Develop Reference

Hiding image view before animating it

I have an Image view, i am applying animation to it, it has to move up and down on the screen when the button is pressed. But before the button is pressed i want the image hidden.
I am using the following code:
final Animation animation = AnimationUtils.loadAnimation(this,
R.anim.aim);
animation.reset();
maxName.startAnimation(animation);
anim.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="4000"
android:fromYDelta="15%p"
android:repeatCount="2"
android:repeatMode="reverse"
android:toYDelta="60%p" />
What changes should i make in order to hide the image before the button is pressed.
Thank-you in advance.

Try to add
android:visibility="invisible"
to your element in its xml file? You can also use gone instead of invisible if you want the element to occupy no space in your layout.
Then when the button is pressed, you can change the visibility of the element at runtime:
final Animation animation = AnimationUtils.loadAnimation(this,
R.anim.aim);
animation.reset();
maxName.setVisibility(View.VISIBLE);
maxName.startAnimation(animation);

Add AnimationListener to your animation .. and write down
yourImageview.setvisibility(view.gone) in onAnimationStart
yourImageview.setvisibility(view.visible) in onAnimationEnd

Android animation only works once?

So i'm trying to do 2 animations simultaneously, one to move a textview, and one to show a linearlayout (also 2 animations to hide them). I have another animation working as intended to show/hide a seperate layout. When i execute showing the view with 2 animations, it works once, it hides fine, but then doesn't work again. Then when i show the other view, it plays all 3 animations (not intended). I can't figure out why this is happening? When i try to show the 2 animations it does nothing, but then when i try the other show view its like it was added to a queue and it shows all 3.
My code for initiating the two animations:
LinearLayout layoutMsgs = (LinearLayout)findViewById(R.id.layoutMsgs);
Animation anim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.msgs_show);
anim.setAnimationListener(new AnimListener(layoutMsgs, View.VISIBLE)); // sets visibility on animation end
layoutMsgs.startAnimation(anim);
TextView tvMsgs = (TextView)findViewById(R.id.tvMsgs);
Animation tvAnim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.tvmsgs_show);
tvMsgs.startAnimation(tvAnim);
My code for hiding the two animations:
LinearLayout layoutMsgs = (LinearLayout)findViewById(R.id.layoutMsgs);
Animation animLayout = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.msgs_hide);
animLayout.setAnimationListener(new AnimListener(layoutMsgs, View.INVISIBLE));
layoutMsgs.startAnimation(animLayout);
TextView tvMsgs = (TextView)findViewById(R.id.tvMsgs);
Animation animMsgs = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.tvmsgs_hide);
tvMsgs.startAnimation(animMsgs);
Then this is the other animation that is working fine, it's only one animation, no textView, just a layout
LinearLayout pokeLayout = (LinearLayout)findViewById(R.id.layoutPokes);
Animation anim = AnimationUtils.loadAnimation(getApplicationContext(), R.anim.poke_show);
anim.setAnimationListener(new AnimListener(pokeLayout, View.VISIBLE));
pokeLayout.startAnimation(anim);
So how can i fix this? Sorry if my explanation is bad i'm finding it difficult to explain all the details, please ask for any missing information.

solved by using solution in this post Android: Using ObjectAnimator to translate a View with fractional values of the View's dimension
wasn't pretty as I had to create seperate translate X and translate Y res files for each view I need to move.. ended up with like 15 anim files. Would still like to know if theres a better solution

ObjectAnimator in android

I want to show a objectanimator in android for a imageview.This imageview should move from top of the screen to about 30 pixels down from top of the screen.Once it(imageview) reaches there and onclick of the imageview the image view should disappear.I have read that i cannot use translate animation as the onclick event wont get fired and hence i will have to use Objectanimator.
Can somebody please help me out in this ...stuck up for a long time now.
Following is my code i have used however it does not seem to work also i do not understand what parameters(for that points) i need to pass.
ObjectAnimator scaleXOut = ObjectAnimator.ofFloat(tv, "translationX", 1f, 9f);
AnimatorSet set = new AnimatorSet();
set.play(scaleXIn);
set.setDuration(1000);
set.start();

you can use translateAnimation and add an animationlistener so when animation ends its onAnimationEnd() method will fired up, so inside it you can put the codes that was in onclick method, or you can put an if statement inside your onclicked method to check whether animation ends, for more about animations you can check out these resources
http://www.youtube.com/playlist?list=PLxLa2tjhVPOZ9KMqanm12_xPDBjKPZWgM
and
http://www.vogella.com/articles/AndroidAnimation/article.html

Apply Two Animations to the Same View?

I applied an entry animation to one of my ImageButton (fade_in.xml which is in the project anim/ folder). Now, after a button click, I want to apply an exit animation (fade_out.xml which is in the same folder)
When I do that, the entry animation happens. However, the exit one do NOT !! It seems that each View will accept ONLY one animation.
Is this true? How can I work around this problem?
-
-
UPDATE:
This is in the onCreate() method for setting the entry animation:
Animation fade = AnimationUtils.loadAnimation(this, R.anim.fade_in);
fade.setStartOffset(600);
img.startAnimation(fade);
img.setvisibility(View.VISIBLE);
And this is in the onClick() method for some button b1:
Animation fade2 = AnimationUtils.loadAnimation(this, R.anim.fade_out);
fade.setStartOffset(500);
img.startAnimation(fade2);
img.setvisibility(View.INVISIBLE);

You can use ViewFlipper with getInAnimation and getOutAnimation methods.
Other solution is setting animation in your code(as far I understand you set animation in xml file).

Android animation sequence

I am facing problem in getting a sequence of animation on a particular view.
I used animationset in my code and i have set the offset for each animation and the duration for the animation correctly.
somebody pls help with this.
Thanks...

To play back animations sequentially, just use the set the android:ordering property of the <set> tag to have the value "sequentially".
Then, all set items will be animated in their sequence of declaration.

For page transition use the below snippet
pageTransition(Context context, View view){
Animation mAnim = AnimationUtils.loadAnimation(context, R.anim.slide_top_to_bottom);
mAnim.setRepeatMode(Animation.ABSOLUTE);
view.startAnimation(mAnim);
}
refer the below link for more details deVogella