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POAndroid GPS maps
 

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    <p>I want to make GPS app and I'm starting with this code which is copy paste from another tutorial. But when I test the app it blank space and the map doesn't appear! Can any one help please??!! </p> <p>Here is the code </p> <pre><code> package com.manita.mapuse; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.view.KeyEvent; import android.widget.Toast; import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; public class MapuseActivity extends MapActivity implements LocationListener { private MapView mapView = null; private LocationManager lm = null; private double lat = 0; private double lng = 0; private MapController mc = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mapView = (MapView) this.findViewById(R.id.mapView); mapView.setBuiltInZoomControls(true); lm = (LocationManager) this.getSystemService(LOCATION_SERVICE); lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 0, this); lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 10000, 0, this); mc = mapView.getController(); mc.setZoom(12); } @Override protected boolean isRouteDisplayed() { return false; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_S) { mapView.setSatellite(!mapView.isSatellite()); return true; } return super.onKeyDown(keyCode, event); } @Override public void onLocationChanged(Location location) { lat = location.getLatitude(); lng = location.getLongitude(); Toast.makeText(getBaseContext(), "Location change to : Latitude = " + lat + " Longitude = " + lng, Toast.LENGTH_SHORT).show(); GeoPoint p = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6)); mc.animateTo(p); mc.setCenter(p); } @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 } } </code></pre> <p>Here is the manifest.xml </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.manita.mapuse" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="7" /&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" &gt; &lt;uses-library android:name="com.google.android.maps" /&gt; &lt;activity android:label="@string/app_name" android:name=".MapuseActivity" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_GPS" /&gt; &lt;uses-permission android:name="android.permission.LOCATION" /&gt; &lt;/manifest&gt; </code></pre> <p>and this is my MainActivity.xml </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/mainlayout" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;com.google.android.maps.MapView android:id="@+id/mapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:enabled="true" android:clickable="true" android:apiKey="@string/mapKey" /&gt; &lt;LinearLayout android:id="@+id/zoom" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>Thank you.</p>
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    1. USPrabs
    1. USmanita marwa
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    1. COPlease check your Google MAP API Key.
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      1. USArslan
    2. COi have my map api key that i got from here [http://code.google.com/intl/fr/android/maps-api-signup.html]!!
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      1. USmanita marwa
    3. COIs it a key generated from debug key?? If not maps on emulator won't show any data but tiles...
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      1. USPrasham
 

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