Migrate to ViewPager2 in ViewSubredditDetailActivity and ViewUserDetailActivity.

This commit is contained in:
Alex Ning 2020-09-20 00:26:47 +08:00
parent 8d2769d45a
commit 4f40f73c98
5 changed files with 168 additions and 223 deletions

View File

@ -270,6 +270,8 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
mLockBottomAppBar = mSharedPreferences.getBoolean(SharedPreferencesUtils.LOCK_BOTTOM_APP_BAR, false);
mDisableSwipingBetweenTabs = mSharedPreferences.getBoolean(SharedPreferencesUtils.DISABLE_SWIPING_BETWEEN_TABS, false);
fragmentManager = getSupportFragmentManager();
if (savedInstanceState != null) {
mFetchUserInfoSuccess = savedInstanceState.getBoolean(FETCH_USER_INFO_STATE);
mFetchSubscriptionsSuccess = savedInstanceState.getBoolean(FETCH_SUBSCRIPTIONS_STATE);
@ -585,7 +587,6 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
navDrawerRecyclerView.setLayoutManager(new LinearLayoutManager(this));
navDrawerRecyclerView.setAdapter(adapter);
fragmentManager = getSupportFragmentManager();
sectionsPagerAdapter = new SectionsPagerAdapter(fragmentManager, getLifecycle());
viewPager2.setAdapter(sectionsPagerAdapter);
viewPager2.setOffscreenPageLimit(3);
@ -614,7 +615,6 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
}
}
}).attach();
//tabLayout.setupWithViewPager(viewPager2);
viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
@ -992,7 +992,7 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
}
}
private class SectionsPagerAdapter extends FragmentStateAdapter{
private class SectionsPagerAdapter extends FragmentStateAdapter {
/*private PostFragment tab1;
private PostFragment tab2;
private PostFragment tab3;*/

View File

@ -10,7 +10,6 @@ import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
@ -19,13 +18,15 @@ import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.Toolbar;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.ViewModelProvider;
import androidx.viewpager.widget.ViewPager;
import androidx.viewpager2.adapter.FragmentStateAdapter;
import androidx.viewpager2.widget.ViewPager2;
import com.bumptech.glide.Glide;
import com.bumptech.glide.RequestManager;
@ -37,6 +38,7 @@ import com.google.android.material.chip.Chip;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;
import com.r0adkll.slidr.Slidr;
import com.r0adkll.slidr.model.SlidrInterface;
@ -66,20 +68,20 @@ import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
import ml.docilealligator.infinityforreddit.Event.ChangeNSFWEvent;
import ml.docilealligator.infinityforreddit.Event.GoBackToMainPageEvent;
import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
import ml.docilealligator.infinityforreddit.Subreddit.FetchSubredditData;
import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
import ml.docilealligator.infinityforreddit.Fragment.SidebarFragment;
import ml.docilealligator.infinityforreddit.FragmentCommunicator;
import ml.docilealligator.infinityforreddit.Infinity;
import ml.docilealligator.infinityforreddit.Message.ReadMessage;
import ml.docilealligator.infinityforreddit.Post.PostDataSource;
import ml.docilealligator.infinityforreddit.R;
import ml.docilealligator.infinityforreddit.Message.ReadMessage;
import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
import ml.docilealligator.infinityforreddit.SortType;
import ml.docilealligator.infinityforreddit.SortTypeSelectionCallback;
import ml.docilealligator.infinityforreddit.Subreddit.FetchSubredditData;
import ml.docilealligator.infinityforreddit.Subreddit.SubredditData;
import ml.docilealligator.infinityforreddit.Subreddit.SubredditViewModel;
import ml.docilealligator.infinityforreddit.Subreddit.SubredditSubscription;
import ml.docilealligator.infinityforreddit.Subreddit.SubredditViewModel;
import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
import ml.docilealligator.infinityforreddit.Utils.Utils;
import pl.droidsonroids.gif.GifImageView;
@ -106,7 +108,7 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
@BindView(R.id.coordinator_layout_view_subreddit_detail_activity)
CoordinatorLayout coordinatorLayout;
@BindView(R.id.view_pager_view_subreddit_detail_activity)
ViewPager viewPager;
ViewPager2 viewPager2;
@BindView(R.id.appbar_layout_view_subreddit_detail_activity)
AppBarLayout appBarLayout;
@BindView(R.id.collapsing_toolbar_layout_view_subreddit_detail_activity)
@ -169,6 +171,7 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
@Inject
CustomThemeWrapper mCustomThemeWrapper;
public SubredditViewModel mSubredditViewModel;
private FragmentManager fragmentManager;
private SectionsPagerAdapter sectionsPagerAdapter;
private boolean mNullAccessToken = false;
private String mAccessToken;
@ -300,6 +303,8 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
subredditName = getIntent().getStringExtra(EXTRA_SUBREDDIT_NAME_KEY);
fragmentManager = getSupportFragmentManager();
if (savedInstanceState == null) {
mMessageFullname = getIntent().getStringExtra(EXTRA_MESSAGE_FULLNAME);
mNewAccountName = getIntent().getStringExtra(EXTRA_NEW_ACCOUNT_NAME);
@ -639,8 +644,8 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
}
}).execute();
sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), getLifecycle());
viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
if (position == 0) {
@ -648,38 +653,33 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
} else {
lockSwipeRightToGoBack();
}
}
});
viewPager.setAdapter(sectionsPagerAdapter);
viewPager.setOffscreenPageLimit(2);
tabLayout.setupWithViewPager(viewPager);
boolean viewSidebar = getIntent().getBooleanExtra(EXTRA_VIEW_SIDEBAR, false);
if (viewSidebar) {
viewPager.setCurrentItem(1, false);
}
viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
if (mAccessToken != null) {
if (showBottomAppBar) {
bottomNavigationView.performShow();
}
fab.show();
}
if (isInLazyMode) {
if (viewPager.getCurrentItem() == 0) {
sectionsPagerAdapter.resumeLazyMode();
} else {
sectionsPagerAdapter.pauseLazyMode();
}
}
sectionsPagerAdapter.displaySortTypeInToolbar();
}
});
viewPager2.setAdapter(sectionsPagerAdapter);
viewPager2.setOffscreenPageLimit(2);
viewPager2.setUserInputEnabled(!mSharedPreferences.getBoolean(SharedPreferencesUtils.DISABLE_SWIPING_BETWEEN_TABS, false));
new TabLayoutMediator(tabLayout, viewPager2, (tab, position) -> {
switch (position) {
case 0:
tab.setText("Posts");
case 1:
tab.setText("Sidebar");
}
}).attach();
boolean viewSidebar = getIntent().getBooleanExtra(EXTRA_VIEW_SIDEBAR, false);
if (viewSidebar) {
viewPager2.setCurrentItem(1, false);
}
}
@Override
@ -904,17 +904,17 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
}
}
private class SectionsPagerAdapter extends FragmentPagerAdapter {
private PostFragment postFragment;
private SidebarFragment sidebarFragment;
private class SectionsPagerAdapter extends FragmentStateAdapter {
/*private PostFragment postFragment;
private SidebarFragment sidebarFragment;*/
SectionsPagerAdapter(FragmentManager fm) {
super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
SectionsPagerAdapter(FragmentManager fm, Lifecycle lifecycle) {
super(fm, lifecycle);
}
@NonNull
@Override
public Fragment getItem(int position) {
public Fragment createFragment(int position) {
if (position == 0) {
PostFragment fragment = new PostFragment();
Bundle bundle = new Bundle();
@ -933,118 +933,93 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
return fragment;
}
@Override
public int getCount() {
return 2;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Posts";
case 1:
return "Sidebar";
@Nullable
private Fragment getCurrentFragment() {
if (fragmentManager == null) {
return null;
}
return null;
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
Fragment fragment = (Fragment) super.instantiateItem(container, position);
switch (position) {
case 0:
postFragment = (PostFragment) fragment;
displaySortTypeInToolbar();
break;
case 1:
sidebarFragment = (SidebarFragment) fragment;
}
return fragment;
return fragmentManager.findFragmentByTag("f" + viewPager2.getCurrentItem());
}
public boolean handleKeyDown(int keyCode) {
return viewPager.getCurrentItem() == 0 && postFragment.handleKeyDown(keyCode);
if (viewPager2.getCurrentItem() == 0) {
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
return ((PostFragment) fragment).handleKeyDown(keyCode);
}
}
return false;
}
public void refresh() {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
postFragment.refresh();
}
} else {
if (sidebarFragment != null) {
sidebarFragment.fetchSubredditData();
}
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).refresh();
} else if (fragment instanceof SidebarFragment) {
((SidebarFragment) fragment).fetchSubredditData();
}
}
boolean startLazyMode() {
if (postFragment != null) {
return ((FragmentCommunicator) postFragment).startLazyMode();
Fragment fragment = getCurrentFragment();
if (fragment instanceof FragmentCommunicator) {
return ((FragmentCommunicator) fragment).startLazyMode();
}
return false;
}
void stopLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).stopLazyMode();
}
}
void resumeLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).resumeLazyMode(false);
}
}
void pauseLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).pauseLazyMode(false);
Fragment fragment = getCurrentFragment();
if (fragment instanceof FragmentCommunicator) {
((FragmentCommunicator) fragment).stopLazyMode();
}
}
public void changeSortType(SortType sortType) {
if (postFragment != null) {
postFragment.changeSortType(sortType);
displaySortTypeInToolbar();
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeSortType(sortType);
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
}
public void changeNSFW(boolean nsfw) {
if (postFragment != null) {
postFragment.changeNSFW(nsfw);
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeNSFW(nsfw);
}
}
void changePostLayout(int postLayout) {
if (postFragment != null) {
mPostLayoutSharedPreferences.edit().putInt(SharedPreferencesUtils.POST_LAYOUT_SUBREDDIT_POST_BASE + subredditName, postLayout).apply();
((FragmentCommunicator) postFragment).changePostLayout(postLayout);
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changePostLayout(postLayout);
}
}
void goBackToTop() {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
postFragment.goBackToTop();
}
} else {
if (sidebarFragment != null) {
sidebarFragment.goBackToTop();
}
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).goBackToTop();
} else if (fragment instanceof SidebarFragment) {
((SidebarFragment) fragment).goBackToTop();
}
}
void displaySortTypeInToolbar() {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
SortType sortType = postFragment.getSortType();
if (fragmentManager != null) {
Fragment fragment = fragmentManager.findFragmentByTag("f" + viewPager2.getCurrentItem());
if (fragment instanceof PostFragment) {
SortType sortType = ((PostFragment) fragment).getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
}
}
@Override
public int getItemCount() {
return 2;
}
}
private void lockSwipeRightToGoBack() {

View File

@ -12,7 +12,6 @@ import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.LinearLayout;
@ -20,13 +19,15 @@ import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.Toolbar;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.ViewModelProvider;
import androidx.viewpager.widget.ViewPager;
import androidx.viewpager2.adapter.FragmentStateAdapter;
import androidx.viewpager2.widget.ViewPager2;
import com.bumptech.glide.Glide;
import com.bumptech.glide.RequestManager;
@ -37,6 +38,7 @@ import com.google.android.material.chip.Chip;
import com.google.android.material.dialog.MaterialAlertDialogBuilder;
import com.google.android.material.snackbar.Snackbar;
import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;
import com.r0adkll.slidr.Slidr;
import com.r0adkll.slidr.model.SlidrInterface;
@ -104,7 +106,7 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
@BindView(R.id.coordinator_layout_view_user_detail_activity)
CoordinatorLayout coordinatorLayout;
@BindView(R.id.view_pager_view_user_detail_activity)
ViewPager viewPager;
ViewPager2 viewPager2;
@BindView(R.id.appbar_layout_view_user_detail)
AppBarLayout appBarLayout;
@BindView(R.id.toolbar_view_user_detail_activity)
@ -149,6 +151,7 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
@Inject
CustomThemeWrapper mCustomThemeWrapper;
public UserViewModel userViewModel;
private FragmentManager fragmentManager;
private SectionsPagerAdapter sectionsPagerAdapter;
private SubscribedUserDao subscribedUserDao;
private RequestManager glide;
@ -198,6 +201,8 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
username = getIntent().getStringExtra(EXTRA_USER_NAME_KEY);
fragmentManager = getSupportFragmentManager();
if (savedInstanceState == null) {
mMessageFullname = getIntent().getStringExtra(EXTRA_MESSAGE_FULLNAME);
mNewAccountName = getIntent().getStringExtra(EXTRA_NEW_ACCOUNT_NAME);
@ -509,21 +514,22 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
}
private void initializeViewPager() {
sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(sectionsPagerAdapter);
viewPager.setOffscreenPageLimit(2);
tabLayout.setupWithViewPager(viewPager);
sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), getLifecycle());
viewPager2.setAdapter(sectionsPagerAdapter);
viewPager2.setOffscreenPageLimit(2);
viewPager2.setUserInputEnabled(!mSharedPreferences.getBoolean(SharedPreferencesUtils.DISABLE_SWIPING_BETWEEN_TABS, false));
new TabLayoutMediator(tabLayout, viewPager2, (tab, position) -> {
switch (position) {
case 0:
tab.setText("Posts");
case 1:
tab.setText("Comments");
}
}).attach();
viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
if (isInLazyMode) {
if (viewPager.getCurrentItem() == 0) {
sectionsPagerAdapter.resumeLazyMode();
} else {
sectionsPagerAdapter.pauseLazyMode();
}
}
if (position == 0) {
unlockSwipeRightToGoBack();
} else {
@ -809,17 +815,15 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
}
}
private class SectionsPagerAdapter extends FragmentPagerAdapter {
private PostFragment postFragment;
private CommentsListingFragment commentsListingFragment;
private class SectionsPagerAdapter extends FragmentStateAdapter {
SectionsPagerAdapter(FragmentManager fm) {
super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
SectionsPagerAdapter(FragmentManager fm, Lifecycle lifecycle) {
super(fm, lifecycle);
}
@NonNull
@Override
public Fragment getItem(int position) {
public Fragment createFragment(int position) {
if (position == 0) {
PostFragment fragment = new PostFragment();
Bundle bundle = new Bundle();
@ -843,134 +847,100 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
}
@Override
public int getCount() {
public int getItemCount() {
return 2;
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Posts";
case 1:
return "Comments";
@Nullable
private Fragment getCurrentFragment() {
if (viewPager2 == null || fragmentManager == null) {
return null;
}
return null;
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
Fragment fragment = (Fragment) super.instantiateItem(container, position);
switch (position) {
case 0:
postFragment = (PostFragment) fragment;
break;
case 1:
commentsListingFragment = (CommentsListingFragment) fragment;
}
displaySortTypeInToolbar();
return fragment;
return fragmentManager.findFragmentByTag("f" + viewPager2.getCurrentItem());
}
public boolean handleKeyDown(int keyCode) {
return viewPager.getCurrentItem() == 0 && postFragment.handleKeyDown(keyCode);
if (viewPager2.getCurrentItem() == 0) {
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
return ((PostFragment) fragment).handleKeyDown(keyCode);
}
}
return false;
}
public void refresh() {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
postFragment.refresh();
}
} else {
if (commentsListingFragment != null) {
commentsListingFragment.refresh();
}
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).refresh();
} else if (fragment instanceof CommentsListingFragment) {
((CommentsListingFragment) fragment).refresh();
}
}
boolean startLazyMode() {
if (postFragment != null) {
return ((FragmentCommunicator) postFragment).startLazyMode();
Fragment fragment = getCurrentFragment();
if (fragment instanceof FragmentCommunicator) {
return ((FragmentCommunicator) fragment).startLazyMode();
}
return false;
}
void stopLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).stopLazyMode();
}
}
void resumeLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).resumeLazyMode(false);
}
}
void pauseLazyMode() {
if (postFragment != null) {
((FragmentCommunicator) postFragment).pauseLazyMode(false);
Fragment fragment = getCurrentFragment();
if (fragment instanceof FragmentCommunicator) {
((FragmentCommunicator) fragment).stopLazyMode();
}
}
public void changeSortType(SortType sortType) {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
postFragment.changeSortType(sortType);
}
} else {
if (commentsListingFragment != null) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_USER_COMMENT, sortType.getType().name()).apply();
if(sortType.getTime() != null) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TIME_USER_COMMENT, sortType.getTime().name()).apply();
}
commentsListingFragment.changeSortType(sortType);
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeSortType(sortType);
Utils.displaySortTypeInToolbar(sortType, toolbar);
} else if (fragment instanceof CommentsListingFragment) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_USER_COMMENT, sortType.getType().name()).apply();
if(sortType.getTime() != null) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TIME_USER_COMMENT, sortType.getTime().name()).apply();
}
((CommentsListingFragment) fragment).changeSortType(sortType);
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
displaySortTypeInToolbar();
}
public void changeNSFW(boolean nsfw) {
if (postFragment != null) {
postFragment.changeNSFW(nsfw);
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeNSFW(nsfw);
}
}
void changePostLayout(int postLayout) {
if (postFragment != null) {
mPostLayoutSharedPreferences.edit().putInt(SharedPreferencesUtils.POST_LAYOUT_USER_POST_BASE + username, postLayout).apply();
((FragmentCommunicator) postFragment).changePostLayout(postLayout);
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changePostLayout(postLayout);
}
}
void goBackToTop() {
if (viewPager.getCurrentItem() == 0) {
if (postFragment != null) {
postFragment.goBackToTop();
}
} else {
if (commentsListingFragment != null) {
commentsListingFragment.goBackToTop();
}
Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).goBackToTop();
} else if (fragment instanceof CommentsListingFragment) {
((CommentsListingFragment) fragment).goBackToTop();
}
}
void displaySortTypeInToolbar() {
switch (viewPager.getCurrentItem()) {
case 0:
if (postFragment != null) {
SortType sortType = postFragment.getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
break;
case 1:
if (commentsListingFragment != null) {
SortType sortType = commentsListingFragment.getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
break;
if (fragmentManager != null) {
Fragment fragment = fragmentManager.findFragmentByTag("f" + viewPager2.getCurrentItem());
if (fragment instanceof PostFragment) {
SortType sortType = ((PostFragment) fragment).getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
} else if (fragment instanceof CommentsListingFragment) {
SortType sortType = ((CommentsListingFragment) fragment).getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
}
}
}

View File

@ -7,7 +7,7 @@
android:id="@+id/coordinator_layout_view_subreddit_detail_activity"
tools:application=".Activity.ViewSubredditDetailActivity">
<androidx.viewpager.widget.ViewPager
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/view_pager_view_subreddit_detail_activity"
android:layout_width="match_parent"
android:layout_height="wrap_content"

View File

@ -7,7 +7,7 @@
android:id="@+id/coordinator_layout_view_user_detail_activity"
tools:application=".ViewUserDetailActivity">
<androidx.viewpager.widget.ViewPager
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/view_pager_view_user_detail_activity"
android:layout_width="match_parent"
android:layout_height="wrap_content"