/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.mapdemo;
import com.google.android.gms.maps.SupportMapFragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* This shows how to add a map to a ViewPager. Note the use of
* {@link ViewGroup#requestTransparentRegion(View)} to reduce jankiness.
*/
public class MapInPagerActivity extends FragmentActivity {
private MyAdapter mAdapter;
private ViewPager mPager;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map_in_pager);
mAdapter = new MyAdapter(getSupportFragmentManager());
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(mAdapter);
// This is required to avoid a black flash when the map is loaded. The flash is due
// to the use of a SurfaceView as the underlying view of the map.
mPager.requestTransparentRegion(mPager);
}
/** A simple fragment that displays a TextView. */
public static class TextFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
return inflater.inflate(R.layout.text_fragment, container, false);
}
}
/** A simple FragmentPagerAdapter that returns two TextFragment and a SupportMapFragment. */
public static class MyAdapter extends FragmentPagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
return 3;
}
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
case 1:
return new TextFragment();
case 2:
return SupportMapFragment.newInstance();
default:
return null;
}
}
}
}