how to move view to the center of screen using animations in android

Question

i'd like to move a view (in my case - a button, but it doesn't really matter) to the center of the screen. when i'm running the move without animations, it works. however, i'm having a hard time deciding which animations i should use to do so, since TranslateAnimation only lets me do so but specify the exact x,y coordinates, which i don't have (tried it with metrics, but the calculation didn't work, and i don't want to use this method). So, this code works without animations : ``` RelativeLayout.LayoutParams parms2 = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); parms2.addRule(RelativeLayout.CENTER_VERTICAL); parms2.addRule(RelativeLayout.CENTER_HORIZONTAL); _buttonC.setLayoutParams(parms2); ``` and when i try to add animations, it doesn't. ``` ObjectAnimator ani = ObjectAnimator.ofFloat(_buttonC, "Y", 2000); ani.setDuration(4000); ani.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationSta…

Accepted Answer

Have you tried:

```
_buttonC.animate().translationX(parentCenterX - _buttonC.getWidth()/2).translationY(parentCenterY - _buttonC.getHeight()/2);
```

Of course you will have to calculate the parent centerX and centerY:

```
float parentCenterX = parent.getX() + parent.getWidth()/2;
float parentCenterY = parent.getY() + parent.getHeight()/2;
```

Hope this will help.

how to move view to the center of screen using animations in android

Solution

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