36, get the application icon and the corresponding software name, using the GridView way to show

------------------------------Main.java--------------------------

Package Com.example.rfe;


Import java.util.ArrayList;
Import Java.util.HashMap;
Import Java.util.Iterator;
Import java.util.List;
Import Java.util.Map;


Import Android.app.ProgressDialog;
Import Android.content.pm.ApplicationInfo;
Import Android.content.pm.PackageManager;
Import android.graphics.drawable.Drawable;
Import Android.os.Bundle;
Import Android.os.Handler;
Import Android.os.Message;
Import android.support.v7.app.ActionBarActivity;
Import Android.util.Log;
Import Android.view.View;
Import Android.view.ViewGroup;
Import Android.widget.BaseAdapter;
Import Android.widget.GridView;
Import Android.widget.ImageView;
Import Android.widget.TextView;


/**
* Get the installed software name and the package name of the software, which can be used to open another application
*
* @author Administrator
*
*/
public class Mainactivity extends Actionbaractivity implements Runnable {


list<map<string, object>> list = null;
Private ProgressDialog PD;
Private Packagemanager Packagemanager;
GridView List_home;
@Override
public void OnCreate (Bundle icicle) {
Super.oncreate (Icicle);
Setcontentview (R.layout.activity_main);
Settitle ("Software Information");
List_home = (GridView) Findviewbyid (r.id.list_home);
PD = Progressdialog.show (This, "Please wait ...", "Collecting information on software you have installed ...", true,
FALSE);
Thread thread = new thread (this);
Thread.Start ();
}


private void Refreshlistitems () {
List = Fetch_installed_apps ();
Myadapter myadapter = new Myadapter ();
List_home.setadapter (Myadapter);
Set the title of Actionbar!!
Settitle ("Software information, already installed" + list.size () + "application.");
}


Public List Fetch_installed_apps () {
list<applicationinfo> packages = Getpackagemanager ()
. getinstalledapplications (0);
List = new arraylist<map<string, object>> (Packages.size ());
iterator<applicationinfo> L = packages.iterator ();
Packagemanager = Getpackagemanager ();
while (L.hasnext ()) {
map<string, object> map = new hashmap<string, object> ();
ApplicationInfo app = (applicationinfo) l.next ();
drawable drawable = App.loadicon (Packagemanager);
String label = "";
try {
label = Getpackagemanager (). Getapplicationlabel (APP). toString ();
} catch (Exception e) {
LOG.I ("Exception", e.tostring ());
}
Map = new hashmap<string, object> ();
Map.put ("name", label);
Map.put ("ico", drawable);
List.add (map);
}
return list;
}


@Override
public void Run () {
Fetch_installed_apps ();
Handler.sendemptymessage (0);
}


Private Handler Handler = new Handler () {
public void Handlemessage (Message msg) {
Refreshlistitems ();
Pd.dismiss ();
}
};



Private class Myadapter extends baseadapter{


@Override
public int GetCount () {
return List.size ();
}

@Override
Public View GetView (int position, View Convertview, ViewGroup parent) {
View view = View.inflate (mainactivity.this, r.layout.list_item, NULL);
ImageView Iv_item = (ImageView) View.findviewbyid (R.id.iv_item);
TextView Tv_item = (TextView) View.findviewbyid (R.id.tv_item);

Tv_item.settext ((charsequence) list.get (position). Get ("name"));
Drawable drawable = (drawable) list.get (position). Get ("ico");
Iv_item.setimagedrawable (drawable);
return view;
}


@Override
Public Object getItem (int position) {
return null;
}


@Override
public long getitemid (int position) {
return 0;
}

}
}

。。。。。。。。。。。。 Main.xml ......

<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
android:orientation= "vertical" android:layout_width= "fill_parent"
android:layout_height= "Fill_parent" >




<gridview
Android:id= "@+id/list_home"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
android:layout_margintop= "15dip"
Android:numcolumns= "3"
android:verticalspacing= "10dip"/>
</LinearLayout>

。。。。。。。。。。。。。 List_item.xml .........

<?xml version= "1.0" encoding= "Utf-8"?>
<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:gravity= "Center"
android:orientation= "Vertical" >


<imageview
Android:id= "@+id/iv_item"
Android:layout_width= "60dip"
android:layout_height= "60dip"
android:src= "@drawable/ic_launcher"/>


<textview
Android:id= "@+id/tv_item"
Android:textcolor= "#000000"
Android:textsize= "16SP"
android:text= "mobile phone anti-theft"
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"/>


</LinearLayout>

36, get the application icon and the corresponding software name, using the GridView way to show