如何使用Java技术实现APK文件的与合并操作？

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Java实现APK、合并及导入示例代码：

javaimport java.io.File;import com.nothome.delta.Delta;import com.nothome.delta.GDiffPatcher;

public class AndroidApkUtils { /** 生成差分包：old_new.patch=diff(old.apk, new.apk) */ public static byte[] generatePatch(String oldApkPath, String newApkPath) { File oldApk=new File(oldApkPath); File newApk=new File(newApkPath); GDiffPatcher patcher=new GDiffPatcher(); byte[] patch=patcher.patch(newApk, oldApk); return patch; }}

java 实现 apk 拆分 合并

import java.io.File; import com.nothome.delta.Delta; import com.nothome.delta.GDiffPatcher; public class AndroidApkUtils { /** * 生成差分包：old_new.patch = diff(old.apk, new.apk) * * */ public static byte[] createPatch(byte source[], byte target[]) { byte [] fs = null; try { Delta d = new Delta(); fs = d.compute(source, target); } catch (Exception e) { e.printStackTrace(); } return fs; } public static void createPatch(byte source[], byte target[], String patchPath, String patchName) { try { Delta d = new Delta(); byte [] fs = d.compute(source, target); FileUtils.getFile(fs, patchPath, patchName); } catch (Exception e) { e.printStackTrace(); } } /** * 合成差分包：new.apk = old.apk + old_new.patch * * */ public static File mergeFile(String source, String patch, String target) throws Exception { GDiffPatcher patcher = new GDiffPatcher(); File deffFile = new File(patch); File updatedFile = new File(target); patcher.patch(new File(source), deffFile, updatedFile); return updatedFile; } public static File mergeApk(String source, String patch, String target, String newApkMd5) throws Exception { File updateFile = mergeFile(source, patch, target); String ufpMd5 = FileMD5Utils.getFileMD5(updateFile); System.out.println("服务端下发的md5:" + newApkMd5 + ",新合并后的apk MD5:" + ufpMd5); if (ufpMd5 == null || !newApkMd5.equalsIgnoreCase(ufpMd5)) { if (updateFile.exists()) { updateFile.delete(); } throw new Exception("MD5错误,不能成功合并!"); } return updateFile; } }