以下是我的情景。
我有一个Activity
MainActivity
,其中有一个FAB
。当用户点击FAB
时,我会打开一个全屏DialogFragment
。我想用一些过渡打开DialogFragment
。
这是我到目前为止尝试过的代码。
//MainActivity.java
final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ReviewDialog reviewDialog = ReviewDialog.newInstance();
Slide slide = new Slide();
slide.setSlideEdge(Gravity.LEFT);
slide.setDuration(1000);
reviewDialog.setEnterTransition(slide);
Bundle bundle =ActivityOptions.makeSceneTransitionAnimation(ScrollingActivity.this)
.toBundle();
reviewDialog.setArguments(bundle);
reviewDialog.show(getSupportFragmentManager(),"review");
}
});
这是DialogFragment ReviewDialog的代码。
//ReviewDialog.java
public class ReviewDialog extends DialogFragment {
static ReviewDialog newInstance() {
ReviewDialog f = new ReviewDialog();
// Supply num input as an argument.
Bundle args = new Bundle();
f.setArguments(args);
return f;
}
@Override
public void onActivityCreated(Bundle arg0) {
super.onActivityCreated(arg0);
Slide slide = new Slide();
slide.setSlideEdge(Gravity.LEFT);
slide.setDuration(1000);
getDialog().getWindow().setEnterTransition(slide);
getDialog().getWindow().setExitTransition(slide);
getDialog().getWindow().setReenterTransition(slide);}
@Override
public void onCreate(Bundle bundle){
super.onCreate(bundle);
setStyle(DialogFragment.STYLE_NORMAL,R.style.DialogTheme);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.dialog_review, container, false);
return v;
}
}
此外,我在AndroidManifest.xml
<item name="android:windowContentTransitions">true</item>
问题是当ReviewDialog启动时,它不会显示任何转换。 我能够显示不同活动之间的转换,但很难显示活动和片段之间的转换。 如何在启动DialogFragment时显示转换?
答案 0 :(得分:-1)
共享元素转换与Fragments的工作方式非常类似于活动。
<强>值/ styles.xml 强>
<style name="MaterialAnimations" parent="@style/Theme.AppCompat.Light.NoActionBar">
...
<item name="android:windowContentTransitions">true</item>
...
</style>
<强>布局/ fragment_a.xml 强>
<ImageView
android:id="@+id/small_blue_icon"
style="@style/MaterialAnimations.Icon.Small"
android:src="@drawable/circle"
android:transitionName="@string/blue_name" />
<强>布局/ fragment_b.xml 强>
<ImageView
android:id="@+id/big_blue_icon"
style="@style/MaterialAnimations.Icon.Big"
android:src="@drawable/circle"
android:transitionName="@string/blue_name" />
FragmentB fragmentB = FragmentB.newInstance(sample);
// Defines enter transition for all fragment views
Slide slideTransition = new Slide(Gravity.RIGHT);
slideTransition.setDuration(1000);
sharedElementFragment2.setEnterTransition(slideTransition);
// Defines enter transition only for shared element
ChangeBounds changeBoundsTransition = TransitionInflater.from(this).inflateTransition(R.transition.change_bounds);
fragmentB.setSharedElementEnterTransition(changeBoundsTransition);
getFragmentManager().beginTransaction()
.replace(R.id.content, fragmentB)
.addSharedElement(blueView, getString(R.string.blue_name))
.commit();
这是最终结果: