android: Binary XML file line #9: error inflating class fragment

Question

我试图在 android 应用程序中显示地图。我正在使用地图 V2。但是会抛出错误“Binary XML file line #9: error inflating class fragment”。应用在启动时崩溃。

下面是我的代码。请帮我解决这个问题

MainActivity.Java

    package com.example.googlemapsv2;
    import android.os.Bundle;
    import android.support.v4.app.FragmentActivity;

    public class MainActivity extends FragmentActivity {

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

activity_main.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:map="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

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

Android 清单

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.googlemapsv2"
android:versionCode="1"
android:versionName="1.0" >
 <permission
    android:name="com.example.googlemapsv2.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-permission android:name="com.example.googlemapsv2.permission.MAPS_RECEIVE" />
<uses-sdk
    android:minSdkVersion="12"
    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" />
<!-- Required OpenGL ES 2.0. for Maps V2 -->
<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="com.example.googlemapsv2.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>
</application>
<meta-data
 android:name="com.google.android.maps.v2.API_KEY"
 android:value="AIzaSyBAvQK4RAin10dqyflr95tH45Ce_Eko3G0" />
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</manifest>

Answer 1

我遇到了同样的问题，我通过添加官方文档中指定的权限解决了它（Google map doc on 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"/>

Answer 2

根据我以前的经验，API 18/19 必须添加清单 -> 应用程序元数据 Q 更新随版本更新：

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

Answer 3

以下必须在清单文件的application标签内

参考

https://developers.google.com/maps/documentation/android/start#add_the_google_play_services_version_to_your_apps_manifest

<meta-data
 android:name="com.google.android.maps.v2.API_KEY"
 android:value="AIzaSyBAvQK4RAin10dqyflr95tH45Ce_Eko3G0" />
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />

因为你的 minsdk 是 12。你需要使用 MapFragment 并且你的类应该扩展 Activity。

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

然后

public class MainActivity extends Activity

确保您正确引用了库项目并在 google api 控制台中为 android 启用了地图。

Answer 4

试试 SupportMapFragment activity_main.xml

将 android:name 更改为简单类

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

MainActivity.java

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
            initializeMap();

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

    }

    /**
     * function to load map. If map is not created it will create it for you
     * */
    private void initializeMap() {
        if (googleMap == null) {
            googleMap = ((SupportMapFragment) getSupportFragmentManager().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();
    }
}

更改 SDK 版本

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

Raghunandan 是对的，你应该在<application>. 内写<meta>tag 代码