Android--获取安装的程序信息_gesturestartactivity-优快云博客

本文链接：https://blog.youkuaiyun.com/shaojie519/article/details/6839745

本文详细介绍了如何使用Android软件的信息存储在PackageInfo中，包括应用名称、包标签、版本信息和图标信息的获取与展示，通过源码分析实现对安装包的管理与展示。

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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;

 

@Override

public 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;
	}

	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return pkInfos.size();
	}

	@Override
	public Object getItem(int arg0) {
		// TODO Auto-generated method stub
		return pkInfos.get(arg0);
	}

	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}

	@Override
	public 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;
	}
}

}