晚上好。 我需要你的帮助。 我尝试运行以下计划，但我的导出错误如下。 晚上好。 我需要你的帮助。 我尝试运行以下计划，但我的导出错误如下。 目录下载：
12-18 20:40:30.183: E/AndroidRuntime(13636): FATAL EXCEPTION: main
12-18 20:40:30.183: E/AndroidRuntime(13636): java.lang.RuntimeException: Unable to start activity ComponentInfo{abw.abw.abw/abw.abw.abw.MainActivity}: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread.access$600(ActivityThread.java:127)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.os.Handler.dispatchMessage(Handler.java:99)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.os.Looper.loop(Looper.java:137)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread.main(ActivityThread.java:4441)
12-18 20:40:30.183: E/AndroidRuntime(13636): at java.lang.reflect.Method.invokeNative(Native Method)
12-18 20:40:30.183: E/AndroidRuntime(13636): at java.lang.reflect.Method.invoke(Method.java:511)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-18 20:40:30.183: E/AndroidRuntime(13636): at dalvik.system.NativeStart.main(Native Method)
12-18 20:40:30.183: E/AndroidRuntime(13636): Caused by: android.view.InflateException: Binary XML file line #32: Error inflating class fragment
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.Activity.setContentView(Activity.java:1835)
12-18 20:40:30.183: E/AndroidRuntime(13636): at abw.abw.abw.MainActivity.onCreate(MainActivity.java:49)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.Activity.performCreate(Activity.java:4465)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
12-18 20:40:30.183: E/AndroidRuntime(13636): ... 11 more
12-18 20:40:30.183: E/AndroidRuntime(13636): Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml does not have the right value. Expected 6171000 but found 0. You must have the following declaration within the <application> element: <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.common.GooglePlayServicesUtil.E(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.internal.u.T(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.internal.u.S(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.SupportMapFragment$b.mA(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.SupportMapFragment$b.a(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.dynamic.a.a(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.dynamic.a.onInflate(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at com.google.android.gms.maps.SupportMapFragment.onInflate(Unknown Source)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2158)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
12-18 20:40:30.183: E/AndroidRuntime(13636): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:669)
12-18 20:40:30.183: E/AndroidRuntime(13636): ... 21 more
MainActivity.java
package abw.abw.abw;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.json.JSONObject;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.Menu;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Toast;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
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.MarkerOptions;
import com.google.android.gms.maps.model.PolylineOptions;
public class MainActivity extends FragmentActivity {
GoogleMap map;
RadioButton rbDriving;
RadioButton rbBiCycling;
RadioButton rbWalking;
RadioGroup rgModes;
ArrayList<LatLng> markerPoints;
int mMode=0;
final int MODE_DRIVING=0;
final int MODE_BICYCLING=1;
final int MODE_WALKING=2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Getting reference to rb_driving
rbDriving = (RadioButton) findViewById(R.id.rb_driving);
// Getting reference to rb_bicylcing
rbBiCycling = (RadioButton) findViewById(R.id.rb_bicycling);
// Getting reference to rb_walking
rbWalking = (RadioButton) findViewById(R.id.rb_walking);
// Getting Reference to rg_modes
rgModes = (RadioGroup) findViewById(R.id.rg_modes);
rgModes.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// Checks, whether start and end locations are captured
if(markerPoints.size() >= 2){
LatLng origin = markerPoints.get(0);
LatLng dest = markerPoints.get(1);
// Getting URL to the Google Directions API
String url = getDirectionsUrl(origin, dest);
DownloadTask downloadTask = new DownloadTask();
// Start downloading json data from Google Directions API
downloadTask.execute(url);
}
}
});
// Initializing
markerPoints = new ArrayList<LatLng>();
// Getting reference to SupportMapFragment of the activity_main
SupportMapFragment fm = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);
// Getting Map for the SupportMapFragment
map = fm.getMap();
// Enable MyLocation Button in the Map
map.setMyLocationEnabled(true);
// Setting onclick event listener for the map
map.setOnMapClickListener(new OnMapClickListener() {
@Override
public void onMapClick(LatLng point) {
// Already two locations
if(markerPoints.size()>1){
markerPoints.clear();
map.clear();
}
// Adding new item to the ArrayList
markerPoints.add(point);
// Draws Start and Stop markers on the Google Map
drawStartStopMarkers();
// Checks, whether start and end locations are captured
if(markerPoints.size() >= 2){
LatLng origin = markerPoints.get(0);
LatLng dest = markerPoints.get(1);
// Getting URL to the Google Directions API
String url = getDirectionsUrl(origin, dest);
DownloadTask downloadTask = new DownloadTask();
// Start downloading json data from Google Directions API
downloadTask.execute(url);
}
}
});
}
// Drawing Start and Stop locations
private void drawStartStopMarkers(){
for(int i=0;i<markerPoints.size();i++){
// Creating MarkerOptions
MarkerOptions options = new MarkerOptions();
// Setting the position of the marker
options.position(markerPoints.get(i) );
/**
* For the start location, the color of marker is GREEN and
* for the end location, the color of marker is RED.
*/
if(i==0){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
}else if(i==1){
options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
}
// Add new marker to the Google Map Android API V2
map.addMarker(options);
}
}
private String getDirectionsUrl(LatLng origin,LatLng dest){
// Origin of route
String str_origin = "origin="+origin.latitude+","+origin.longitude;
// Destination of route
String str_dest = "destination="+dest.latitude+","+dest.longitude;
// Sensor enabled
String sensor = "sensor=false";
// Travelling Mode
String mode = "mode=driving";
if(rbDriving.isChecked()){
mode = "mode=driving";
mMode = 0 ;
}else if(rbBiCycling.isChecked()){
mode = "mode=bicycling";
mMode = 1;
}else if(rbWalking.isChecked()){
mode = "mode=walking";
mMode = 2;
}
// Building the parameters to the web service
String parameters = str_origin+"&"+str_dest+"&"+sensor+"&"+mode;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/directions/"+output+"?"+parameters;
return url;
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException{
String data = "";
InputStream iStream = null;
HttpURLConnection urlConnection = null;
try{
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while( ( line = br.readLine()) != null){
sb.append(line);
}
data = sb.toString();
br.close();
}catch(Exception e){
Log.d("Exception while downloading url", e.toString());
}finally{
iStream.close();
urlConnection.disconnect();
}
return data;
}
// Fetches data from url passed
private class DownloadTask extends AsyncTask<String, Void, String>{
// Downloading data in non-ui thread
@Override
protected String doInBackground(String... url) {
// For storing data from web service
String data = "";
try{
// Fetching the data from web service
data = downloadUrl(url[0]);
}catch(Exception e){
Log.d("Background Task",e.toString());
}
return data;
}
// Executes in UI thread, after the execution of
// doInBackground()
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
ParserTask parserTask = new ParserTask();
// Invokes the thread for parsing the JSON data
parserTask.execute(result);
}
}
/** A class to parse the Google Places in JSON format */
private class ParserTask extends AsyncTask<String, Integer, List<List<HashMap<String,String>>> >{
// Parsing the data in non-ui thread
@Override
protected List<List<HashMap<String, String>>> doInBackground(String... jsonData) {
JSONObject jObject;
List<List<HashMap<String, String>>> routes = null;
try{
jObject = new JSONObject(jsonData[0]);
DirectionsJSONParser parser = new DirectionsJSONParser();
// Starts parsing data
routes = parser.parse(jObject);
}catch(Exception e){
e.printStackTrace();
}
return routes;
}
// Executes in UI thread, after the parsing process
@Override
protected void onPostExecute(List<List<HashMap<String, String>>> result) {
ArrayList<LatLng> points = null;
PolylineOptions lineOptions = null;
MarkerOptions markerOptions = new MarkerOptions();
// Traversing through all the routes
for(int i=0;i<result.size();i++){
points = new ArrayList<LatLng>();
lineOptions = new PolylineOptions();
// Fetching i-th route
List<HashMap<String, String>> path = result.get(i);
// Fetching all the points in i-th route
for(int j=0;j<path.size();j++){
HashMap<String,String> point = path.get(j);
double lat = Double.parseDouble(point.get("lat"));
double lng = Double.parseDouble(point.get("lng"));
LatLng position = new LatLng(lat, lng);
points.add(position);
}
// Adding all the points in the route to LineOptions
lineOptions.addAll(points);
lineOptions.width(2);
// Changing the color polyline according to the mode
if(mMode==MODE_DRIVING)
lineOptions.color(Color.RED);
else if(mMode==MODE_BICYCLING)
lineOptions.color(Color.GREEN);
else if(mMode==MODE_WALKING)
lineOptions.color(Color.BLUE);
}
if(result.size()<1){
Toast.makeText(getBaseContext(), "No Points", Toast.LENGTH_SHORT).show();
return;
}
// Drawing polyline in the Google Map for the i-th route
map.addPolyline(lineOptions);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
DirectionsJSONParser.java
package abw.abw.abw;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.google.android.gms.maps.model.LatLng;
public class DirectionsJSONParser {
/** Receives a JSONObject and returns a list of lists containing latitude and longitude */
public List<List<HashMap<String,String>>> parse(JSONObject jObject){
List<List<HashMap<String, String>>> routes = new ArrayList<List<HashMap<String,String>>>() ;
JSONArray jRoutes = null;
JSONArray jLegs = null;
JSONArray jSteps = null;
try {
jRoutes = jObject.getJSONArray("routes");
/** Traversing all routes */
for(int i=0;i<jRoutes.length();i++){
jLegs = ( (JSONObject)jRoutes.get(i)).getJSONArray("legs");
List<HashMap<String, String>> path = new ArrayList<HashMap<String, String>>();
/** Traversing all legs */
for(int j=0;j<jLegs.length();j++){
jSteps = ( (JSONObject)jLegs.get(j)).getJSONArray("steps");
/** Traversing all steps */
for(int k=0;k<jSteps.length();k++){
String polyline = "";
polyline = (String)((JSONObject)((JSONObject)jSteps.get(k)).get("polyline")).get("points");
List<LatLng> list = decodePoly(polyline);
/** Traversing all points */
for(int l=0;l<list.size();l++){
HashMap<String, String> hm = new HashMap<String, String>();
hm.put("lat", Double.toString(((LatLng)list.get(l)).latitude) );
hm.put("lng", Double.toString(((LatLng)list.get(l)).longitude) );
path.add(hm);
}
}
routes.add(path);
}
}
} catch (JSONException e) {
e.printStackTrace();
}catch (Exception e){
}
return routes;
}
/**
* Method to decode polyline points
* Courtesy : jeffreysambells.com/2010/05/27/decoding-polylines-from-google-maps-direction-api-with-java
* */
private List<LatLng> decodePoly(String encoded) {
List<LatLng> poly = new ArrayList<LatLng>();
int index = 0, len = encoded.length();
int lat = 0, lng = 0;
while (index < len) {
int b, shift = 0, result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do {
b = encoded.charAt(index++) - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
LatLng p = new LatLng((((double) lat / 1E5)),
(((double) lng / 1E5)));
poly.add(p);
}
return poly;
}
}
清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="abw.abw.abw"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="12"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.INTERNET"/>
<permission
android:name="abw.abw.abw.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="abw.abw.abw.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"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="abw.abw.abw.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="AIzaSyBjtHbFgMQ6S7JF9632aPTw7wNHv_D24Bo"/>
</application>
</manifest>
activity_main.xml中
<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=".MainActivity" >
<RadioGroup
android:id="@+id/rg_modes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal" >
<RadioButton android:id="@+id/rb_driving"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_driving"
android:checked="true" />
<RadioButton android:id="@+id/rb_bicycling"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_bicycling" />
<RadioButton android:id="@+id/rb_walking"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_walking" />
</RadioGroup>
<fragment
android:id="@+id/map"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@id/rg_modes"
class="com.google.android.gms.maps.SupportMapFragment" />
</RelativeLayout>
感谢您的时间。
答案 0 :(得分：0)
在Android Manifest文件中的<application>元素和<activity>元素之前添加以下声明：
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />