Question

我正在创建一个应用程序，它需要所有活动的相同导航抽屉。为此，我创建了一个扩展Activity（需要子类）并在那里编写Navigation Drawer代码的类。但不适用于setOnItemClickListener

这项工作对我来说

public class MyDrawer extends AppCompatActivity {
ActionBarDrawerToggle toggle;
protected RelativeLayout fullLayout;
protected FrameLayout frameLayout;
@Override
public void setContentView(final int layoutResID) {
    fullLayout = (RelativeLayout) getLayoutInflater().inflate(R.layout.mydrawer, null);
    frameLayout = (FrameLayout) fullLayout.findViewById(R.id.drawer_frame);
    getLayoutInflater().inflate(layoutResID, frameLayout, true);
    super.setContentView(fullLayout);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    //setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(true);
    final DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout3);
    toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.setDrawerListener(toggle);
    toggle.syncState();
    final NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            drawer.closeDrawers();
            int itemId = menuItem.getItemId();
            Toast.makeText(getApplicationContext(), menuItem.getTitle().toString(),
                    Toast.LENGTH_LONG).show();
            //navigationView.getMenu().findItem(R.id.drawer_5_reasons).setChecked(true);
            return true;
        }
    });
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
    if (toggle.onOptionsItemSelected(item))
    {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

}

的xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="0dp"
android:layout_height="0dp"
android:id="@+id/drawer_framelayout">
<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_layout3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start"
>
<FrameLayout
    android:id="@+id/drawer_frame"
    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_main2"
app:menu="@menu/activity_main_drawer"
android:background="#fefefd" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>

使用：

public class yourclass extends MyDrawer {

但

中没有找到项目

 listView.setAdapter(dataAdapter);
 listView.setOnItemClickListener(new OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> listView, View view,
                      int position, long id) {
 // Get the cursor, positioned to the corresponding row in the result set
 Cursor cursor = (Cursor) listView.getItemAtPosition(position);

Answer 1

我不明白listView与导航抽屉有什么关系。如果您尝试在导航抽屉的项目上设置onItemClickListener，则应在setNavigationItemSelectedListener中设置它并执行您想要的任何操作OnNavigationItemSelected（）。

private void setUpDrawerContent(NavigationView navigationView){
    navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            doWhateverYouWant(menuItem);
            return true;
        }
    });
}

由于导航抽屉对于扩展MyDrawer类的所有活动都是相同的，我假设所有活动的功能都相同。如果没有，您可以在子活动中调用相同的方法（setUpDrawerContent（NavigationView nv））。

android：whay setOnItemClickListener无法在getLayoutInflater（）中工作

1 个答案: