谷歌地图android API V2崩溃了

Question

我想在我的android上加载谷歌地图API.我尝试了我搜索的所有东西,但它仍然崩溃.这是我的MainActivity.java

package com.example.androidmapsv2;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;

public class MainActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Show the Up button in the action bar.
        getActionBar().setDisplayHomeAsUpEnabled(true);
        GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

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

    }

}

这是我的布局activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.SupportMapFragment"/>
</RelativeLayout>

这是我的表现

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.androidmapsv2"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="16" />

    <permission
        android:name="com.example.androidmapsv2.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" >
    </permission>

    <uses-permission android:name="com.example.androidmapsv2.permission.MAPS_RECEIVE" />
    <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" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <!-- Require OpenGL ES version 2 -->
    <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" >
        <uses-library android:name="com.google.android.maps" />

        <activity
            android:name="com.example.androidmapsv2.MainActivity"
            android:label="aaa" >
            <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="AIzaSyDr9xN8L3sF6W2ZRWmTR7q0lhTeOWhXEfQ" />
    </application>

</manifest>

这是我的关键

这是包含的库(更新中已解决)

我没有真正的Android设备,所以我在本教程中将其安装在模拟器上

这是logcat

   01-09 18:05:19.184: E/Trace(1366): error opening trace file: No such file or directory (2)
01-09 18:05:19.354: W/dalvikvm(1366): Unable to resolve superclass of Lcom/example/androidmapsv2/MainActivity; (5)
01-09 18:05:19.354: W/dalvikvm(1366): Link of class 'Lcom/example/androidmapsv2/MainActivity;' failed
01-09 18:05:19.365: D/AndroidRuntime(1366): Shutting down VM
01-09 18:05:19.365: W/dalvikvm(1366): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
01-09 18:05:19.384: E/AndroidRuntime(1366): FATAL EXCEPTION: main
01-09 18:05:19.384: E/AndroidRuntime(1366): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.androidmapsv2/com.example.androidmapsv2.MainActivity}: java.lang.ClassNotFoundException: com.example.androidmapsv2.MainActivity
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread.access$600(ActivityThread.java:130)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.os.Looper.loop(Looper.java:137)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread.main(ActivityThread.java:4745)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at java.lang.reflect.Method.invokeNative(Native Method)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at java.lang.reflect.Method.invoke(Method.java:511)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at dalvik.system.NativeStart.main(Native Method)
01-09 18:05:19.384: E/AndroidRuntime(1366): Caused by: java.lang.ClassNotFoundException: com.example.androidmapsv2.MainActivity
01-09 18:05:19.384: E/AndroidRuntime(1366):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
01-09 18:05:19.384: E/AndroidRuntime(1366):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
01-09 18:05:19.384: E/AndroidRuntime(1366):     ... 11 more

更新

我试图将google-play-services_lib复制到工作区,红色标记消失 但它又出现了另一个错误.它缺少google-play-services_lib.jar(lib文件夹名称+ .jar).如何解决它 当我点击google-play-services_lib.jar时,删除按钮不会显示(如图片).但是,我尝试删除所有Android依赖项并再次导入其他lib.现在它工作,但仍然崩溃.

我试过改变

MainActivity extends Activity

至

MainActivity extends FragmentActivity

和布局

<?xml version="1.0" encoding="utf-8"?>
<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:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.SupportMapFragment"/>
</RelativeLayout>

它出现了另一个错误.帮助我,现在我已经没有解决方案了

最后,我解决了我的错误.它是由我的日食造成的(我猜).当您添加库类时,它会自动显示为"google-play-services_lib.jar",您无需执行任何操作.我重新安装Eclipse,一切正常

Answer 1

当我第一次使用 API V2 编码地图时，我也遇到了这种问题。

只需尝试使用 extends withFragmentActivity而不是Activity

您必须将项目（goolge_play_services）复制到您的工作区，然后将其附加到您的项目。在上图中，它显示十字红色，因此选择它并删除，然后再次添加后将库附加到项目中。