Android版本更新器"文件丢失问题"

XML code

<!-- 安装解包权限 --><uses-permission android:name="android.permission.INSTALL_PACKAGES"></uses-permission>

Java code

public File write2SDFromInput(String dir ,String fileName,InputStream input){                  File file = null;                  OutputStream output = null;                  try {                      createSDDir(dir);                                        file = createSDFile(dir,fileName);                      output = new FileOutputStream(file);                      byte[] buffer = new byte[FILESIZE];                    int length;                    int currentLength = 1;                    int times = 0;                                        while((length = input.read(buffer)) != -1){                          output.write(buffer, 0, buffer.length);                        currentLength += length;                        if( times > 100 || currentSchedule == fileLength){                            times = 0;                            currentSchedule = currentLength * 100 / fileLength;                            mHandler.sendEmptyMessage(4);                        }                        times ++;                    }                      output.flush();                  }                   catch (Exception e) {                      e.printStackTrace();                  }                  finally{                      try {                          output.close();                      } catch (IOException e) {                          e.printStackTrace();                      }                  }                  return file;              } 

XML code

12-02 14:24:36.856: WARN/PackageParser(5669): Unable to read AndroidManifest.xml of /sdcard/hxp/hxpai.apk12-02 14:24:36.856: WARN/PackageParser(5669): java.io.FileNotFoundException: AndroidManifest.xml12-02 14:24:36.856: WARN/PackageParser(5669):     at android.content.res.AssetManager.openXmlAssetNative(Native Method)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.content.res.AssetManager.openXmlBlockAsset(AssetManager.java:469)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.content.res.AssetManager.openXmlResourceParser(AssetManager.java:437)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.content.pm.PackageParser.parsePackage(PackageParser.java:370)12-02 14:24:36.856: WARN/PackageParser(5669):     at com.android.packageinstaller.PackageUtil.getPackageInfo(PackageUtil.java:79)12-02 14:24:36.856: WARN/PackageParser(5669):     at com.android.packageinstaller.PackageInstallerActivity.onCreate(PackageInstallerActivity.java:291)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.ActivityThread.access$2200(ActivityThread.java:119)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.os.Handler.dispatchMessage(Handler.java:99)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.os.Looper.loop(Looper.java:123)12-02 14:24:36.856: WARN/PackageParser(5669):     at android.app.ActivityThread.main(ActivityThread.java:4363)12-02 14:24:36.856: WARN/PackageParser(5669):     at java.lang.reflect.Method.invokeNative(Native Method)12-02 14:24:36.856: WARN/PackageParser(5669):     at java.lang.reflect.Method.invoke(Method.java:521)12-02 14:24:36.856: WARN/PackageParser(5669):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)12-02 14:24:36.856: WARN/PackageParser(5669):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)12-02 14:24:36.856: WARN/PackageParser(5669):     at dalvik.system.NativeStart.main(Native Method)12-02 14:24:36.876: WARN/PackageInstaller(5669): Parse error when parsing manifest. Discontinuing installation 
 

下载过程中好像是丢失了AndroidManifest.xml文件，请问我下载的方法是不是有问题，如何修改......谢谢了。

[解决办法]
看代码这个应该是没有问题，检查一下打包的时候是不是没有把Manifest.xml打包到hxpai.apk里面去