Google Maps API v2 for Android“不幸的是，[app]已停止。”

Question

我刚开始学习Android。在我的一天中，我尝试在Android上使用Google Map，但每次我在模拟器上运行它时，都会发出“不幸，已停止”的通知。 这里是我的代码： 1.清单：

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

    <uses-sdk 
     android:minSdkVersion="17" 
     android:targetSdkVersion="17" /> 

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

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

    <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" > 
     <activity 
      android:name="com.example.mapmapmap.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="AIzaSyCSOXImKxtdCbhph6WAW6QammSm7rDa9lA" /> 
    </application> 
</manifest> 

activity_main.xml中：

<?xml version="1.0" encoding="utf-8"?> 
<fragment xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/map" 
android:name="com.google.android.gms.maps.MapFragment" 
android:layout_width="match_parent" 
android:layout_height="match_parent" /> 

MainActivity.java：

package com.example.mapmapmap; 
import android.os.Bundle; 
import android.app.Activity; 

public class MainActivity extends Activity { 

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

的logcat：

04-26 09:32:54.001: E/Trace(2210): error opening trace file: No such file or directory (2) 
04-26 09:32:55.111: D/AndroidRuntime(2210): Shutting down VM 
04-26 09:32:55.111: W/dalvikvm(2210): threadid=1: thread exiting with uncaught exception (group=0x40a71930) 
04-26 09:32:55.141: E/AndroidRuntime(2210): FATAL EXCEPTION: main 
04-26 09:32:55.141: E/AndroidRuntime(2210): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mapmapmap/com.example.mapmapmap.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread.access$600(ActivityThread.java:141) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.os.Looper.loop(Looper.java:137) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread.main(ActivityThread.java:5041) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at java.lang.reflect.Method.invoke(Method.java:511) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at dalvik.system.NativeStart.main(Native Method) 
04-26 09:32:55.141: E/AndroidRuntime(2210): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.view.LayoutInflater.inflate(LayoutInflater.java:466) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Activity.setContentView(Activity.java:1881) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at com.example.mapmapmap.MainActivity.onCreate(MainActivity.java:11) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Activity.performCreate(Activity.java:5104) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  ... 11 more 
04-26 09:32:55.141: E/AndroidRuntime(2210): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Fragment.instantiate(Fragment.java:592) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Fragment.instantiate(Fragment.java:560) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Activity.onCreateView(Activity.java:4709) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  ... 20 more 
04-26 09:32:55.141: E/AndroidRuntime(2210): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.maps.MapFragment" on path: /data/app/com.example.mapmapmap-1.apk 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  at android.app.Fragment.instantiate(Fragment.java:582) 
04-26 09:32:55.141: E/AndroidRuntime(2210):  ... 23 more 

我非常感谢任何帮助！

Answer 1

您的错误表明您手动修改了项目的构建路径以引用JAR。这将是两个错误：

1. 绝对不要手动修改一个标准的Android应用项目的构建路径

2. 的播放服务SDK是一个Android库项目，而不仅仅是一个JAR

有关将Play Services SDK附加到项目的说明，请参阅the Play Services SDK documentation。

Answer 2

Try This code will work succesfully 


<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:orientation="vertical" > 

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

</LinearLayout> 
package com.towntour.android; 

import android.content.Intent; 
import android.location.Location; 
import android.location.LocationListener; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.ImageButton; 
import android.widget.TextView; 

import com.google.android.gms.maps.GoogleMap; 
import com.google.android.gms.maps.GoogleMap.InfoWindowAdapter; 
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener; 
import com.google.android.gms.maps.SupportMapFragment; 
import com.google.android.gms.maps.model.BitmapDescriptorFactory; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.Marker; 
import com.google.android.gms.maps.model.MarkerOptions; 

public class PlacesMapActivity extends android.support.v4.app.FragmentActivity 
    implements OnClickListener, LocationListener { 
/** 
* Note that this may be null if the Google Play services APK is not 
* available. 
*/ 
ImageButton btn_home; 
private GoogleMap mMap; 

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

    SupportMapFragment fragment = (SupportMapFragment)getSupportFragmentManager() 
      .findFragmentById(R.id.map); 
    mMap = fragment.getMap(); 
    mMap.setMyLocationEnabled(true); 

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

    MarkerOptions markerOptions = new MarkerOptions(); 
    markerOptions.title("First Location"); 
    markerOptions.snippet("This Is Test Location"); 

    LatLng latlng = new LatLng(23.0333, 72.6167); 

    markerOptions.position(latlng); 
    // markerOptions.title("Ahmedabad Cordinat Found here"); 

    // Marker m = mMap.addMarker(markerOptions); 

    mMap.setInfoWindowAdapter(new InfoWindowAdapter() { 

     @Override 
     public View getInfoWindow(Marker arg0) { 

      return null; 
     } 

     @Override 
     public View getInfoContents(Marker marker) { 

      View myContentView = getLayoutInflater().inflate(
        R.layout.custommarker, null); 
      TextView tvTitle = ((TextView) myContentView 
        .findViewById(R.id.title)); 
      tvTitle.setText(marker.getTitle()); 
      TextView tvSnippet = ((TextView) myContentView 
        .findViewById(R.id.snippet)); 
      tvSnippet.setText(marker.getSnippet()); 
      return myContentView; 

     } 
    }); 

    mMap.addMarker(new MarkerOptions() 
      .position(latlng) 
      .title("This is Sabarmati Ashram") 
      .snippet("Ahmedabad") 
      .icon(BitmapDescriptorFactory 
       .defaultMarker(BitmapDescriptorFactory.HUE_RED))); 

    mMap.setOnInfoWindowClickListener(new OnInfoWindowClickListener() { 

     @Override 
     public void onInfoWindowClick(Marker arg0) { 
      // TODO Auto-generated method stub 
      Intent intent = new Intent(getBaseContext(), 
        DetailsOfPlacesActivity.class); 
      startActivity(intent); 
     } 
    }); 

    btn_home = (ImageButton) findViewById(R.id.activity_map_ibtn_home); 
    btn_home.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      finish(); 
     } 
    }); 
} 

@Override 
public void onBackPressed() { 
    // TODO Auto-generated method stub 
    finish(); 
    super.onBackPressed(); 
} 

@Override 
protected void onPause() { 
    // TODO Auto-generated method stub 
    finish(); 
    super.onPause(); 
} 

@Override 
public void onClick(View v) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onLocationChanged(Location location) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onProviderDisabled(String provider) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onProviderEnabled(String provider) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onStatusChanged(String provider, int status, Bundle extras) { 
    // TODO Auto-generated method stub 

} 
} 





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

<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="17" /> 

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" /> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
<uses-permission android:name="com.example.towntour.permission.MAPS_RECEIVE" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> 

<uses-feature 
    android:glEsVersion="0x00020000" 
    android:required="true" /> 

<permission 
    android:name="com.towntour.android.maps.googlev2.permission.MAPS_RECEIVE" 
    android:protectionLevel="signature" /> 

<uses-permission android:name="com.towntour.android.maps.googlev2.permission.MAPS_RECEIVE" 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@android:style/Theme.Black.NoTitleBar" > 
    <meta-data 
     android:name="com.google.android.maps.v2.API_KEY" 
     android:value="AIzaSyDp6PHK3NYNwS74cKGmX-xc4LuH_uM1mIo" /> 

    <activity 
     android:name="com.towntour.android.PlaceActivity" 
     android:label="@string/app_name" 
     android:screenOrientation="portrait" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
</application> 

</manifest>