这里是我的代码：
DetailsFragment fragment = new DetailsFragment();
Transition changeTransform = TransitionInflater.from(getActivity()).inflateTransition(R.transition.change_image_transform);
Transition explodeTransform = TransitionInflater.from(getActivity()).
inflateTransition(android.R.transition.explode);
setSharedElementReturnTransition(changeTransform);
setExitTransition(explodeTransform);
// Setup enter transition on second fragment
fragment.setSharedElementEnterTransition(changeTransform);
fragment.setEnterTransition(explodeTransform);
FragmentManager manager = ((Activity)mContext).getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.layoutView, fragment).addToBackStack(fragment.getClass().getSimpleName())
.addSharedElement(view.findViewById(R.id.itemView), "view");
fragment.commit();
在DetailsFragment给予相同的过渡名称（“意见”作为指定一个共同的转移名称）在布局ImageView ，但我没能看到在Android棒棒糖任何过渡。
我已经申报（启用窗口内容转换）的清单文件风格 -
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:windowContentTransitions">true</item>
</style>
我已经搜索了很多，但没有得到答复。
首先需要创建
活动这样的 -
public class DemoActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fragment);
ListFragment listFragment = new ListFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, listFragment)
.commit();
}
}
我的活动片段这样的 -
activity_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
这里是我的片段打开 -
ListFragment.java
public class ListFragment extends Fragment implements AbsListView.OnItemClickListener {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_list, container, false);
ListView listView = (ListView) view.findViewById(R.id.listView);
String [] strings = {"First Element", "Second Element", "Third Element"};
MyListAdapter myListAdapter = new MyListAdapter(getActivity(), R.layout.list_item, strings);
listView.setAdapter(myListAdapter);
listView.setOnItemClickListener(this);
return view;
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String imageTransitionName = "";
String textTransitionName = "";
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
TextView textView = (TextView) view.findViewById(R.id.textView);
ImageView staticImage = (ImageView) getView().findViewById(R.id.imageView);
LastFragment lastFragment = new LastFragment();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
setSharedElementReturnTransition(TransitionInflater.from(
getActivity()).inflateTransition(R.transition.change_image_trans));
setExitTransition(TransitionInflater.from(
getActivity()).inflateTransition(android.R.transition.fade));
lastFragment.setSharedElementEnterTransition(TransitionInflater.from(
getActivity()).inflateTransition(R.transition.change_image_trans));
lastFragment.setEnterTransition(TransitionInflater.from(
getActivity()).inflateTransition(android.R.transition.fade));
imageTransitionName = imageView.getTransitionName();
textTransitionName = textView.getTransitionName();
}
Bundle bundle = new Bundle();
bundle.putString("TRANS_NAME", imageTransitionName);
bundle.putString("ACTION", textView.getText().toString());
bundle.putString("TRANS_TEXT", textTransitionName);
bundle.putParcelable("IMAGE", ((BitmapDrawable) imageView.getDrawable()).getBitmap());
lastFragment.setArguments(bundle);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, lastFragment)
.addToBackStack("Payment")
.addSharedElement(imageView, imageTransitionName)
.addSharedElement(textView, textTransitionName)
.addSharedElement(staticImage, getString(R.string.fragment_image_trans))
.commit();
}
}
//MyListAdapter for creating list item
class MyListAdapter extends ArrayAdapter<String> {
public MyListAdapter(Context context, int resource, String[] objects) {
super(context, resource, objects);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
view = LayoutInflater.from(getContext()).inflate(R.layout.list_item, null);
}
String listItem = getItem(position);
TextView textView = (TextView) view.findViewById(R.id.textView);
textView.setText(listItem);
ImageView imageView = (ImageView) view.findViewById(R.id.imageView);
imageView.setImageResource(R.drawable.logo);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
textView.setTransitionName("trans_text" + position);
imageView.setTransitionName("trans_image" + position);
}
return view;
}
}
fragment_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="80dp"
android:src="@drawable/logo"
android:transitionName="@string/fragment_image_trans"/>
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/imageView">
</ListView>
</RelativeLayout>
LastFragment.java
public class LastFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle bundle = getArguments();
String actionTitle = "DUMMY ACTION";
Bitmap imageBitmap = null;
String transText = "";
String transitionName = "";
if (bundle != null) {
transitionName = bundle.getString("TRANS_NAME");
actionTitle = bundle.getString("ACTION");
imageBitmap = bundle.getParcelable("IMAGE");
transText = bundle.getString("TRANS_TEXT");
}
getActivity().setTitle(actionTitle);
View view = inflater.inflate(R.layout.fragment_last, container, false);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
view.findViewById(R.id.listImage).setTransitionName(transitionName);
view.findViewById(R.id.textView).setTransitionName(transText);
}
((ImageView) view.findViewById(R.id.listImage)).setImageBitmap(imageBitmap);
((TextView) view.findViewById(R.id.textView)).setText(actionTitle);
return view;
}
}
R.layout.fragment_last
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="24dp"
android:orientation="vertical">
<ImageView
android:id="@+id/listImage"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:src="@drawable/logo"/>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:text="Sample"
android:textSize="24sp"/>
<ImageView
android:id="@+id/otherImage"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginTop="24dp"
android:src="@drawable/logo"
android:transitionName="@string/fragment_image_trans"/>
</RelativeLayout>
