What's the correct way to animate a View from one coordinate to another?

Question

I would like to do the following. I have a set of buttons that have some icons on them. When the user taps one, I would like to introduce a new View that starts in the same coo

Answer 1

You can use Android transition animation to move a view over the layout. Have a look at the below mentioned link to get some ideas on animating views inside the layout.

https://github.com/lgvalle/Material-Animations

Answer 2

So, it turns out that this is much more straight forward than I imagined.

I created a full screen RelativeLayout that I only show while the animation is happening.

I get the starting position of my burried button like this (it's funny to see these C style coding mechanisms in Java, they're pretty rare these days:

int fromLoc[] = new int[2];
v.getLocationOnScreen(fromLoc);     
float startX = fromLoc[0];
float startY = fromLoc[1];

So, now I have my starting point.

My end point is an absolute coordinate on the screen, you can assign that however you wish

Then I make a little Animations helper class that lets me pass in all the coordinates, the callback, and the duration of the animation

    public class Animations {
public Animation fromAtoB(float fromX, float fromY, float toX, float toY, AnimationListener l, int speed){


        Animation fromAtoB = new TranslateAnimation(
                Animation.ABSOLUTE, //from xType
                fromX, 
                Animation.ABSOLUTE, //to xType
                toX, 
                Animation.ABSOLUTE, //from yType 
                fromY, 
                Animation.ABSOLUTE, //to yType 
                toY
                 );

        fromAtoB.setDuration(speed);
        fromAtoB.setInterpolator(new AnticipateOvershootInterpolator(1.0f));


        if(l != null)
            fromAtoB.setAnimationListener(l);               
                return fromAtoB;
    }
}

and we need a listener to let us know when the animation is done to clear it

 AnimationListener animL = new AnimationListener() {

        @Override
        public void onAnimationStart(Animation animation) {     
        }

        @Override
        public void onAnimationRepeat(Animation animation) {        
        }

        @Override
        public void onAnimationEnd(Animation animation) {
            //this is just a method to delete the ImageView and hide the animation Layout until we need it again.
            clearAnimation();       
        }
    };

And lastly we throw it all together and press GO

int fromLoc[] = new int[2];
    v.getLocationOnScreen(fromLoc);     
    float startX = fromLoc[0];
    float startY = fromLoc[1];      
    RelativeLayout rl = ((RelativeLayout)findViewById(R.id.sticker_animation_layout));
    ImageView sticker = new ImageView(this);

    int stickerId = getStickerIdFromButton(v);
    if(stickerId == 0){
        stickerAnimationPlaying = false;
        return;         
    }

    float destX = 200.0f;//arbitrary place on screen
    float destY = 200.0f;//arbitrary place on screen

    sticker.setBackgroundResource(stickerId);
    sticker.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

    rl.addView(sticker);
    Animations anim = new Animations();
    Animation a = anim.fromAtoB(startX, startY, destX, destY, animL,750);
    sticker.setAnimation(a);
    a.startNow();

Answer 3

I am just add my view on center position on frame layout and translation my view to x-axis and y-axis. Try below code:-

Add image view on framelayout

    imgHeart = new ImageView(getBaseContext());
    imgHeart.setId(R.id.heartImage);
    imgHeart.setImageResource(R.drawable.material_heart_fill_icon);
    imgHeart.setLayoutParams(new FrameLayout.LayoutParams(50, 50, Gravity.CENTER));
    mainFrameLaout.addView(imgHeart);

Add animation on image view

       imgHeart.animate()
            .scaleXBy(6)
            .scaleYBy(6)
            .setDuration(700)
            .alpha(2)
            .setListener(new Animator.AnimatorListener() {
                @Override
                public void onAnimationStart(Animator animation) {

                }

                @Override
                public void onAnimationEnd(Animator animation) {
                    imgHeart.animate()
                            .scaleXBy(-6f).scaleYBy(-6f)
                            .alpha(.1f)
                            .translationX((heigthAndWidth[0] / 2) - minusWidth)
                            .translationY(-((heigthAndWidth[1] / 2) - minusHeight))
                            .setDuration(1000)
                            .setListener(new Animator.AnimatorListener() {
                                @Override
                                public void onAnimationStart(Animator animation) {
                                }

                                @Override
                                public void onAnimationEnd(Animator animation) {
                                // remove image view from framlayout
                                }
                                @Override
                                public void onAnimationCancel(Animator animation) {
                                }

                                @Override
                                public void onAnimationRepeat(Animator animation) {
                                }
                            }).start();
                }

                @Override
                public void onAnimationCancel(Animator animation) {

                }

                @Override
                public void onAnimationRepeat(Animator animation) {

                }
            }).start();