我不了解此代码的问题。看起来正确，但不起作用。应用程序在运行时就停止工作。请帮忙。
我尝试调试该应用程序，但没有运气。我想做的是打开此应用程序以将其固定到LatLng指定的地图上的特定位置。
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMapOptions;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngCreator;
import android.location.Location;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends Activity implements
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener, LocationListener{
private GoogleMap mMap;
public android.location.Location mCurrentLocation;
GoogleMapOptions options = new GoogleMapOptions();
double latitude, longitude;
public LocationClient mLocationClient;
public LocationRequest mLocationRequest;
static final LatLng PES = new LatLng(12.9338249,77.5332331);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final GoogleMap mMap;
Log.i("LL", "done 0");
mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))
.getMap();
Log.i("LL", "done1");
MapSetUp();
Log.i("LL", "donethis2");
mMap.animateCamera(CameraUpdateFactory.newLatLng(PES));
Log.i("LL", "donetgis3");
}
public void MapSetUp(){
if (mMap == null) {
mMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
}
if (mMap != null) {
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.getUiSettings().setMyLocationButtonEnabled(true);
mMap.getUiSettings().setCompassEnabled(true);
mMap.getUiSettings().setRotateGesturesEnabled(true);
mMap.getUiSettings().setZoomGesturesEnabled(true);
}
}
@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 onLocationChanged(Location location) {
// TODO Auto-generated method stub
String msg = "Updated Location: "
+ Double.toString(location.getLatitude()) + ","
+ Double.toString(location.getLongitude());
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
@Override
public void onConnectionFailed(ConnectionResult arg0) {
// TODO Auto-generated method stub
}
@Override
public void onConnected(Bundle arg0) {
// TODO Auto-generated method stub
Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show();
}
@Override
public void onDisconnected() {
// TODO Auto-generated method stub
Toast.makeText(this, "Not Connected", Toast.LENGTH_SHORT).show();
}
}
Logcat
03-23 17:37:19.505: W/dalvikvm(7265): threadid=1: thread exiting with uncaught exception (group=0x416a4d40)
03-23 17:37:19.510: E/AndroidRuntime(7265): FATAL EXCEPTION: main
03-23 17:37:19.510: E/AndroidRuntime(7265): Process: com.pes.nikhil, PID: 7265
03-23 17:37:19.510: E/AndroidRuntime(7265): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pes.nikhil/com.pes.nikhil.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread.access$800(ActivityThread.java:139)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.os.Handler.dispatchMessage(Handler.java:102)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.os.Looper.loop(Looper.java:136)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread.main(ActivityThread.java:5102)
03-23 17:37:19.510: E/AndroidRuntime(7265): at java.lang.reflect.Method.invokeNative(Native Method)
03-23 17:37:19.510: E/AndroidRuntime(7265): at java.lang.reflect.Method.invoke(Method.java:515)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
03-23 17:37:19.510: E/AndroidRuntime(7265): at dalvik.system.NativeStart.main(Native Method)
03-23 17:37:19.510: E/AndroidRuntime(7265): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.Activity.setContentView(Activity.java:1937)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.pes.nikhil.MainActivity.onCreate(MainActivity.java:38)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.Activity.performCreate(Activity.java:5248)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2173)
03-23 17:37:19.510: E/AndroidRuntime(7265): ... 11 more
03-23 17:37:19.510: E/AndroidRuntime(7265): Caused by: java.lang.IllegalStateException: A required meta-data tag in your app's AndroidManifest.xml does not exist. You must have the following declaration within the <application> element: <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.internal.q.v(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.internal.q.u(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.MapFragment$b.eb(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.MapFragment$b.a(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.dynamic.a.a(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.app.Activity.onCreateView(Activity.java:4802)
03-23 17:37:19.510: E/AndroidRuntime(7265): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
03-23 17:37:19.510: E/AndroidRuntime(7265): ... 20 more
它告诉您堆栈跟踪中有什么问题：
A required meta-data tag in your app's AndroidManifest.xml does not exist. You must have the following declaration within the <application> element: <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
您需要在清单文件中添加指定的标签。
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