Google Maps API v2 - Erreur du fragment

Question

Je sais que cette question a peut-être été posée plusieurs fois, mais croyez-moi, j'ai essayé toutes les possibilités et cela ne fonctionne pas. Je serai aussi bref que possible.

.java

package com.example.aa_lbs; 

import java.util.Calendar; 

import android.app.Activity; 
import android.content.Context; 
import android.location.Criteria; 
import android.location.Location; 
import android.location.LocationListener; 
import android.location.LocationManager; 
import android.os.Bundle; 
import android.support.v4.app.FragmentActivity; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.SupportMapFragment; 
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.MapFragment; 

/** 
* Demonstrate the use of GPS within Android. Google Maps is optional for this 
* application, but is useful in visualizing the output. Google Maps does not 
* run in the AVD. 
* 
* @author Alex Tushinsky (alext@ltmod.com) 
* @version 1.0 
*/ 
public class LBSActivity extends Activity implements LocationListener { 

    private LocationManager oLoc; 
    private Location currentLoc; 
    private Location previousLoc; 

    private double totalDistance = 0; 
    private long eventStartTime = 0; 

    TextView txtOutput = null; 

    private GoogleMap oMap; 
    Marker oMark = null; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_lbs); 

     // Criteria object is optional. Will return value representing "GPS" 
     Criteria oGPSSettings = new Criteria(); 
     oGPSSettings.setAccuracy(Criteria.ACCURACY_FINE); 
     oGPSSettings.setSpeedRequired(true); 
     oGPSSettings.setAltitudeRequired(true); 
     oGPSSettings.setBearingRequired(false); 
     oGPSSettings.setCostAllowed(false); 
     oGPSSettings.setPowerRequirement(Criteria.POWER_MEDIUM); 

     txtOutput = (TextView) findViewById(R.id.txtOutput); 

     oLoc = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 

     String provider = oLoc.getBestProvider(oGPSSettings, true); 

     if (provider != null) { 
      oLoc.requestLocationUpdates(provider, 1000, 1, this); 
      // or use LocationManager.GPS_PROVIDER instead of provider variable 
     } else { 
      Toast.makeText(getBaseContext(), "No GPS", Toast.LENGTH_SHORT) 
        .show(); 
      finish(); 
     } 

     eventStartTime = getRawTime(); 
    } 

    @Override 
    public void onLocationChanged(Location location) { 
     currentLoc = location; 
     long currentTime = getRawTime(); 
     if (previousLoc != null) { 
      // Calculates the distance between the last location and the 
      // current. 
      double dis = getDistance(previousLoc, currentLoc); 
      // Adds the distance to the previous total. 
      totalDistance += dis; // in KM 
      long totalTimeDiff = (currentTime - eventStartTime)/1000L; 
      double CurrentMetersPerSecond = location.getSpeed(); 
      double kps = totalTimeDiff/totalDistance; // km per second 
      // 1 kilometer per second = 3600 kilometers per hour or kps/60 
      // minutes/60 seconds 
      double kPH = 1/((kps/60)/60); 

      String sText = "Distance: " 
        + String.format("%.2f", Double.valueOf(totalDistance)) 
        + " km\n" + "Speed: " 
        + String.format("%.2f", (CurrentMetersPerSecond * 3.6)) 
        + " kph\n" + "Avg Speed: " + String.format("%.2f", (kPH)) 
        + " kph\n" + "Lon: " + currentLoc.getLongitude() + "\n" 
        + "Lat: " + currentLoc.getLatitude() + "\n" + "Alt: " 
        + currentLoc.getAltitude(); 

      txtOutput.setText(sText); 

     } 

     // sets this location as last location. 
     previousLoc = currentLoc; 

     LatLng oPos = new LatLng(currentLoc.getLatitude(), 
       currentLoc.getLongitude()); 

     oMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)) 
       .getMap(); 
     if (oMap != null) { 
      oMap.clear(); // otherwise old markers remain 

      oMark = oMap.addMarker(new MarkerOptions().position(oPos).title(
        "My Location")); 

      oMap.moveCamera(CameraUpdateFactory.newLatLngZoom(oPos, 17)); 
     } 

    } 

    @Override 
    public void onProviderDisabled(String provider) { 
     oLoc.removeUpdates(this); 
     Toast.makeText(getBaseContext(), provider + " is disabled.", 
       Toast.LENGTH_SHORT).show(); 
    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     oLoc.removeUpdates(this); 
     oLoc.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, this); 
     Toast.makeText(getBaseContext(), provider + " is enabled.", 
       Toast.LENGTH_SHORT).show(); 

    } 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     oLoc.removeUpdates(this); 
     oLoc.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, this); 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
     oLoc.removeUpdates(this); 
     oLoc.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, this); 

    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     oLoc.removeUpdates(this); 
    } 

    /** 
    * 
    * Returns the current date/time in milliseconds since epoch. 
    */ 
    public static long getRawTime() { 
     Calendar dt = Calendar.getInstance(); 
     return dt.getTimeInMillis(); 
    } 

    /** 
    * getDistance is used to return the distance in kilometers between two 
    * location points. 
    */ 
    public static double getDistance(Location PreviousLocation, 
      Location CurrentLocation) { // in KM 

     double lat1 = PreviousLocation.getLatitude(); 
     double lon1 = PreviousLocation.getLongitude(); 
     double lat2 = CurrentLocation.getLatitude(); 
     double lon2 = CurrentLocation.getLongitude(); 

     double latA = Math.toRadians(lat1); 
     double lonA = Math.toRadians(lon1); 
     double latB = Math.toRadians(lat2); 
     double lonB = Math.toRadians(lon2); 

     double cosAng = (Math.cos(latA) * Math.cos(latB) * Math 
       .cos(lonB - lonA)) + (Math.sin(latA) * Math.sin(latB)); 
     double ang = Math.acos(cosAng); 
     double dist = ang * 6371; // earth's radius! 
     return dist; 
    } 

} 

.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 

    <LinearLayout 
     android:id="@+id/linearLayout1" 
     android:layout_width="fill_parent" 
     android:layout_height="105dp" 
     android:orientation="horizontal" > 

     <TextView 
      android:id="@+id/txtOutput" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:textAppearance="?android:attr/textAppearanceSmall" /> 
    </LinearLayout> 

    <fragment 
     android:id="@+id/map" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     class="com.google.android.gms.maps.MapFragment" /> 

</LinearLayout> 

Manifest

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.aa_lbs" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="15" 
     android:targetSdkVersion="17" /> 

    <permission 
     android:name="com.example.aa_lbs.permission.MAPS_RECEIVE" 
     android:protectionLevel="signature" /> 

    <uses-permission android:name="com.example.aa_lbs.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_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.aa_lbs.LBSActivity" 
      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="AIzaSyDR3gdB6hail53aWqO9CCaU1Mz3L3719_Y" /> 

    </application> 

</manifest> 

Mon Virtual Machine

L'erreur:

04-18 11:04:20.217: E/AndroidRuntime(1242): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.aa_lbs/com.example.aa_lbs.LBSActivity}: android.view.InflateException: Binary XML file line #20: Error inflating class fragment 

Mon accident d'application quand il commence. Je sais que le problème est avec les fragments, mais je ne le trouve pas! S'IL VOUS PLAÎT! Aide-moi, j'abandonne ... J'apprécierais pour toujours.

Merci beaucoup.

Answer 1

Ajouter ce qui suit,

< meta-data android:name="com.google.android.gms.version" 
     android:value="@integer/google_play_services_version" > 
< /meta-data> 

dans votre fichier manifeste immédiatement sous la première balise méta-données (où vous avez placé votre clé google api)