Android programming to implement simple traffic management function Example _android

The examples in this article describe the way Android programming implements simple traffic management functionality. Share to everyone for your reference, specific as follows:

Package cn.itcast.mobilesafe.ui;
Import java.util.List;
Import android.app.Activity;
Import android.content.Intent;
Import Android.content.pm.PackageManager;
Import Android.content.pm.ResolveInfo;
Import android.graphics.drawable.Drawable;
Import Android.net.TrafficStats;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.view.ViewGroup;
Import Android.widget.BaseAdapter;
Import Android.widget.ImageView;
Import Android.widget.ListView;
Import Android.widget.TextView;
Import CN.ITCAST.MOBILESAFE.R;
Import Cn.itcast.mobilesafe.util.TextForMater;
  public class Trafficmanageractivity extends activity {private TextView _3gtotal;
  Private TextView wifitotal;
  Private ListView content;
  Private String mobiletraffic;
  Private String wifitraffic;
  Private Packagemanager pm;
  Private Trafficadapter adapter;
    @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    PM = Getpackagemanager (); Setcontentview (r.layout.tRaffic_manager);
    _3gtotal = (TextView) This.findviewbyid (r.id._3gtotal);
    Wifitotal = (TextView) This.findviewbyid (r.id.wifitotal);
    Content = (ListView) This.findviewbyid (r.id.content);
    Settotaldata ();
    adapter = new Trafficadapter ();
    Content.addheaderview (View.inflate (this, r.layout.traffic_title, null));
  Content.setadapter (adapter);
    private void Settotaldata () {Long Mobilerx = Trafficstats.getmobilerxbytes ();
    Long mobiletx = Trafficstats.getmobiletxbytes ();
    Long Totalrx = Trafficstats.gettotalrxbytes ();
    Long Totaltx = Trafficstats.gettotaltxbytes ();
    Long Wifirx = Totalrx-mobilerx;
    Long wifitx = Totaltx-mobiletx;
    Mobiletraffic = textformater.getdatasize (Mobilerx + mobiletx);
    _3gtotal.settext (mobiletraffic);
    Wifitraffic = textformater.getdatasize (Wifitx + Wifirx);
  Wifitotal.settext (wifitraffic);
    Private class Trafficadapter extends baseadapter{list<resolveinfo> Resolveinfos; Public TraffiCadapter () {super ();
      Intent Intent = new Intent ();
      Intent.setaction ("Android.intent.action.MAIN");
      Intent.addcategory ("Android.intent.category.LAUNCHER");
    Resolveinfos = Pm.queryintentactivities (Intent, packagemanager.match_default_only);
    @Override public int GetCount () {return resolveinfos.size ();
    @Override public Object getitem (int position) {return position;
    @Override public long getitemid (int position) {return position;
      @Override public view GetView (int position, view Convertview, ViewGroup parent) {view view;
      if (null = = Convertview) {view = View.inflate (Getapplicationcontext (), r.layout.traffic_item, NULL);
      }else{view = Convertview;
      } Viewholder holder = new Viewholder ();
      Holder.iv_traffic_icon = (ImageView) View.findviewbyid (R.id.iv_traffic_icon); Holder.tv_traffic_name = (TextView) View.findviewbyid (r.id.tv_traffIc_name);
      Holder.tv_traffic_tx = (TextView) View.findviewbyid (R.ID.TV_TRAFFIC_TX);
      Holder.tv_traffic_rx = (TextView) View.findviewbyid (R.ID.TV_TRAFFIC_RX);
      Resolveinfo info = resolveinfos.get (position);
      String appName = Info.loadlabel (PM). toString ();
      Holder.tv_traffic_name.setText (AppName);
      drawable icon = Info.loadicon (PM);
      Holder.iv_traffic_icon.setImageDrawable (icon);
      int uid = INFO.ACTIVITYINFO.APPLICATIONINFO.UID;
      Holder.tv_traffic_rx.setText (Textformater.getdatasize (trafficstats.getuidrxbytes (UID));
      Holder.tv_traffic_tx.setText (Textformater.getdatasize (trafficstats.getuidtxbytes (UID));
    return view;
    } static class viewholder{ImageView Iv_traffic_icon;
    TextView Tv_traffic_name;
    TextView Tv_traffic_tx;
  TextView Tv_traffic_rx;

 }
}

Traffic_manager.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android= "http://schemas.android.com/apk/res/" Android "Android:layout_width=" Match_parent "android:layout_height=" match_parent "android:orientation=" "Vertical" &
  Gt
      <tablelayout android:layout_width= "fill_parent" android:layout_height= "wrap_content" > <TableRow Android:layout_width= "Fill_parent" android:layout_height= "wrap_content" > <textview android:la Yout_width= "0dip" android:layout_height= "Wrap_content" android:layout_weight= "1" android:text= "2G/ 3G total Flow "/> <textview android:id=" @+id/_3gtotal "android:layout_width=" 0dip "Android:lay out_height= "Wrap_content" android:layout_weight= "1"/> </TableRow> <tablerow Android:lay Out_width= "Fill_parent" android:layout_height= "wrap_content" > <textview android:layout_width= "0 Dip "Android:layout_height= "Wrap_content" android:layout_weight= "1" android:text= "WiFi Total traffic"/> <textview and Roid:id= "@+id/wifitotal" android:layout_width= "0dip" android:layout_height= "Wrap_content" Android: layout_weight= "1"/> </TableRow> </TableLayout> <slidingdrawer android:id= "@+id/ll_sd_traffi
    C "Android:layout_width=" Match_parent "android:layout_height=" match_parent "android:content=" @+id/content "
      Android:handle= "@+id/handle" android:orientation= "vertical" > <imageview android:id= "@id/handle" Android:layout_width= "Wrap_content" android:layout_height= "wrap_content" android:src= "@drawable/notification "/> <listview android:id=" @id/content android:layout_width= "Fill_parent" Android:layout_heig

 ht= "Fill_parent" > </ListView> </SlidingDrawer> </LinearLayout>

Traffic_manager_item.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android= "http://schemas.android.com/apk/res/" Android "Android:layout_width=" Match_parent "android:layout_height=" wrap_content "android:gravity=" Center_ Vertical "android:orientation=" horizontal "> <imageview android:id=" @+id/iv_traffic_icon "Android:layout" _width= "0dip" android:layout_height= "Wrap_content" android:layout_weight= "1" android:src= "@drawable/ic_launche R "/> <textview android:id=" @+id/tv_traffic_name "android:layout_width=" 0dip "android:layout_height=" W Rap_content "android:layout_weight=" 1 "android:gravity=" Center_horizontal "android:text=" name "/> <TextV Iew android:id= "@+id/tv_traffic_tx" android:layout_width= "0dip" android:layout_height= "Wrap_content" Andro id:layout_weight= "1" android:gravity= "center_horizontal" android:text= "Upload/> <textview" android:id= Id/tv_traffic_rx "android:layout_width="0dip" android:layout_height= "Wrap_content" android:layout_weight= "1" android:gravity= "Center_horizontal"

 android:text= "Download"/> </LinearLayout>

Traffic_title.xml

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android= "http://schemas.android.com/apk/res/" Android "Android:layout_width=" Match_parent "android:layout_height=" wrap_content "android:gravity=" Center_ Vertical "android:orientation=" horizontal "> <textview android:layout_width=" 0dip "android:layout_height = "Wrap_content" android:layout_weight= "1" android:gravity= "center_horizontal" android:text= "icon"/> Xtview android:layout_width= "0dip" android:layout_height= "Wrap_content" android:layout_weight= "1" android: Gravity= "Center_horizontal" android:text= "name"/> <textview android:layout_width= "0dip" Android:layout_
  height= "Wrap_content" android:layout_weight= "1" android:gravity= "center_horizontal" android:text= "Upload"/> <textview android:layout_width= "0dip" android:layout_height= "Wrap_content" android:layout_weight= "1" an Droid:gravity= "Center_horizontal" Android:text= "Download"/> </LinearLayout>

 

More interested readers of Android-related content can view this site: "Introduction to Android Development and advanced Course", "Android Communication Summary", "Android Basic Components Usage Summary", "Android View Summary", " Android Layout layout Tips and a summary of the use of Android controls

I hope this article will help you with the Android program.