Android Translate Animation - Permanently Move View to New Position Using Animationlistener

Translate animation on views with position dependencies

Do I have to translate both views plus stretch the main content view or somehow anchor the main content view to the bottom of the screen?

Well, if you don't stretch the main content View then anchoring it to the bottom will cause a gap to appear at the top as soon as the header View moves up. So I think you'll need a set of animations (scale and translate) for it.

Or you use the Transition framework, in this case a ChangeBounds transition will do the job for both Views

View sceneRoot = <someViewGroupContainingBothViews>;
TransitionManager.beginDelayedTransition(sceneRoot, new ChangeBounds());
rlInfoBar.setY(<newY_CoordinateOfHeaderView>);

How to move view permanently in Android

Use and modify the LayoutParams instead.

Android translate animation move to absolute position

Judging from official Documentation it is not possible from XML.
However, you can do this in your Java code. Example:

    view.animate().translationX(0f).translationY(0f).setInterpolator(new AccelerateDecelerateInterpolator()).start();

TranslationX and TranslationY animates to an absolute position. There is also TranslationXBy an TranslationYBy that animate relatively.

Animate/translate view from position of other view

Use ConstraintLayout for your layout, put your view constraints to starting position (here I will animate @+id/view after clicking @+id/fab. Animated view has to be VISIBLE or INVISIBLE - GONE will mess up animation.

    <androidx.constraintlayout.widget.ConstraintLayout
             /*constraint stuff*/>       
                <View
                    android:id="@+id/view"
                    android:layout_width="120dp"
                    android:layout_height="120dp"
                    android:visibility="invisible"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintBottom_toBottomOf="parent" />

                <com.google.android.material.floatingactionbutton.FloatingActionButton
                    android:id="@+id/fab"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="8dp"
                    android:layout_marginBottom="120dp"
                    app:layout_constraintBottom_toTopOf="@+id/bottom_navigation"
                    app:layout_constraintEnd_toEndOf="@+id/symbolList" />

   </androidx.constraintlayout.widget.ConstraintLayout>

There are few options:

Use ObjectAnimator

In your xml file put View that will be animated on fab position:

view = findViewById(R.id.view)
fab = findViewById(R.id.fab)

fab.setOnClickListener {

    view.visibility = View.VISIBLE
    val propertyX = PropertyValuesHolder.ofFloat(View.X, 0f)
    val propertyY = PropertyValuesHolder.ofFloat(View.Y, 0f)
    ObjectAnimator.ofPropertyValuesHolder(view, propertyX, propertyY).apply {
        duration = 2000L
        start()
    }
}

Or use ViewPropertyAnimator (same XML as above)

    fab.setOnClickListener {
      view.animate()
            .x(0f)
            .y(0f)
            .setDuration(2000L)
            .start()
    }

Or use TransitionManager, MotionLayout, scene api or animate ConstraintSet manually.

private fun startAnimation() {

val animationEndConstraints = ConstraintSet().apply {
    clone(container)
    clear(button.id, ConstraintSet.START)
    clear(button.id, ConstraintSet.TOP)
    // instead of parent you can use fab.id
    connect(button.id, ConstraintSet.END, ConstraintSet.PARENT_ID, ConstraintSet.END, 0)
    connect(button.id, ConstraintSet.BOTTOM, ConstraintSet.PARENT_ID, ConstraintSet.BOTTOM, 0)
}
TransitionManager.beginDelayedTransition(container)
animationEndConstraints.applyTo(container)
}

This approach will allow to specify start state as xml layout and end state as xml layout, but you will have less control.

With other view position:

        fab.setOnClickListener {
            view.animate()
                .x(fab.left.toFloat())
                .y(fab.top.toFloat())
                .setDuration(2000L)
                .start()
        }

How to animate a View with Translate Animation in Android

In order to move a View anywhere on the screen, I would recommend placing it in a full screen layout. By doing so, you won't have to worry about clippings or relative coordinates.

You can try this sample code:

main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" android:id="@+id/rootLayout">

    <Button
        android:id="@+id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="MOVE" android:layout_centerHorizontal="true"/>

    <ImageView
        android:id="@+id/img1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="10dip"/>
    <ImageView
        android:id="@+id/img2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_centerVertical="true" android:layout_alignParentRight="true"/>
    <ImageView
        android:id="@+id/img3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_alignParentBottom="true" android:layout_marginBottom="100dip"/>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" android:clipChildren="false" android:clipToPadding="false">

        <ImageView
            android:id="@+id/img4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_marginTop="150dip"/>
    </LinearLayout>

</RelativeLayout>

Your activity

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ((Button) findViewById( R.id.btn1 )).setOnClickListener( new OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            ImageView img = (ImageView) findViewById( R.id.img1 );              
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img2 );
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img3 );                
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img4 );
            moveViewToScreenCenter( img );
        }
    });
}

private void moveViewToScreenCenter( View view )
{
    RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
    DisplayMetrics dm = new DisplayMetrics();
    this.getWindowManager().getDefaultDisplay().getMetrics( dm );
    int statusBarOffset = dm.heightPixels - root.getMeasuredHeight();

    int originalPos[] = new int[2];
    view.getLocationOnScreen( originalPos );

    int xDest = dm.widthPixels/2;
    xDest -= (view.getMeasuredWidth()/2);
    int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;

    TranslateAnimation anim = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1] );
    anim.setDuration(1000);
    anim.setFillAfter( true );
    view.startAnimation(anim);
}

The method moveViewToScreenCenter gets the View's absolute coordinates and calculates how much distance has to move from its current position to reach the center of the screen. The statusBarOffset variable measures the status bar height.

I hope you can keep going with this example. Remember that after the animation your view's position is still the initial one. If you tap the MOVE button again and again the same movement will repeat. If you want to change your view's position do it after the animation is finished.