CODEWITHSUNDEEP
androidandroid-animation
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Reputation: 490

Android - Rotate Object along Y-Axis

I've a TextView in my app and I want it to rotate from left edge along Y-Axis.

Using this code, 

<rotate 
    android:fromDegrees="90"
    android:toDegrees="0"
    android:pivotX="0%"
    android:pivotY="0%"
    android:duration="2000" />

I'm able to make it rotate along the left edge, but it does not move along Y-Axis.

However, when I use objectAnimator, it does move along Y-Axis using its rotationY property, but then, I cannot set the values pivotX and pivotY which makes it to rotate along the centre rather than from the left edge.

How do I achieve both the things at the same time?

Please help me!!

Thanks in advance.

Upvotes: 1

Views: 6329

Answers (3)

codezjx
codezjx

Reputation: 9142

You can use setRotationY() method to ratate around the y axis.

ValueAnimator lockAnimator = ValueAnimator.ofFloat(0, 1);     // value from 0 to 1
lockAnimator.setDuration(ANIMATION_DURATION);
lockAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator pAnimation) {
        float value = (Float) (pAnimation.getAnimatedValue());
        textView.setRotationY(180 * value);
    }
});

Upvotes: 0

dmv
dmv

Reputation: 175

To rotate view from left edge, try using the following property of view.

android:transformPivotX = "0dp"

This will rorate your view from left edge.

Upvotes: 0

grytrn
grytrn

Reputation: 423

check this card flip animation from android. basicly you define 4 animations and set the animation order with

    getFragmentManager()
        .beginTransaction()
        .setCustomAnimations(
                R.animator.card_flip_right_in, R.animator.card_flip_right_out,
                R.animator.card_flip_left_in, R.animator.card_flip_left_out)
        .replace(R.id.container, new CardBackFragment())
        .addToBackStack(null)
        .commit();

you might want to change the angles and "valueFrom", "valueTo" properties to fit your needs.

Upvotes: 2

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