问题描述
我想在我的安卓设备上加载谷歌地图 API.我尝试了我搜索的所有内容，但它仍然崩溃.这是我的 MainActivity.java
package com.example.androidmapsv2;导入 android.os.Bundle;导入 android.support.v4.app.FragmentActivity;导入 com.google.android.gms.common.GooglePlayServicesUtil;导入 com.google.android.gms.maps.GoogleMap;导入 com.google.android.gms.maps.SupportMapFragment;公共类 MainActivity 扩展了 FragmentActivity {@覆盖protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//在操作栏中显示向上按钮.getActionBar().setDisplayHomeAsUpEnabled(true);GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());GoogleMap 地图 = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();}}这是我的布局activity_main.
这是我的清单
<申请机器人:allowBackup =真"android:icon="@drawable/ic_launcher"android:label="@string/app_name"android:theme="@style/AppTheme" ><uses-library android:name="com.google.android.maps"/><活动android:name="com.example.androidmapsv2.MainActivity"机器人:标签=aaa"><意图过滤器><action android:name="android.intent.action.MAIN"/><category android:name="android.intent.category.LAUNCHER"/></意图过滤器></活动><元数据android:name="com.google.android.maps.v2.API_KEY"android:value="AIzaSyDr9xN8L3sF6W2ZRWmTR7q0lhTeOWhXEfQ"/></应用程序></清单>
这是我得到的钥匙
这是包含的库(已在更新中解决)
而且我没有真正的安卓设备，所以我在这个教程
这是日志猫
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):无法解析 Lcom/example/androidmapsv2/MainActivity 的超类；(5)01-09 18:05:19.354:W/dalvikvm(1366):Lcom/example/androidmapsv2/MainActivity"类的链接；失败的01-09 18:05:19.365:D/AndroidRuntime(1366):关闭虚拟机01-09 18:05:19.365: W/dalvikvm(1366): threadid=1: 线程退出时出现未捕获的异常 (group=0x40a13300)01-09 18:05:19.384:E/AndroidRuntime(1366):致命异常:主要01-09 18:05:19.384:E/AndroidRuntime(1366):java.lang.RuntimeException:无法实例化活动组件信息{com.example.androidmapsv2/com.example.androidmapsv2.MainActivity}:java.lang.ClassNotFoundException:com.example.androidmapsv2.MainActivity01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread.access$600(ActivityThread.java:130)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.os.Handler.dispatchMessage(Handler.java:99)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.os.Looper.loop(Looper.java:137)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread.main(ActivityThread.java:4745)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 java.lang.reflect.Method.invokeNative(Native Method)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 java.lang.reflect.Method.invoke(Method.java:511)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 dalvik.system.NativeStart.main(Native Method)01-09 18:05:19.384: E/AndroidRuntime(1366): 引起: java.lang.ClassNotFoundException: com.example.androidmapsv2.MainActivity01-09 18:05:19.384: E/AndroidRuntime(1366): 在 dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 java.lang.ClassLoader.loadClass(ClassLoader.java:501)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 java.lang.ClassLoader.loadClass(ClassLoader.java:461)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.Instrumentation.newActivity(Instrumentation.java:1053)01-09 18:05:19.384: E/AndroidRuntime(1366): 在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)01-09 18:05:19.384: E/AndroidRuntime(1366): ... 11 更多
更新
我尝试将 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).如何修复它当我单击 google-play-services_lib.jar 时，删除按钮不显示(如图片).但是我尝试删除所有 Android 依赖项并再次导入其他库.现在它工作了，但仍然崩溃.
我试过改变
MainActivity 扩展 Activity
到
MainActivity 扩展了 FragmentActivity
和布局
它出现了另一个错误.帮帮我，现在我没有办法解决这个问题
最后，我解决了我的错误.它是由我的日食引起的(我猜).添加库类时，它会自动出现google-play-services_lib.jar"，您无需执行任何操作.我重新安装了 Eclipse，一切正常
解决方案 我第一次用 API V2 编写地图时也面临这种问题.
尝试使用带有 FragmentActivity 的扩展而不是 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中.在上图中它显示了红色的十字，因此选择它并删除它，然后再次添加附加库与项目.
I want to load the google map API on my android. I try everything I search but it still crash.this is my 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();
}
}
This is my layout activity_main.
<?
This is my manifest
<?
This is the key i've got
This is the libs included (Solved in update)
and i don't have a real android device, so i install it on emulator in this tutorial
This is the 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
UPDATED
i've tried to copy the google-play-services_lib to workspace and red mark disappearbut it come another error. It missing the google-play-services_lib.jar (the lib folder name + .jar). how to fix itwhen i click the google-play-services_lib.jar, the remove button doesn't show up(like picture). However i try remove all Android Dependencies and import the others lib again. now it working, but still crash.
I've tried change
MainActivity extends Activity
To
MainActivity extends FragmentActivity
and the layout
<?
it appear another error. help me, now i'm out of solution for this
Finally, i solved my error. It caused by my eclipse (i guess). When you add the library class, it automatically appear "google-play-services_lib.jar", you don't have to do anything. I reinstall Eclipse and everything work fine
解决方案 I also faces this kind of the problem,when first time coding for the map with API V2.
Just try using the extends with FragmentActivity instead of the Activity
you have to copy the project(goolge_play_services) into your workspace and then attach it to your project. In above image it show the cross red,so select it and remove and then after once again add attach the library with the project.
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