Java 获取APK安装程序的包名核心的两个类：

 ResPackage
 ApkDecoder 

package com.temobi.util;

import java.io.File;

import java.util.Set;

import brut.androlib.AndrolibException;

import brut.androlib.ApkDecoder;

import brut.androlib.res.data.ResPackage;

public class APKUtil {

	public static String getAPKPageName(String apkpath) {

		ApkDecoder d = new ApkDecoder();

		d.setApkFile(new File(apkpath));

		try {

			Set p = d.getResTable().listMainPackages();

			for (ResPackage r : p) {// 这里set最大只会等于1

				return r.getName();

			}

		} catch (AndrolibException e) {

			e.printStackTrace();

		}

		return null;

	}

	public static void main(String[] args) {

		System.err.println("The APK  packname is : "+APKUtil.getAPKPageName("d:/UCBrowser_V8.7.0.187_Android_pf145_(Build12101613).apk"));

	}

}