这里是MainActivity类
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.view.View; import android.view.View.OnClickListener; import android.widget.Button; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.GoogleMap.OnMapClickListener; import com.google.android.gms.maps.GoogleMap.OnMapLongClickListener; 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; ArrayList markerPoints; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Initializing markerPoints = new ArrayList(); // Getting reference to SupportMapFragment of the activity_main SupportMapFragment fm = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map); // Getting reference to Button Button btnDraw = (Button)findViewById(R.id.btn_draw); // 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 10 locations with 8 waypoints and 1 start location and 1 end location. // Upto 8 waypoints are allowed in a query for non-business users if(markerPoints.size()>=10){ return; } // Adding new item to the ArrayList markerPoints.add(point); // Creating MarkerOptions MarkerOptions options = new MarkerOptions(); // Setting the position of the marker options.position(point); /** * For the start location, the color of marker is GREEN and * for the end location, the color of marker is RED and * for the rest of markers, the color is AZURE */ if(markerPoints.size()==1){ options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN)); }else if(markerPoints.size()==2){ options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)); }else{ options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)); } // Add new marker to the Google Map Android API V2 map.addMarker(options); } }); // The map will be cleared on long click map.setOnMapLongClickListener(new OnMapLongClickListener() { @Override public void onMapLongClick(LatLng point) { // Removes all the points from Google Map map.clear(); // Removes all the points in the ArrayList markerPoints.clear(); } }); // Click event handler for Button btn_draw btnDraw.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // 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); } } }); } 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"; // Waypoints String waypoints = ""; for(int i=2;i{ // 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>> >{ // Parsing the data in non-ui thread @Override protected List>> doInBackground(String... jsonData) { JSONObject jObject; List>> 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>> result) { ArrayList points = null; PolylineOptions lineOptions = null; // Traversing through all the routes for(int i=0;i(); lineOptions = new PolylineOptions(); // Fetching i-th route List> path = result.get(i); // Fetching all the points in i-th route for(int j=0;j 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); lineOptions.color(Color.RED); } // 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; } }
package in.wptrafficanalyzer.locationwaypointmapv2; 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>> parse(JSONObject jObject){ List>> routes = new ArrayList>>(); JSONArray jRoutes = null; JSONArray jLegs = null; JSONArray jSteps = null; try { jRoutes = jObject.getJSONArray("routes"); /** Traversing all routes */ for(int i=0;i>(); /** Traversing all legs */ for(int j=0;j list = decodePoly(polyline); /** Traversing all points */ for(int l=0;l hm = new HashMap(); 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 decodePoly(String encoded) { List poly = new ArrayList(); int index = 0, len = encoded.length(); int lat = 0, lng = 0; while (index = 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) = 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; } }
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET"/>
<permission
android:name="in.wptrafficanalyzer.locationwaypointmapv2.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-permission android:name="in.wptrafficanalyzer.locationwaypointmapv2.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="in.wptrafficanalyzer.locationwaypointmapv2.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="AIzaSyC6TVk6gtR_i_.......**************"/>
</application>
<Button
android:id="@+id/btn_draw"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/str_btn_draw"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<fragment
android:id="@+id/map"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
class="com.google.android.gms.maps.SupportMapFragment"
android:layout_above="@id/btn_draw" />
我的LogCat文件是
03-02 21:35:25.157: D/dalvikvm(25733): Late-enabling CheckJNI 03-02 21:35:25.758: D/AndroidRuntime(25733): Shutting down VM 03-02 21:35:25.758: W/dalvikvm(25733): threadid=1: thread exiting with uncaught exception (group=0x40ddd2a0) 03-02 21:35:25.768: E/AndroidRuntime(25733): FATAL EXCEPTION: main 03-02 21:35:25.768: E/AndroidRuntime(25733): java.lang.RuntimeException: Unable to start activity ComponentInfo{in.wptrafficanalyzer.locationwaypointmapv2/in.wptrafficanalyzer.locationwaypointmapv2.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class fragment 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread.access$700(ActivityThread.java:140) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.os.Handler.dispatchMessage(Handler.java:99) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.os.Looper.loop(Looper.java:137) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread.main(ActivityThread.java:4935) 03-02 21:35:25.768: E/AndroidRuntime(25733): at java.lang.reflect.Method.invokeNative(Native Method) 03-02 21:35:25.768: E/AndroidRuntime(25733): at java.lang.reflect.Method.invoke(Method.java:511) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805) 03-02 21:35:25.768: E/AndroidRuntime(25733): at dalvik.system.NativeStart.main(Native Method) 03-02 21:35:25.768: E/AndroidRuntime(25733): Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class fragment 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:710) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.rInflate(LayoutInflater.java:752) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.inflate(LayoutInflater.java:495) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:316) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.Activity.setContentView(Activity.java:1924) 03-02 21:35:25.768: E/AndroidRuntime(25733): at in.wptrafficanalyzer.locationwaypointmapv2.MainActivity.onCreate(MainActivity.java:43) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.Activity.performCreate(Activity.java:5206) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074) 03-02 21:35:25.768: E/AndroidRuntime(25733): ... 11 more 03-02 21:35:25.768: E/AndroidRuntime(25733): Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml does not have the right value. Expected 4242000 but found 0. You must have the following declaration within the element: 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.common.GooglePlayServicesUtil.n(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.common.GooglePlayServicesUtil.isGooglePlayServicesAvailable(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.internal.q.v(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.internal.q.u(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.MapsInitializer.initialize(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.SupportMapFragment$b.ex(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.SupportMapFragment$b.a(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.dynamic.a.a(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.dynamic.a.onInflate(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at com.google.android.gms.maps.SupportMapFragment.onInflate(Unknown Source) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:279) 03-02 21:35:25.768: E/AndroidRuntime(25733): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:682) 03-02 21:35:25.768: E/AndroidRuntime(25733): ... 21 more
求你了,救命
问题就在这里:
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyC6TVk6gtR_i_.......**************"/>
meta-data
标记在这里需要一个integer
,因此您必须在这里包含您正在使用的com.google.android.maps
库的版本。您可能会在包含在项目中的lib中找到这一点,然后只需定义:
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="@integer/your_google_maps_version" />
我想添加一个对象LinearLayout,但它抛出一个错误错误行:在me.solo_team.futureleader.ui.news.NewsFragment.onCreateView(NewsFragment.java:62)(addElement(uris.get(i),names.get(i));) 新闻片段 fragment_news: mews_新闻。xml: 错误: E/Androi
致命异常:java.lang.RuntimeException:无法启动activity ComponentInfo{com.test/com.Activities.ViewActivity}:Android.View.InflateException:二进制XML文件行#29:二进制XML文件行#29:在Android.app.ActivityThread.HandleLaunchActivit
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我有一点问题,如果我的谷歌地图应用程序。我的应用程序中有三个按钮;“打开谷歌地图”、“摄像头”和“触摸”。当应用程序拉努克时,它会直接进入Google Maps屏幕,在此之前一切都很好,但当用户在Google Maps屏幕上并再次单击Google Maps按钮时,应用程序崩溃,我的logcat中出现以下错误; 它说我的xml文件在第33行有错误,但根据我的经验和我在网上搜索发现的,这就是我应该如何