Мне нужна помощь с моим приложением для Android.Проблема, с которой я столкнулся, заключается в том, что я создал базовое действие, управляющее компоновкой ящика и панелью инструментов.Когда я расширяю его в действии для Relative Layout и вложенного Recycle View, у меня возникает проблема, что я не могу прокрутить его (но, когда действие начинается, я могу уловить момент и сделать это, но один раз).Другая ситуация - я открыл приложение, не расширяя базовую активность в своей активности для RecycleView, и оно работает нормально.
RecyclerView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".EntryList"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:id="@+id/entry_list">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/white"
android:padding="4dp"
android:scrollbars="vertical"
app:layoutManager="android.support.v7.widget.LinearLayoutManager" />
</RelativeLayout>
Основная активность (Drawer):
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
Панель инструментов, включенная в ящик:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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/coordinator_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorWhite"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@drawable/gradient_color"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<FrameLayout
android:id="@+id/activity_content"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
Базовая активность:
public abstract class BaseActivity extends AppCompatActivity {
protected Context context;
protected Toolbar toolbar;
private DrawerLayout drawer;
private ProgressBar loadingProgressBar;
private NavigationView navigationView;
private ActionBarDrawerToggle toggle;
@Override
protected void onCreate(Bundle bundle) {
super.onCreate(bundle);
context = BaseActivity.this;
setContentView(R.layout.activity_main);
}
@Override
public void setContentView(int layoutResID) {
DrawerLayout fullView = (DrawerLayout)getLayoutInflater().inflate(R.layout.activity_main, null);
FrameLayout activityContainer = fullView.findViewById(R.id.activity_content);
getLayoutInflater().inflate(layoutResID, activityContainer, true);
super.setContentView(fullView);
initToolBar();
}
private void initToolBar() {
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
@Override
protected void onPostCreate(@Nullable Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
setUpNavigation();
toggle.syncState();
}
private void setUpNavigation() {
drawer = findViewById(R.id.drawer_layout);
toggle = new ActionBarDrawerToggle(BaseActivity.this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
ActionBar actionBar = getSupportActionBar();
if (actionBar == null) {
throw new NullPointerException("ActionBar is null");
}
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setDisplayShowTitleEnabled(false);
navigationView = findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
// Handle navigation view item clicks here.
if (item.isChecked())
item.setChecked(false);
else
item.setChecked(true);
drawer.closeDrawers();
Intent intent;
switch (item.getItemId()) {
case R.id.nav_home:
intent = new Intent(BaseActivity.this, EntryList.class);
startActivity(intent);
return true;
}
return false;
}
});
toggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
toggle.onConfigurationChanged(newConfig);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (toggle.onOptionsItemSelected(item))
return true;
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
Адаптер:
public class EntryListAdapter extends RecyclerView.Adapter<EntryListAdapter.EntryListViewHolder> {
private List<ExampleEntryItem> items;
public static class EntryListViewHolder extends RecyclerView.ViewHolder {
private TextView specieNameRuTextView;
private TextView entryDateTextView;
private TextView specieNameLatTextView;
private TextView entryPlaceTextView;
public EntryListViewHolder(@NonNull View itemView) {
super(itemView);
specieNameRuTextView = itemView.findViewById(R.id.specie_name_ru);
entryDateTextView = itemView.findViewById(R.id.entry_date);
specieNameLatTextView = itemView.findViewById(R.id.specie_name_lat);
entryPlaceTextView = itemView.findViewById(R.id.entry_place);
}
}
public EntryListAdapter(List<ExampleEntryItem> items) {
this.items = items;
}
@NonNull
@Override
public EntryListViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.example_entry_item, parent, false);
return new EntryListViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull EntryListViewHolder entryListViewHolder, int position) {
ExampleEntryItem item = this.items.get(position); // TODO: 06.05.2019 test for null
entryListViewHolder.entryPlaceTextView.setText(item.getEntryPlace());
entryListViewHolder.entryDateTextView.setText(item.getEntryDate());
entryListViewHolder.specieNameRuTextView.setText(item.getSpecieNameRu());
entryListViewHolder.specieNameLatTextView.setText(item.getSpecieNameLat());
}
@Override
public int getItemCount() {
return this.items.size();
}
Класс управления RecycleView:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.entry_list_content_main);
List<ExampleEntryItem> items = new ArrayList<>();
adding items...
RecyclerView recyclerView = findViewById(R.id.recycler_view);
RecyclerView.Adapter adapter = new EntryListAdapter(items);
adapter.notifyDataSetChanged();
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter);
}
Спасибо всем, кто мне поможет