Question

我有MainActivity，它显示了两个带有共享图像的片段。

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ActivityCompat.postponeEnterTransition(this);
    if (savedInstanceState == null) {
        Fragment firstFragment = new FirstFragment();
        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
        transaction.add(R.id.frame, firstFragment);
        transaction.commit();
    }
}

public void showPhoto(View sharedView, String sharedName) {
    Fragment listFragment = getSupportFragmentManager().findFragmentById(R.id.frame);
    Fragment detailFragment = new SecondFragment();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        listFragment.setSharedElementReturnTransition(new ChangeImageTransform());
        listFragment.setExitTransition(TransitionInflater.from(this)
                .inflateTransition(android.R.transition.explode));
        detailFragment.setSharedElementEnterTransition(new ChangeImageTransform());

        detailFragment.setEnterTransition(TransitionInflater.from(this)
                .inflateTransition(android.R.transition.explode));
    }
    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.addSharedElement(sharedView, sharedName);
    transaction.replace(R.id.frame, detailFragment);
    transaction.addToBackStack("viewer");
    transaction.commit();
}
}

第一个片段：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_first, container, false);
    final ImageView image = (ImageView) view.findViewById(R.id.image_small);
    image.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ((MainActivity) getActivity()).showPhoto(image, "name");
        }
    });
    ViewCompat.setTransitionName(image, "name");
    return view;
}

拳头片段布局：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:tools="http://schemas.android.com/tools"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

<ImageView
    android:transitionName="name"
    android:id="@+id/image_small"
    android:layout_width="200dp"
    android:scaleType="centerCrop"
    android:layout_height="200dp"
    android:layout_centerInParent="true"
    android:src="@drawable/image"/>

</RelativeLayout>

第二片段：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_second, container, false);
    ImageView image = (ImageView) view.findViewById(R.id.image_big);
    ViewCompat.setTransitionName(image, "name");
    return view;
}

第二个片段布局：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent">

<ImageView
    android:id="@+id/image_big"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:src="@drawable/image"
    android:transitionName="name"/>

 </FrameLayout>

我有下一个动画： https://youtu.be/pRYHC59sSL8

但我想制作这样的动画： https://developer.android.com/design/material/videos/ContactsAnim.webm

我做错了什么？

使用Android 5.0手机。

Answer 1

public void showPhoto(View sharedView, String sharedName) {
   Fragment listFragment = getSupportFragmentManager().findFragmentById(R.id.frame);
   Fragment detailFragment = new SecondFragment();
      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
         listFragment.setSharedElementReturnTransition(TransitionInflater.from(getActivity()).inflateTransition(R.transition.change_image_transform));
         listFragment.setExitTransition(TransitionInflater.from(this)
            .inflateTransition(android.R.transition.explode));
         detailFragment.setSharedElementEnterTransition(TransitionInflater.from(getActivity()).inflateTransition(R.transition.change_image_transform));

         detailFragment.setEnterTransition(TransitionInflater.from(this)
            .inflateTransition(android.R.transition.explode));
}

   FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
   transaction.addSharedElement(sharedView, sharedName);
   transaction.replace(R.id.frame, detailFragment);
   transaction.addToBackStack("viewer");
   transaction.commit();

}

使用共享imageview进行片段转换。错误的动画

1 个答案: