我正在尝试通过点击通知在导航图中打开特定目的地。我创建了待定意图如下 -
//this code in service to create notification
OccasionViewerArgs.Builder builderArg = new OccasionViewerArgs.Builder();
builderArg.setPrimaryKey(2);
builderArg.setOccasionClickType("Birthday");
PendingIntent pendingIntent = new NavDeepLinkBuilder(this)
.setGraph(R.navigation.dashboard_navigation)
.setDestination(R.id.occasionViewer)
.setArguments(builderArg.build().toBundle())
.createPendingIntent();
问题：
当我点击通知时，我希望导航到我的“occasionViewer”片段，这是相同的片段，设置为destination R.id.occasionViewer，但我正在导航到导航图的开始目标片段，即“dashboardFragment”。
我尝试将目的地更改为同一图中的其他目的地之一R.id.addBirthdayFragment，如下所示 -
PendingIntent pendingIntent = new NavDeepLinkBuilder(this)
.setGraph(R.navigation.dashboard_navigation)
.setDestination(R.id.addBirthdayFragment)
//.setArguments(builderArg.build().toBundle())
.createPendingIntent();
然后它按预期工作，这意味着在通知点击时我正在导航到 addBirthdayFragment。
你能否调查一下，让我知道我在这里做错了什么，任何建议或帮助都会让我开心。
这是 nav_graph (R.navigation.dashboard_navigation)
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@id/dashboard_navigation"
app:startDestination="@id/dashboardFragment">
<fragment
android:id="@+id/dashboardFragment"
android:name="buzz.anusmarak.ui.dashboard.DashboardFragment"
android:label=""
tools:layout="@layout/fragment_dashboard" >
<action
android:id="@+id/action_dashboardFragment_to_addBirthdayFragment"
app:destination="@id/addBirthdayFragment" />
<action
android:id="@+id/action_dashboardFragment_to_occasionViewer"
app:destination="@id/occasionViewer"/>
</fragment>
<fragment
android:id="@+id/addBirthdayFragment"
android:name="buzz.anusmarak.ui.birthday.AddBirthdayFragment"
android:label="Add Birthday"
tools:layout="@layout/fragment_add_birthday" >
<action
android:id="@+id/action_addBirthdayFragment_to_dashboardFragment"
app:destination="@id/dashboardFragment"
app:popUpTo="@+id/dashboardFragment"
app:popUpToInclusive="true" />
<action
android:id="@+id/action_addBirthdayFragment_to_occasionViewer"
app:destination="@id/occasionViewer"
app:popUpTo="@+id/dashboardFragment"
app:popUpToInclusive="true" />
</fragment>
<fragment
android:id="@+id/occasionViewer"
android:name="buzz.anusmarak.ui.dashboard.occasion_viewer.OccasionViewer"
android:label=""
tools:layout="@layout/fragment_occasion_viewer" >
<argument
android:name="primaryKey"
app:argType="integer"
android:defaultValue="-1" />
<argument
android:name="occasionClickType"
app:argType="string"
android:defaultValue="default" />
<action
android:id="@+id/action_occasionViewer_to_dashboardFragment"
app:destination="@id/dashboardFragment" />
</fragment>
</navigation>
感谢您提前付出的努力和时间。
编辑 1
观察者如下
private LiveData<Occasion> occasionLiveData;
occasionLiveData = AppRoomDatabase.getDatabase(requireContext().getApplicationContext())
.occasionDao().findOccasionByKey(primaryKey);
occasionLiveData.observe(getViewLifecycleOwner(), new Observer<Occasion>() {
@Override
public void onChanged(Occasion occasion) {
if (occasion != null) {
setupValues(occasion);
}
}
});
Method setupValues(occasion)，我使用 Occasion 更新不同的值。
我在 onActivityCreated() 中使用观察者。
编辑 2
场合查看器
public class OccasionViewer extends Fragment implements DatePickerFragment.DatePickerDialogListener
, MenuItem.OnMenuItemClickListener {
private static final String TAG = "OccasionViewer";
private int primaryKey;
private String occasionClickType;
private ImageView isImportantImg, makeCall;
private CircularImageView personImg;
private LiveData<Occasion> occasionLiveData;
.....
public OccasionViewer() {
// Required empty public constructor
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
primaryKey = OccasionViewerArgs.fromBundle(getArguments()).getPrimaryKey();
occasionClickType = OccasionViewerArgs.fromBundle(getArguments()).getOccasionClickType();
Transition sharedElementEnterTransition = TransitionInflater.from(getContext()).inflateTransition(android.R.transition.move);
setSharedElementEnterTransition(sharedElementEnterTransition);
postponeEnterTransition();
}
}
@Override
public void onDestroy() {
occasionLiveData.removeObservers(this);
super.onDestroy();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_occasion_viewer, container, false);
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
occasionLiveData = AppRoomDatabase.getDatabase(requireContext().getApplicationContext())
.occasionDao().findOccasionByKey(primaryKey);
occasionLiveData.observe(getViewLifecycleOwner(), new Observer<Occasion>() {
@Override
public void onChanged(Occasion occasion) {
if (occasion != null) {
setupValues(occasion);
}
}
});
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
CollapsingToolbarLayout collapsingToolbarLayout = view.findViewById(R.id.collapsing_toolbar);
NavController navController = Navigation.findNavController(view);
Toolbar toolbar = view.findViewById(R.id.toolbar);
personImg = view.findViewById(R.id.person_img);
isImportantImg = view.findViewById(R.id.is_important_img);
toolbar.setTransitionName(occasionClickType+primaryKey+"cardView");
personImg.setTransitionName(occasionClickType+primaryKey+"imageView");
isImportantImg.setTransitionName(occasionClickType+primaryKey+"importantView");
AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(navController.getGraph()).build();
NavigationUI.setupWithNavController(collapsingToolbarLayout, toolbar, navController, appBarConfiguration);
.................
}
private void setupValues(Occasion occasion) {
//using occasion to setup values
}
// further method for setup different fields
}
编辑 3（一些观察）
我的 DashboardFragment 有一个回收视图，在项目单击时导航到 OccasionViewer，但是当点击通知时，它确实将我带到 DashboardFragment，然后我单击回收视图项目，它会出现此错误：
--------- beginning of crash
07-30 10:56:57.695 16143-16143/buzz.anusmarak E/AndroidRuntime: FATAL EXCEPTION: main
Process: buzz.anusmarak, PID: 16143
java.lang.IllegalArgumentException: Navigation action/destination buzz.anusmarak:id/action_dashboardFragment_to_occasionViewer cannot be found from the current destination Destination(buzz.anusmarak:id/occasionViewer) label= class=buzz.anusmarak.ui.dashboard.occasion_viewer.OccasionViewer
at androidx.navigation.NavController.navigate(NavController.java:931)
at androidx.navigation.NavController.navigate(NavController.java:1128)
at buzz.anusmarak.ui.dashboard.DashboardFragment.onUpcomingOccasionClick(DashboardFragment.java:387)
添加 PSR
在这里找到问题的 PSR ..
https://drive.google.com/file/d/1-3yuQU-4YPprZHk5cUGoq20Ck82y3omT/view?usp=sharing
编辑 4（由 AdrianK 解决）
我打电话startPostponedEnterTransition();如下
private void setupValues(Occasion occasion) {
matchingOccasion = occasion;
collapsingToolbarLayout.setTitle(matchingOccasion.getPersonName());
String personImageID = matchingOccasion.getPersonImage();
if (!personImageID.isEmpty()) {
File filepath = requireContext().getExternalFilesDir(null);
File file = new File(filepath + "/" + personImageID + ".jpeg");
Picasso.with(requireContext()).load(file)
.into(personImg, new Callback() {
@Override
public void onSuccess() {
// startPostponedEnterTransition();
}
.......
通过以下更改解决了问题 -
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
......
startPostponedEnterTransition();
......
再次感谢AdrianK花时间研究我的代码。干杯.. !!