纯java解析安卓apk包名与版本号

package com.apk.test; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import org.xmlpull.v1.XmlPullParser; import android.content.res.AXmlResourceParser; import android.util.TypedValue; /** * 分析APK文件，取得APK文件中的 包名、版本号及图标 */ public class AnalysisApk { /** * 解压 zip 文件(apk可以当成一个zip文件)，注意不能解压 rar 文件哦，只能解压 zip 文件 解压 rar 文件 会出现 * java.io.IOException: Negative seek offset 异常 create date:2009- 6- 9 author:Administrator * @param apkUrl * zip 文件，注意要是正宗的 zip 文件哦，不能是把 rar 的直接改为 zip 这样会出现 java.io.IOException: * Negative seek offset 异常 * @throws IOException */ public static String[] unZip(String apkUrl) { //[0]:版本号;[1]包名 String[] st = new String[2]; byte b[] = new byte [1024]; int length; ZipFile zipFile; try { zipFile = new ZipFile( new File(apkUrl)); Enumeration enumeration = zipFile.entries(); ZipEntry zipEntry = null ; while (enumeration.hasMoreElements()) { zipEntry = (ZipEntry) enumeration.nextElement(); if (zipEntry.isDirectory()) { } else { if("AndroidManifest.xml".equals(zipEntry.getName())) { try { AXmlResourceParser parser=new AXmlResourceParser(); parser.open(zipFile.getInputStream(zipEntry)); while (true) { int type=parser.next(); if (type==XmlPullParser.END_DOCUMENT) { break; } switch (type) { case XmlPullParser.START_TAG: { for (int i=0;i!=parser.getAttributeCount();++i) { if("versionName".equals(parser.getAttributeName(i))){ st[0] = getAttributeValue(parser,i); }else if("package".equals(parser.getAttributeName(i))){ st[1] = getAttributeValue(parser,i); } } } } } } catch (Exception e) { e.printStackTrace(); } } } } } catch (IOException e) { // TODO Auto-generated catch block //e.printStackTrace(); } return st; } private static String getAttributeValue(AXmlResourceParser parser,int index) { int type=parser.getAttributeValueType(index); int data=parser.getAttributeValueData(index); if (type==TypedValue.TYPE_STRING) { return parser.getAttributeValue(index); } if (type==TypedValue.TYPE_ATTRIBUTE) { return String.format("?%s%08X",getPackage(data),data); } if (type==TypedValue.TYPE_REFERENCE) { return String.format("@%s%08X",getPackage(data),data); } if (type==TypedValue.TYPE_FLOAT) { return String.valueOf(Float.intBitsToFloat(data)); } if (type==TypedValue.TYPE_INT_HEX) { return String.format("0x%08X",data); } if (type==TypedValue.TYPE_INT_BOOLEAN) { return data!=0?"true":"false"; } if (type==TypedValue.TYPE_DIMENSION) { return Float.toString(complexToFloat(data))+ DIMENSION_UNITS[data & TypedValue.COMPLEX_UNIT_MASK]; } if (type==TypedValue.TYPE_FRACTION) { return Float.toString(complexToFloat(data))+ FRACTION_UNITS[data & TypedValue.COMPLEX_UNIT_MASK]; } if (type>=TypedValue.TYPE_FIRST_COLOR_INT && type<=TypedValue.TYPE_LAST_COLOR_INT) { return String.format("#%08X",data); } if (type>=TypedValue.TYPE_FIRST_INT && type<=TypedValue.TYPE_LAST_INT) { return String.valueOf(data); } return String.format("<0x%X, type 0x%02X>",data,type); } private static String getPackage(int id) { if (id>>>24==1) { return "android:"; } return ""; } /////////////////////////////////// ILLEGAL STUFF, DONT LOOK :) public static float complexToFloat(int complex) { return (float)(complex & 0xFFFFFF00)*RADIX_MULTS[(complex>>4) & 3]; } private static final float RADIX_MULTS[]={ 0.00390625F,3.051758E-005F,1.192093E-007F,4.656613E-010F }; private static final String DIMENSION_UNITS[]={ "px","dip","sp","pt","in","mm","","" }; private static final String FRACTION_UNITS[]={ "%","%p","","","","","","" }; }