安卓地理位置谷歌地图在启动时崩溃

Question

>我在应用程序下方发布了我的代码，在调试菜单中显示没有错误，当我运行它时，logcat显示一个错误，我在下面发布了它。当我尝试在手机上运行该应用程序时，它会关闭并停止响应，我不确定为什么。我正在遵循一个在线教程，并完全按照它所说的去做。请帮忙。

10-07 14:50:02.901: I/Process(11653): Sending signal. PID: 11653 SIG: 9
10-07 14:50:06.124: W/dalvikvm(11801): VFY: unable to resolve static field 1346 (MapAttrs) in Lcom/google/android/gms/R$styleable;
10-07 14:50:06.124: D/dalvikvm(11801): VFY: replacing opcode 0x62 at 0x000e
10-07 14:50:06.134: D/AndroidRuntime(11801): Shutting down VM
10-07 14:50:06.134: W/dalvikvm(11801): threadid=1: thread exiting with uncaught exception (group=0x4129bac8)
10-07 14:50:06.134: E/AndroidRuntime(11801): FATAL EXCEPTION: main
10-07 14:50:06.134: E/AndroidRuntime(11801): java.lang.NoClassDefFoundError: com.google.android.gms.R$styleable
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.google.android.gms.maps.GoogleMapOptions.createFromAttributes(Unknown Source)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.google.android.gms.maps.SupportMapFragment.onInflate(Unknown Source)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:284)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:682)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:327)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.Activity.setContentView(Activity.java:1928)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.example.gloc.MainActivity.onCreate(MainActivity.java:30)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.Activity.performCreate(Activity.java:5250)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2297)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.ActivityThread.access$700(ActivityThread.java:152)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.os.Handler.dispatchMessage(Handler.java:99)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.os.Looper.loop(Looper.java:137)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at android.app.ActivityThread.main(ActivityThread.java:5328)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at java.lang.reflect.Method.invokeNative(Native Method)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at java.lang.reflect.Method.invoke(Method.java:511)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
10-07 14:50:06.134: E/AndroidRuntime(11801):    at dalvik.system.NativeStart.main(Native Method)
MainActivity.java

package com.example.gloc;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
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.view.Menu;
import android.widget.TextView;
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.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;

public class MainActivity extends FragmentActivity implements LocationListener {
    GoogleMap googleMap;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Getting Google Play availability status
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
        // Showing status
        if(status!=ConnectionResult.SUCCESS){ // Google Play Services are not available
            int requestCode = 10;
            //Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
            //dialog.show();
        }else { // Google Play Services are available
            // Getting reference to the SupportMapFragment of activity_main.xml
            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
            // Getting GoogleMap object from the fragment
            googleMap = fm.getMap();
            // Enabling MyLocation Layer of Google Map
            googleMap.setMyLocationEnabled(true);
            // Getting LocationManager object from System Service LOCATION_SERVICE
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
            // Creating a criteria object to retrieve provider
            Criteria criteria = new Criteria();
            // Getting the name of the best provider
            String provider = locationManager.getBestProvider(criteria, true);
            // Getting Current Location
            Location location = locationManager.getLastKnownLocation(provider);
            if(location!=null){
                onLocationChanged(location);
            }
            locationManager.requestLocationUpdates(provider, 20000, 0, this);
        }
    }
    @Override
    public void onLocationChanged(Location location) {
        TextView tvLocation = (TextView) findViewById(R.id.tv_location);
        // Getting latitude of the current location
        double latitude = location.getLatitude();
        // Getting longitude of the current location
        double longitude = location.getLongitude();
        // Creating a LatLng object for the current location
        LatLng latLng = new LatLng(latitude, longitude);
        // Showing the current location in Google Map
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        // Zoom in the Google Map
        googleMap.animateCamera(CameraUpdateFactory.zoomTo(15));
        // Setting latitude and longitude in the TextView tv_location
        tvLocation.setText("Latitude:" +  latitude  + ", Longitude:"+ longitude );
    }
    @Override
    public void onProviderDisabled(String provider) {
        // TODO Auto-generated method stub
    }
    @Override
    public void onProviderEnabled(String provider) {
        // TODO Auto-generated method stub
    }
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        // TODO Auto-generated method stub
    }
    @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;
    }
}
Layout
<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:id="@+id/tv_location"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <fragment xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/tv_location"
        class="com.google.android.gms.maps.SupportMapFragment" />
</RelativeLayout>
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gloc"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk
        android:minSdkVersion="12"
        android:targetSdkVersion="18" />
 <permission
        android:name="in.wptrafficanalyzer.locationingooglemapv2.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
    <uses-permission android:name="in.wptrafficanalyzer.locationingooglemapv2.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" >
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
             android:value="IEARASEDTHSITOHIDEIT"/>
        <activity
            android:name="com.example.gloc.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>
</manifest>

Answer 1

您无法更改 onCreate 中的映射选项，因为它尚未实例化。 尝试在OnResume（）而不是onCreate（）中执行OnLocationChanged中的所有操作，以执行GoogleMap对象。