如何实施Google Maps新版API v2

时间:2012-12-17 10:27:45

标签: android google-maps android-emulator maps google-maps-mobile

大家好我知道谷歌地图已经弃用了之前的版本API v1并引入了新版本的google maps API v2。我通过跟踪谷歌中的一些链接尝试了一个例子,我非常确定我通过提供确切的哈希密钥代码并设法获得正确的api密钥正确地获得了api密钥。现在我设法写了一些代码,但当我试图执行代码我得到错误,请帮我解决这里是我的代码

我甚至尝试过谷歌播放服务提供的示例代码,我遇到了同样的问题

这是我通过引用谷歌中的一些链接所做的示例

主要活动类

package com.example.apv;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentManager;

public class MainActivity extends Activity 
{
     @Override  
     protected void onCreate(Bundle savedInstanceState) {  
         super.onCreate(savedInstanceState);  
         setContentView(R.layout.main);  

     FragmentManager fragmentManager = getFragmentManager();  
     MapFragment mapFragment = (MapFragment)fragmentManager.findFragmentById(R.id.map);  
     GoogleMap googleMap = mapFragment.getMap();  
     LatLng sfLatLng = new LatLng(37.7750, -122.4183);  
     googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);  
     googleMap.addMarker(new MarkerOptions().position(sfLatLng).title("San Francisco")
                .snippet("Population: 776733")
            .icon(BitmapDescriptorFactory.defaultMarker(
     BitmapDescriptorFactory.HUE_AZURE)));
     googleMap.getUiSettings().setCompassEnabled(true);  
     googleMap.getUiSettings().setZoomControlsEnabled(true);  
     googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(sfLatLng, 10))

        }  
}  

main.xml

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

最后是我的清单文件

                           <?xml version="1.0" encoding="utf-8"?>  
                 <manifest xmlns:android="http://schemas.android.com/apk/res/android"  
                               package="com.example.apv"  
                              android:versionCode="1"  
                               android:versionName="1.0" >  
                  <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17"/>  

                             <permission  
                     android:name="com.codebybrian.mapsample.permission.MAPS_RECEIVE"  
                                     android:protectionLevel="signature"/>  


                                     <!--Required permissions-->   

            permission oid:name="com.codebybrian.mapsample.permission.MAPS_RECEIVE"/>  

              <!--Used by the API to download map tiles from Google Maps servers: -->  
                 <uses-permission android:name="android.permission.INTERNET"/>  

                   <!--Allows the API to access Google web-based services: -->  
                <uses-permission   
         android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>  

          <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>  


                    <!--Optional permissions-->  
          <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>  
        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>  

        <!--Version 2 of the Google Maps Android API requires OpenGL ES version 2 -->  
                <uses-feature  
                        android:glEsVersion="0x00020000"    
                          android:required="true"/>  

     application android:label="@string/app_name" android:icon="@drawable/ic_launcher">

                 <activity android:name=".MyMapActivity"  
                         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="AZzaSSsBmhi4dXoKSylGGmjkQ5Jev9UdAJBjk"/>  
                            </application>  


                          </manifest>  

我在版本4.2的模拟器中运行我的应用程序,并且api级别为17,我得到了以下错误

12-17 10:06:52.590: E/Trace(826): error opening trace file: No such file or directory (2)  
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0  
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0  
12-17 10:06:52.590: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0  
12-17 10:06:52.680: I/ActivityThread(826): Pub   com.google.android.gms.plus;com.google.android.gms.plus.action:   com.google.android.gms.plus.provider.PlusProvider  
12-17 10:06:52.740: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0   
12-17 10:06:52.740: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0  
12-17 10:06:52.760: W/Trace(826): Unexpected value from nativeGetEnabledTags: 0 

后来我才知道这些版本无法在模拟器中执行所以我尝试用两个设备执行它一个是Android版本2.3.7的索尼xperia u和android版本4.1.1的三星galaxy选项卡,这些是我的输出< / p>

   12-17 16:24:48.965: I/dalvikvm(9088): Could not find method     com.example.apv.MainActivity.getFragmentManager, referenced from method com.example.apv.MainActivity.onCreate
  12-17 16:24:48.965: W/dalvikvm(9088): VFY: unable to resolve virtual method 3460:   Lcom/example/apv/MainActivity;.getFragmentManager ()Landroid/app/FragmentManager;
   12-17 16:24:48.965: D/dalvikvm(9088): VFY: replacing opcode 0x6e at 0x0009
   12-17 16:24:48.965: D/dalvikvm(9088): VFY: dead code 0x000c-0065 in Lcom/example /apv/MainActivity;.onCreate (Landroid/os/Bundle;)V
        12-17 16:24:49.066: D/AndroidRuntime(9088): Shutting down VM
    12-17 16:24:49.066: W/dalvikvm(9088): threadid=1: thread exiting with uncaught exception (group=0x4001d578)
      12-17 16:24:49.086: E/AndroidRuntime(9088): FATAL EXCEPTION: main
      12-17 16:24:49.086: E/AndroidRuntime(9088): java.lang.RuntimeException: Unable  to start activity ComponentInfo{com.example.apv/com.example.apv.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
         12-17 16:24:49.086: E/AndroidRuntime(9088):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1659)
              12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675)
           12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.app.ActivityThread.access$1500(ActivityThread.java:121)
           12-17 16:24:49.086: E/AndroidRuntime(9088):  at  android.app.ActivityThread$H.handleMessage(ActivityThread.java:943)
           12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.os.Handler.dispatchMessage(Handler.java:99)
           12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.os.Looper.loop(Looper.java:138)
          12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.app.ActivityThread.main(ActivityThread.java:3701)
          12-17 16:24:49.086: E/AndroidRuntime(9088):   at java.lang.reflect.Method.invokeNative(Native Method)
         12-17 16:24:49.086: E/AndroidRuntime(9088):    at java.lang.reflect.Method.invoke(Method.java:507)
            12-17 16:24:49.086: E/AndroidRuntime(9088):     at  com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
           12-17 16:24:49.086: E/AndroidRuntime(9088):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
             12-17 16:24:49.086: E/AndroidRuntime(9088):    at  dalvik.system.NativeStart.main(Native Method)
            12-17 16:24:49.086: E/AndroidRuntime(9088): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
             12-17 16:24:49.086: E/AndroidRuntime(9088):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)
              12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
              12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
               12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
                 12-17 16:24:49.086: E/AndroidRuntime(9088):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
               12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.app.Activity.setContentView(Activity.java:1657)
              12-17 16:24:49.086: E/AndroidRuntime(9088):   at com.example.apv.MainActivity.onCreate(MainActivity.java:20)
               12-17 16:24:49.086: E/AndroidRuntime(9088):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
                 12-17 16:24:49.086: E/AndroidRuntime(9088):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623)
                   12-17 16:24:49.086: E/AndroidRuntime(9088):  ... 11 more
             12-17 16:24:49.086: E/AndroidRuntime(9088): Caused by: java.lang.ClassNotFoundException: android.view.fragment in loader dalvik.system.PathClassLoader[/data/app/com.example.apv-1.apk]
              12-17 16:24:49.086: E/AndroidRuntime(9088):   at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
               12-17 16:24:49.086: E/AndroidRuntime(9088):  at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
                12-17 16:24:49.086: E/AndroidRuntime(9088):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                  12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.view.LayoutInflater.createView(LayoutInflater.java:471)
                  12-17 16:24:49.086: E/AndroidRuntime(9088):   at android.view.LayoutInflater.onCreateView(LayoutInflater.java:549)
                 12-17 16:24:49.086: E/AndroidRuntime(9088):    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
                12-17 16:24:49.086: E/AndroidRuntime(9088):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
                   12-17 16:24:49.086: E/AndroidRuntime(9088):  ... 19 more

任何人都可以建议我如何完成这项工作,并给我一些谷歌地图新版API v2教程的链接和一些示例链接,请帮助我

6 个答案:

答案 0 :(得分:1)

按照本指南在类似帖子上找到可能会有所帮助,您需要安装2个.apk文件。 资料来源:http://nemanjakovacevic.net/blog/2012/12/how-to-make-android-google-maps-v2-work-in-android-emulator/

答案 1 :(得分:0)

请确保在清单中声明主要活动时命名:

Caused by: java.lang.ClassNotFoundException: com.example.apv.MyMapActivity

可能是包命名问题?发布您的整个MyMapActivity,而不仅仅是onCreate。

答案 2 :(得分:0)

项目属性 - &gt; Android - &gt;在库下添加...并根据这些说明选择您之前添加为库项目的google-play-services_lib:

https://developers.google.com/maps/documentation/android/intro

答案 3 :(得分:0)

您提供的代码包含错误。您的活动名称是MainActivity,但在清单文件中,您声明的唯一活动名称为MyMapActivity。此外,您的清单文件没有打开的应用程序标记。

纠正这两个错误,我运行了你的代码并得到了你提到的异常。我通过添加google-play-services库项目解决了这个问题。我想你忘记添加这个或它没有正确添加。您可以在google map v2的开发者文档中找到相关详细信息。

要检查此项,请右键单击您的项目并转到属性。然后从左侧选择Android。在本页底部,您将找到库项目表。确保google-play-services库项目在列表中并带有绿色标记。如果不存在,请单击右侧的“添加...”按钮添加它。

有时,eclipse无法添加不在项目的同一工作空间中的库项目。如果是这种情况,请将google-play-services和您的项目保留在同一个工作区中,然后重试。

答案 4 :(得分:0)

查看此youtube教程视频。它适用于初学者,可以帮助您从头开始创建一个简单的Google Maps V2应用 youtube link。至于在eclipse模拟器上运行Google Maps V2 ,请参阅此答案Running Google Maps v2 on emulator

答案 5 :(得分:-5)

如果您想使用片段,那么您的活动即MainActivity应扩展 FragmentActivity