Develop Reference

Animate view in relative layout to align parent top

I have a relative layout (let's call it A), inside a scroll view, inside a relative layout (we will call this layout B)
What I'm trying to do is remove a child from A, insert it into B and align it to the parent top (right below the action bar).
I've been trying to animate this slide up, and back down to it's original position without any luck.
Any idea how can I perform this animation?

A very late reply, but here's how I managed this:
center_to_top_center.xml (located in res/anim/)
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="1000"
android:fillAfter="true"
android:fromXDelta="0%p"
android:fromYDelta="00%p"
android:toXDelta="00%p"
android:toYDelta="-40%p" />
</set>
HomeActivity.java
public class HomeActivity extends FragmentActivity {
#InjectView(R.id.imageView2)
ImageView mImageView;
#Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_home, false);
beginLogoAnimation();
}
private void beginLogoAnimation(){
Animation translateAnim= AnimationUtils.loadAnimation(getApplicationContext(),
R.anim.center_to_top_center);
translateAnim.setFillAfter(true);
translateAnim.setFillEnabled(true);
translateAnim.setFillBefore(false);
translateAnim.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
mImageView.startAnimation(translateAnim);
}
}
activity_home.xml
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView2"
android:layout_centerInParent="true"
android:layout_marginTop="15dp"
android:layout_centerHorizontal="true"
android:src="#drawable/logo"
/>

Since you are Animating Layout Changes Try adding this to your layout block:
android:animateLayoutChanges="true"
Source: http://developer.android.com/guide/topics/graphics/prop-animation.html#layout

Animation opens menu incorrectly

I have an issue where my menu in the applications opens in a slightly strange way, I have put a screenshot below to show what I mean. As you can see the menu is showing and moving the fragment out of the way. I want it so that it appears over the top of the existing fragment. I show this using an animation.
The animation code is as follows:
public static void open(final Context context, final RelativeLayout layout){
Animation in = AnimationUtils.loadAnimation(context, R.anim.push_right_out_80);
layout.startAnimation(in);
in.setAnimationListener(new Animation.AnimationListener(){
#Override
public void onAnimationStart(Animation arg0) {
}
#Override
public void onAnimationRepeat(Animation arg0) {
}
#Override
public void onAnimationEnd(Animation arg0) {
TranslateAnimation anim = new TranslateAnimation(0.0f, 0.0f, 0.0f, 0.0f);
layout.startAnimation(anim);
display = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int left = (int) (display.getWidth() * 1.0);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(layout.getLayoutParams());
params.setMargins(left / 2, 0, -left / 2, 0);
params.addRule(RelativeLayout.ABOVE, R.id.container);
layout.setLayoutParams(params);
}
});
}
This calls an xml file within the anim folder which looks like this:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="250"
android:fromXDelta="0"
android:fromAlpha="0.0"
android:toAlpha="0.3"
android:toXDelta="+50%p"/>
</set>
The menu is a listview which is within activity_home.xml and that looks like this:
<RelativeLayout
android:id="#+id/drawer_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/White">
<ListView
android:id="#+id/listMenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ffffff"
android:choiceMode="singleChoice"
android:divider="#android:color/darker_gray"
android:dividerHeight="1dp"
android:listSelector="#android:color/darker_gray"/>
<RelativeLayout
android:id="#+id/fragmentspace"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/White">
</RelativeLayout>
</RelativeLayout>
The menu goes into the ListView and my fragment goes within the Relative Layout.
To close the menu I have this code (not too sure if this will need to be adapted too?)
public static void close(final Context context, final RelativeLayout layout){
Animation out = AnimationUtils.loadAnimation(context, R.anim.push_left_in);
layout.startAnimation(out);
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) layout.getLayoutParams();
params.setMargins(0, 0, 0, 0);
layout.setLayoutParams(params);
}
The close code calls another xml file also in the anim folder, that looks like this:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="250"
android:fromAlpha="0.3"
android:fromXDelta="+50%p"
android:toAlpha="0.0"
android:toXDelta="0"/>
</set>

how to fit RelativeLayout after a Scale Animation

After apply this animation to my (chield)RelativeLayout, my backgroud image has the good size but my Layout seem to continue to take to much place on my Page (parent)RelativeLayout. Some idea?
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true" >
<scale
android:fromXScale="1.0"
android:fromYScale="1.0"
android:toXScale="0.2"
android:toYScale="0.2"
android:duration="700"
>
</scale>
</set>
<RelativeLayout ...>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/chieldLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/bigImage"
>
<Button
style="#style/boutonBrun"
android:id="#+id/btPanier"
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/full22lightgreen"
/>
</RelativeLayout>
</RelativeLayout>
I have add like you propose me a listener to fit my layout with this command :
params.width = (int) getResources().getDimension(R.dimen.size_width);
how can I know the "size_width" that I have to put? Like I ask to scale from 1.0 to 0.2 and finaly put android:layout_width="300dp", I have imagine that "size_width" have to take 60dp (300 * 0.2) but it's very to small compare to size after the animation.

Use animation listener like this
animation.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
// set height for your relative layout here
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});

I'm not sure if i understand your problem correctly but you can add an animation listener to your animation:
yourAnimation.setAnimationListener(new Animation.AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
And in onAnimationEnd try to invalidate your view.
yourView.invalidate();

Finally, I just stop to use the param android:fillAfter="true", he seem to don't change the size of the layout... I just change size of my layout with onAnimationEnd.
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) myRelativeLayout.getLayoutParams();
params.width = (int) getResources().getDimension(R.dimen.little_house_width);
params.height = (int) getResources().getDimension(R.dimen.little_house_height);
setLayoutParams(params);

How to animate a slide in notification view that pushes the content view down

I have two views on the screen
one sits at the top of the screen and on sits directly below it
I need the green view to slide out the top - and make the blue view take up the entire screen as a result
this is what i am trying to do:
-- the problem is , when the animation is finished, the blue view just "jumps" up - and i want it to ease up with the disappearing green view, how do i do that?
slide_in_animation.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="1000"
android:fromYDelta="-100%"
android:toYDelta="0%" />
</set>
slide_out_animation.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="1000"
android:fromYDelta="0%"
android:toYDelta="-100%" />
</set>
MainActivity.java
slideInAnimation = AnimationUtils.loadAnimation(mActivity, R.anim.slide_in_animation);
slideOutAnimation = AnimationUtils.loadAnimation(mActivity,R.anim.slide_out_animation);
slideInAnimation.setAnimationListener(new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
mGreenView.setVisibility(View.VISIBLE);
}
#Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub
}
#Override
public void onAnimationEnd(Animation animation) {
}
});
slideOutAnimation.setAnimationListener(new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
mGreenView.setVisibility(View.GONE);
}
#Override
public void onAnimationRepeat(Animation animation) {
// To change body of implemented methods use File | Settings
// | File Templates.
}
});

This worked for me
First you must import this library: http://nineoldandroids.com/
The import is done by importing existing android project into your workspace, afterwards right click your Poject -> Properties -> Android. Here you will see a library section, click the Add button and add the nineoldandroids library.
First off, here is the layout xml used for this to work:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/parentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<FrameLayout
android:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" >
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:divider="#android:color/transparent"
android:fastScrollEnabled="false"
android:listSelector="#android:color/transparent"
android:scrollbars="vertical"
android:smoothScrollbar="true" />
<View
android:id="#+id/greenView"
android:layout_width="match_parent"
android:layout_height="150dp"
android:background="#ff00ff00"
android:alpha="0"/>
</FrameLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/animate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="clickHandler"
android:text="animate" />
<Button
android:id="#+id/close"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="clickHandler"
android:text="close" />
</LinearLayout>
Notice: Both the ListView and the green View could be layouts of any types with any kind of content.
And next a proof of concept Activity.
public class TestActivity extends Activity {
private View greenView;
private ListView listView;
private int greenHeight;
private boolean isShowingBox;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
// The animated view
greenView = (View)findViewById(R.id.greenView);
listView = (ListView)findViewById(R.id.listView1);
// Instanciating an array list (you don't need to do this, you already have yours)
ArrayList<String> your_array_list = new ArrayList<String>();
your_array_list.add("1");
your_array_list.add("2");
your_array_list.add("3");
your_array_list.add("4");
your_array_list.add("5");
your_array_list.add("6");
your_array_list.add("7");
your_array_list.add("8");
your_array_list.add("9");
your_array_list.add("10");
your_array_list.add("11");
your_array_list.add("12");
your_array_list.add("13");
your_array_list.add("14");
your_array_list.add("15");
// This is the array adapter, it takes the context of the activity as a first // parameter, the type of list view as a second parameter and your array as a third parameter
ArrayAdapter<String> arrayAdapter =
new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, your_array_list);
listView.setAdapter(arrayAdapter);
final LinearLayout layout = (LinearLayout)findViewById(R.id.parentLayout);
final ViewTreeObserver vto = layout.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT < 16) {
layout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
layout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
greenHeight = greenView.getHeight();
}
});
}
public void clickHandler(View v) {
if (isShowingBox) {
isShowingBox = false;
slideOut(1500, 0);
} else {
isShowingBox = true;
slideIn(1500, 0);
}
}
private void slideIn(int duration, int delay) {
AnimatorSet set = new AnimatorSet();
set.playTogether(
// animate from off-screen in to screen
ObjectAnimator.ofFloat(greenView, "translationY", -greenHeight, 0),
ObjectAnimator.ofFloat(listView, "translationY", 0, greenHeight),
ObjectAnimator.ofFloat(greenView, "alpha", 0, 0.25f, 1)
// add other animations if you wish
);
set.setStartDelay(delay);
set.setDuration(duration).start();
}
private void slideOut(int duration, int delay) {
AnimatorSet set = new AnimatorSet();
set.playTogether(
// animate from on-screen and out
ObjectAnimator.ofFloat(greenView, "translationY", 0, -greenHeight),
ObjectAnimator.ofFloat(listView, "translationY", greenHeight, 0),
ObjectAnimator.ofFloat(greenView, "alpha", 1, 1, 1)
// add other animations if you wish
);
set.setStartDelay(delay);
set.setDuration(duration).start();
}
}
Important note: Remember to import the AnimatorSet and ObjectAnimator from nineoldandroids in your class and not the Android SDK ones!!!

One potential solution that makes a nice and fluid exit is using the weight attribute of LinearLayout with a ValueAnimator. Assuming you're using LinearLayout as your parent view for your green and blue blocks, your code would look something like this.
layout.xml
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<!--Let's assume this is the view you wish you disappear-->
<View
android:id="#+id/view1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"/>
<View
android:id="#+id/view2"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="2"/>
</LinearLayout>
Now with this, in your code you can use the ValueAnimator as follows:
public class MainActivity extends Activity implements AnimatorUpdateListener
{
View view1;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
view1 = (View)findViewById(R.id.view1);
}
public void someAction()
{
//This is the important part, because it is FROM the first value TO
//the second. Notice that it must be a float type
ValueAnimator anim = ValueAnimator.ofFloat(1f, 0f);
anim.setDuration(200);
anim.addUpdateListener(this);
anim.start();
}
#Override
public void onAnimationUpdate(ValueAnimator animation)
{
view1.setLayoutParams(new LinearLayout.LayoutParams(0,
LayoutParams.MATCH_PARENT,
(Float) animation.getAnimatedValue()));
}
}
The ValueAnimator will automatically calculate the increments and execute them to get the smooth transition you want with the added benefit of keeping your view running.
You may also need to handle some strange UI occurrences as a result of shrinking the view (i.e., TextViews may act funny on the transition out), but I didn't run into too much trouble patching those up and keeping it neat.
Good luck! Hope this helps.

Use following code.
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<scale
android:duration="500"
android:fromXScale="1.0"
android:fromYScale="0.0"
android:interpolator="#android:anim/linear_interpolator"
android:toXScale="1.0"
android:toYScale="1.0" />
</set>

Delays within the Animation (TranslateAnimation)

Is there a way to have the Animation pause for a half a second?
I am trying to make an infinite animation using the TranslateAnimation API. So, I use the RepeatCount as Infinite. I also noticed that there's a setStartOffset(...) method that covers the case when I'd like to have a delay in starting the animation. However, I can't find a way to have a delay before each 'restart'. Since animation is gonna happen infinite amount of times, every time the animation restarts I need to put a delay in.
Any ideas?
Thanks!!

Here is an example:
First the layout (main.xml) with an image we would like to animate:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
</LinearLayout>
Next one is the animation. Placed in res/anim and is called anim_img.xml. The file contains the translation animation with android:startOffset="500" (in millisec). This will set the offset, which is used every time animation starts:
<?xml version="1.0" encoding="utf-8"?>
<set>
<translate
xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1000"
android:fromXDelta="0%"
android:fromYDelta="0%"
android:toXDelta="0%"
android:toYDelta="100%"
android:zAdjustment="top"
android:repeatCount="infinite"
android:startOffset="500"/>
</set>
And last but not least - the activity. Which starts the animation:
public class StackOverflowActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageView iv_icon = (ImageView) findViewById(R.id.imageView1);
Animation a = AnimationUtils.loadAnimation(this, R.anim.anim_img);
a.setFillAfter(true);
a.reset();
iv_icon.startAnimation(a);
}
}

To achieve a pause of x milliseconds between each restart:
myAnimation.setAnimationListener(new AnimationListener(){
#Override
public void onAnimationStart(Animation arg0) {
}
#Override
public void onAnimationEnd(Animation animation) {
}
#Override
public void onAnimationRepeat(Animation animation) {
myAnimation.setStartOffset(x);
}
});

myanimation.setStartDelay(int);