Android View動畫

0. 目錄

目錄 一種View背景顏色變換動畫 一種位移變化動畫 一種位移變化動畫 一種縮放和位移動畫 一種縮放和位移動畫 一種縮放位移和透明度動畫

1. 一種View背景顏色變換動畫

    private void startBackgroundTranslateAnim(int curColor, int transColor, final View view){
        ValueAnimator backgroundColor = ValueAnimator.ofObject(new ArgbEvaluator(),
                curColor, transColor);
        backgroundColor.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationStart(Animator animation) {

            }
            @Override
            public void onAnimationEnd(Animator animation) {

            }
        });
        backgroundColor.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                int color = (int) animation.getAnimatedValue();
                view.setBackgroundColor(color);
            }
        });
        backgroundColor.setInterpolator(new LinearInterpolator());
        backgroundColor.setDuration(500);
        backgroundColor.start();
    }

2. 一種位移變化動畫

        view.animate().translationX(animTranslationXPx)
                //.alpha(0f)
                .setStartDelay(0)
                .setUpdateListener(null)
                .setInterpolator(new AccelerateDecelerateInterpolator())
                .setDuration(1000)
                .withEndAction(new Runnable() {
                    @Override
                    public void run() {

                    }
                })
                .start();

3. 一種位移變化動畫

        ObjectAnimator anim = ObjectAnimator.ofFloat(v,View.TRANSLATION_X, newPos);
        anim.setInterpolator(new LinearInterpolator());
        anim.setDuration(500);
        anim.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {

            }
        });
        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {

            }
        });
        anim.start();

4. 一種縮放和位移動畫

        final Rect fromRect = ......
        final Rect toRect = ......

        final float originScaleX = 1.0f;//(float)fromRect.width() / toRect.width();
        final float originScaleY = 1.0f;//(float)fromRect.height() / toRect.height();

        ValueAnimator trans = ValueAnimator.ofFloat(0, 1);
        trans.setInterpolator(new LinearInterpolator());
        trans.setDuration(600);
        trans.addListener(new AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) { }
            @Override
            public void onAnimationRepeat(Animator animation) { }
            @Override
            public void onAnimationEnd(Animator animation) {

            }
            @Override
            public void onAnimationCancel(Animator animation) {

            }
        });
        trans.addUpdateListener(new AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                float percent = (Float)animation.getAnimatedValue();

                float toX = (fromRect.left + percent * (toRect.left - fromRect.left));
                float toY = (fromRect.top + percent * (toRect.top - fromRect.top));
                float toR = (fromRect.right + percent * (toRect.right - fromRect.right));
                float toB = (fromRect.bottom + percent * (toRect.bottom - fromRect.bottom));
                float scaleX = (float)(toR - toX) / fromRect.width();
                float scaleY = (float)(toB - toY) / fromRect.height();
                view.setTranslationX(toX-view.getLeft());
                view.setTranslationY(toY-view.getTop());
                view.setScaleX(scaleX*originScaleX);
                view.setScaleY(scaleY*originScaleY);
                float alpha = 0 + percent * 1 / (0.8f - 0);
        ......
            }
        });
        trans.start();

5. 一種縮放和位移動畫

        ObjectAnimator trans = ObjectAnimator.ofFloat(view,View.TRANSLATION_X, newPos);
        ObjectAnimator scalex = ObjectAnimator.ofFloat(view, View.SCALE_X, 1.0f, 0.8f);
        ObjectAnimator scaley = ObjectAnimator.ofFloat(view, View.SCALE_Y, 1.0f, 0.8f);
        AnimatorSet animSet = new AnimatorSet();
        animSet.playTogether(scalex, scaley, trans);
        animSet.setDuration(duration);
        animSet.setInterpolator(new LinearInterpolator());
        animSet.addListener(new AnimatorListener() {

            @Override
            public void onAnimationCancel(Animator animation) {
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                // do end;
            }

            @Override
            public void onAnimationRepeat(Animator animation) {
            }

            @Override
            public void onAnimationStart(Animator animation) {
            }

        });
        animSet.start();

6. 一種縮放、位移和透明度動畫

        view.animate().translationX(animTranslationXPx)
                .alpha(0.5f)
                .setStartDelay(0)
                .scaleX(0.8f)
                .scaleY(0.8f)
                .setUpdateListener(null)
                .setInterpolator(new AccelerateDecelerateInterpolator())
                .setDuration(1000)
                .withEndAction(new Runnable() {
                    @Override
                    public void run() {

                    }
                })
                .start();