Question

检查附图以便于解释。

翻译动画作品，但它在同一视图中设置动画。我希望视图从一个布局飞到另一个布局。

我在这里尝试了另一个答案。（相同布局的动画）

public class Animations {
        public Animation fromAtoB(float fromX, float fromY, float toX, float toY, 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));

            return fromAtoB;
        }

Answer 1

我最近使用Animators做了类似的动画。一般来说，视图不会在父母的边界之外显示，视图将被其父母的边界所切割。这就是为什么，诀窍是在原始视图（来自View）的顶部放置一个新视图（shuttleView），你想要动画，对齐它们，并将shuttleView的缩放/转换设置为目标视图（toView）。

此解决方案支持缩放和翻译，例如：https://www.dropbox.com/s/iom95o93076h52f/device-2016-06-03-111557.mp4?dl=0

以下是代码：

activity_main.xml中

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="90dp"
    android:layout_alignParentTop="true"
    android:background="@android:color/holo_blue_dark">

    <TextView
        android:id="@+id/itemTo"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_margin="10dp"
        android:background="@android:color/holo_blue_bright"
        android:text="to"/>

</LinearLayout>


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="90dp"
    android:layout_alignParentBottom="true"
    android:background="@android:color/holo_blue_dark">

    <TextView
        android:layout_width="90dp"
        android:layout_height="match_parent"
        android:layout_margin="10dp"
        android:background="@android:color/holo_blue_bright" />

    <TextView
        android:id="@+id/itemFrom"
        android:layout_width="90dp"
        android:layout_height="match_parent"
        android:layout_margin="10dp"
        android:text="from"
        android:background="@android:color/holo_blue_bright" />

    <TextView
        android:layout_width="90dp"
        android:layout_height="match_parent"
        android:layout_margin="10dp"
        android:background="@android:color/holo_blue_bright" />
</LinearLayout>

<View
    android:id="@+id/shuttle"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:background="@android:color/holo_blue_bright"/>

活动类：

public class MainActivity extends AppCompatActivity {
    public static final int ANIMATION_SPEED = 3000;
    private RelativeLayout rootView;
    private View fromView, toView, shuttleView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        rootView = (RelativeLayout) findViewById(R.id.rootView);
        fromView = findViewById(R.id.itemFrom);
        toView = findViewById(R.id.itemTo);
        shuttleView = findViewById(R.id.shuttle);

        fromView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Rect fromRect = new Rect();
                Rect toRect = new Rect();
                fromView.getGlobalVisibleRect(fromRect);
                toView.getGlobalVisibleRect(toRect);

                AnimatorSet animatorSet = getViewToViewScalingAnimator(rootView, shuttleView, fromRect, toRect, ANIMATION_SPEED, 0);

                animatorSet.addListener(new Animator.AnimatorListener() {
                    @Override
                    public void onAnimationStart(Animator animation) {
                        shuttleView.setVisibility(View.VISIBLE);
                        fromView.setVisibility(View.INVISIBLE);
                    }

                    @Override
                    public void onAnimationEnd(Animator animation) {
                        shuttleView.setVisibility(View.GONE);
                        fromView.setVisibility(View.VISIBLE);
                    }

                    @Override
                    public void onAnimationCancel(Animator animation) {

                    }

                    @Override
                    public void onAnimationRepeat(Animator animation) {

                    }
                });
                animatorSet.start();
            }
        });
    }


    public static AnimatorSet getViewToViewScalingAnimator(final RelativeLayout parentView,
                                                           final View viewToAnimate,
                                                           final Rect fromViewRect,
                                                           final Rect toViewRect,
                                                           final long duration,
                                                           final long startDelay) {
        // get all coordinates at once
        final Rect parentViewRect = new Rect(), viewToAnimateRect = new Rect();
        parentView.getGlobalVisibleRect(parentViewRect);
        viewToAnimate.getGlobalVisibleRect(viewToAnimateRect);

        viewToAnimate.setScaleX(1f);
        viewToAnimate.setScaleY(1f);

        // rescaling of the object on X-axis
        final ValueAnimator valueAnimatorWidth = ValueAnimator.ofInt(fromViewRect.width(), toViewRect.width());
        valueAnimatorWidth.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                // Get animated width value update
                int newWidth = (int) valueAnimatorWidth.getAnimatedValue();

                // Get and update LayoutParams of the animated view
                RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) viewToAnimate.getLayoutParams();

                lp.width = newWidth;
                viewToAnimate.setLayoutParams(lp);
            }
        });

        // rescaling of the object on Y-axis
        final ValueAnimator valueAnimatorHeight = ValueAnimator.ofInt(fromViewRect.height(), toViewRect.height());
        valueAnimatorHeight.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                // Get animated width value update
                int newHeight = (int) valueAnimatorHeight.getAnimatedValue();

                // Get and update LayoutParams of the animated view
                RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) viewToAnimate.getLayoutParams();
                lp.height = newHeight;
                viewToAnimate.setLayoutParams(lp);
            }
        });

        // moving of the object on X-axis
        ObjectAnimator translateAnimatorX = ObjectAnimator.ofFloat(viewToAnimate, "X", fromViewRect.left - parentViewRect.left, toViewRect.left - parentViewRect.left);

        // moving of the object on Y-axis
        ObjectAnimator translateAnimatorY = ObjectAnimator.ofFloat(viewToAnimate, "Y", fromViewRect.top - parentViewRect.top, toViewRect.top - parentViewRect.top);

        AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.setInterpolator(new DecelerateInterpolator(1f));
        animatorSet.setDuration(duration); // can be decoupled for each animator separately
        animatorSet.setStartDelay(startDelay); // can be decoupled for each animator separately
        animatorSet.playTogether(valueAnimatorWidth, valueAnimatorHeight, translateAnimatorX, translateAnimatorY);

        return animatorSet;
    }
}

您可以根据animatorSet侦听器中动画的不同阶段出现和消失的内容进行一大堆自定义。希望它有用。

Answer 2

如果有人在寻找更简单的解决方案，您可以使用转换框架： https://developer.android.com/training/transitions/index.html

要从一个父视图转换到另一个父视图的动画，有一个特殊的转换ChangeTransform： https://developer.android.com/reference/android/transition/ChangeTransform.html

一个小例子：

animatedView = View.inflate(ActivityMain.this, R.layout.item, firstParent);
animatedView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
Transition move = new ChangeTransform()
                        .addTarget(animatedView)
                        .setDuration(2000));
TransitionManager.beginDelayedTransition(rootParent, move);
firstParent.removeView(animatedView);
animatedView.setPadding(2,2,2,2);
animatedView.setElevation(4);
secondParent.addView(animatedView, 0);

将视图从一个布局设置为其他布局

2 个答案: