Code Library » mapview

Eclipse developed Android, Hello, MapView (study 5)

support — Fri, 18 Dec 2009 01:01:06 +0000

Hello, MapView

Learning Address: http://androidappdocs.appspot.com/guide/tutorials/views/hello-mapview.html

HelloItemizedOverlay.java Code

  package com.example.test; import java.util.ArrayList; import android.graphics.drawable.Drawable; import com.google.android.maps.ItemizedOverlay; import com.google.android.maps.OverlayItem; public class HelloItemizedOverlay extends ItemizedOverlay (private ArrayList &lt;OverlayItem&gt; mOverlays = new ArrayList &lt;OverlayItem&gt; (); public HelloItemizedOverlay (Drawable defaultMarker) (super (boundCenterBottom (defaultMarker ));// TODO Auto-generated constructor stub) @ Overridepublic int size () (return mOverlays. size ();) public void addOverlay (OverlayItem overlay) (mOverlays.add (overlay); populate ();}Overrideprotected OverlayItem createItem (int i) (return mOverlays.get (i);))

HelloMapView1.java Code

  package com.example.test; import java.util.List; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.widget.LinearLayout; import android.widget.ZoomControls; import com.google.android . maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapView; import com.google.android.maps.Overlay; import com.google.android.maps.OverlayItem; public class HelloMapView1 extends MapActivity (LinearLayout linearLayout; MapView mapView; ZoomControls mZoom; List &lt;Overlay&gt; mapOverlays; Drawable drawable; HelloItemizedOverlay itemizedOverlay; / ** Called when the activity is first created. * / @ Override public void onCreate (Bundle savedInstanceState) (super . onCreate (savedInstanceState); setContentView (R.layout.main); mapView = (MapView) findViewById (R.id.mapview); mapView.setBuiltInZoomControls (true); mapOverlays = mapView.getOverlays (); drawable = this.getResources ( ). getDrawable (R.drawable.androidmarker); itemizedOverlay = new HelloItemizedOverlay (drawable); GeoPoint point = new GeoPoint (19240000, -99120000); OverlayItem overlayitem = new OverlayItem (point, &quot;&quot;, &quot;&quot;); itemizedOverlay.addOverlay ( overlayitem); mapOverlays.add (itemizedOverlay);) @ Override protected boolean isRouteDisplayed () (return false;))

Layout-> mail.xml

  &lt;? xml version = &quot;1.0&quot; encoding = &quot;utf-8&quot;?&gt; &lt;RelativeLayout xmlns: android = &quot;http://schemas.android.com/apk/res/android" android: id = "@ + id / mainlayout "android: orientation =" vertical "android: layout_width =" fill_parent "android: layout_height =" fill_parent "> <com.google.android.maps.MapView android: id =" @ + id / mapview "android: layout_width =" fill_parent "android: layout_height =" fill_parent "android: clickable =" true "android: apiKey =" Your Maps API Key "/> <LinearLayout android: id =" @ + id / zoomview "android: layout_width =" wrap_content "android: layout_height = "wrap_content" android: layout_alignBottom = "@ id / mapview" android: layout_centerHorizontal = "true "/></ RelativeLayout>

Implementation of the android Application, found that google maps can not be displayed, please know the cause of the friend told my, thank you.

Tags: android, developed, eclipse, mapview, study