我正在尝试在Android应用程序上设置谷歌地图。 我看到了很多关于这个错误的问题,但没有人真正回答我的问题
我的错误文件
03-15 22:32:56.235: D/AndroidRuntime(6713): Shutting down VM
03-15 22:32:56.235: W/dalvikvm(6713): threadid=1: thread exiting with uncaught exception (group=0x415b22a0)
03-15 22:32:56.235: E/AndroidRuntime(6713): FATAL EXCEPTION: main
03-15 22:32:56.235: E/AndroidRuntime(6713): java.lang.RuntimeException: Unable to start activity ComponentInfo{ant.project.myway/ant.project.myway.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread.access$600(ActivityThread.java:140)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.os.Handler.dispatchMessage(Handler.java:99)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.os.Looper.loop(Looper.java:137)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread.main(ActivityThread.java:4895)
03-15 22:32:56.235: E/AndroidRuntime(6713): at java.lang.reflect.Method.invokeNative(Native Method)
03-15 22:32:56.235: E/AndroidRuntime(6713): at java.lang.reflect.Method.invoke(Method.java:511)
03-15 22:32:56.235: E/AndroidRuntime(6713): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
03-15 22:32:56.235: E/AndroidRuntime(6713): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
03-15 22:32:56.235: E/AndroidRuntime(6713): at dalvik.system.NativeStart.main(Native Method)
03-15 22:32:56.235: E/AndroidRuntime(6713): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
03-15 22:32:56.235: E/AndroidRuntime(6713): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:306)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.Activity.setContentView(Activity.java:1912)
03-15 22:32:56.235: E/AndroidRuntime(6713): at ant.project.myway.MainActivity.onCreate(MainActivity.java:11)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.Activity.performCreate(Activity.java:5163)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
03-15 22:32:56.235: E/AndroidRuntime(6713): ... 11 more
03-15 22:32:56.235: E/AndroidRuntime(6713): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SupportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.support.v4.app.Fragment.instantiate(Fragment.java:401)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
03-15 22:32:56.235: E/AndroidRuntime(6713): ... 21 more
03-15 22:32:56.235: E/AndroidRuntime(6713): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SupportMapFragment
03-15 22:32:56.235: E/AndroidRuntime(6713): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
03-15 22:32:56.235: E/AndroidRuntime(6713): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
03-15 22:32:56.235: E/AndroidRuntime(6713): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
03-15 22:32:56.235: E/AndroidRuntime(6713): at android.support.v4.app.Fragment.instantiate(Fragment.java:391)
03-15 22:32:56.235: E/AndroidRuntime(6713): ... 24 more
03-15 22:36:00.345: I/Process(6713): Sending signal. PID: 6713 SIG: 9
所以这是我的清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="ant.project.myway"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<permission
android:name="ant.project.myway.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<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"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- The following two permissions are not required to use
Google Maps Android API v2, but are recommended. -->
<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="ant.project.myway.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="@string/api_key"/>
</application>
</manifest>
我的活动
package ant.project.myway;
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);
}
}
布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent" />
</RelativeLayout>
我看了很多帖子来解决这个问题,
我不确定我的api密钥是否正确,我在ubuntu上。 我去〜/ .android,我跑
keytool -list -alias androiddebugkey -keystore debug.keystore -storepass android -keypass android
我拿到了我的钥匙,我在google console api key上设置了my_key; ant.project.myway
我认为这是正确的方法
感谢您的帮助
答案 0 :(得分:3)
您遇到的问题与您的密钥无关,来自您的logcat输出:
引起:android.support.v4.app.Fragment $ InstantiationException:无法实例化片段com.google.android.gms.maps.SupportMapFragment:确保类名存在,是公共的,并且有一个空的构造函数,公共
基本上意味着在您的布局被实例化的那一刻,找不到SupportMapFragment
类。是什么让我觉得你引用google-play-services
库的方式有问题。
您可以查看我的blog post如何在您的应用中添加Google地图以查找更多信息。
答案 1 :(得分:1)
如果您在“ant.project.myway”packeage naem的帮助下生成密钥,那么您应该在权限标记中仅使用此包名称。
请试试这个......
<permission
android:name="ant.project.myway.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
还使用android:name而不是class属性
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent" />
还在清单中添加此权限
<uses-permission android:name="ant.project.myway.permission.MAPS_RECEIVE" />
答案 2 :(得分:1)
在您的活动中添加此内容:
GoogleMap map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();