当我连接到互联网时，我已经制作了一张完整的地图，但是我想使用地图，即使没有互联网连接，也必须向我显示我最适合在线地图的地理位置。现在我的问题是，我是否必须再次使用新实现制作离线地图的新项目，或者我可以离线使用我自己的地图并对其进行一些更改。请指导我接下来要做的事情。
map=(MapView) findViewById(R.id.mvmain);
map.setBuiltInZoomControls(true);
touchy t=new touchy();
overlayList=map.getOverlays();
overlayList.add(t);
compass= new MyLocationOverlay(Main.this, map);
overlayList.add(compass);
controller= map.getController();
mapSearchBox = (EditText) findViewById(R.id.map);
mapSearchBox.setOnEditorActionListener(new TextView.OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH ||
actionId == EditorInfo.IME_ACTION_DONE ||
actionId == EditorInfo.IME_ACTION_GO ||
event.getAction() == KeyEvent.ACTION_DOWN &&
event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
// hide virtual keyboard
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mapSearchBox.getWindowToken(), 0);
new SearchClicked(mapSearchBox.getText().toString()).execute();
mapSearchBox.setText("", TextView.BufferType.EDITABLE);
return true;
}
return false;
}
});
d =getResources().getDrawable(R.drawable.aa);
controller.setZoom(6);
//Placing pinpoint at location
lm=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria crit=new Criteria();
towers=lm.getBestProvider(crit, false);
Location location=lm.getLastKnownLocation(towers);
if(location !=null)
{
lat=(int) (location.getLatitude() *1E6);
longi=(int) (location.getLongitude() *1E6);
GeoPoint ourLocation= new GeoPoint(lat,longi);
OverlayItem overlayItem= new OverlayItem(ourLocation,"","");
CustomPinpoint custom=new CustomPinpoint(d,Main.this);
custom.insertPinPoint(overlayItem);
overlayList.add(custom);
}
else
{
Toast.makeText(Main.this,"Couldn't get provider", Toast.LENGTH_SHORT).show();
}
}