Đó là một chút khó khăn để làm cho nó hoạt động. Nhưng tôi đã hoàn thành, và trong quá trình này, tôi cũng bắt đầu di chuyển các nút thu phóng xung quanh. Đây là mã hoàn chỉnh của tôi:
package com.squirrel.hkairpollution;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.UiSettings;
import com.google.android.gms.maps.model.LatLng;
public class MySupportMapFragment extends SupportMapFragment {
private static final String TAG = HKAirPollution.TAG;
public MySupportMapFragment() {
return;
}
@Override
public View onCreateView(LayoutInflater arg0, ViewGroup arg1, Bundle arg2) {
Log.v(TAG, "In overridden onCreateView.");
View v = super.onCreateView(arg0, arg1, arg2);
Log.v(TAG, "Initialising map.");
initMap();
return v;
}
@Override
public void onViewCreated (View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
resetButtons();
}
private void initMap(){
UiSettings settings = getMap().getUiSettings();
settings.setAllGesturesEnabled(true);
settings.setMyLocationButtonEnabled(true);
LatLng latLong = new LatLng(22.320542, 114.185715);
getMap().moveCamera(CameraUpdateFactory.newLatLngZoom(latLong,11));
}
private void resetButtons()
{
ViewGroup v1 = (ViewGroup)this.getView();
ViewGroup v2 = (ViewGroup)v1.getChildAt(0);
ViewGroup v3 = (ViewGroup)v2.getChildAt(0);
ViewGroup v4 = (ViewGroup)v3.getChildAt(1);
View position = (View)v4.getChildAt(0);
int positionWidth = position.getLayoutParams().width;
int positionHeight = position.getLayoutParams().height;
RelativeLayout.LayoutParams positionParams = new RelativeLayout.LayoutParams(positionWidth,positionHeight);
int margin = positionWidth/5;
positionParams.setMargins(0, 0, 0, margin);
positionParams.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
positionParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
position.setLayoutParams(positionParams);
View zoom = (View)v4.getChildAt(2);
int zoomWidth = zoom.getLayoutParams().width;
int zoomHeight = zoom.getLayoutParams().height;
RelativeLayout.LayoutParams zoomParams = new RelativeLayout.LayoutParams(zoomWidth, zoomHeight);
zoomParams.setMargins(0, 0, 0, margin);
zoomParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, RelativeLayout.TRUE);
zoomParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
zoom.setLayoutParams(zoomParams);
}
}