, Animation.RELATIVE_TO_SELF,
0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotate.setDuration(500);
imageview.startAnimation(rotate);
This answer is just for a sake of question, it is correct that Clickable area will be different than View's current position. Please check this question for making clickable area correct. Button is not clickable after TranslateAnimation

Android: use animation outside the view area

I have an xml with 12 image. for example 3*4 table, where each cell contains an image.
In the OnCreate I write animation every image:
AnimationSet set = new AnimationSet(true);
Animation animation = new TranslateAnimation(
Animation.ABSOLUTE, -300.0f, Animation.START_ON_FIRST_FRAME, 0.0f,
Animation.ABSOLUTE, -800.0f, Animation.START_ON_FIRST_FRAME, 0.0f);
animation.setFillBefore(true);
animation.setFillAfter(true);
animation.setFillEnabled(true);
animation.setDuration(5000);
I want to start the animation from the top left of the screen and to end the animation to real position. But the animation is only use the image or cell region. Is there any solution to the animation, use the whole screen?

If they're all under the same parent view, you can set the parent's clipChildren attribute to false, which would allow the animation to extend beyond its own constraints (as long as it still remains within the boundaries of its parent):
android:clipChildren="false"