com.dwdesign.tweetings.activity.MapViewerActivity.java Source code

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Here is the source code for com.dwdesign.tweetings.activity.MapViewerActivity.java

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/*
 *            Tweetings - Twitter client for Android
 * 
 * Copyright (C) 2012-2013 RBD Solutions Limited <apps@tweetings.net>
 * Copyright (C) 2012 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 com.dwdesign.tweetings.activity;

import com.dwdesign.tweetings.Constants;
import com.dwdesign.tweetings.R;
import com.dwdesign.tweetings.fragment.NativeMapFragment;
import com.dwdesign.tweetings.fragment.NativeNearbyMapFragment;
import com.dwdesign.tweetings.fragment.WebMapFragment;

import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;

public class MapViewerActivity extends FragmentActivity implements Constants, OnClickListener {

    private Fragment mFragment;

    @Override
    public void onClick(final View view) {
        switch (view.getId()) {
        case R.id.close: {
            onBackPressed();
            break;
        }
        case R.id.center: {
            getLocationAndCenterMap();
            break;
        }
        }

    }

    protected void getLocationAndCenterMap() {
        LocationManager mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        final Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        final String provider = mLocationManager.getBestProvider(criteria, true);

        Location mRecentLocation = null;

        if (provider != null) {
            mRecentLocation = mLocationManager.getLastKnownLocation(provider);
        } else {
            Toast.makeText(this, R.string.cannot_get_location, Toast.LENGTH_SHORT).show();
        }

        if (mRecentLocation != null && isNativeMapSupported()) {
            NativeMapFragment aFragment = (NativeMapFragment) mFragment;
            aFragment.setCenter(mRecentLocation);
        }
    }

    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.map_viewer);
        final Uri uri = getIntent().getData();
        if (uri == null || !AUTHORITY_MAP.equals(uri.getAuthority())) {
            finish();
            return;
        }
        final Bundle bundle = new Bundle();
        final String param_lat = uri.getQueryParameter(QUERY_PARAM_LAT);
        final String param_lng = uri.getQueryParameter(QUERY_PARAM_LNG);
        if (param_lat == null || param_lng == null) {
            finish();
            return;
        }
        try {
            bundle.putDouble(INTENT_KEY_LATITUDE, Double.valueOf(param_lat));
            bundle.putDouble(INTENT_KEY_LONGITUDE, Double.valueOf(param_lng));
        } catch (final NumberFormatException e) {
            finish();
            return;
        }
        mFragment = isNativeMapSupported() ? new NativeMapFragment() : new WebMapFragment();
        mFragment.setArguments(bundle);
        final FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        ft.replace(R.id.map_frame, mFragment).commit();
    }

    private boolean isNativeMapSupported() {
        try {
            Class.forName("com.google.android.maps.MapActivity");
            Class.forName("com.google.android.maps.MapView");
        } catch (final ClassNotFoundException e) {
            return false;
        }
        return true;
    }
}