RunTimeException尝试实施GPS定位器

Question

我正在为我的应用添加GPS定位服务。然而，我得到这个错误，我似乎无法修复。我已经包含了我所有的相关编码。如果任何人对我的任何编码都没有意见，那么我将不胜感激。

logcat的

08-09 11:19:24.602: E/AndroidRuntime(715): FATAL EXCEPTION: main 
08-09 11:19:24.602: E/AndroidRuntime(715): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.com.proto1/com.example.com.proto1.menu}: android.view.InflateException: Binary XML file line #77: Error inflating class com.google.android.maps.MapView 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread.access$600(ActivityThread.java:130) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.os.Handler.dispatchMessage(Handler.java:99) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.os.Looper.loop(Looper.java:137) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread.main(ActivityThread.java:4745) 
08-09 11:19:24.602: E/AndroidRuntime(715): at java.lang.reflect.Method.invokeNative(Native Method) 
08-09 11:19:24.602: E/AndroidRuntime(715): at java.lang.reflect.Method.invoke(Method.java:511) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
08-09 11:19:24.602: E/AndroidRuntime(715): at dalvik.system.NativeStart.main(Native Method) 
08-09 11:19:24.602: E/AndroidRuntime(715): Caused by: android.view.InflateException: Binary XML file line #77: Error inflating class com.google.android.maps.MapView 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.createView(LayoutInflater.java:613) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.Activity.setContentView(Activity.java:1867) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.example.com.proto1.menu.onCreate(menu.java:62) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.Activity.performCreate(Activity.java:5008) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
08-09 11:19:24.602: E/AndroidRuntime(715): ... 11 more 
08-09 11:19:24.602: E/AndroidRuntime(715): Caused by: java.lang.reflect.InvocationTargetException 
08-09 11:19:24.602: E/AndroidRuntime(715): at java.lang.reflect.Constructor.constructNative(Native Method) 
08-09 11:19:24.602: E/AndroidRuntime(715): at java.lang.reflect.Constructor.newInstance(Constructor.java:417) 
08-09 11:19:24.602: E/AndroidRuntime(715): at android.view.LayoutInflater.createView(LayoutInflater.java:587) 
08-09 11:19:24.602: E/AndroidRuntime(715): ... 22 more 
08-09 11:19:24.602: E/AndroidRuntime(715): Caused by: java.lang.IllegalArgumentException: MapViews can only be created inside instances of MapActivity. 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.google.android.maps.MapView.<init>(MapView.java:291) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.google.android.maps.MapView.<init>(MapView.java:264) 
08-09 11:19:24.602: E/AndroidRuntime(715): at com.google.android.maps.MapView.<init>(MapView.java:247) 
08-09 11:19:24.602: E/AndroidRuntime(715): ... 25 more 

清单

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.com.proto1" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk android:minSdkVersion="7" /> 

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

    <application 
     android:icon="@drawable/theeye" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name=".mainj" 
      android:label="@string/title_activity_mainj" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".menu" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MENU" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".Infoactive" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.INFOSCREEN" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".VoicePrompts" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.VOICEPROMPTS" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".VPon" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.VPON" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".VPoff" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.VPOFF" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <!-- android name must match the name of the java you want to use --> 
     <activity 
      android:name=".VoiceRecognition" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.RECOGNITIONMENU" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".Recognition" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="ACTION_RECOGNIZE_SPEECH" /> 

       <category android:name="android.intent.category.DEFAULT" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".SpeakingAndroid" 
      android:label="tts" > 
      <intent-filter> 
       <action android:name="android.intent.action.SPEAK" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".MyGPSActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="GPS_LOCATION" /> 

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

     <library 
      name="com.google.android.maps" 
      file="/system/framework/com.google.android.maps.jar" /> 

     <uses-library android:name="com.google.android.maps" /> 
    </application> 

</manifest> 

主要XML

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" 
    android:weightSum="100" > 

    <ListView 
     android:id="@+id/list" 
     android:layout_width="wrap_content" 
     android:layout_height="5dp" > 
    </ListView> 

    <LinearLayout 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:tools="http://schemas.android.com/tools" 
     android:id="@+id/linearLayout1" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignParentBottom="true" 
     android:layout_alignParentLeft="true" 
     android:layout_below="@+id/textView1" 
     android:gravity="bottom" 
     android:orientation="horizontal" 
     android:weightSum="100" > 

     <Button 
      android:id="@+id/aboutbutton" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:layout_weight="50" 
      android:gravity="center" 
      android:text="@string/a" 
      android:textSize="25dp" /> 

     <Button 
      android:id="@+id/talk" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:layout_weight="50" 
      android:gravity="center" 
      android:text="talk" 
      android:textSize="25dp" /> 
    </LinearLayout> 

    <LinearLayout 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     xmlns:tools="http://schemas.android.com/tools" 
     android:id="@+id/linearLayout1" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_above="@+id/textView1" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentTop="true" 
     android:orientation="horizontal" 
     android:weightSum="100" > 

     <Button 
      android:id="@+id/voicebutton" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:layout_weight="50" 
      android:gravity="center" 
      android:text="@string/starttalking" 
      android:textSize="25dp" /> 

     <Button 
      android:id="@+id/btn_speak" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:layout_weight="50" 
      android:gravity="center" 
      android:text="@string/start" 
      android:textSize="25dp" /> 
    </LinearLayout> 

    <com.google.android.maps.MapView 
     android:id="@+id/myGMap" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:apiKey="API_Key_String" 
     android:clickable="true" 
     android:enabled="true" /> 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_alignParentLeft="true" 
     android:layout_centerVertical="true" /> 

</RelativeLayout> 

菜单（主​​）的Java

package com.example.com.proto1; 

import android.app.Activity; 
import android.content.Intent; 
import android.location.Location; 
import android.media.MediaPlayer; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.content.pm.PackageManager; 
import android.content.pm.ResolveInfo; 
import android.speech.RecognizerIntent; 
import android.view.View.OnClickListener; 
import android.widget.ArrayAdapter; 
import android.widget.EditText; 
import android.widget.ListView; 
import android.widget.Toast; 
import android.speech.tts.TextToSpeech; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.Locale; 

import com.example.com.proto1.MyGPSActivity.LocationResult; 

import android.app.Activity; 
import android.os.Bundle; 
import android.os.Handler; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.*; 

@SuppressWarnings("unused") 
public class menu extends Activity implements TextToSpeech.OnInitListener, 
     OnClickListener { 

    LocationResult locationResult = new LocationResult() { 
     @Override 
     public void gotLocation(Location location) { 
      // Got the location! 
     } 
    }; 
    MyGPSActivity myLocation = new MyGPSActivity(); 

    // defined 
    TextToSpeech mTts; 
    public static final int VOICE_RECOGNITION_REQUEST_CODE = 1234; 

    // remember to include a listview on the xml or the voice recognition code 
    // will not work 
    public ListView mList; 
    // TTS object 
    Button speakButton, infoButton, voiceButton, talkButton; 

    // TTS object 
    public TextToSpeech myTTS; 
    // status check code 
    public int MY_DATA_CHECK_CODE = 0; 

    @Override 
    protected void onCreate(Bundle aboutmenu) { 
     super.onCreate(aboutmenu); 
     setContentView(R.layout.mainx); 

     SpeakingAndroid speak = new SpeakingAndroid(); 

     VoiceRecognition voiceinput = new VoiceRecognition(); 

     // get a reference to the button element listed in the XML layout 
     speakButton = (Button) findViewById(R.id.btn_speak); 
     infoButton = (Button) findViewById(R.id.aboutbutton); 
     voiceButton = (Button) findViewById(R.id.voicebutton); 
     talkButton = (Button) findViewById(R.id.talk); 

     // listen for clicks 
     infoButton.setOnClickListener(this); 
     speakButton.setOnClickListener(this); 
     talkButton.setOnClickListener(this); 

     // check for TTS data 
     Intent checkTTSIntent = new Intent(); 
     checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA); 
     startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE); 

     // calling method 
     voiceinputbuttons(); 

     // Check to see if a recognition activity is present 
     // if running on AVD virtual device it will give this message. The mic 
     // required only works on an actual android device// 
     PackageManager pm = getPackageManager(); 
     List<ResolveInfo> activities = pm.queryIntentActivities(new Intent(
       RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0); 
     if (activities.size() != 0) { 
      voiceButton.setOnClickListener(this); 
     } else { 
      voiceButton.setEnabled(false); 
      voiceButton.setText("Recognizer not present"); 
     } 

    } 

    // setup TTS 
    public void onInit(int initStatus) { 

     // check for successful instantiation 

     // returns a fail statement if speech doesn't work 
     if (initStatus == TextToSpeech.SUCCESS) { 
      if (myTTS.isLanguageAvailable(Locale.US) == TextToSpeech.LANG_AVAILABLE) 
       myTTS.setLanguage(Locale.US); 
     } else if (initStatus == TextToSpeech.ERROR) { 
      Toast.makeText(this, "Sorry! Text To Speech failed...", 
        Toast.LENGTH_LONG).show(); 
     } 
    } 

    public void informationmenu() { 
     speakWords("information screen"); 
     startActivity(new Intent("android.intent.action.INFOSCREEN")); 
    } 

    public void voicemenu() { 
     speakWords("voice recognition menu"); 
     startActivity(new Intent("android.intent.action.RECOGNITIONMENU")); 
    } 

    public void mainmenu() { 
     speakWords("main menu"); 
     startActivity(new Intent("android.intent.action.MENU")); 
    } 

    // creating method 
    public void voiceinputbuttons() { 
     speakButton = (Button) findViewById(R.id.btn_speak); 
     mList = (ListView) findViewById(R.id.list); 
    } 

    // respond to button clicks 
    public void onClick(View v) { 
     switch (v.getId()) { 

     // use switch case so each button does a different thing 
     // accurately(similar to an if statement) 
     case R.id.btn_speak: 
      String words1 = speakButton.getText().toString(); 

      // speakwords(xxxx); is the piece of code that actually calls the 
      // text to speech 
      speakWords(words1); 
      myLocation.getLocation(this, locationResult); 

      break; 
     case R.id.aboutbutton: 
      String words2 = infoButton.getText().toString(); 
      speakWords(words2); 
      Intent infoIntent = new Intent("android.intent.action.INFOSCREEN"); 
      startActivity(infoIntent); 
      break; 
     case R.id.voicebutton: 
      speakWords("Speak Now"); 
      startVoiceRecognitionActivity(); // call for voice recognition 
               // activity 
      break; 
     case R.id.talk: 
      speakWords("This is the main menu."); 
      break; 
     } 
    } 

    // speak the user text 
    // setting up the speakWords code 
    public void speakWords(String speech) { 

     // speak straight away 
     myTTS.speak(speech, TextToSpeech.QUEUE_FLUSH, null); 
    } 

    /** 
    * Fire an intent to start the speech recognition activity. 
    */ 
    public void startVoiceRecognitionActivity() { 
     Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 
     intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, 
       RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); 
     intent.putExtra(RecognizerIntent.EXTRA_PROMPT, 
       "Speech recognition demo"); 
     startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE); 
    } 

    /** 
    * Handle the results from the recognition activity. 
    */ 
    @Override 
    public void onActivityResult(int requestCode, int resultCode, Intent data) { 
     if (requestCode == VOICE_RECOGNITION_REQUEST_CODE 
       && resultCode == RESULT_OK) { 
      // Fill the list view with the strings the recognizer thought it 
      // could have heard 
      ArrayList<String> matches = data 
        .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); 
      mList.setAdapter(new ArrayAdapter<String>(this, 
        android.R.layout.simple_list_item_1, matches)); 
      // matches is the result of voice input. It is a list of what the 
      // user possibly said. 
      // Using an if statement for the keyword you want to use allows the 
      // use of any activity if keywords match 
      // it is possible to set up multiple keywords to use the same 
      // activity so more than one word will allow the user 
      // to use the activity (makes it so the user doesn't have to 
      // memorize words from a list) 
      // to use an activity from the voice input information simply use 
      // the following format; 
      // if (matches.contains("keyword here") { startActivity(new 
      // == Intent("name.of.manifest.ACTIVITY") 

      if (matches.contains("information")) { 
       informationmenu(); 
      } 
      if (matches.contains("info screen")) { 
       informationmenu(); 
      } 
      if (matches.contains("info")) { 
       informationmenu(); 
      } 
      if (matches.contains("about")) { 
       informationmenu(); 
      } 

      if (matches.contains("home")) { 
       mainmenu(); 
      } 
      if (matches.contains("menu")) { 
       mainmenu(); 
      } 
      if (matches.contains("home screen")) { 
       mainmenu(); 
      } 
      if (matches.contains("speak")) { 
       startActivity(new Intent("android.intent.action.SPEAK")); 
      } 
      if (matches.contains("close")) { 
       finish(); 
      } 
      if (matches.contains("stop")) { 
       finish(); 
      } 
      if (matches.contains("finish")) { 
       finish(); 
      } 
      if (matches.contains("voice")) { 
       voicemenu(); 
      } 
      if (matches.contains("recognition")) { 
       voicemenu(); 
      } 
      if (matches.contains("voice recognition")) { 
       voicemenu(); 
      } 

     } 

     // still in the onActivityResult: This is for the text to speech part 

     if (requestCode == MY_DATA_CHECK_CODE) { 
      if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) { 
       // the user has the necessary data - create the TTS 
       myTTS = new TextToSpeech(this, this); 
      } else { 
       // no data - install it now 
       Intent installTTSIntent = new Intent(); 
       installTTSIntent 
         .setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA); 
       startActivity(installTTSIntent); 
      } 
     } 

     super.onActivityResult(requestCode, resultCode, data); 

    } 

    @Override 
    protected void onDestroy() { 
     // TODO Auto-generated method stub 
     super.onDestroy(); 
     myTTS.shutdown(); 
    } 

} 

GPS Java

package com.example.com.proto1; 

import java.util.Timer; 
import java.util.TimerTask; 
import android.content.Context; 
import android.location.Location; 
import android.location.LocationListener; 
import android.location.LocationManager; 
import android.os.Bundle; 

public class MyGPSActivity { 
    Timer timer1; 
    LocationManager lm; 
    LocationResult locationResult; 
    boolean gps_enabled = false; 
    boolean network_enabled = false; 

    public boolean getLocation(Context context, LocationResult result) { 
     // I use LocationResult callback class to pass location value from 
     // MyLocation to user code. 
     locationResult = result; 
     if (lm == null) 
      lm = (LocationManager) context 
        .getSystemService(Context.LOCATION_SERVICE); 

     // exceptions will be thrown if provider is not permitted. 
     try { 
      gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER); 
     } catch (Exception ex) { 
     } 
     try { 
      network_enabled = lm 
        .isProviderEnabled(LocationManager.NETWORK_PROVIDER); 
     } catch (Exception ex) { 
     } 

     // don't start listeners if no provider is enabled 
     if (!gps_enabled && !network_enabled) 
      return false; 

     if (gps_enabled) 
      lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, 
        locationListenerGps); 
     if (network_enabled) 
      lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, 
        locationListenerNetwork); 
     timer1 = new Timer(); 
     timer1.schedule(new GetLastLocation(), 20000); 
     return true; 
    } 

    LocationListener locationListenerGps = new LocationListener() { 
     public void onLocationChanged(Location location) { 
      timer1.cancel(); 
      locationResult.gotLocation(location); 
      lm.removeUpdates(this); 
      lm.removeUpdates(locationListenerNetwork); 
     } 

     public void onProviderDisabled(String provider) { 
     } 

     public void onProviderEnabled(String provider) { 
     } 

     public void onStatusChanged(String provider, int status, Bundle extras) { 
     } 
    }; 

    LocationListener locationListenerNetwork = new LocationListener() { 
     public void onLocationChanged(Location location) { 
      timer1.cancel(); 
      locationResult.gotLocation(location); 
      lm.removeUpdates(this); 
      lm.removeUpdates(locationListenerGps); 
     } 

     public void onProviderDisabled(String provider) { 
     } 

     public void onProviderEnabled(String provider) { 
     } 

     public void onStatusChanged(String provider, int status, Bundle extras) { 
     } 
    }; 

    class GetLastLocation extends TimerTask { 
     @Override 
     public void run() { 
      lm.removeUpdates(locationListenerGps); 
      lm.removeUpdates(locationListenerNetwork); 

      Location net_loc = null, gps_loc = null; 
      if (gps_enabled) 
       gps_loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER); 
      if (network_enabled) 
       net_loc = lm 
         .getLastKnownLocation(LocationManager.NETWORK_PROVIDER); 

      // if there are both values use the latest one 
      if (gps_loc != null && net_loc != null) { 
       if (gps_loc.getTime() > net_loc.getTime()) 
        locationResult.gotLocation(gps_loc); 
       else 
        locationResult.gotLocation(net_loc); 
       return; 
      } 

      if (gps_loc != null) { 
       locationResult.gotLocation(gps_loc); 
       return; 
      } 
      if (net_loc != null) { 
       locationResult.gotLocation(net_loc); 
       return; 
      } 
      locationResult.gotLocation(null); 
     } 
    } 

    public static abstract class LocationResult { 
     public abstract void gotLocation(Location location); 
    } 
} 

Answer 1

将以下行放在AndroidManifest.xml文件的应用程序元素中。

<uses-library android:name="com.google.android.maps" />