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我正在使用Google Maps API V2進行映射。我按照步驟here。我的應用程序項目中對Google Play服務prjoject的引用也被設置。從MapFragment派生的片段類的java.lang.NoClassDefFoundError
這是我的Acitivty課程。
public class MapActivity extends Activity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in {@link #restoreActionBar()}.
*/
private CharSequence mTitle;
private MainMapFragment mMapFragment;
private GoogleMap mMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
int resultcode =
GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
if (resultcode == ConnectionResult.SUCCESS)
{
Log.d("Test", "success");
}
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
@Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
FragmentManager fragmentManager = getFragmentManager();
if (position == 0) {
mMapFragment = MainMapFragment.newInstance(position + 1);
fragmentManager.beginTransaction()
.replace(R.id.container, mMapFragment)
.commit();
}
if (position == 1)
{
WebFragment webFragment = WebFragment.newInstance(position + 1);
fragmentManager.beginTransaction()
.replace(R.id.container, webFragment)
.commit();
}
else
{
fragmentManager.beginTransaction()
.replace(R.id.container, PlaceholderFragment.newInstance(position + 1))
.commit();
}
}
public static class MainMapFragment extends MapFragment{
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static MainMapFragment newInstance(int sectionNumber) {
MainMapFragment fragment = new MainMapFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public MainMapFragment() {
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
public static class WebFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static WebFragment newInstance(int sectionNumber) {
WebFragment fragment = new WebFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public WebFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
WebView webview = new WebView(getActivity());
webview.loadUrl("http://www.something.com/");
return webview;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_something, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
@Override![enter image description here][1]
public void onAttach(Activity activity) {
super.onAttach(activity);
((MyActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
截圖我的應用程序的項目屬性： 
的AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="19" />
<permission
android:name="com.example.app.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="com.example.app.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.app.MapActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="MY_API_KEY" />
</application>
</manifest>
當我在我的設備上運行我的應用程序崩潰。請填寫下面的logcat消息。
12-03 08:58:30.259: D/dalvikvm(17745): Late-enabling CheckJNI
12-03 08:58:30.377: W/ActivityThread(17745): Application com.example.app is waiting for the debugger on port 8100...
12-03 08:58:30.379: I/System.out(17745): Sending WAIT chunk
12-03 08:58:30.446: I/dalvikvm(17745): Debugger is active
12-03 08:58:30.590: I/System.out(17745): Debugger has connected
12-03 08:58:30.590: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:30.790: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:30.990: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:31.191: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:31.414: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:31.614: I/System.out(17745): waiting for debugger to settle...
12-03 08:58:31.815: I/System.out(17745): debugger has settled (1364)
12-03 08:58:31.843: I/dalvikvm(17745): Could not find method
com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable, referenced
from method com.example.app.MapActivity.onCreate
12-03 08:58:31.843: W/dalvikvm(17745): VFY: unable to resolve static method
5180:Lcom/google/android/gms/common/GooglePlayServicesUtil;.isGooglePlayServicesAvailable
(Landroid/content/Context;)I
12-03 08:58:31.843: D/dalvikvm(17745): VFY: replacing opcode 0x71 at 0x0021
12-03 08:58:31.845: W/dalvikvm(17745): Unable to resolve superclass of
Lcom/example/app/MapActivity$MainMapFragment; (790)
12-03 08:58:31.845: W/dalvikvm(17745): Link of class
'Lcom/example/app/MapActivity$MainMapFragment;' failed
12-03 08:58:31.846: I/dalvikvm(17745): Could not find method
com.example.app.MapActivity$MainMapFragment.newInstance, referenced from method
com.example.app.MapActivity.onNavigationDrawerItemSelected
12-03 08:58:31.846: W/dalvikvm(17745): VFY: unable to resolve static method 5090:
Lcom/example/app/MapActivity$MainMapFragment;.newInstance (I)
Lcom/example/app/MapActivity$MainMapFragment;
12-03 08:58:31.846: D/dalvikvm(17745): VFY: replacing opcode 0x71 at 0x000b
12-03 08:58:32.042: D/AndroidRuntime(17745): Shutting down VM
12-03 08:58:32.042: W/dalvikvm(17745): threadid=1: thread exiting with uncaught exception
(group=0x4186bd40)
12-03 08:58:32.070: E/AndroidRuntime(17745): FATAL EXCEPTION: main
12-03 08:58:32.070: E/AndroidRuntime(17745): Process: com.example.app, PID: 17745
12-03 08:58:32.070: E/AndroidRuntime(17745): java.lang.NoClassDefFoundError:
com.example.app.MapActivity$MainMapFragment
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.example.app.MapActivity.onNavigationDrawerItemSelected(MapActivity.java:73)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.example.app.NavigationDrawerFragment.selectItem(NavigationDrawerFragment.java:200)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.example.app.NavigationDrawerFragment.onCreate(NavigationDrawerFragment.java:79)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.Fragment.performCreate(Fragment.java:1678)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.FragmentManagerImpl.moveToState(FragmentManager.java:859)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1040)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1142)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.Activity.onCreateView(Activity.java:4803)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.view.LayoutInflater.inflate(LayoutInflater.java:492)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.view.LayoutInflater.inflate(LayoutInflater.java:397)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.view.LayoutInflater.inflate(LayoutInflater.java:353)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.Activity.setContentView(Activity.java:1937)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.example.app.MapActivity.onCreate(MapActivity.java:49)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.Activity.performCreate(Activity.java:5248)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2162)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.ActivityThread.access$800(ActivityThread.java:139)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.os.Handler.dispatchMessage(Handler.java:102)
12-03 08:58:32.070: E/AndroidRuntime(17745): at android.os.Looper.loop(Looper.java:136)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
android.app.ActivityThread.main(ActivityThread.java:5086)
12-03 08:58:32.070: E/AndroidRuntime(17745): at java.lang.reflect.Method.invokeNative(Native
Method)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
java.lang.reflect.Method.invoke(Method.java:515)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
12-03 08:58:32.070: E/AndroidRuntime(17745): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
12-03 08:58:32.070: E/AndroidRuntime(17745): at dalvik.system.NativeStart.main(Native Method)
我在這個問題上掙扎了一個星期。我真的不知道什麼是錯誤的。請幫我解決這個問題。非常感謝您的幫助。
你的設備測試？ – 2014-12-03 04:35:05
您必須僅在設備中測試MAPS，因爲仿真器不支持此功能... – 2014-12-03 04:37:44
是的。我只在設備上進行測試。當我在設備上運行時，該應用崩潰。 – Keerthi 2014-12-03 04:41:58