我想实现一个导航抽屉来显示一个列表视图,在内容中包含已经创建的活动与另一个列表视图,当我想运行应用程序时它崩溃了这个错误在logcat中: 其中一个错误是在setContentView的抽屉java类的onCreate中。我是从一个片段开始抽屉活动的,这引出了一个问题,如果这是问题吗?我好像没有发现问题。
11-18 20:30:48.772 23674-23674 / com.brainstorm.brainstormv1 E / AndroidRuntime:> FATAL EXCEPTION:main
流程:com.brainstorm.brainstormv1,PID:23674 java.lang.RuntimeException:无法启动活动> ComponentInfo {com.brainstorm.brainstormv1 / com.brainstorm.brainstormv1.Activitie> s.IdeasActivityDrawer}:android.view.InflateException:二进制XML文件行#0:>二进制XML文件行#0:错误膨胀类片段 在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2924) 在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2985) 在android.app.ActivityThread.-wrap14(ActivityThread.java) 在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1635) 在android.os.Handler.dispatchMessage(Handler.java:102) 在android.os.Looper.loop(Looper.java:154) 在android.app.ActivityThread.main(ActivityThread.java:6692) at java.lang.reflect.Method.invoke(Native Method) 在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:1468) 在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358) 引起:android.view.InflateException:二进制XML文件行#0:二进制XML文件行#0:错误膨胀类片段 引起:android.view.InflateException:二进制XML文件行#0:错误膨胀类片段 引起:java.lang.NullPointerException at java.lang.VMClassLoader.findLoadedClass(Native Method) at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:742) at java.lang.ClassLoader.loadClass(ClassLoader.java:362) 在java.lang.ClassLoader.loadClass(ClassLoader.java:312) 在android.support.v4.app.Fragment.isSupportFragmentClass(Fragment.java:499) 在android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3637) 在android.support.v4.app.FragmentController.onCreateView(FragmentController.java:111) 在android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:338) 在android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39) 在android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:67) 在android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:784) 在android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:734) 在android.view.LayoutInflater.rInflate(LayoutInflater.java:865) 在android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828) 在android.view.LayoutInflater.rInflate(LayoutInflater.java:873) 在android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828) 在android.view.LayoutInflater.parseInclude(LayoutInflater.java:1011) 在android.view.LayoutInflater.rInflate(LayoutInflater.java:861) 在android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828) 在android.view.LayoutInflater.parseInclude(LayoutInflater.java:1011) 在android.view.LayoutInflater.rInflate(LayoutInflater.java:861) 在android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828) 在android.view.LayoutInflater.parseInclude(LayoutInflater.java:1011) 在android.view.LayoutInflater.rInflate(LayoutInflater.java:861) 在android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828) 在android.view.LayoutInflater.inflate(LayoutInflater.java:525) 在android.view.LayoutInflater.inflate(LayoutInflater.java:427) 在android.view.LayoutInflater.inflate(LayoutInflater.java:378) 在android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287) 在android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) at com.brainstorm.brainstormv1.Activities.IdeasActivityDrawer.onCreate(IdeasActivityDrawer.java:32) 在android.app.Activity.performCreate(Activity.java:6912) 在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126) 在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2877) 在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2985) 在android.app.ActivityThread.-wrap14(ActivityThread.java) 在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1635) 11-18 20:30:48.772 23674-23674 / com.brainstorm.brainstormv1 E / AndroidRuntime:at android.os.Handler.dispatchMessage(Handler.java:102) 在android.os.Looper.loop(Looper.java:154) 在android.app.ActivityThread.main(ActivityThread.java:6692) at java.lang.reflect.Method.invoke(Native Method) 在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:1468) 在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358)
这是我的java类,所有内容都是使用google模板自动创建的,只是在抽屉中为listview添加了我的customadapter以及如何创建数据。
public class IdeasActivityDrawer extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ideas_drawer); //the line the error from the logcat points at
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
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);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
ListView groupUsers = (ListView) findViewById(R.id.lv_groupmembers);
CustomAdapterContact adapter = new CustomAdapterContact(this, generateData());
groupUsers.setAdapter(adapter);
groupUsers.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (position!=0)
{
Log.e("position", Integer.toString(position));
}
}
});
//navigationView.setNavigationItemSelectedListener(this);
}
private ArrayList<ModelContacts> generateData()
{
ArrayList<ModelContacts> modelContacts = new ArrayList<ModelContacts>();
modelContacts.add(new ModelContacts("Contacts"));
modelContacts.add(new ModelContacts(R.drawable.avatar_circle_blue_120dp, "ContactName"));
return modelContacts;
}
@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.ideas_activity_drawer, 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_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}*/
EDIT- XML代码: 活动本身:
<?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_ideas_activity_drawer"
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">
<ListView
android:id="@+id/lv_groupmembers"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="55dp" />
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
app_bar_ideas_activity:
<?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"
tools:context="com.brainstorm.brainstormv1.Activities.IdeasActivityDrawer">
<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" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_ideas_activity_drawer" />
content_ideas_activity:
<?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"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.brainstorm.brainstormv1.Activities.IdeasActivityDrawer"
tools:showIn="@layout/app_bar_ideas_activity_drawer">
<include
layout="@layout/activity_ideas"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>