Android--获取安装的程序信息

android软件的信息存储在PackageInfo中，ApplicationInfo主要包括名字、Package标签、版本信息和图标信息,

如图：

源码：

import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.app.Activity;import android.content.Context;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;public class GestureStartActivity extends Activity {private List<PackageInfo> packageInfos; private ListView listView = null; @Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);listView = new ListView(this);packageInfos = getPackageManager().getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES | PackageManager.GET_ACTIVITIES);ListViewAdapter adapter = new ListViewAdapter(GestureStartActivity.this, packageInfos); listView.setAdapter(adapter); setContentView(listView); }class ListViewAdapter extends BaseAdapter {LayoutInflater inflater;List<PackageInfo> pkInfos;public ListViewAdapter(Context context,List<PackageInfo> packageInfos) {inflater = LayoutInflater.from(context);this.pkInfos = packageInfos;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn pkInfos.size();}@Overridepublic Object getItem(int arg0) {// TODO Auto-generated method stubreturn pkInfos.get(arg0);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View view = inflater.inflate(R.layout.lv_item, null);TextView tv_appname = (TextView) view.findViewById(R.id.lv_item_appname);TextView tv_packagename = (TextView) view.findViewById(R.id.lv_item_packageame);ImageView iv = (ImageView) view.findViewById(R.id.lv_icon);//tv.setText(packageInfos.get(position).packageName);tv_appname.setText(pkInfos.get(position).applicationInfo.loadLabel(getPackageManager()));tv_packagename.setText(pkInfos.get(position).packageName);iv.setImageDrawable(pkInfos.get(position).applicationInfo.loadIcon(getPackageManager()));return view;}}}

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