java - MapView is only refreshing when it's touched -

i have mapview in fragment , want show user's current location. problem it's refreshed (in layers, first terrain, name of streets...) when mapview touched. shows front camera preview also. here's code. fragment layout

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical" >      <relativelayout         android:id="@+id/otherrelative"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparenttop="true"         android:gravity="center" >          <textview             android:id="@+id/textview2"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_margintop="16dp"             android:gravity="center"             android:text="some text"             android:textappearance="?android:attr/textappearancemedium" />          <textview             android:id="@+id/textview1"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_alignparentleft="true"             android:layout_below="@+id/textview2"             android:gravity="center"             android:text="some text"             android:textappearance="?android:attr/textappearancemedium" />     </relativelayout>      <linearlayout         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparentright="true"         android:layout_below="@+id/otherrelative" >          <framelayout             android:id="@+id/campreview"             android:layout_width="163dp"             android:layout_height="211dp" >          </framelayout>          <com.google.android.gms.maps.mapview             xmlns:map="http://schemas.android.com/apk/res-auto"             android:id="@+id/map"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:layout_weight="1.08"             app:camerazoom="15"             map:maptype="normal" >         </com.google.android.gms.maps.mapview>      </linearlayout>  </relativelayout> 

and fragment code

public class marcacionfragment extends fragment {     // graphics     private camera mcam;     private mirrorview mcampreview;     private framelayout mpreviewlayout;     private mapview viewmap;     private googlemap map;      // size of camera preview     private int size = 500;     private gpstracker gps;     private int mcameraid = 0;     private cameraupdate cameraupdate;      public marcacionfragment() {     }      public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         // retain fragment         setretaininstance(true);     }      public void onresume() {         super.onresume();         if (mcam == null && mpreviewlayout != null) {             mpreviewlayout.removeallviews();             startcamerainlayout(mpreviewlayout, mcameraid, getview());         }     }      @override     public void onpause() {         if (mcam != null) {             mcam.release();             mcam = null;         }         super.onpause();     }      public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {         view rootview = inflater.inflate(r.layout.marcacion_layout, container, false);         mcameraid = findfirstfrontfacingcamera();         mpreviewlayout = (framelayout) rootview.findviewbyid(r.id.campreview);         viewmap = (mapview) rootview.findviewbyid(r.id.map);         viewmap.oncreate(savedinstancestate);          map = viewmap.getmap();         map.getuisettings().setmylocationbuttonenabled(false);         map.getuisettings().setallgesturesenabled(true);         map.setmylocationenabled(true);         mpreviewlayout.removeallviews();         startcamerainlayout(mpreviewlayout, mcameraid, rootview);         mapsinitializer.initialize(this.getactivity());          // start gps service         gps = new gpstracker(rootview.getcontext());         if (gps.cangetlocation()) {             latlng latlng = new latlng(gps.getlatitude(), gps.getlongitude());             cameraupdate = cameraupdatefactory.newlatlngzoom(latlng, 15);              map.getuisettings().setmaptoolbarenabled(false);             map.getuisettings().setzoomcontrolsenabled(true);             map.animatecamera(cameraupdate);             map.addmarker(new markeroptions().position(latlng).draggable(true));             viewmap.setclickable(false);         } else {             gps.showsettingsalert();         }         viewmap.invalidate();         return rootview;     }      @suppresslint("newapi")     private int findfirstfrontfacingcamera() {         int foundid = -1;         int numcams = camera.getnumberofcameras();         (int camid = 0; camid < numcams; camid++) {             camerainfo info = new camerainfo();             camera.getcamerainfo(camid, info);             if (info.facing == camerainfo.camera_facing_front) {                 foundid = camid;                 break;             }         }         return foundid;     }      private void startcamerainlayout(framelayout layout, int cameraid, view rootview) {         mcam = camera.open(cameraid);         if (mcam != null) {             mcampreview = new mirrorview(rootview.getcontext(), mcam);             mcampreview.getholder().setfixedsize(size, (size / 4) * 3);             mcampreview.setcameradisplayorientationandsize(getactivity(), cameraid);             layout.addview(mcampreview);         }     } } 

how can refresh mapview without touching it?