Replace fragment by FragmentContainerView

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

build.gradle

@@ -295,6 +295,7 @@ dependencies {
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0"
     implementation "androidx.work:work-runtime:2.3.4"
     implementation "androidx.work:work-runtime-ktx:2.3.4"
+    implementation "androidx.fragment:fragment:1.2.5"
     implementation 'com.github.albfernandez:juniversalchardet:2.0.3' // need this version for Android <7
     compileOnly 'com.google.code.findbugs:annotations:2.0.1'
     implementation 'commons-io:commons-io:2.7'

scripts/analysis/lint-results.txt

@@ -1,2 +1,2 @@
 DO NOT TOUCH; GENERATED BY DRONE
-      <span class="mdl-layout-title">Lint Report: 85 warnings</span>
+      <span class="mdl-layout-title">Lint Report: 86 warnings</span>

src/main/java/com/nextcloud/client/etm/EtmMenuFragment.kt

@@ -33,11 +33,11 @@ class EtmMenuFragment : EtmBaseFragment() {
     private lateinit var list: RecyclerView
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        adapter = EtmMenuAdapter(context!!, this::onClickedItem)
+        adapter = EtmMenuAdapter(requireContext(), this::onClickedItem)
         adapter.pages = vm.pages
         val view = inflater.inflate(R.layout.fragment_etm_menu, container, false)
         list = view.findViewById(R.id.etm_menu_list)
-        list.layoutManager = LinearLayoutManager(context!!)
+        list.layoutManager = LinearLayoutManager(requireContext())
         list.adapter = adapter
         return view
     }

src/main/java/com/nextcloud/client/etm/pages/EtmBackgroundJobsFragment.kt

@@ -112,7 +112,7 @@ class EtmBackgroundJobsFragment : EtmBaseFragment() {
         list.layoutManager = LinearLayoutManager(context)
         list.addItemDecoration(DividerItemDecoration(context, DividerItemDecoration.VERTICAL))
         list.adapter = adapter
-        vm.backgroundJobs.observe(this, Observer { onBackgroundJobsUpdated(it) })
+        vm.backgroundJobs.observe(viewLifecycleOwner, Observer { onBackgroundJobsUpdated(it) })
         return view
     }
 

src/main/java/com/owncloud/android/ui/activity/UploadFilesActivity.java

@@ -21,6 +21,7 @@
 package com.owncloud.android.ui.activity;
 
 import android.accounts.Account;
+import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.Intent;
 import android.content.res.ColorStateList;
@@ -51,7 +52,6 @@ import com.owncloud.android.ui.dialog.LocalStoragePathPickerDialogFragment;
 import com.owncloud.android.ui.dialog.SortingOrderDialogFragment;
 import com.owncloud.android.ui.fragment.ExtendedListFragment;
 import com.owncloud.android.ui.fragment.LocalFileListFragment;
-import com.owncloud.android.utils.DisplayUtils;
 import com.owncloud.android.utils.FileSortOrder;
 import com.owncloud.android.utils.ThemeUtils;
 
@@ -64,14 +64,11 @@ import javax.inject.Inject;
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.widget.SearchView;
-import androidx.core.content.res.ResourcesCompat;
 import androidx.core.view.MenuItemCompat;
 import androidx.fragment.app.DialogFragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
-import static com.owncloud.android.utils.DisplayUtils.openSortingOrderDialogFragment;
-
 /**
  * Displays local files and let the user choose what of them wants to upload to the current ownCloud account.
  */
@@ -107,7 +104,6 @@ public class UploadFilesActivity extends FileActivity implements LocalFileListFr
     private Menu mOptionsMenu;
     private SearchView mSearchView;
     private Spinner mBehaviourSpinner;
-    private MaterialButton sortButton;
 
     /**
      * Helper to launch the UploadFilesActivity for which you would like a result when it finished. Your
@@ -125,6 +121,7 @@ public class UploadFilesActivity extends FileActivity implements LocalFileListFr
     }
 
     @Override
+    @SuppressLint("WrongViewCast") // wrong error on finding local_files_list
     public void onCreate(Bundle savedInstanceState) {
         Log_OC.d(TAG, "onCreate() start");
         super.onCreate(savedInstanceState);
@@ -170,7 +167,7 @@ public class UploadFilesActivity extends FileActivity implements LocalFileListFr
             ((MaterialButton) findViewById(R.id.upload_files_btn_upload)).setText(R.string.uploader_btn_alternative_text);
         }
 
-        mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
+        mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentByTag("local_files_list");
 
         // Set input controllers
         MaterialButton cancelButton = findViewById(R.id.upload_files_btn_cancel);
@@ -181,27 +178,6 @@ public class UploadFilesActivity extends FileActivity implements LocalFileListFr
         ThemeUtils.colorPrimaryButton(uploadButton, this);
         uploadButton.setOnClickListener(this);
 
-        sortButton = findViewById(R.id.sort_button);
-        FileSortOrder fileSortOrder = preferences.getSortOrderByType(FileSortOrder.Type.uploadFilesView);
-        sortButton.setText(DisplayUtils.getSortOrderStringId(fileSortOrder));
-        sortButton.setOnClickListener(l -> openSortingOrderDialogFragment(getSupportFragmentManager(), fileSortOrder));
-
-        MaterialButton switchButton = findViewById(R.id.switch_grid_view_button);
-        switchButton.setOnClickListener(l -> {
-            if (isGridView()) {
-                switchButton.setIcon(ResourcesCompat.getDrawable(getResources(),
-                                                                 R.drawable.ic_view_module,
-                                                                 null));
-                mFileListFragment.switchToListView();
-            } else {
-                switchButton.setIcon(ResourcesCompat.getDrawable(getResources(),
-                                                                 R.drawable.ic_view_list,
-                                                                 null));
-                mFileListFragment.switchToGridView();
-
-            }
-        });
-
         int localBehaviour = preferences.getUploaderBehaviour();
 
         // file upload spinner
@@ -339,7 +315,6 @@ public class UploadFilesActivity extends FileActivity implements LocalFileListFr
     @Override
     public void onSortingOrderChosen(FileSortOrder selection) {
         preferences.setSortOrder(FileSortOrder.Type.uploadFilesView, selection);
-        sortButton.setText(DisplayUtils.getSortOrderStringId(selection));
         mFileListFragment.sortFiles(selection);
     }
 

src/main/java/com/owncloud/android/ui/fragment/ExtendedListFragment.java

@@ -82,6 +82,7 @@ import androidx.annotation.DrawableRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
 import androidx.appcompat.widget.SearchView;
+import androidx.core.content.ContextCompat;
 import androidx.core.view.MenuItemCompat;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.GridLayoutManager;
@@ -188,7 +189,7 @@ public class ExtendedListFragment extends Fragment implements
     }
 
     @Override
-    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+    public void onCreateOptionsMenu(Menu menu, @NonNull MenuInflater inflater) {
         final MenuItem item = menu.findItem(R.id.action_search);
         searchView = (SearchView) MenuItemCompat.getActionView(item);
         closeButton = searchView.findViewById(androidx.appcompat.R.id.search_close_btn);
@@ -748,4 +749,14 @@ public class ExtendedListFragment extends Fragment implements
             ((GridLayoutManager) getRecyclerView().getLayoutManager()).setSpanCount(maxColumnSize);
         }
     }
+
+    protected void setGridSwitchButton() {
+        if (isGridEnabled()) {
+            mSwitchGridViewButton.setContentDescription(getString(R.string.action_switch_list_view));
+            mSwitchGridViewButton.setIcon(ContextCompat.getDrawable(requireContext(), R.drawable.ic_view_list));
+        } else {
+            mSwitchGridViewButton.setContentDescription(getString(R.string.action_switch_grid_view));
+            mSwitchGridViewButton.setIcon(ContextCompat.getDrawable(requireContext(), R.drawable.ic_view_module));
+        }
+    }
 }

src/main/java/com/owncloud/android/ui/fragment/LocalFileListFragment.java

@@ -36,6 +36,7 @@ import com.owncloud.android.R;
 import com.owncloud.android.lib.common.utils.Log_OC;
 import com.owncloud.android.ui.adapter.LocalFileListAdapter;
 import com.owncloud.android.ui.interfaces.LocalFileListFragmentInterface;
+import com.owncloud.android.utils.DisplayUtils;
 import com.owncloud.android.utils.FileSortOrder;
 
 import java.io.File;
@@ -46,6 +47,8 @@ import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import static com.owncloud.android.utils.DisplayUtils.openSortingOrderDialogFragment;
+
 
 /**
  * A Fragment that lists all files and folders in a given LOCAL path.
@@ -82,7 +85,7 @@ public class LocalFileListFragment extends ExtendedListFragment implements
      * {@inheritDoc}
      */
     @Override
-    public void onAttach(Activity activity) {
+    public void onAttach(@NonNull Activity activity) {
         super.onAttach(activity);
         try {
             mContainerActivity = (ContainerActivity) activity;
@@ -130,6 +133,20 @@ public class LocalFileListFragment extends ExtendedListFragment implements
 
         listDirectory(mContainerActivity.getInitialDirectory());
 
+        FileSortOrder sortOrder = preferences.getSortOrderByType(FileSortOrder.Type.uploadFilesView);
+        mSortButton.setOnClickListener(v -> openSortingOrderDialogFragment(requireFragmentManager(), sortOrder));
+        mSortButton.setText(DisplayUtils.getSortOrderStringId(sortOrder));
+
+        setGridSwitchButton();
+        mSwitchGridViewButton.setOnClickListener(v -> {
+            if (isGridEnabled()) {
+                switchToListView();
+            } else {
+                switchToGridView();
+            }
+            setGridSwitchButton();
+        });
+
         Log_OC.i(TAG, "onActivityCreated() stop");
     }
 
@@ -137,7 +154,7 @@ public class LocalFileListFragment extends ExtendedListFragment implements
      * {@inheritDoc}
      */
     @Override
-    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+    public void onCreateOptionsMenu(Menu menu, @NonNull MenuInflater inflater) {
         if (mContainerActivity.isFolderPickerMode()) {
             menu.removeItem(R.id.action_select_all);
             menu.removeItem(R.id.action_search);
@@ -265,6 +282,7 @@ public class LocalFileListFragment extends ExtendedListFragment implements
     }
 
     public void sortFiles(FileSortOrder sortOrder) {
+        mSortButton.setText(DisplayUtils.getSortOrderStringId(sortOrder));
         mAdapter.setSortOrder(sortOrder);
     }
 

src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -1315,16 +1315,6 @@ public class OCFileListFragment extends ExtendedListFragment implements
         mAdapter.setSortOrder(mFile, sortOrder);
     }
 
-    private void setGridSwitchButton() {
-        if (isGridEnabled()) {
-            mSwitchGridViewButton.setContentDescription(getString(R.string.action_switch_list_view));
-            mSwitchGridViewButton.setIcon(ContextCompat.getDrawable(requireContext(), R.drawable.ic_view_list));
-        } else {
-            mSwitchGridViewButton.setContentDescription(getString(R.string.action_switch_grid_view));
-            mSwitchGridViewButton.setIcon(ContextCompat.getDrawable(requireContext(), R.drawable.ic_view_module));
-        }
-    }
-
     /**
      * Determines if user set folder to grid or list view. If folder is not set itself,
      * it finds a parent that is set (at least root is set).

src/main/java/com/owncloud/android/ui/fragment/contactsbackup/ContactListFragment.java

@@ -162,7 +162,7 @@ public class ContactListFragment extends FileFragment implements Injectable {
      * {@inheritDoc}
      */
     @Override
-    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+    public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
         inflater.inflate(R.menu.fragment_contact_list, menu);
     }

src/main/res/layout/upload_files_layout.xml

@@ -25,9 +25,10 @@
 
     <include layout="@layout/toolbar_standard" />
 
-    <fragment
+    <androidx.fragment.app.FragmentContainerView
-        android:id="@+id/local_files_list"
+        android:id="@+id/local_files_list_container"
-        class="com.owncloud.android.ui.fragment.LocalFileListFragment"
+        android:name="com.owncloud.android.ui.fragment.LocalFileListFragment"
+        android:tag="local_files_list"
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_weight="1" />