我已经开始创建一个使用Google Map Api V2的演示应用,我按照Google指南http://developer.android.com/google/play-services/maps.html& http://www.truiton.com/2013/05/android-mapfragment-example/
正在加载地图活动,但未加载实际的Google地图,并显示错误消息:
06-18 10:19:23.717:I / Google Maps Android API(29990):无法联系Google服务器。建立连接时将进行另一次尝试。
06-18 10:19:38.903:E / Google Maps Android API(29990):无法加载地图。联系Google服务器时出错这可能是一个身份验证问题(但可能是由于网络错误)。
错误是由于我在 3G / Edge 这个慢于比4G或Wifi 的事实引起的,反过来可能导致连接到超时???
以下是我的活动:
package com.example.theappdallas;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
public class MapViewActivity extends FragmentActivity {
private GoogleMap map = null;
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map_view);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map1)).getMap();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.map_view, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}//end class
以下是我的布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<fragment
android:id="@+id/map1"
android:layout_width="match_parent"
android:layout_height="400dp"
class="com.google.android.gms.maps.MapFragment" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:src="@drawable/map_view_directions" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:src="@drawable/map_view_pin" />
<ImageView
android:id="@+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:src="@drawable/map_view_search" />
</LinearLayout>
</LinearLayout>
以下是我的清单(我已设置所有权限并提供了新的API密钥):
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.theappdallas"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<!-- permissions -->
<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-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<permission android:name="com.example.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="android.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<!-- SplashScreen -->
<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.gms.version"
android:value="4452000" />
<activity
android:name="com.example.theappdallas.SplashScreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- API key -->
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="*************************" />
<!-- MainMenuActivity -->
<activity
android:name="com.example.theappdallas.MainMenuActivity"
android:label="@string/title_activity_main_menu"
android:screenOrientation="portrait" >
</activity>
<!-- MapViewActivity -->
<activity
android:name="com.example.theappdallas.MapViewActivity"
android:label="@string/title_activity_map_view" >
</activity>
</application>
</manifest>
MapViewActivity的屏幕截图:
由于
答案 0 :(得分:1)
我怀疑由于连接超时,地图没有显示;问题很可能是API密钥。 I would follow these instructions closely to make sure you are generating the API key correctly.如果您对此过程有任何具体问题,请与我们联系。此外,您应该从发布的代码中删除您的API密钥。