@Override
public void onBackPressed() {
// 重写onBackPressed，将字段markerConfigDialog必须置为null，以保证消除之前的引用
markerConfigDialog.dismiss();
markerConfigDialog = null;
super.onBackPressed();
}
@Override
protected void onPrepareDialog(int id, Dialog dialog) {
switch (id) {
case MARKERCONFIG_DIALOG:
if (markerConfigDialog != null && longTouchGeoPoint != null) {
Window window = markerConfigDialog.getWindow();
WindowManager.LayoutParams lp = window.getAttributes();
// 设置对话框初始位置为左上角
lp.gravity = Gravity.LEFT | Gravity.TOP;
// lp.x与lp.y表示相对于原始位置的偏移
// (touchX, touchY)为触屏位置坐标，坐标系以屏幕左上角为(0, 0)
lp.x = touchX;
lp.y = touchY;
// 重新设置对话框位置
window.setAttributes(lp);
markerConfigDialog.setLongTouchGeoPoint(longTouchGeoPoint);
}
break;
case README_DIALOG:
ReadmeDialog readmeDialog = (ReadmeDialog) dialog;
readmeDialog.setReadmeText(getResources().getString(R.string.overlayeventdemo_readme));
break;
default:
break;
}
super.onPrepareDialog(id, dialog);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
// group, item id, order, title
menu.add(0, 1, 0, R.string.clearall);
return true;
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Drawable drawableBlue = getResources().getDrawable(R.drawable.blue_pin);
blueMarkerOverlay = new DefaultItemizedOverlay(drawableBlue);
Drawable drawableGreen = getResources().getDrawable(R.drawable.green_pin);
greenMarkerOverlay = new DefaultItemizedOverlay(drawableGreen);
Drawable drawableRed = getResources().getDrawable(R.drawable.red_pin);
redMarkerOverlay = new DefaultItemizedOverlay(drawableRed);
Drawable drawableYellow = getResources().getDrawable(R.drawable.yellow_pin);
yellowMarkerOverlay = new DefaultItemizedOverlay(drawableYellow);
// 动态投影为4326的地图，防止投影坐标系设置中心点无效，图层叠加等设置经纬度坐标无效。
// CoordinateReferenceSystem crs = new CoordinateReferenceSystem();
// crs.wkid = 4326;
// baseLayerView.setCRS(crs);
mapView.getController().setZoom(6);
// mapView.getController().setCenter(new Point2D(116.391468, 39.904491));
mapView.setBuiltInZoomControls(false);
mapView.addMapViewEventListener(new MapViewEventAdapter());
TouchOverlay touchOverlay = new TouchOverlay();
mapView.getOverlays().add(touchOverlay);
mapView.getOverlays().add(blueMarkerOverlay);
mapView.getOverlays().add(greenMarkerOverlay);
mapView.getOverlays().add(redMarkerOverlay);
mapView.getOverlays().add(yellowMarkerOverlay);
// 构造一个markerConfigDialog，showDialog时即可直接返回
markerConfigDialog = new MarkerConfigDialog(this, R.style.dialogTheme);
service = new PreferencesService(this);
Map<String, Boolean> params = service.getReadmeEnable("OverlayEventDemo");
boolean isReadmeEnable = params.get("readme");
if (isReadmeEnable) {
showDialog(README_DIALOG);
}
helpBtn.setVisibility(View.VISIBLE);
helpBtn.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
showDialog(README_DIALOG);
}
});
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}