Java tutorial
/* * Twidere - Twitter client for Android * * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.mariotaku.twidere.fragment.support; import android.app.Activity; import android.graphics.Rect; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import com.google.android.gms.maps.CameraUpdate; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.MarkerOptions; import org.mariotaku.twidere.Constants; import org.mariotaku.twidere.R; import org.mariotaku.twidere.fragment.iface.IBaseFragment; import org.mariotaku.twidere.fragment.iface.IMapFragment; public class GoogleMapFragment extends SupportMapFragment implements Constants, IMapFragment, IBaseFragment { private GoogleMap mMapView; @Override public void onActivityCreated(final Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(true); final Bundle args = getArguments(); if (args == null || !args.containsKey(EXTRA_LATITUDE) || !args.containsKey(EXTRA_LONGITUDE)) return; final double lat = args.getDouble(EXTRA_LATITUDE, 0.0), lng = args.getDouble(EXTRA_LONGITUDE, 0.0); mMapView = getMap(); final MarkerOptions marker = new MarkerOptions(); marker.position(new LatLng(lat, lng)); mMapView.addMarker(marker); center(false); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_google_maps_viewer, menu); } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); onBaseViewCreated(view, savedInstanceState); requestFitSystemWindows(); } @Override public boolean onOptionsItemSelected(final MenuItem item) { switch (item.getItemId()) { case MENU_CENTER: { center(); break; } } return true; } @Override public void center() { center(true); } public void center(final boolean animate) { final Bundle args = getArguments(); if (mMapView == null || args == null || !args.containsKey(EXTRA_LATITUDE) || !args.containsKey(EXTRA_LONGITUDE)) return; final double lat = args.getDouble(EXTRA_LATITUDE, 0.0), lng = args.getDouble(EXTRA_LONGITUDE, 0.0); final CameraUpdate c = CameraUpdateFactory.newLatLngZoom(new LatLng(lat, lng), 12); if (animate) { mMapView.animateCamera(c); } else { mMapView.moveCamera(c); } } @Override public Bundle getExtraConfiguration() { return null; } @Override public int getTabPosition() { return 0; } @Override public void requestFitSystemWindows() { final Activity activity = getActivity(); final Fragment parentFragment = getParentFragment(); final IBaseFragment.SystemWindowsInsetsCallback callback; if (parentFragment instanceof IBaseFragment.SystemWindowsInsetsCallback) { callback = (IBaseFragment.SystemWindowsInsetsCallback) parentFragment; } else if (activity instanceof IBaseFragment.SystemWindowsInsetsCallback) { callback = (IBaseFragment.SystemWindowsInsetsCallback) activity; } else { return; } final Rect insets = new Rect(); if (callback.getSystemWindowsInsets(insets)) { fitSystemWindows(insets); } } @Override public void onBaseViewCreated(View view, Bundle savedInstanceState) { } protected void fitSystemWindows(Rect insets) { final View view = getView(); if (view != null) { view.setPadding(insets.left, insets.top, insets.right, insets.bottom); } } }