“错误膨胀类片段"用谷歌地图 [英] "Error inflating class fragment" with google map
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问题描述
我尝试使用 Google 地图制作示例项目，但我做不到.请帮帮我！
I tried to make a sample project using Google Map, but I couldn't. Help me please!
测试设备:Android 4.0.4
Test Device : Android 4.0.4
错误信息:
12-29 23:45:32.605: E/AndroidRuntime(9437): FATAL EXCEPTION: main
12-29 23:45:32.605: E/AndroidRuntime(9437):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.example.test_googlemap/com.example.test_googlemap.MainActivity}:
android.view.InflateException: Binary XML file line #2: Error
inflating class fragment 12-29 23:45:32.605: E/AndroidRuntime(9437):
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1968)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1993)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.app.ActivityThread.access$600(ActivityThread.java:127) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.os.Handler.dispatchMessage(Handler.java:99) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.os.Looper.loop(Looper.java:137) 12-29 23:45:32.605:
E/AndroidRuntime(9437): at
android.app.ActivityThread.main(ActivityThread.java:4507) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
java.lang.reflect.Method.invokeNative(Native Method) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
java.lang.reflect.Method.invoke(Method.java:511) 12-29 23:45:32.605:
E/AndroidRuntime(9437): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
dalvik.system.NativeStart.main(Native Method) 12-29 23:45:32.605:
E/AndroidRuntime(9437): Caused by: android.view.InflateException:
Binary XML file line #2: Error inflating class fragment 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.view.LayoutInflater.inflate(LayoutInflater.java:466) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.view.LayoutInflater.inflate(LayoutInflater.java:396) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.view.LayoutInflater.inflate(LayoutInflater.java:352) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:271)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.app.Activity.setContentView(Activity.java:1835) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
com.example.test_googlemap.MainActivity.onCreate(MainActivity.java:11)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.app.Activity.performCreate(Activity.java:4465) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1932)
12-29 23:45:32.605: E/AndroidRuntime(9437): ... 11 more 12-29
23:45:32.605: E/AndroidRuntime(9437): Caused by:
java.lang.ClassCastException: com.google.android.gms.maps.MapFragment
cannot be cast to android.support.v4.app.Fragment 12-29 23:45:32.605:
E/AndroidRuntime(9437): at
android.support.v4.app.Fragment.instantiate(Fragment.java:394) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.support.v4.app.Fragment.instantiate(Fragment.java:369) 12-29
23:45:32.605: E/AndroidRuntime(9437): at
android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-29 23:45:32.605: E/AndroidRuntime(9437): at
android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:669)
12-29 23:45:32.605: E/AndroidRuntime(9437): ... 20 more
源代码:
Source Code :
package com.example.test_googlemap;
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);
}
}
活动_main.xml:
activity_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"/>
清单.xml :
Manifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test_googlemap"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="3"
android:targetSdkVersion="15" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test_googlemap.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="I removed it!"/>
</application>
<permission
android:name="com.example.Test_GoogleMap.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.Test_GoogleMap.permission.MAPS_RECEIVE"/>
<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-feature
android:glEsVersion="0x00020000"
android:required="true"/>
</manifest>
推荐答案
您正在扩展 FragmentActivity，表明您正在尝试使用 Fragment 的 Android Support 包 backport.但是，您的 <fragment> 元素指的是 MapFragment，它用于原生 API 级别 11 版本的片段.
You are extending FragmentActivity, indicating that you are trying to use the Android Support package backport of fragments. However, your <fragment> element refers to MapFragment, which is for the native API Level 11 edition of fragments.
将 MapFragment 替换为 SupportMapFragment，这应该可以解决这个特定的崩溃问题.
Replace MapFragment with SupportMapFragment, and that should clear up this specific crash.
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