不幸的是谷歌地圖已經停止

Question

我想建立使用谷歌地圖API第2版的應用程序，我遵循developers.android.com方向，但它仍然給我錯誤請幫我

這裏是main.java

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

import com.example.googlemap.R; 
import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.SupportMapFragment; 

public class MapActivity extends FragmentActivity{ 

SupportMapFragment mMap; 
GoogleMap googleMap; 

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

    mMap = (SupportMapFragment) getSupportFragmentManager() 
    .findFragmentById(R.id.map); 

    googleMap = mMap.getMap(); 
} 
} 

的Manifest.xml：

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

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

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

    <uses-sdk 
     android:minSdkVersion="8" 
     android:targetSdkVersion="18" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name="com.example.googlemap.MapActivity" 
      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="api_key"/>// i wrote it 
    </application> 

</manifest> 

activity_map.xml

<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=".MapActivity" > 

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

</RelativeLayout> 

最後我的logcat：

11-04 11:15:56.034: D/AndroidRuntime(868): Shutting down VM 
11-04 11:15:56.074: W/dalvikvm(868): threadid=1: thread exiting with uncaught exception (group=0x409c01f8) 
11-04 11:15:56.154: E/AndroidRuntime(868): FATAL EXCEPTION: main 
11-04 11:15:56.154: E/AndroidRuntime(868): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.googlemap/com.example.googlemap.MapActivity}: java.lang.ClassNotFoundException: com.example.googlemap.MapActivity 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1880) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread.access$600(ActivityThread.java:123) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.os.Handler.dispatchMessage(Handler.java:99) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.os.Looper.loop(Looper.java:137) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread.main(ActivityThread.java:4424) 
11-04 11:15:56.154: E/AndroidRuntime(868): at java.lang.reflect.Method.invokeNative(Native Method) 
11-04 11:15:56.154: E/AndroidRuntime(868): at java.lang.reflect.Method.invoke(Method.java:511) 
11-04 11:15:56.154: E/AndroidRuntime(868): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
11-04 11:15:56.154: E/AndroidRuntime(868): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
11-04 11:15:56.154: E/AndroidRuntime(868): at dalvik.system.NativeStart.main(Native Method) 
11-04 11:15:56.154: E/AndroidRuntime(868): Caused by: java.lang.ClassNotFoundException: com.example.googlemap.MapActivity 
11-04 11:15:56.154: E/AndroidRuntime(868):at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 
11-04 11:15:56.154: E/AndroidRuntime(868):at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 
11-04 11:15:56.154: E/AndroidRuntime(868):at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 
11-04 11:15:56.154: E/AndroidRuntime(868):at android.app.Instrumentation.newActivity(Instrumentation.java:1023) 
11-04 11:15:56.154: E/AndroidRuntime(868): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1871) 
11-04 11:15:56.154: E/AndroidRuntime(868): 11 more 
11-04 11:15:56.256: I/dalvikvm(868): threadid=3: reacting to signal 3 
11-04 11:15:56.484: I/dalvikvm(868): Wrote stack traces to '/data/anr/traces.txt' 
11-04 11:15:56.844: I/dalvikvm(868): threadid=3: reacting to signal 3 
11-04 11:15:56.854: I/dalvikvm(868): Wrote stack traces to '/data/anr/traces.txt' 
11-04 11:15:57.274: I/dalvikvm(868): threadid=3: reacting to signal 3 
11-04 11:15:57.324: I/dalvikvm(868): Wrote stack traces to '/data/anr/traces.txt' 

Answer 1

你在排隊setContentView(R.layout.activity_map);使用activity_map但你的XML名稱是activity_main所以，你所得到的錯誤。

使用setContentView(R.layout.activity_main);並解決您的問題。