android - Convert FragmentManager to MapView -

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i'm using code show map

    @override     protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      requestwindowfeature(window.feature_no_title);     getwindow().setflags(windowmanager.layoutparams.flag_fullscreen, windowmanager.layoutparams.flag_fullscreen);      setcontentview(r.layout.activity_main);      fragmentmanager myfragmentmanager = getfragmentmanager();     mapfragment mymapfragment = (mapfragment)myfragmentmanager.findfragmentbyid(r.id.map);     mymap = mymapfragment.getmap();      mymap.setmylocationenabled(true);      mymap.setmaptype(googlemap.map_type_terrain);   }

and i'm using markers, drag them , delete them. if want make map mapview able draw lines using ondraw , touchevent in same time, how can convert mapview?


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