Question

我添加了行googleMap.setMyLocationEnabled(true); 在我的代码中。

当我从手机启动应用程序时，会显示地图和用户的位置，一切正常。

然而，当我从计算机启动它时，我收到一个错误：

08-28 11:19:01.524: W/dalvikvm(30617): VFY: unable to resolve static field 20875 (t) in Lyo; 08-28 11:19:01.524: D/dalvikvm(30617): VFY: replacing opcode 0x62 at 0x000e 08-28 11:19:01.529: W/dalvikvm(30617): VFY: unable to resolve static field 20875 (t) in Lyo; 08-28 11:19:01.529: D/dalvikvm(30617): VFY: replacing opcode 0x62 at 0x000d 08-28 11:19:02.129: I/dalvikvm(30617): Failed resolving Lcom/google/android/gms/location/internal/ParcelableGeofence; interface 4023 'Lglm;' 08-28 11:19:02.129: W/dalvikvm(30617): Link of class 'Lcom/google/android/gms/location/internal/ParcelableGeofence;' failed 08-28 11:19:02.129: E/dalvikvm(30617): Could not find class 'com.google.android.gms.location.internal.ParcelableGeofence', referenced from method gls.a 08-28 11:19:02.134: W/dalvikvm(30617): VFY: unable to resolve check-cast 2086 (Lcom/google/android/gms/location/internal/ParcelableGeofence;) in Lgls;

似乎没有找到Class ParcelableGeofence。为什么？

在这两种情况下都会向Google API发出请求。所以API密钥没问题。

如果我从代码中删除googleMap.setMyLocationEnabled(true);，一切正常。

编辑：

我的完整代码

公共类MapActivity扩展了FragmentActivity {

private GoogleMap googleMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.xml.map_layout);

    // Loading map
      initilizeMap();   
}

/**
 * function to load map. If map is not created it will create it for you
 * */
private void initilizeMap() {
    if (googleMap == null) {
        googleMap = ((MapFragment) getFragmentManager().findFragmentById(
                R.id.map)).getMap();
        googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

        googleMap.setMyLocationEnabled(true);

        // check if map is created successfully or not
        if (googleMap == null) {
            Toast.makeText(getApplicationContext(),
                    "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                    .show();
        }
    }
}

@Override
protected void onResume() {
    super.onResume();
    initilizeMap();
}}

我的XML文件

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <fragment android:id="@+id/map" android:name="com.google.android.gms.maps.MapFragment" android:layout_width="match_parent" android:layout_height="match_parent"/></RelativeLayout>

我的清单文件的一部分

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />
<uses-feature
    android:glEsVersion="0x00020000"
    android:required="true"/>

    <permission android:name="packageName.permission.MAPS_RECEIVE" android:protectionLevel="signature" />

<uses-permission android:name="android.permission.VIBRATE"/>
<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="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="packagename.permission.MAPS_RECEIVE" />

<uses-permission android:name="com.google.android.providers.gsf.permisson.READ_GSERVICES"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-feature android:name="android.hardware.location" android:required="true" />
<uses-feature android:name="android.hardware.location.gps" android:required="true" />

<compatible-screens>
    <!-- all small size screens -->
    <screen android:screenSize="small" android:screenDensity="ldpi" />
    <screen android:screenSize="small" android:screenDensity="mdpi" />
    <screen android:screenSize="small" android:screenDensity="hdpi" />
    <screen android:screenSize="small" android:screenDensity="xhdpi" />
    <!-- all normal size screens -->
    <screen android:screenSize="normal" android:screenDensity="ldpi" />
    <screen android:screenSize="normal" android:screenDensity="mdpi" />
    <screen android:screenSize="normal" android:screenDensity="hdpi" />
    <screen android:screenSize="normal" android:screenDensity="xhdpi" />
</compatible-screens>


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



<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="xxxxxxxxx"/>
</application>

Answer 1

试试这个：

    googleMap = ((MapFragment) getFragmentManager()
            .findFragmentById(R.id.map)).getMap();

    googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

    googleMap.setMyLocationEnabled(true);

如果这不起作用，请发布您的代码，清单，布局xml

Answer 2

只是在黑暗中拍摄，但是只有在地图加载后才启用位置图层会发生什么？像这样：

googleMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
    @Override
    public void onMapLoaded() {
        googleMap.setMyLocationEnabled(true);
    }
});

地图是否正确加载然后崩溃？

Answer 3

问题是计算机没有GPS或任何其他方式来跟踪位置

googleMap.setMyLocationEnabled仅在从手机启动时才有效

3 个答案: