Question

我想将一个对象从屏幕中心转换到屏幕的左上角。

我希望翻译动画在所有设备上都相同目前我给出的翻译值在不同的设备上是不同的[在对象的动画位置不同之后]。

有没有办法翻译和传递值，这会导致动画在各个设备上相同？

我的代码

ObjectAnimator scaleDownX = ObjectAnimator.ofFloat(progressWidget, "scaleX", 0.355f);
        ObjectAnimator scaleDownY = ObjectAnimator.ofFloat(progressWidget, "scaleY", 0.355f);
        scaleDownX.setDuration(3000);
        scaleDownY.setDuration(3000);

        ObjectAnimator translateX = ObjectAnimator.ofFloat(progressWidget, "translationX", -435f);
        translateX.setRepeatCount(0);
        translateX.setDuration(3000);

        ObjectAnimator translateY = ObjectAnimator.ofFloat(progressWidget, "translationY", -295f);
        translateY.setRepeatCount(0);
        translateY.setDuration(3000);


        //sequential animation
        AnimatorSet set = new AnimatorSet();
        set.play(scaleDownX).with(scaleDownY).with(translateX).with(translateY);
        //set.start();

Answer 1

    View progressWidget=null;

    progressWidget.setPivotX(0);
    progressWidget.setPivotY(0);

    ObjectAnimator scaleDownX = ObjectAnimator.ofFloat(progressWidget, "scaleX", 0.355f);
    ObjectAnimator scaleDownY = ObjectAnimator.ofFloat(progressWidget, "scaleY", 0.355f);
    scaleDownX.setDuration(3000);
    scaleDownY.setDuration(3000);


    //the top left corner of screen location is [0,0], get ProgressBar left top location in screen use getLocationInWindow
    int[] location = new int[2];
    progressWidget.getLocationInWindow(location);

    ObjectAnimator translateX = ObjectAnimator.ofFloat(progressWidget, "translationX", -location[0]);//location[0] is x location, so move -location[0]
    translateX.setRepeatCount(0);
    translateX.setDuration(3000);

    ObjectAnimator translateY = ObjectAnimator.ofFloat(progressWidget, "translationY", -location[1]);//location[1] is y location, so move -location[1]
    translateY.setRepeatCount(0);
    translateY.setDuration(3000);

Answer 2

第一：你必须创建xml有两个控件

控件1的名称 mControlStart 位于 中心布局

控件2的名称 mControlFinish 位于 左上角 并且具有属性

  android:visibility="invisible"

然后在OnClick

private void setUpAnimation() {
    int[] startPosition = new int[2];
    int[] endPosition = new int[2];
    mControlStart.getLocationInWindow(startPosition);
    mControlFinish.getLocationInWindow(endPosition);
    int offset = endPosition[1] - startPosition[1];
    TranslateAnimation animation = new TranslateAnimation(0, offset, 0, 0);
    animation.setDuration(1000);
    animation.setFillAfter(true);
    mControlStart.startAnimation(animation);
    animation.setAnimationListener(new Animation.AnimationListener() {
        @Override
        public void onAnimationStart(Animation animation) {

        }

        @Override
        public void onAnimationEnd(Animation animation) {
            mControlStart.setVisibility(View.GONE);
            mControlFinish.setVisibility(View.VISIBLE);
        }

        @Override
        public void onAnimationRepeat(Animation animation) {

        }
    });
}

Answer 3

你可以这样做：

XML：

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    >

    <ImageView
        android:id="@+id/fragment_imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/button_state_list_drawable"
        android:clickable="true"
        android:padding="20dp"
        android:src="@drawable/ic_launcher"/>

</LinearLayout>

Java代码：

@Override
public void onViewCreated(final View view, Bundle state) {
    super.onViewCreated(view, state);
    final View content = getView();
content.findViewById(R.id.fragment_imageView).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            translateWithScale(v);
        }
    });
}

private final void translateWithScale(View target) {
    if (target == null) {
        return;
    }
    // cancel animator
    if (target.getTag() instanceof Animator) {
        ((Animator) target.getTag()).cancel();
    }

    // params
    final int duration = 300;
    final float scale = 0.355f;

    // scale
    ObjectAnimator scaleDownX = ObjectAnimator.ofFloat(target, "scaleX", scale).setDuration(duration);
    ObjectAnimator scaleDownY = ObjectAnimator.ofFloat(target, "scaleY", scale).setDuration(duration);

    //
    final float transY = target.getTop() + target.getHeight() / 2 - scale * target.getHeight() / 2;
    final float transX = target.getLeft() + target.getWidth() / 2 - scale * target.getWidth() / 2;
    ObjectAnimator translateX = ObjectAnimator.ofFloat(target, "translationX", -transX).setDuration(duration);
    ObjectAnimator translateY = ObjectAnimator.ofFloat(target, "translationY", -transY).setDuration(duration);

    // sequential animator
    AnimatorSet set = new AnimatorSet();
    set.setInterpolator(new AccelerateDecelerateInterpolator());
    set.playTogether(scaleDownX, scaleDownY, translateX, translateY);
    set.start();

    // set the AnimatorSet as a tag, to cancel for animate next time.
    target.setTag(set);
}

翻译动画坐标会发出多个设备

3 个答案: