我试过好几次解决这个问题，然后按照指南进行处理 HTTPS：// developers.google.com/maps/documentation/android/start
但我无法解决这个问题，任何人都知道这个错误请帮助我
这是活动＆gt;
package com.example.lifecycle;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.support.v4.app.FragmentActivity;
public class MainActivity extends android.support.v4.app.FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
这是Xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world" />
<fragment
android:id="@+id/fragment1"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment"
android:name="com.testing.svma.MainActivity" />
</RelativeLayout>
- 这是显而易见的 -
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.lifecycle"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="17" />
<permission
android:name="com.example.lifecycle.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.lifecycle.permission.MAPS_RECEIVE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- The following two permissions are not required to use
Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="xxxxxxxxxxxxxxxxx" />
<activity
android:name="com.example.lifecycle.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I also reference my app to google-play-services_lib in eclipse.
but everytime, error report in logcat like this:
06-06 08:46:06.513: E/Trace(1136): error opening trace file: No such file or directory (2)
06-06 08:46:07.411: E/AndroidRuntime(1136): FATAL EXCEPTION: main
06-06 08:46:07.411: E/AndroidRuntime(1136): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.lifecycle/com.example.lifecycle.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.lifecycle.MainActivity" on path: /data/app/com.example.lifecycle-2.apk
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread.access$600(ActivityThread.java:141)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.os.Handler.dispatchMessage(Handler.java:99)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.os.Looper.loop(Looper.java:137)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread.main(ActivityThread.java:5041)
06-06 08:46:07.411: E/AndroidRuntime(1136): at java.lang.reflect.Method.invokeNative(Native Method)
06-06 08:46:07.411: E/AndroidRuntime(1136): at java.lang.reflect.Method.invoke(Method.java:511)
06-06 08:46:07.411: E/AndroidRuntime(1136): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-06 08:46:07.411: E/AndroidRuntime(1136): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-06 08:46:07.411: E/AndroidRuntime(1136): at dalvik.system.NativeStart.main(Native Method)
06-06 08:46:07.411: E/AndroidRuntime(1136): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.lifecycle.MainActivity" on path: /data/app/com.example.lifecycle-2.apk
06-06 08:46:07.411: E/AndroidRuntime(1136): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
06-06 08:46:07.411: E/AndroidRuntime(1136): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
06-06 08:46:07.411: E/AndroidRuntime(1136): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
06-06 08:46:07.411: E/AndroidRuntime(1136): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
06-06 08:46:07.411: E/AndroidRuntime(1136): ... 11 more
谢谢 -
答案 0 :(得分：2)
Google Map V2不支持模拟器进行测试。你需要一个设备来测试它。你在设备上测试了吗？
这是我的工作代码尝试： 清单文件：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.lastgmap"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<permission
android:name="com.example.lastgmap.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.lastgmap.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" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.lastgmap.MainActivity"
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.maps.v2.API_KEY"
android:value="Your Api Key" />
</application>
</manifest>
我的xml文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/locinfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<fragment
android:name="com.google.android.gms.maps.SupportMapFragment"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
JAVA文件（MainActivity）：
package com.example.lastgmap;
import android.graphics.Color;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.view.Menu;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.GoogleMap.OnMapLongClickListener;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.Polyline;
import com.google.android.gms.maps.model.PolylineOptions;
public class MainActivity extends FragmentActivity implements
OnMapClickListener, OnMapLongClickListener, OnInfoWindowClickListener {
final int RQS_GooglePlayServices = 1;
GoogleMap myMap;
TextView tvLocInfo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tvLocInfo = (TextView) findViewById(R.id.locinfo);
FragmentManager myFragmentManager = getSupportFragmentManager();
SupportMapFragment mySupportMapFragment = (SupportMapFragment) myFragmentManager
.findFragmentById(R.id.map);
myMap = mySupportMapFragment.getMap();
myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
myMap.setMyLocationEnabled(true);
// myMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
myMap.setOnMapClickListener(this);
myMap.setOnMapLongClickListener(this);
myMap.setOnInfoWindowClickListener(this);
LatLng latlan = new LatLng(17.901126806011973, 74.66820292174816);
myMap.addMarker(new MarkerOptions().position(latlan).title("suraj"));
myMap.setMyLocationEnabled(true);
setUpMap();
Polyline line = myMap.addPolyline(new PolylineOptions()
.add(new LatLng(18.81319, 73.96298), new LatLng(18.95285, 73.85734))
.width(25)
.color(Color.BLUE)
.geodesic(true));
LatLng p=new LatLng(18.95285, 73.85734);
myMap.animateCamera(CameraUpdateFactory.newLatLng(p));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onMapClick(LatLng point) {
// TODO Auto-generated method stub
tvLocInfo.setText(point.toString());
myMap.animateCamera(CameraUpdateFactory.newLatLng(point));
}
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(getApplicationContext());
if (resultCode == ConnectionResult.SUCCESS) {
Toast.makeText(getApplicationContext(),
"isGooglePlayServicesAvailable SUCCESS", Toast.LENGTH_LONG)
.show();
} else {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
RQS_GooglePlayServices);
}
}
@Override
public void onMapLongClick(LatLng point) {
// TODO Auto-generated method stub
tvLocInfo.setText("new marker added @" + point.toString());
// myMap.addMarker(new
// MarkerOptions().position(point).title(point.toString()));
// Marker melbourne = mMap.addMarker(new MarkerOptions()
// .position(MELBOURNE)
// .title("Melbourne")
// .snippet("Population: 4,137,400")
// .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));
Marker m = myMap.addMarker(new MarkerOptions().position(point)
.title("Custome").snippet("Population:1321231")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker)));
}
private void setUpMap() {
// Enable MyLocation Layer of Google Map
myMap.setMyLocationEnabled(true);
// Get LocationManager object from System Service LOCATION_SERVICE
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Create a criteria object to retrieve provider
Criteria criteria = new Criteria();
// Get the name of the best provider
String provider = locationManager.getBestProvider(criteria, true);
// Get Current Location
Location myLocation = locationManager.getLastKnownLocation(provider);
// set map type
myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
// Get latitude of the current location
double latitude = myLocation.getLatitude();
// Get longitude of the current location
double longitude = myLocation.getLongitude();
// Create a LatLng object for the current location
LatLng latLng = new LatLng(latitude, longitude);
// Show the current location in Google Map
myMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
myMap.animateCamera(CameraUpdateFactory.zoomTo(20));
myMap.addMarker(new MarkerOptions().position(
new LatLng(latitude, longitude)).title("You are here!"));
}
@Override
public void onInfoWindowClick(Marker marker) {
// TODO Auto-generated method stub
marker.showInfoWindow();
}
}