【发布时间】：2014-07-24 06:27:45
【问题描述】：
我正在尝试使用 google maps api v2 获取纬度和经度。因此，首先将这些库添加到我的项目中 - appCompact_v7 和 google-play0service_lib 如下图链接所示（抱歉，由于声誉问题，无法发布图片）：
代码如下：
AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.testmapact2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<permission
android:name="com.example.testmapact2.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission
android:name="com.example.testmapact.permission.MAPS_RECEIVE" />
<!-- set other permissions -->
<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" />
<uses-permission
android:name="android.permission.ACCESS_FINE_LOCATION" />
<!-- Maps API version 2 requires OpenGL ES version 2 -->
<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=".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="AIzaSxAZYjSWRbcxyZkCf35Fi75cLxxxaVHeQbw" />
</application>
</manifest>
布局：
<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="${relativePackage}.${activityClass}" >
<TextView
android:id="@+id/TextLat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="68dp"
android:text="lat" />
<TextView
android:id="@+id/TextLong"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/TextLat"
android:layout_below="@+id/TextLat"
android:layout_marginTop="52dp"
android:text="lon" />
</RelativeLayout>
MainAcivity.java ：
public class MainActivity extends Activity
implements GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener
{
TextView txtLat, txtLong;
LocationClient locClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtLat = (TextView)findViewById(R.id.TextLat);
txtLong = (TextView)findViewById(R.id.TextLong);
locClient = new LocationClient(this, this, this);
gpsChk();
}
@Override
protected void onStart()
{ super.onStart();
locClient.connect(); }
@Override
protected void onStop()
{ locClient.disconnect();
super.onStop();}
@Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub }
@Override
public void onConnected(Bundle connectionHint) {
Location location = locClient.getLastLocation();
if(location!=null)
{
txtLat.setText(String.valueOf(location.getLatitude()));
txtLong.setText(String.valueOf(location.getLongitude()));
}
}
@Override
public void onDisconnected() {
// TODO Auto-generated method stub }
private void gpsChk()
{
// if GPS is not enabled, start GPS settings activity
LocationManager locationManager =
(LocationManager) getSystemService(LOCATION_SERVICE);
if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER))
{
Toast.makeText(this, "Please activate GPS settings",
Toast.LENGTH_LONG).show();
Intent intent =
new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
}
}
}
它没有显示运行时错误。 来自 logcat 的错误日志：
07-24 11:23:34.259: E/AndroidRuntime(4433): FATAL EXCEPTION: main
07-24 11:23:34.259: E/AndroidRuntime(4433): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.testmapact2/com.example.testmapact2.MainActivity}: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml does not have the right value. Expected 5077000 but found 0. 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" />
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2343)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2395)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread.access$600(ActivityThread.java:162)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.os.Handler.dispatchMessage(Handler.java:107)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.os.Looper.loop(Looper.java:194)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread.main(ActivityThread.java:5371)
07-24 11:23:34.259: E/AndroidRuntime(4433): at java.lang.reflect.Method.invokeNative(Native Method)
07-24 11:23:34.259: E/AndroidRuntime(4433): at java.lang.reflect.Method.invoke(Method.java:525)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
07-24 11:23:34.259: E/AndroidRuntime(4433): at dalvik.system.NativeStart.main(Native Method)
07-24 11:23:34.259: E/AndroidRuntime(4433): Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml does not have the right value. Expected 5077000 but found 0. 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" />
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.google.android.gms.common.GooglePlayServicesUtil.x(Unknown Source)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.google.android.gms.internal.hc.connect(Unknown Source)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.google.android.gms.location.LocationClient.connect(Unknown Source)
07-24 11:23:34.259: E/AndroidRuntime(4433): at com.example.testmapact2.MainActivity.onStart(MainActivity.java:42)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1170)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.Activity.performStart(Activity.java:5132)
07-24 11:23:34.259: E/AndroidRuntime(4433): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2316)
07-24 11:23:34.259: E/AndroidRuntime(4433): ... 11 more
我正在尝试在我的 android 手机上运行该应用程序，该手机正在运行谷歌地图并且 GPS 也已打开。但是仍然显示错误并且应用程序通过给出消息停止：不幸的是应用程序已停止。
请帮帮我。 :-)
【问题讨论】：
-
MapFragment在哪里？您没有显示地图。
标签： java android google-maps