我正在为我的应用程序添加 GPS 定位服务。但是我收到了这个错误，我似乎无法修复。我已经包含了我所有的相关编码。如果有人对我的任何与错误无关的编码有意见，我也会很感激。
日志猫
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
显现
<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）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 爪哇
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);
}
}