Android以编程方式安装apk错误-包解析错误

我在我的页面上创建了一个Edittext，允许用户通过下载apk并安装来更新应用程序。我正在使用loojp库来处理异步任务

我在活动中的代码：

f0textupdate.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(final View view) {
            try {
                view.setEnabled(false);
                final ProgressBar f0progress = (ProgressBar) findViewById(R.id.f0progress);
                f0progress.setProgress(0);
                mHttpClient.get("http://google.com/apps.apk", new FileAsyncHttpResponseHandler(lastcreated) {

                    @Override
                    public void onSuccess(int i, Header[] headers, File file) {
                        //sendBroadcast(new Intent(Intent.ACTION_INSTALL_PACKAGE, Uri.fromFile(file)));
                        try {
                            String path = file.getParent()+"/"+ CfgMain.siteid+ ".apk";
                            File dst = new File(path);
                            if (!dst.exists()) {
                                try {
                                    dst.createNewFile();
                                } catch (IOException e) {
                                    e.printStackTrace();
                                }
                            }

                            InputStream in = new FileInputStream(file);
                            OutputStream out = new FileOutputStream(dst);

                            // Transfer bytes from in to out
                            byte[] buf = new byte[1024];
                            int len;
                            while ((len = in.read(buf)) > 0) {
                                out.write(buf, 0, len);
                            }
                            in.close();
                            out.close();

                            Intent installIntent = new Intent();
                            installIntent.setAction(Intent.ACTION_INSTALL_PACKAGE);
                            installIntent.setDataAndType(Uri.fromFile(dst), "application/vnd.android.package-archive");
                            installIntent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true);
                            installIntent.putExtra(Intent.EXTRA_RETURN_RESULT, true);
                            installIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                            startActivity(installIntent);

                        } catch (FileNotFoundException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }

                    @Override
                    public void onFailure(int i, Header[] headers, Throwable throwable, File file) {
                        if (file.exists()) {
                            file.delete();
                        }
                    }

                    @Override
                    public void onProgress(long bytesWritten, long totalSize) {
                        int totProgress = (int) (((float) bytesWritten * 100) / totalSize);
                        if (totProgress > 0) {
                            f0progress.setVisibility(View.VISIBLE);
                            f0progress.setProgress(totProgress);
                        }
                    }

                });
            } catch (Exception ex) {

            }

        }
    });

Manifest.xml

   <uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" />
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

它会提示一条错误消息“包解析错误”

1） 下载后是否需要按照原始apk名称转换文件名，因为“文件”似乎暂时存储为没有扩展名的名称

更新1 来自logCat的错误：

05-17 11:17:19.142 4562-4562/？W/zipro﹕ 无法打开zip“/data/data/com.M28/cache/77lori.apk”：权限被拒绝

05-17 11:17:19.152 4562-4562/？W/PackageParser﹕ 无法读取/data/data/com.MMM/cache/MM.apk的AndroidManifest.xml java.io.FileNotFoundException:AndroidManifest.xml

   <uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" />
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

更新1.1 -更改Onsuccess（）的值

• 位于Manifest.xml的附加权限

确定从其他论坛（xamarin）找到一个解决方案并解决我的问题。。 您需要将APK保存到公共目录

例如：

String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)+"/MM.apk";

---

这可能是min sdk版本的问题。如果您尝试在lower sdk上安装，则可能会出现这种类型的错误

ok，我遇到的错误是“无法读取的AndroidManifest.xml…”面临相同的问题。你有什么解决办法吗？