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Code Issues Packages Projects Releases Wiki Activity

Migrate to ViewPager2 in SearchResultActivity.

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This commit is contained in:
Alex Ning 2020-09-23 00:26:05 +08:00
parent 58af3557e8
commit 31c32148bc
4 changed files with 91 additions and 108 deletions
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183
app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SearchResultActivity.java
View File

@ -8,20 +8,22 @@ import android.view.KeyEvent;
import android.view.Menu; import android.view.Menu;
import android.view.MenuItem; import android.view.MenuItem;
import android.view.View; import android.view.View;
import android.view.ViewGroup;
import android.view.Window; import android.view.Window;
import android.view.WindowManager; import android.view.WindowManager;
import androidx.annotation.NonNull; import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.Toolbar; import androidx.appcompat.widget.Toolbar;
import androidx.coordinatorlayout.widget.CoordinatorLayout; import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.fragment.app.Fragment; import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager; import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter; import androidx.lifecycle.Lifecycle;
import androidx.viewpager.widget.ViewPager; import androidx.viewpager2.adapter.FragmentStateAdapter;
import androidx.viewpager2.widget.ViewPager2;
import com.google.android.material.appbar.AppBarLayout; import com.google.android.material.appbar.AppBarLayout;
import com.google.android.material.tabs.TabLayout; import com.google.android.material.tabs.TabLayout;
import com.google.android.material.tabs.TabLayoutMediator;
import com.r0adkll.slidr.Slidr; import com.r0adkll.slidr.Slidr;
import com.r0adkll.slidr.model.SlidrInterface; import com.r0adkll.slidr.model.SlidrInterface;
@ -72,7 +74,7 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
@BindView(R.id.tab_layout_search_result_activity) @BindView(R.id.tab_layout_search_result_activity)
TabLayout tabLayout; TabLayout tabLayout;
@BindView(R.id.view_pager_search_result_activity) @BindView(R.id.view_pager_search_result_activity)
ViewPager viewPager; ViewPager2 viewPager2;
@Inject @Inject
RedditDataRoomDatabase mRedditDataRoomDatabase; RedditDataRoomDatabase mRedditDataRoomDatabase;
@Inject @Inject
@ -91,6 +93,7 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
private String mAccountName; private String mAccountName;
private String mQuery; private String mQuery;
private String mSubredditName; private String mSubredditName;
private FragmentManager fragmentManager;
private SectionsPagerAdapter sectionsPagerAdapter; private SectionsPagerAdapter sectionsPagerAdapter;
private SearchPostSortTypeBottomSheetFragment searchPostSortTypeBottomSheetFragment; private SearchPostSortTypeBottomSheetFragment searchPostSortTypeBottomSheetFragment;
private SortTimeBottomSheetFragment sortTimeBottomSheetFragment; private SortTimeBottomSheetFragment sortTimeBottomSheetFragment;
@ -139,6 +142,8 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setDisplayHomeAsUpEnabled(true);
setToolbarGoToTop(toolbar); setToolbarGoToTop(toolbar);
fragmentManager = getSupportFragmentManager();
if (savedInstanceState == null) { if (savedInstanceState == null) {
getCurrentAccountAndInitializeViewPager(); getCurrentAccountAndInitializeViewPager();
} else { } else {
@ -212,10 +217,11 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
} }
private void initializeViewPager() { private void initializeViewPager() {
sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), getLifecycle());
viewPager.setAdapter(sectionsPagerAdapter); viewPager2.setAdapter(sectionsPagerAdapter);
viewPager.setOffscreenPageLimit(2); viewPager2.setOffscreenPageLimit(3);
viewPager.addOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() { viewPager2.setUserInputEnabled(!mSharedPreferences.getBoolean(SharedPreferencesUtils.DISABLE_SWIPING_BETWEEN_TABS, false));
viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override @Override
public void onPageSelected(int position) { public void onPageSelected(int position) {
sectionsPagerAdapter.displaySortTypeInToolbar(); sectionsPagerAdapter.displaySortTypeInToolbar();
@ -226,7 +232,19 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
} }
} }
}); });
tabLayout.setupWithViewPager(viewPager); new TabLayoutMediator(tabLayout, viewPager2, (tab, position) -> {
switch (position) {
case 0:
tab.setText("Posts");
break;
case 1:
tab.setText("Comments");
break;
case 2:
tab.setText("Users");
break;
}
}).attach();
} }
@Override @Override
@ -243,7 +261,7 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
onBackPressed(); onBackPressed();
return true; return true;
case R.id.action_sort_search_result_activity: case R.id.action_sort_search_result_activity:
switch (viewPager.getCurrentItem()) { switch (viewPager2.getCurrentItem()) {
case 0: { case 0: {
searchPostSortTypeBottomSheetFragment.show(getSupportFragmentManager(), searchPostSortTypeBottomSheetFragment.getTag()); searchPostSortTypeBottomSheetFragment.show(getSupportFragmentManager(), searchPostSortTypeBottomSheetFragment.getTag());
break; break;
@ -251,7 +269,7 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
case 1: case 1:
case 2: case 2:
Bundle bundle = new Bundle(); Bundle bundle = new Bundle();
bundle.putInt(SearchUserAndSubredditSortTypeBottomSheetFragment.EXTRA_FRAGMENT_POSITION, viewPager.getCurrentItem()); bundle.putInt(SearchUserAndSubredditSortTypeBottomSheetFragment.EXTRA_FRAGMENT_POSITION, viewPager2.getCurrentItem());
searchUserAndSubredditSortTypeBottomSheetFragment.setArguments(bundle); searchUserAndSubredditSortTypeBottomSheetFragment.setArguments(bundle);
searchUserAndSubredditSortTypeBottomSheetFragment.show(getSupportFragmentManager(), searchUserAndSubredditSortTypeBottomSheetFragment.getTag()); searchUserAndSubredditSortTypeBottomSheetFragment.show(getSupportFragmentManager(), searchUserAndSubredditSortTypeBottomSheetFragment.getTag());
break; break;
@ -337,19 +355,15 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
} }
} }
private class SectionsPagerAdapter extends FragmentPagerAdapter { private class SectionsPagerAdapter extends FragmentStateAdapter {
private PostFragment postFragment; public SectionsPagerAdapter(FragmentManager fm, Lifecycle lifecycle) {
private SubredditListingFragment subredditListingFragment; super(fm, lifecycle);
private UserListingFragment userListingFragment;
public SectionsPagerAdapter(FragmentManager fm) {
super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
} }
@NonNull @NonNull
@Override @Override
public Fragment getItem(int position) { public Fragment createFragment(int position) {
switch (position) { switch (position) {
case 0: { case 0: {
PostFragment mFragment = new PostFragment(); PostFragment mFragment = new PostFragment();
@ -384,123 +398,92 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
} }
} }
@Override @Nullable
public int getCount() { private Fragment getCurrentFragment() {
return 3; if (viewPager2 == null || fragmentManager == null) {
}
@Override
public CharSequence getPageTitle(int position) {
switch (position) {
case 0:
return "Posts";
case 1:
return "Subreddits";
case 2:
return "Users";
}
return null; return null;
} }
return fragmentManager.findFragmentByTag("f" + viewPager2.getCurrentItem());
@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:
subredditListingFragment = (SubredditListingFragment) fragment;
break;
case 2:
userListingFragment = (UserListingFragment) fragment;
break;
}
displaySortTypeInToolbar();
return fragment;
} }
public boolean handleKeyDown(int keyCode) { 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;
} }
void changeSortType(SortType sortType) { void changeSortType(SortType sortType) {
postFragment.changeSortType(sortType); Fragment fragment = getCurrentFragment();
if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeSortType(sortType);
displaySortTypeInToolbar(); displaySortTypeInToolbar();
} }
}
void changeSortType(SortType sortType, int fragmentPosition) { void changeSortType(SortType sortType, int fragmentPosition) {
switch (fragmentPosition) { Fragment fragment = fragmentManager.findFragmentByTag("f" + fragmentPosition);
case 1: if (fragment instanceof SubredditListingFragment) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_SEARCH_SUBREDDIT, sortType.getType().name()).apply(); ((SubredditListingFragment) fragment).changeSortType(sortType);
subredditListingFragment.changeSortType(sortType); } else if (fragment instanceof UserListingFragment) {
break; ((UserListingFragment) fragment).changeSortType(sortType);
case 2:
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_SEARCH_USER, sortType.getType().name()).apply();
userListingFragment.changeSortType(sortType);
} }
displaySortTypeInToolbar(); displaySortTypeInToolbar();
} }
public void refresh() { public void refresh() {
switch (viewPager.getCurrentItem()) { Fragment fragment = getCurrentFragment();
case 0: if (fragment instanceof FragmentCommunicator) {
((FragmentCommunicator) postFragment).refresh(); ((FragmentCommunicator) fragment).refresh();
break;
case 1:
((FragmentCommunicator) subredditListingFragment).refresh();
break;
case 2:
((FragmentCommunicator) userListingFragment).refresh();
break;
} }
} }
void changeNSFW(boolean nsfw) { void changeNSFW(boolean nsfw) {
if (postFragment != null) { Fragment fragment = getCurrentFragment();
postFragment.changeNSFW(nsfw); if (fragment instanceof PostFragment) {
((PostFragment) fragment).changeNSFW(nsfw);
} }
} }
void changePostLayout(int postLayout) { void changePostLayout(int postLayout) {
if (postFragment != null) { Fragment fragment = getCurrentFragment();
mPostLayoutSharedPreferences.edit().putInt(SharedPreferencesUtils.POST_LAYOUT_SEARCH_POST, postLayout).apply(); if (fragment instanceof PostFragment) {
((FragmentCommunicator) postFragment).changePostLayout(postLayout); ((PostFragment) fragment).changePostLayout(postLayout);
} }
} }
void goBackToTop() { void goBackToTop() {
if (viewPager.getCurrentItem() == 0) { Fragment fragment = getCurrentFragment();
postFragment.goBackToTop(); if (fragment instanceof PostFragment) {
} else if (viewPager.getCurrentItem() == 1) { ((PostFragment) fragment).goBackToTop();
subredditListingFragment.goBackToTop(); } else if (fragment instanceof SubredditListingFragment) {
} else { ((SubredditListingFragment) fragment).goBackToTop();
userListingFragment.goBackToTop(); } else if (fragment instanceof UserListingFragment) {
((UserListingFragment) fragment).goBackToTop();
} }
} }
void displaySortTypeInToolbar() { void displaySortTypeInToolbar() {
switch (viewPager.getCurrentItem()) { Fragment fragment = getCurrentFragment();
case 0: if (fragment instanceof PostFragment) {
if (postFragment != null) { SortType sortType = ((PostFragment) fragment).getSortType();
SortType sortType = postFragment.getSortType(); Utils.displaySortTypeInToolbar(sortType, toolbar);
} else if (fragment instanceof SubredditListingFragment) {
SortType sortType = ((SubredditListingFragment) fragment).getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
} else if (fragment instanceof UserListingFragment) {
SortType sortType = ((UserListingFragment) fragment).getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar); Utils.displaySortTypeInToolbar(sortType, toolbar);
} }
break;
case 1:
if (subredditListingFragment != null) {
SortType sortType = subredditListingFragment.getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
break;
case 2:
if (userListingFragment != null) {
SortType sortType = userListingFragment.getSortType();
Utils.displaySortTypeInToolbar(sortType, toolbar);
}
break;
} }
@Override
public int getItemCount() {
return 3;
} }
} }

1
app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/SubredditListingFragment.java
View File

@ -205,6 +205,7 @@ public class SubredditListingFragment extends Fragment implements FragmentCommun
} }
public void changeSortType(SortType sortType) { public void changeSortType(SortType sortType) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_SEARCH_SUBREDDIT, sortType.getType().name()).apply();
mSubredditListingViewModel.changeSortType(sortType); mSubredditListingViewModel.changeSortType(sortType);
this.sortType = sortType; this.sortType = sortType;
} }

1
app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/UserListingFragment.java
View File

@ -185,6 +185,7 @@ public class UserListingFragment extends Fragment implements FragmentCommunicato
} }
public void changeSortType(SortType sortType) { public void changeSortType(SortType sortType) {
mSortTypeSharedPreferences.edit().putString(SharedPreferencesUtils.SORT_TYPE_SEARCH_USER, sortType.getType().name()).apply();
mUserListingViewModel.changeSortType(sortType); mUserListingViewModel.changeSortType(sortType);
this.sortType = sortType; this.sortType = sortType;
} }

6
app/src/main/res/layout/activity_search_result.xml
View File

@ -1,7 +1,6 @@
<?xml version="1.0" encoding="utf-8"?> <?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"
android:id="@+id/coordinator_layout_search_result_activity"> android:id="@+id/coordinator_layout_search_result_activity">
@ -42,11 +41,10 @@
</com.google.android.material.appbar.AppBarLayout> </com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager <androidx.viewpager2.widget.ViewPager2
android:id="@+id/view_pager_search_result_activity" android:id="@+id/view_pager_search_result_activity"
android:layout_width="match_parent" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" app:layout_behavior="@string/appbar_scrolling_view_behavior" />
tools:application=".SearchResultActivity" />
</androidx.coordinatorlayout.widget.CoordinatorLayout> </androidx.coordinatorlayout.widget.CoordinatorLayout>