Question

我正在制作动画fragment和activity之间的过渡动画。我遇到的问题是，当我执行从我的片段转换到新活动的调用时，SharedElement是ImageView，变得非常小，然后变大。当活动关闭并且元素返回其位置时，它会一直收缩到零，然后弹出到正常大小。

此视频中显示了非常类似的问题： https://www.dropbox.com/s/gzli11ae3ebz95f/2016_04_19_20_33_29.mp4?dl=0

以下是我的新活动的代码：

final ActivityOptionsCompat optionsCompat = ActivityOptionsCompat.makeSceneTransitionAnimation(mActivity,
                    Pair.create((View) holder.sharedElement, "transition_name1"),
                    Pair.create((View) holder.sharedElement2, "transition_name2"));


            final Intent intent = SecondActivity.startActivity(mActivity, mList.get(holder.getAdapterPosition()));
            mActivity.startActivityForResult(intent, SecondActivity.REQUEST_CODE, optionsCompat.toBundle());

在我开始新的活动之后，我正在进行这种转变：

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void setupTransitions() {
    TransitionSet sharedSetEnter = new TransitionSet();

    Transition bounds = new ChangeBounds();
    bounds.addTarget("transition_name2");
    bounds.excludeTarget(R.id.toolbar, true);
    bounds.setDuration(300);

    Transition arcShared = new ChangeBounds();
    arcShared.addTarget("transition_name1");
    arcShared.setPathMotion(new ArcMotion());
    arcShared.setDuration(200);

    sharedSetEnter.addTransition(arcShared);
    sharedSetEnter.addTransition(bounds);

    TransitionSet sharedSetExit = new TransitionSet();
    sharedSetExit.addTransition(arcShared);
    sharedSetExit.addTransition(bounds);

    Transition fade = new Fade();
    fade.setDuration(100);
    fade.excludeTarget(android.R.id.statusBarBackground, true);
    fade.excludeTarget(android.R.id.navigationBarBackground, true);

    sharedSetEnter.addListener(new Transition.TransitionListener() {
        @Override
        public void onTransitionStart(Transition transition) {
            initLayouts();
        }
        @Override
        public void onTransitionEnd(Transition transition) {}
        @Override
        public void onTransitionCancel(Transition transition) {}
        @Override
        public void onTransitionPause(Transition transition) {}
        @Override
        public void onTransitionResume(Transition transition) {}
    });

    sharedSetExit.addListener(new Transition.TransitionListener() {
        @Override
        public void onTransitionStart(Transition transition) {
            setUnnecessaryLayoutsInvisible();
        }
        @Override
        public void onTransitionEnd(Transition transition) {

        }
        @Override
        public void onTransitionCancel(Transition transition) {}
        @Override
        public void onTransitionPause(Transition transition) {}
        @Override
        public void onTransitionResume(Transition transition) {}
    });

    getWindow().setSharedElementEnterTransition(sharedSetEnter);
    getWindow().setSharedElementReturnTransition(sharedSetExit);
    getWindow().setEnterTransition(fade);
    getWindow().setReturnTransition(fade);

}

因此动画被称为ok，但ImageView除外，它不能按比例缩放。大小从0-1到1-0而不是像0.4-1和1-0.4

非常感谢任何帮助。

共享元素片段和活动之间的转换

0 个答案: