我正在编写一个应用程序，其中我使用Google Maps Android API v2和mapviewballoons库，所以我在我的 android 项目中使用了两个库：
> android mapviewballoons
> google-play-services_lib
我已经获得了 SHA1 指纹并且还创建了一个 Android App Map Key，Android 应用程序的密钥（带有证书）
但是每当我运行我的应用程序时，我都会收到不幸的应用程序已停止
Error:
java.lang.NoClassDefFoundError: com.era.restaurant.versionoct.map.LocationActivity
日志猫：
04-24 10:52:51.592: D/dalvikvm(1053): GC_FOR_ALLOC freed 53K, 7% free 2421K/2600K, paused 35ms, total 38ms
04-24 10:52:51.592: I/dalvikvm-heap(1053): Grow heap (frag case) to 3.069MB for 614416-byte allocation
04-24 10:52:51.651: D/dalvikvm(1053): GC_FOR_ALLOC freed <1K, 6% free 3020K/3204K, paused 48ms, total 48ms
04-24 10:52:51.691: D/dalvikvm(1053): GC_CONCURRENT freed <1K, 6% free 3020K/3204K, paused 5ms+10ms, total 48ms
04-24 10:52:51.861: D/gralloc_goldfish(1053): Emulator without GPU emulation detected.
04-24 10:52:54.811: W/dalvikvm(1053): Unable to resolve superclass of Lcom/era/restaurant/versionoct/map/LocationActivity; (973)
04-24 10:52:54.811: W/dalvikvm(1053): Link of class 'Lcom/era/restaurant/versionoct/map/LocationActivity;' failed
04-24 10:52:54.811: E/dalvikvm(1053): Could not find class 'com.era.restaurant.versionoct.map.LocationActivity', referenced from method com.era.restaurant.versionoct.TabsActivity.setTabs
04-24 10:52:54.811: W/dalvikvm(1053): VFY: unable to resolve const-class 546 (Lcom/era/restaurant/versionoct/map/LocationActivity;) in Lcom/era/restaurant/versionoct/TabsActivity;
04-24 10:52:54.811: D/dalvikvm(1053): VFY: replacing opcode 0x1c at 0x0019
04-24 10:52:55.631: D/dalvikvm(1053): GC_FOR_ALLOC freed 67K, 6% free 3206K/3404K, paused 101ms, total 136ms
04-24 10:52:55.661: I/dalvikvm-heap(1053): Grow heap (frag case) to 3.856MB for 635812-byte allocation
04-24 10:52:55.762: D/dalvikvm(1053): GC_CONCURRENT freed 8K, 6% free 3819K/4028K, paused 5ms+5ms, total 107ms
04-24 10:52:56.091: D/AndroidRuntime(1053): Shutting down VM
04-24 10:52:56.111: W/dalvikvm(1053): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
04-24 10:52:56.191: E/AndroidRuntime(1053): FATAL EXCEPTION: main
04-24 10:52:56.191: E/AndroidRuntime(1053): java.lang.NoClassDefFoundError: com.era.restaurant.versionoct.map.LocationActivity
04-24 10:52:56.191: E/AndroidRuntime(1053): at com.era.restaurant.versionoct.TabsActivity.setTabs(TabsActivity.java:35)
04-24 10:52:56.191: E/AndroidRuntime(1053): at com.era.restaurant.versionoct.TabsActivity.onCreate(TabsActivity.java:26)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.Activity.performCreate(Activity.java:5104)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.ActivityThread.access$600(ActivityThread.java:141)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.os.Handler.dispatchMessage(Handler.java:99)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.os.Looper.loop(Looper.java:137)
04-24 10:52:56.191: E/AndroidRuntime(1053): at android.app.ActivityThread.main(ActivityThread.java:5041)
04-24 10:52:56.191: E/AndroidRuntime(1053): at java.lang.reflect.Method.invokeNative(Native Method)
04-24 10:52:56.191: E/AndroidRuntime(1053): at java.lang.reflect.Method.invoke(Method.java:511)
04-24 10:52:56.191: E/AndroidRuntime(1053): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-24 10:52:56.191: E/AndroidRuntime(1053): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-24 10:52:56.191: E/AndroidRuntime(1053): at dalvik.system.NativeStart.main(Native Method)
活动位置.xml：
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<include
android:id="@+id/header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
layout="@layout/header_location"
/>
<com.readystatesoftware.maps.TapControlledMapView
android:id="@+id/viewmap"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_below="@+id/rg_views"
android:clickable="true" />
<RadioGroup
android:id="@+id/rg_views"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/header"
android:background="@color/tabMedium"
android:gravity="center_horizontal"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/rb_satellite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/header"
android:layout_marginRight="16dp"
android:text="@string/str_rb_satellite" />
<RadioButton
android:id="@+id/rb_normal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="@+id/viewmap"
android:layout_marginLeft="14dp"
android:checked="true"
android:text="@string/str_rb_normal" />
</RadioGroup>
</RelativeLayout>
AndroidManifest.xml（仅显示与地图相关的内容）::
<uses-permission
android:name="com.era.restaurant.versionoct.maps.permission.MAPS_RECEIVE"
>
</uses-permission>
<permission
android:name="com.era.restaurant.versionoct.maps.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission
android:name="com.google.android.providers.gsf.permission.READ_GSERVICES">
</uses-permission>
<uses-feature
android:glEsVersion="0x00020000" android:required="true">
</uses-feature>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
android:allowBackup="false">
<activity
android:name="com.era.restaurant.versionoct.map.LocationActivity"
android:label="@string/app_name">
</activity>
<meta-data
android:name="com.era.restaurant.versionoct.map.v2.API_KEY"
android:value="myAPIkey"/>
位置活动.java：
public class LocationActivity extends MapActivity {
public GeoPoint point;
TapControlledMapView mapView=null; // use the custom TapControlledMapView
List<Overlay> mapOverlays;
Drawable drawable;
SimpleItemizedOverlay itemizedOverlay;
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_location);
mapView = (TapControlledMapView) findViewById(R.id.viewmap);
mapView.setBuiltInZoomControls(true);
mapView.setSatellite(false);
// Getting reference to rg_views of the layout activity_main
RadioGroup rgViews = (RadioGroup) findViewById(R.id.rg_views);
// Defining Checked Change Listener for the RadioGroup
OnCheckedChangeListener checkedChangeListener = new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// Getting Reference to map_view of the layout activity_main
// Currently checked is rb_map
if(checkedId==R.id.rb_normal){
mapView.setSatellite(false);
}
// Currently checked is rb_satellite
if(checkedId==R.id.rb_satellite){
mapView.setSatellite(true);
}
}
};
// Setting Checked ChangeListener
rgViews.setOnCheckedChangeListener(checkedChangeListener);
// dismiss balloon upon single tap of MapView (iOS behavior)
mapView.setOnSingleTapListener(new OnSingleTapListener() {
public boolean onSingleTap(MotionEvent e) {
itemizedOverlay.hideAllBalloons();
return true;
}
});
mapOverlays = mapView.getOverlays();
drawable = getResources().getDrawable(R.drawable.map_button);
itemizedOverlay = new SimpleItemizedOverlay(drawable, mapView);
itemizedOverlay.setShowClose(false);
itemizedOverlay.setShowDisclosure(true);
itemizedOverlay.setSnapToCenter(true);
new DownloadWebPageTask().execute();
}
class DownloadWebPageTask extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... urls) {
HttpClient client = new DefaultHttpClient();
// Perform a GET request for a JSON list
HttpUriRequest request = new HttpGet("http://XXXX.xxx/locations.json");
// Get the response that sends back
HttpResponse response = null;
try {
response = client.execute(request);
} catch (ClientProtocolException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// Convert this response into a readable string
String jsonString = null;
try {
jsonString = StreamUtils.convertToString(response.getEntity().getContent());
} catch (IllegalStateException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// Create a JSON object that we can use from the String
JSONObject json = null;
try {
json = new JSONObject(jsonString);
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try{
JSONArray jsonArray = json.getJSONArray("maps");
Log.e("log_tag", "Opening JSON Array ");
for(int i=0;i < jsonArray.length();i++){
JSONObject jsonObject = jsonArray.getJSONObject(i);
String latitude = jsonObject.getString("latitude");
String longitude = jsonObject.getString("longitude");
String title = jsonObject.getString("title");
String country = jsonObject.getString("location");
double lat = Double.parseDouble(latitude);
double lng = Double.parseDouble(longitude);
Log.e("log_tag", "ADDING GEOPOINT"+title);
point = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));
OverlayItem overlayItem = new OverlayItem(point, title, country);
itemizedOverlay.addOverlay(overlayItem);
}
}catch(JSONException e) {
Log.e("log_tag", "Error parsing data "+e.toString());
}
return jsonString;
}
@SuppressWarnings("unused")
@Override
protected void onPostExecute(String result) {
itemizedOverlay.populateNow();
mapOverlays.add(itemizedOverlay);
Object savedInstanceState = null;
}
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
SimpleItemizedOverlay.java：
public class SimpleItemizedOverlay extends BalloonItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> m_overlays = new ArrayList<OverlayItem>();
public SimpleItemizedOverlay(Drawable defaultMarker, MapView mapView) {
super(boundCenter(defaultMarker), mapView);
mapView.getContext();
}
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow)
{
if(!shadow)
{
super.draw(canvas, mapView, false);
}
}
public void addOverlay(OverlayItem overlay) {
m_overlays.add(overlay);
}
public void populateNow()
{
populate();
}
@Override
protected OverlayItem createItem(int i) {
return m_overlays.get(i);
}
@Override
public int size() {
return m_overlays.size();
}