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POHow to Focus at Marker in google map in android
 

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  1. POHow to Focus at Marker in google map in android
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    <p>I just want to know whether we can focus at added marker in android application or not. If yes, how? or is there any alternative way to get this task done.</p> <p>lets say I have added a marker using below code :</p> <pre><code>map.addMarker(new MarkerOptions() .title(title) .snippet(snippet) .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)) .position(pos) ); </code></pre> <p>how to focus at this marker with maximum zoom. and if I will add 1 more marker it should adjust zooming(maximum possible zoom) in such a way so that both marker will display at once.<br/> This is what I am trying to do but it is failing at line <code>map.moveCamera(cu);</code>.</p> <pre><code>import java.util.ArrayList; import java.util.List; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.view.Menu; import com.google.android.gms.maps.CameraUpdate; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.GoogleMap.CancelableCallback; 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.LatLngBounds; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; public class LocateUserInMap extends FragmentActivity { private GoogleMap map; private List&lt;Marker&gt; markers; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_locate_user_in_map); markers = new ArrayList&lt;Marker&gt;(); Intent intent = getIntent(); double frndLatVal = intent.getDoubleExtra("frndLatVal", 0); double frndLonVal = intent.getDoubleExtra("frndLonVal", 0); LatLng myloc = new LatLng(19.115486500000000000, 72.905544299999970000); LatLng friendloc = new LatLng(frndLatVal, frndLonVal); map = ((SupportMapFragment) getSupportFragmentManager() .findFragmentById(R.id.google_map)).getMap(); addToMap(myloc, "My location", "From here 0M", "blue"); addToMap(friendloc, "Friend location", "From here 100M", "red"); showMarkersAtOnce(); } private void showMarkersAtOnce() { LatLngBounds.Builder builder = new LatLngBounds.Builder(); for (Marker m : markers) { builder.include(m.getPosition()); } LatLngBounds bounds = builder.build(); int padding = 0; // offset from edges of the map in pixels CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, padding); map.moveCamera(cu); /* map.getUiSettings().setScrollGesturesEnabled(false); map.animateCamera(cu, //CameraUpdateFactory.newLatLng(new LatLng(lat, lng)) new CancelableCallback() { @Override public void onFinish() { map.getUiSettings().setScrollGesturesEnabled(true); } @Override public void onCancel() { map.getUiSettings().setAllGesturesEnabled(true); } });*/ // map.animateCamera(CameraUpdateFactory.zoomBy(13)); } private void addToMap(LatLng pos, String title, String snippet, String markercolor) { Marker localmarker = null; if (markercolor == "blue") { localmarker = map.addMarker(new MarkerOptions() .title(title) .snippet(snippet) .icon(BitmapDescriptorFactory .defaultMarker(BitmapDescriptorFactory.HUE_BLUE)) .position(pos)); } else if (markercolor == "red") { localmarker = map.addMarker(new MarkerOptions() .title(title) .snippet(snippet) .icon(BitmapDescriptorFactory .defaultMarker(BitmapDescriptorFactory.HUE_RED)) .position(pos)); } markers.add(localmarker); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.locate_user_in_map, menu); return true; } } </code></pre> <p>and Logcat</p> <pre><code>08-04 13:23:32.975: W/EGL_emulation(764): eglSurfaceAttrib not implemented 08-04 13:23:42.787: D/dalvikvm(764): GC_CONCURRENT freed 169K, 3% free 11335K/11591K, paused 130ms+40ms, total 336ms 08-04 13:23:49.812: D/dalvikvm(764): GC_CONCURRENT freed 273K, 3% free 11497K/11847K, paused 121ms+124ms, total 480ms 08-04 13:23:49.972: E/ActivityThread(764): Failed to find provider info for com.google.settings 08-04 13:23:50.259: E/ActivityThread(764): Failed to find provider info for com.google.settings 08-04 13:23:54.223: D/dalvikvm(764): GC_CONCURRENT freed 262K, 3% free 11686K/12039K, paused 115ms+110ms, total 396ms </code></pre>
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