我是Android新手，我正在创建一个应用程序，并且我有一个列表片段问题，因为列表显示但它与标题栏重叠（我必须添加边距顶部来改变它），而且我正在使用抽屉并且当我尝试时要打开它在选项抽屉上显示的列表，请让我粘贴代码和图像，以便您可以了解更多信息：
xml代码：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1">
<ListView
android:layout_width="match_parent"
android:layout_height="420dp"
android:id="@android:id/list"
android:layout_weight="0.82"
android:layout_marginTop="60dp" />
</LinearLayout>
列表片段代码：
public class FragmentoPrincipalChofer extends ListFragment {
private List<ParseObject> mViaje;
private ListView mLista;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View x = inflater.inflate(R.layout.fragmento_principal_chofer, container, false);
mLista = (ListView)x.findViewById(android.R.id.list);
return x;
}
@Override
public void onResume() {
super.onResume();
//obtener pedido de taxi
ParseQuery<ParseObject> query = ParseQuery.getQuery("Viaje");
query.whereEqualTo("chofer", "prueba3");
query.addDescendingOrder("createdAt");
query.findInBackground(new FindCallback<ParseObject>() {
public void done(List<ParseObject> viajes, com.parse.ParseException e) {
if (e == null) {
mViaje=viajes;
String[] nombreUsuarios = new String[mViaje.size()];
int i=0;
for (ParseObject viaje : mViaje){
nombreUsuarios[i] = viaje.getString("cliente");
i++;
}
ArrayAdapter<String> adaptador = new ArrayAdapter<String>(getListView().getContext(),android.R.layout.simple_list_item_1,nombreUsuarios);
mLista.setAdapter(adaptador);
} else {
}
}
});
}
}
主抽屉代码：
public class DrawerPrincipal extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener,FragmentoPrincipalUsuario.OnFragmentInteractionListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer_principal);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//cargar fragment principal usuario
FragmentoPrincipalChofer fragmento=(FragmentoPrincipalChofer) getSupportFragmentManager().findFragmentByTag("fragmento");
if (fragmento==null){
fragmento=new FragmentoPrincipalChofer();
android.support.v4.app.FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.add(android.R.id.content,fragmento,"fragmento");
transaction.commit();
}
/*
FragmentoPrincipalUsuario principal = new FragmentoPrincipalUsuario();
android.support.v4.app.FragmentTransaction FragmentTransaction =
getSupportFragmentManager().beginTransaction();
FragmentTransaction.replace(R.id.contenedor_principal,principal);
FragmentTransaction.commit();
*/
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.setDrawerListener(toggle);
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();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.pantalla_principal_usuario, 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.cuenta) {
// Handle the camera action
} else if (id == R.id.historial_viajes) {
} else if (id == R.id.contacto) {
} else if (id == R.id.compartir) {
} else if (id == R.id.version) {
} else if (id == R.id.salir) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public void onFragmentInteraction(Uri uri) {
}
}
列表片段重叠 https://i.stack.imgur.com/Wn661.png
这里是activity_drawer_principal.xml：
<?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_drawer_principal"
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_drawer_principal"
app:menu="@menu/activity_pantalla_principal_usuario_drawer" />
</android.support.v4.widget.DrawerLayout>
这是app_bar_drawer_principal：
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".DrawerPrincipal">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<FrameLayout
android:id="@+id/contenedor_principal"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<include layout="@layout/content_drawer_principal" />
</android.support.design.widget.CoordinatorLayout>
