基于百度定位及天气获取的DEMO +fragment+sharedpreference
此工程较BaiduLocationXML相比：
1.植入fragment，结合微信UI
2.在原本主界面的button textview textview 移植到Fragment1
3.增加网络判断，网络不通的情况下做另外处理
4.在网络通畅的情况下，将地址信息、天气信息存入xml(sharedpreferences)，
网络不通的情况下，将原先xml信息读出展现
fragment植入
public class Fragment1 extends Fragment { @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment1,container, false); locBtn = (Button) rootView.findViewById(R.id.location); locBtn.setVisibility(View.INVISIBLE);//隐藏button locInfo = (TextView) rootView.findViewById(R.id.location_info); weatherInfo = (TextView) rootView.findViewById(R.id.weather_info); initializeListeners(); initialize();//注册广播 return rootView; } @Override public void onDestroyView() { getActivity().unregisterReceiver(broadcastReceiver); //注销广播 super.onDestroyView(); }
public class MainActivity extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); // 初始化滑动条1/3 initTabLine(); // 初始化界面 initView();//载入fragment } private void initView() { // 实例化对象 viewPager = (ViewPager) findViewById(R.id.viewpager); tv1 = (TextView)findViewById(R.id.tv1); tv2 = (TextView) findViewById(R.id.tv2); tv3 = (TextView) findViewById(R.id.tv3); list = new ArrayList<Fragment>(); // 设置数据源 Fragment1 fragment1 = new Fragment1(); Fragment2 fragment2 = new Fragment2(); Fragment3 fragment3 = new Fragment3(); list.add(fragment1); list.add(fragment2); list.add(fragment3); // 设置适配器 FragmentPagerAdapter adapter = new FragmentPagerAdapter( getSupportFragmentManager()) { @Override public int getCount() { return list.size(); } @Override public Fragment getItem(int arg0) { return list.get(arg0); } }; // 绑定适配器 viewPager.setAdapter(adapter); // 设置滑动监听 viewPager.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { // 当页面被选择时，先讲3个textview的字体颜色初始化成黑 tv1.setTextColor(Color.BLACK); tv2.setTextColor(Color.BLACK); tv3.setTextColor(Color.BLACK); // 再改变当前选择页（position）对应的textview颜色 switch (position) { case 0: tv1.setTextColor(Color.rgb(51, 153, 0)); break; case 1: tv2.setTextColor(Color.rgb(51, 153, 0)); break; case 2: tv3.setTextColor(Color.rgb(51, 153, 0)); break; } currentPage = position; } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { Log.i("tuzi", arg0 + "," + arg1 + "," + arg2); // 取得该控件的实例 LinearLayout.LayoutParams ll = (android.widget.LinearLayout.LayoutParams) tabline .getLayoutParams(); if (currentPage == 0 && arg0 == 0) { // 0->1移动(第一页到第二页) ll.leftMargin = (int) (currentPage * tabLineLength + arg1 * tabLineLength); } else if (currentPage == 1 && arg0 == 1) { // 1->2移动（第二页到第三页） ll.leftMargin = (int) (currentPage * tabLineLength + arg1 * tabLineLength); } else if (currentPage == 1 && arg0 == 0) { // 1->0移动（第二页到第一页） ll.leftMargin = (int) (currentPage * tabLineLength - ((1 - arg1) * tabLineLength)); } else if (currentPage == 2 && arg0 == 1) { // 2->1移动（第三页到第二页） ll.leftMargin = (int) (currentPage * tabLineLength - (1 - arg1) * tabLineLength); } tabline.setLayoutParams(ll); } @Override public void onPageScrollStateChanged(int arg0) { // TODO Auto-generated method stub } }); }
SharedPreferences:
//保存为xml部分 SharedPreferences perference =context.getSharedPreferences("result",context.MODE_WORLD_READABLE);//xml名为result editor = perference.edit(); editor.putString("地址",addressStr); editor.putString("天气信息",result); //以上的put内容是保存在内容中，完成后利用commit提交 editor.commit();
//获取SharedPreferences SharedPreferences perference = getActivity().getApplicationContext().getSharedPreferences("result",getActivity().getApplicationContext().MODE_PRIVATE); //取得key为name的值，如果不存在，则返回空值 String addr = perference.getString("地址",""); //取得key为age的值，如果不存在，则返回0 String weather = perference.getString("天气信息","");
网络连通状态判断
//构造函数类型 public class NetworkStatus { public boolean netStatus = false; public NetworkStatus(Context context) { try { ConnectivityManager connectManager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetworkInfo = connectManager .getActiveNetworkInfo(); if (activeNetworkInfo != null) { if (activeNetworkInfo.isAvailable() && activeNetworkInfo.isConnected()) { netStatus = true; } } } catch (Exception e) { e.printStackTrace(); } } }
//boolean类型 public class NetworkStatus { public boolean netStatus = false; public NetworkStatus(Context context) { ConnectivityManager con=(ConnectivityManager)context.getSystemService (Activity.CONNECTIVITY_SERVICE); boolean wifi=con.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting(); boolean internet=con.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting(); if(internet){ //执行相关操作 netStatus=true; Toast.makeText(context, "当前移动网络已连接！", Toast.LENGTH_LONG) .show(); }else if(wifi){ netStatus=true; Toast.makeText(context, "当前WIFI已连接", Toast.LENGTH_LONG) .show(); } else { Toast.makeText(context, "亲，网络连了么？", Toast.LENGTH_LONG) .show(); } } }