Develop Reference

i want implement animation for Floating Button

I want to give a full rotation animation to my floating button, i have the code, but its only animating like rotating half. i want rotate the floating button from a position and it should end with the same position where it started( a full rotation ) , how to do that ?
here is my code , i want some one to modify the value or code
final OvershootInterpolator interpolator = new OvershootInterpolator();
ViewCompat.animate(fab).
rotation(170f).
withLayer().
setDuration(1000).
setInterpolator(interpolator).
start();

Make rotate.xml in res/anim:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<rotate
android:fromDegrees="0"
android:toDegrees="360"
android:pivotX="50%"
android:pivotY="50%"
android:repeatCount="0"
android:duration="1000" />
</set>
Then in code:
FloatingActionButton mFloatingButton = view.findViewById(R.id.myFloatingButton);
Animation mAnimation = AnimationUtils.loadAnimation(this, R.anim.rotate);
mFloatingButton.startAnimation(mAnimation);

Android text view transition

I am new to android development. I want to create a splash screen with two text views. In this splash screen I want two transitions
1) Text View 1 transition from top to center
2) text View 2 transition from bottom to center
Both transitions should be performed at the same time
how to achieve this ?
Thanks,

Creat an xml file in your anim folder name bottom_to_top.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="2000"
android:fillAfter="true"
android:fromYDelta="100%p"
android:toYDelta="0%p" />
</set>
and your oncreat you add this
TextView textview= (TextView) findViewById(R.id.textview);
Animation bottomToTop = AnimationUtils.loadAnimation(this, R.anim.bottom_to_top);
textview.startAnimation(bottomToTop);
and from top to bottom animation
create an xml file by name top_bottom.xml in your anim folder
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="2000"
android:fillAfter="true"
android:fromYDelta="-100%p"
android:toYDelta="0%p" />
</set>
and place in java
TextView textview2= (TextView) findViewById(R.id.textview2);
Animation topTobottom = AnimationUtils.loadAnimation(this, R.anim.top_bottom);
textview2.startAnimation(topTobottom );
Hope this helps you

Fade animation - not constant behavior Android

I want to make a Fade Out and In Animation every time I click a button.
I started to check only the fade out and on the first click it seems the Fade Out works just fine. But when I click again the animation fade from top to bottom, making it look bad and cut.
The Animation:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<alpha android:fromAlpha="1.0"
android:toAlpha="0.0"
android:interpolator="#android:anim/accelerate_interpolator"
android:duration="1000" />
</set>
The Code:
Animation fadeOut = AnimationUtils.loadAnimation(myActivity.this, R.anim.fade_out);
LinearLayout myBackground=(LinearLayout)findViewById(R.id.myBackground);
myBackground.setAnimation(fadeOut);
What am I missing? Thanks!

Make anim in following folder ris->anim->fade_anim.xml
Add below xml
<alpha
android:duration="2000"
android:fromAlpha="1"
android:toAlpha="0.0"
android:repeatCount="infinite"/>
Got to java class
//make animation object
final Animation myAnim = AnimationUtils.loadAnimation(getContext(), R.anim.bounce_anim);
myAnim.setRepeatMode(Animation.INFINITE);
//get View on which on you want to apply animation I am applying on imageView
mLayout.findViewById(R.id.imageView).startAnimation(myAnim);

Android tween animation blinks fast and doesn't work

I am trying to make a TextView scale and fade out. My TextView is inside a layout file that is included into my activity's layout with
<include android:id="#+id/hud" layout="#layout/hud" android:layout_alignParentBottom="true"/>
Now, I can apply a scale animation from within the Java code like this:
TextView multiplier = (TextView)findViewById(R.id.hudMultiplier);
ScaleAnimation s = new ScaleAnimation(1.0f, 3.0f, 1.0f,3.0f);
s.setDuration(5000);
multiplier.startAnimation(s);
And it works nicely, but I want that animation (and a bunch of others) from an xml file. So I made this file:
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://shemas.android.com/apk/res/android"
android:shareInterpolator="false">
<scale
android:pivotX="50%"
android:pivotY="100%"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:toXScale="10.0"
android:toYScale="10.0"
android:duration="5000"
android:interpolator="#android:anim/accelerate_decelerate_interpolator"
/>
<alpha
android:fromAlpha="1.0"
android:toAlpha="0.1"
android:duration="2000"
android:startOffset="2000">
</alpha>
</set>
I am trying to apply the animation with this code:
TextView multiplier = (TextView)findViewById(R.id.hudMultiplier);
AnimationSet an = (AnimationSet) AnimationUtils.loadAnimation(getApplicationContext(), R.anim.multiplier);
multiplier.startAnimation(an);
What happens now is that the TextView blinks for a fraction of a second and nothing actually happens.
I've tried:
removing the alpha animation - no change
removing the start offset - no change
change the animation with one from the android documentation - no change
change AnimationSet to Animation - no change
change getApplicationContext() to this, MyActivity.this - no change
change getApplicationContext() to null - kills the application
What am I missing?
The project is targeted at Android 1.6 and I'm testing in a 2.3 emulator.

This seems to make a difference, for me anyway!
Change shemas to schemas in the Set element.
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://shemas.android.com/apk/res/android"
android:shareInterpolator="false">

try this:
an = AnimationUtils.loadAnimation(this, android.R.anim.fade_out);

Using fade in animation for a view

I want to have a View that initially is invisible and when I press a button, it becomes visible with a fade in animation. I'm using the AlphaAnimation for the fading effect. The problem is that if I make the view invisible the animation can't be seen.

Suppose you have an ImageView named imageView and an animation file your_fade_in_anim.xml inside your res\anim\ folder:
ImageView imageView = (ImageView) findViewById(R.id.imageView);
Animation fadeInAnimation = AnimationUtils.loadAnimation(this, R.anim.your_fade_in_anim);
// Now Set your animation
imageView.startAnimation(fadeInAnimation);
Your XML
<?xml version="1.0" encoding="UTF-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<alpha
android:fromAlpha="0.0"
android:toAlpha="1.0"
android:interpolator="#android:anim/accelerate_interpolator"
android:duration="[duration (in milliseconds)]"
android:repeatCount="infinite" />
</set>
Replace the brackets with your actual duration.

Provide an AnimationListener to the Animation and make the View visible as soon as the Animation starts.
http://developer.android.com/reference/android/view/animation/Animation.AnimationListener.html

Instead of the infinite repeat count and hiding/viewing your View, I suggest to just not repeat the animation and initially start with the alpha channel set to maximum. Then you can use:
<?xml version="1.0" encoding="UTF-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<alpha
android:fromAlpha="0.0"
android:toAlpha="1.0"
android:interpolator="#android:anim/accelerate_interpolator"
android:duration="[duration (in milliseconds)]"
android:repeatCount="0" />
</set>
And you're done. No need for a Listener, hiding or showing. Just as simple.