android - Google Maps api v2 无法正常工作并意外关闭

Question

我几乎只是 android 的初学者。我试图用谷歌地图制作一个非常简单的应用程序，即只显示 map 。我点击了以下链接:

file:///C:/Android/Android%20Google%20Maps%20V2%20Tutorial.htm

但是当我在我的设备上测试它时，它说它已停止工作并关闭。

这是我的 Manifest.xml:

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

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission       android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<!-- Required to show current location -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />


<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.googleapi.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="AIzaSyA5BsIL-3rppsOxQOuX4gBZT3c0cTHNbWc" />

</application>

</manifest>

Acyivity 代码是:(我尝试扩展 FragementActivity 但也没有使用它。)

 package com.example.googleapi;

 import com.google.android.gms.maps.GoogleMap;
 import com.google.android.gms.maps.MapFragment;

 import android.os.Bundle;
 import android.app.Activity;
 import android.support.v4.app.FragmentActivity;
  import android.view.Menu;
  import android.widget.Toast;

public class MainActivity extends FragmentActivity {

// Google Map
private GoogleMap googleMap;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    try {
        // Loading map
        initilizeMap();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

/**
 * 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();

        // 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();
}

}

XML 代码是(其中的一部分):

    <fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

    </RelativeLayout>

我的日志是:

at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
        at android.os.Looper.loop(Looper.java:136)
        at android.app.ActivityThread.main(ActivityThread.java:5017)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
        Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class fragment
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
        at android.app.Activity.setContentView(Activity.java:1929)
        at com.example.googleapi.MainActivity.onCreate(MainActivity.java:20)
        at android.app.Activity.performCreate(Activity.java:5231)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)

        Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml 
        does not have the right value.  Expected 4030500 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" />

        at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source)
        at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
        at com.google.android.gms.maps.internal.q.v(Unknown Source)
        at com.google.android.gms.maps.internal.q.u(Unknown Source)
        at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
        at com.google.android.gms.maps.MapFragment$b.cE(Unknown Source)
        at com.google.android.gms.maps.MapFragment$b.a(Unknown Source)
        at com.google.android.gms.dynamic.a.a(Unknown Source)
        at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
        at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
        at android.app.Activity.onCreateView(Activity.java:4785)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)
        ... 21 more

我在谷歌上搜索了很多关于它的内容，并得到了一些直接的问题，但没有答案？？ .

好像很多人都有同样的问题。谁能帮忙解决这个问题。我想开发一个应用程序但无法继续，因为 Google mpas api 是它的主要部分。

Answer 1

您在 list 的应用程序标签中缺少元标签

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

您应该使用 SupportMapFragment 而不是 MapFragment。

改变

<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

到

<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

改变

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

到

googleMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(
            R.id.map)).getMap();