JSON 배열에서 좌표 목록을받는지도 애플리케이션을 만들고 있습니다. I @Override dispatchTouchEvent
지도에서 좌표를 찾은 다음 ASYNCTask를 실행하여 새 점을 얻습니다.Android MapView JSON 배열 점 배열 추가
점을로드하지만 주위를 스크롤 한 후 강제로 닫습니다. 이상적인 방법은지도의 현재 지점을 지우고 터치 이벤트 이후 새 지점에서 새 지점을 다시로드하는 것입니다.
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
int actionType = ev.getAction();
switch (actionType) {
case MotionEvent.ACTION_UP:
Projection proj = mapView.getProjection();
GeoPoint loc = proj.fromPixels((int) ev.getX(), (int) ev.getY());
String lng = Double.toString(loc.getLongitudeE6()/1e6);
String lat = Double.toString(loc.getLatitudeE6()/1e6);
new mapStations().execute();
Toast.makeText(getApplicationContext(),
"Lat: " + lat + " Lng: " + lng, Toast.LENGTH_SHORT).show();
}
return super.dispatchTouchEvent(ev);
}
private class mapStations extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... arg0) {
try {
JSONObject obj = new JSONObject(API.nearByStations(lat, lng, 0));
JSONArray stations = obj.getJSONArray("stations");
for (int j = 0; j < stations.length(); j++) {
JSONObject jsonObject = stations.getJSONObject(j);
add(jsonObject.getDouble("lat"), jsonObject.getDouble("lng"));
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
}
public void add(double lat, double lng) {
mapOverlays = mapView.getOverlays();
drawable = this.getResources().getDrawable(R.drawable.androidmarker);
itemizedOverlay = new MapsOverlay(drawable);
GeoPoint point = new GeoPoint((int) (lat * 1e6), (int) (lng * 1e6));
OverlayItem overlayitem = new OverlayItem(point, "", "");
itemizedOverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedOverlay);
}
로그 캣 :
12-18 22:52:01.076: E/AndroidRuntime(25072): FATAL EXCEPTION: main
12-18 22:52:01.076: E/AndroidRuntime(25072): java.util.ConcurrentModificationException
12-18 22:52:01.076: E/AndroidRuntime(25072): at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:576)
12-18 22:52:01.076: E/AndroidRuntime(25072): at com.google.android.maps.OverlayBundle.draw(OverlayBundle.java:41)
12-18 22:52:01.076: E/AndroidRuntime(25072): at com.google.android.maps.MapView.onDraw(MapView.java:530)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.View.draw(View.java:6880)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.View.draw(View.java:6883)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.widget.FrameLayout.draw(FrameLayout.java:357)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.View.draw(View.java:6883)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.widget.FrameLayout.draw(FrameLayout.java:357)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.View.draw(View.java:6883)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.widget.FrameLayout.draw(FrameLayout.java:357)
12-18 22:52:01.076: E/AndroidRuntime(25072): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2106)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewRoot.draw(ViewRoot.java:1562)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewRoot.performTraversals(ViewRoot.java:1298)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.view.ViewRoot.handleMessage(ViewRoot.java:1911)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.os.Handler.dispatchMessage(Handler.java:99)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.os.Looper.loop(Looper.java:130)
12-18 22:52:01.076: E/AndroidRuntime(25072): at android.app.ActivityThread.main(ActivityThread.java:3821)
12-18 22:52:01.076: E/AndroidRuntime(25072): at java.lang.reflect.Method.invokeNative(Native Method)
12-18 22:52:01.076: E/AndroidRuntime(25072): at java.lang.reflect.Method.invoke(Method.java:507)
12-18 22:52:01.076: E/AndroidRuntime(25072): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
12-18 22:52:01.076: E/AndroidRuntime(25072): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
12-18 22:52:01.076: E/AndroidRuntime(25072): at dalvik.system.NativeStart.main(Native Method)
나중에 노트에서 나는 각 지점 및 탭 이벤트에 대한 다른 아이콘을 가지고 싶다는 자세한 내용을 가지고 여기
지금까지 내 코드입니다 그 점에 대해 사용자가 두 드린다. 나는 지난 밤에 약 6 시간을 보냈다. 그리고 그것을 이해할 수 없었다. logcat 정말 많이하지 않습니다.
메소드 onPostExecute()의
으로 마지막 줄을 추가해야한다. 다른 핀과 탭 이벤트를 추가하는 방법을 배우기에 좋은 장소를 알고 있습니까? JSON이 가져온 것에 따라 다른 정보를 표시하는 핀이 필요합니다. –