android – 在DrawerLayout中添加RecyclerView
作者：互联网
我希望能够在DrawyerLayout MainActivity的主页面中有一个RecyclerView.但是,如下所示添加我的代码不允许这样做,而RecyclerView是最重要的：
但我仍然可以访问抽屉：
我怎样才能做到这一点？
主要活动：
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private List<Person> persons;
private RecyclerView rv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); // Original activity
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// *** BEGIN THE RECYCLER VIEW *** //
rv=(RecyclerView)findViewById(R.id.rv);
LinearLayoutManager llm = new LinearLayoutManager(this);
rv.setLayoutManager(llm);
rv.setHasFixedSize(true);
initializeData();
initializeAdapter();
// Original Drawer layout code
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle); // drawer.setDrawerListener(toggle); Deprecated
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
// *** REMOVE THE MAIN DROP DOWN MENU ***
@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) {
// 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);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_breakfast) {
// Handle the camera action
} else if (id == R.id.nav_lunch) {
} else if (id == R.id.nav_dinner) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
private void initializeData(){
persons = new ArrayList<>();
persons.add(new Person("Emma Wilson", "23 years old", R.drawable.emma));
persons.add(new Person("Lavery Maiss", "25 years old", R.drawable.lavery));
for ( int i = 0; i <=1000; i++) {
persons.add(new Person("Lillie Watts", "35 years old", R.drawable.lillie));
}
}
private void initializeAdapter(){
RVAdapter adapter = new RVAdapter(persons);
rv.setAdapter(adapter);
}
}
activity_main.xml中：
<?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" />
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp" >
<android.support.v7.widget.RecyclerView
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="@+id/rv">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
更新
现在的观点：
activity_main：
<?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">
<!-- Added to allow RecyclerView -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="@+id/rv">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
解决方法:
首先,您可以从LinearLayout中删除android：padding =“16dp”,这就是您在列表周围看到“空白区域”的原因.
然后你想在< include-d app栏布局上使用wrap_content高度,这样就不会占用整个空间. 只需将LinearLayout移动到NavigationView之外
<?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"
...
<!-- here is the content -->
<LinearLayout
android:orientation="vertical"
...
>
<!-- here is the toolbar -->
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
...
<RecyclerView
...
/>
</LinearLayout>
<!-- here is the drawer -->
<NavigationView
android:layout_gravity="start"
... >
</NavigationView>
</DrawerLayout>
标签：android,android-recyclerview,navigation-drawer 来源： https://codeday.me/bug/20191007/1864696.html