学步园

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：

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