publicclassAppInfo{

privateStringappLabel;
privateDrawableappIcon;
privateIntentintent;
privateStringpkgName;

publicAppInfo(){}

publicStringgetAppLabel(){
returnappLabel;
}
publicvoidsetAppLabel(StringappName){
this.appLabel=appName;
}
publicDrawablegetAppIcon(){
returnappIcon;
}
publicvoidsetAppIcon(DrawableappIcon){
this.appIcon=appIcon;
}
publicIntentgetIntent(){
returnintent;
}
publicvoidsetIntent(Intentintent){
this.intent=intent;
}
publicStringgetPkgName(){
returnpkgName;
}
publicvoidsetPkgName(StringpkgName){
this.pkgName=pkgName;
}

publicclassBrowseApplicationInfoAdapterextendsBaseAdapter{

privateList<AppInfo>mlistAppInfo=null;

LayoutInflaterinfater=null;

publicBrowseApplicationInfoAdapter(Contextcontext,List<AppInfo>apps){
infater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mlistAppInfo=apps;
}
@Override
publicintgetCount(){
//TODOAuto-generatedmethodstub
System.out.println("size"+mlistAppInfo.size());
returnmlistAppInfo.size();
}
@Override
publicObjectgetItem(intposition){
//TODOAuto-generatedmethodstub
returnmlistAppInfo.get(position);
}
@Override
publiclonggetItemId(intposition){
//TODOAuto-generatedmethodstub
return0;
}
@Override
publicViewgetView(intposition,Viewconvertview,ViewGrouparg2){
System.out.println("getViewat"+position);
Viewview=null;
ViewHolderholder=null;
if(convertview==null||convertview.getTag()==null){
view=infater.inflate(R.layout.browse_app_item,null);
holder=newViewHolder(view);
view.setTag(holder);
}
else{
view=convertview;
holder=(ViewHolder)convertview.getTag();
}
AppInfoappInfo=(AppInfo)getItem(position);
holder.appIcon.setImageDrawable(appInfo.getAppIcon());
holder.tvAppLabel.setText(appInfo.getAppLabel());
holder.tvPkgName.setText(appInfo.getPkgName());
returnview;
}

classViewHolder{
ImageViewappIcon;
TextViewtvAppLabel;
TextViewtvPkgName;

publicViewHolder(Viewview){
this.appIcon=(ImageView)view.findViewById(R.id.imgApp);
this.tvAppLabel=(TextView)view.findViewById(R.id.tvAppLabel);
this.tvPkgName=(TextView)view.findViewById(R.id.tvPkgName);
}
}
}

publicclassMainActivityextendsActivityimplementsOnItemClickListener{

privateListViewlistview=null;

privateList<AppInfo>mlistAppInfo=null;

@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.browse_app_list);

listview=(ListView)findViewById(R.id.listviewApp);
mlistAppInfo=newArrayList<AppInfo>();
queryAppInfo();//查询所有应用程序信息
BrowseApplicationInfoAdapterbrowseAppAdapter=newBrowseApplicationInfoAdapter(
this,mlistAppInfo);
listview.setAdapter(browseAppAdapter);
listview.setOnItemClickListener(this);
}
//点击跳转至该应用程序
publicvoidonItemClick(AdapterView<?>arg0,Viewview,intposition,
longarg3){
//TODOAuto-generatedmethodstub
Intentintent=mlistAppInfo.get(position).getIntent();
startActivity(intent);
}
//获得所有启动Activity的信息，类似于Launch界面
publicvoidqueryAppInfo(){
PackageManagerpm=this.getPackageManager();//获得PackageManager对象
IntentmainIntent=newIntent(Intent.ACTION_MAIN,null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
//通过查询，获得所有ResolveInfo对象.
List<ResolveInfo>resolveInfos=pm
.queryIntentActivities(mainIntent,PackageManager.MATCH_DEFAULT_ONLY);
//调用系统排序，根据name排序
//该排序很重要，否则只能显示系统应用，而不能列出第三方应用程序
Collections.sort(resolveInfos,newResolveInfo.DisplayNameComparator(pm));
if(mlistAppInfo!=null){
mlistAppInfo.clear();
for(ResolveInforeInfo:resolveInfos){
StringactivityName=reInfo.activityInfo.name;//获得该应用程序的启动Activity的name
StringpkgName=reInfo.activityInfo.packageName;//获得应用程序的包名
StringappLabel=(String)reInfo.loadLabel(pm);//获得应用程序的Label
Drawableicon=reInfo.loadIcon(pm);//获得应用程序图标
//为应用程序的启动Activity准备Intent
IntentlaunchIntent=newIntent();
launchIntent.setComponent(newComponentName(pkgName,
activityName));
//创建一个AppInfo对象，并赋值
AppInfoappInfo=newAppInfo();
appInfo.setAppLabel(appLabel);
appInfo.setPkgName(pkgName);
appInfo.setAppIcon(icon);
appInfo.setIntent(launchIntent);
mlistAppInfo.add(appInfo);//添加至列表中
}
}
}

<?xmlversion="1.0"encoding="utf-8"?>
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
package="com.qin.appinfo"android:versionCode="1"android:versionName="1.0">
<applicationandroid:icon="@drawable/icon"android:label="@string/app_name">
<activityandroid:name=".MainActivity"android:label="@string/app_name">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>
<categoryandroid:name="android.intent.category.LAUNCHER"/>
<categoryandroid:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"android:layout_height="50dip">

<ImageViewandroid:id="@+id/imgApp"android:layout_width="wrap_content"
android:layout_height="fill_parent"></ImageView>
<RelativeLayoutandroid:layout_width="fill_parent"android:layout_marginLeft="10dip"
android:layout_height="40dip">
<TextViewandroid:id="@+id/tvLabel"android:layout_width="wrap_content"
android:layout_height="wrap_content"android:text="AppLable:"></TextView>
<TextViewandroid:id="@+id/tvAppLabel"android:layout_width="wrap_content"
android:layout_toRightOf="@id/tvLabel"android:layout_height="wrap_content"
android:layout_marginLeft="3dip"android:text="Label"android:textColor="#FFD700"></TextView>
<TextViewandroid:id="@+id/tvName"android:layout_width="wrap_content"
android:layout_height="wrap_content"android:layout_below="@id/tvLabel"
android:text="包名:"></TextView>
<TextViewandroid:id="@+id/tvPkgName"android:layout_width="wrap_content"
android:layout_height="wrap_content"android:layout_below="@id/tvAppLabel"
android:layout_alignLeft="@id/tvAppLabel"android:textColor="#FFD700"></TextView>
</RelativeLayout>
</LinearLayout>

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"android:layout_width="fill_parent"
android:layout_height="fill_parent">>
<ListViewandroid:id="@+id/listviewApp"android:layout_width="fill_parent"
android:layout_height="fill_parent"></ListView>