撞击班级的崩溃

Question

我是Android的新手，我想实现Action Bar滑动，我阅读教程并编写此内容。在程序中，我使用了framelayout，即带有mapsforge的framelayout填充，但是运行时的progrma有错误。为什么？如果我删除片段和交易片段，则程序运行良好。

public class ShowSlidingMenu extends FragmentActivity {
private DrawerLayout drawerLayout;
private ActionBarDrawerToggle actionBarDrawerToggle;
private ListView listView;
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
MapView mapView;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sliding);
    Fragment fragment=new MapFragmentTest();
    FragmentTransaction ft= getSupportFragmentManager().beginTransaction();
    ft.replace(R.id.mapView, fragment).commit();
    mTitle = mDrawerTitle = getTitle();
    navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
    navMenuIcons = getResources()
            .obtainTypedArray(R.array.nav_drawer_icons);
    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    listView = (ListView) findViewById(R.id.list_slidermenu);
    navDrawerItems = new ArrayList<NavDrawerItem>();
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons
            .getResourceId(0, -1)));
    // Find People
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons
            .getResourceId(1, -1)));
    // Photos
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons
            .getResourceId(2, -1)));
    // Communities, Will add a counter here
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons
            .getResourceId(3, -1)));
    // Pages
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons
            .getResourceId(4, -1)));
    // What's hot, We will add a counter here
    navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons
            .getResourceId(5, -1)));
    navMenuIcons.recycle();
    adapter = new NavDrawerListAdapter(getApplicationContext(),
            navDrawerItems);
    listView.setAdapter(adapter);
    // enabling action bar app icon and behaving it as toggle button
    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);
    actionBarDrawerToggle = new ActionBarDrawerToggle(
             this, drawerLayout, R.drawable.ic_drawer,
            R.string.app_name, R.string.app_name) {
        public void onDrawerClosed(View view) {
            getActionBar().setTitle(mTitle);
            // calling onPrepareOptionsMenu() to show action bar icons
            invalidateOptionsMenu();
        }
        public void onDrawerOpened(View drawerView) {
            getActionBar().setTitle(mDrawerTitle);
            // calling onPrepareOptionsMenu() to hide action bar icons
            invalidateOptionsMenu();
        }
    };
    drawerLayout.setDrawerListener(actionBarDrawerToggle);
    listView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            // TODO Auto-generated method stub
            displayView();
        }
    });
}
//remove onCreateOptionsMenu()
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    if(actionBarDrawerToggle.onOptionsItemSelected(item))
        return true;
    //remove action bar settings 
    return super.onOptionsItemSelected(item);
}
//remove onPrepareOptionsMenu()
@Override
public void setTitle(CharSequence title) {
    // TODO Auto-generated method stub
    mTitle=title;
    getActionBar().setTitle(mTitle);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    // Sync the toggle state after onRestoreInstanceState has occurred.
    actionBarDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    // Pass any configuration change to the drawer toggls
    actionBarDrawerToggle.onConfigurationChanged(newConfig);
}
public void displayView(){
    Toast.makeText(getApplicationContext(), "hahaha", Toast.LENGTH_LONG).show();
}
}

XML文件：

<?xml version="1.0" encoding="UTF-8"?>
 <android.support.v4.widget.DrawerLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
    android:id="@+id/mainView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFFFF" >

    <FrameLayout 
        android:id="@+id/mapView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"></FrameLayout>

</RelativeLayout>
<ListView
    android:id="@+id/list_slidermenu"
    android:layout_width="240dp"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:background="@color/list_background"
    android:choiceMode="singleChoice"
    android:divider="@color/list_divider"
    android:dividerHeight="1dp"
    android:listSelector="@drawable/list_selector" />
</android.support.v4.widget.DrawerLayout>

fragment_layout.xml：

<?xml version="1.0" encoding="utf-8"?>
<org.mapsforge.android.maps.MapView
  xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/mapView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

mapFragmentTest

public class MapFragmentTest extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_layout, container, false);
    return rootView;
}

}

日志：

01-27 09:08:48.185: E/AndroidRuntime(13176): FATAL EXCEPTION: main
01-27 09:08:48.185: E/AndroidRuntime(13176): java.lang.RuntimeException: Unable to start activity ComponentInfo {org.example.sendandreceivesms/org.example.slidingmenubar.ShowSlidingMenu}: android.view.InflateException: Binary XML file line #6: Error inflating class org.mapsforge.android.maps.MapView

Answer 1

您是否在subtest.xml文件中声明了所需的权限。

根据文档，您应该添加 -

The map library requires only one permission for writing cached images to the external storage (typically the phones SD card). Add the following line to your applications AndroidManifest.xml file:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

并使用以下代码显示映射 -

import android.os.Bundle;
import java.io.File;
import org.mapsforge.android.maps.MapActivity;
import org.mapsforge.android.maps.MapView;
public class HelloMapView extends MapActivity {
 @Override
 protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
    MapView mapView = new MapView(this);
    mapView.setClickable(true);
    mapView.setBuiltInZoomControls(true);
    mapView.setMapFile(new File("/sdcard/path/to/mapfile.map"));
    setContentView(mapView);
}
}

Answer 2

更改

<org.mapsforge.android.maps.MapView

to

<com.google.android.gms.maps.MapView

由于您在评论中提到您使用mapsforge库关注

http://code.google.com/p/mapsforge/wiki/gettingstartedmapview

Answer 3

我有类似的错误消息，我已经将其修复了以下内容：

• 添加所有JAR文件（包括mapsforge-core-0.5.0.jar，mapsforge-map-0.5.0.jar，mapsforge-map-android-0.5.0.jar，mapsforge-map-reader-0.5.0.jar），然后在Android Java构建路径配置（Project> Properties> Java构建路径> order Path> order and Export）中检查它
）
• 在地图之前将此行添加到类中，或将其添加到应用程序类AndroidGraphicFactory.createInstance(this.getApplication());中如果没有添加，它将根据他们的文档发生冲突

希望以上有帮助：）