在自动更新过程中安装旧版本

如何解决在自动更新过程中安装旧版本

这是我的自动更新代码。我使用 Amazon S3。

我觉得通过 CDN 更新真的很不安全。现在我在安装新版本时遇到问题。

我在同一个存储桶和文件夹中上传了 1.0.14、1.0.15、1.0.16 版本。

我测试了这些更新。但是，当我测试 1.0.16 时，我当前的版本是 1.0.15（由 adb 安装）并显示更新弹出窗口，但是当我更新时它安装了 1.0.14。

我尝试删除应用程序的缓存和 S3 文件夹的版本。但是没有用。

当我通过文件资源管理器检查设备时，它似乎创建了较旧的 apk .. URL 和它的文件名很好。但我不知道。这是怎么回事。

    private class DownloadTask(context: Context) : AsyncTask<String,Int,String?>() {
        var context: Context? = context
        var mWakeLock: PowerManager.WakeLock? = null

        //set destination
        val fileName = NetworkConstants.APK_NAME
        var destination = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            "${context.getExternalFilesDir(null)}/$fileName"
        } else {
            "${Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)}/$fileName"
        }

        override fun doInBackground(vararg params: String?): String? {
            var input: InputStream? = null
            var output: OutputStream? = null
            var connection: HttpURLConnection? = null

            try {
                val url = URL(params[0])
                connection = url.openConnection() as HttpURLConnection
                connection.connect()

                // expect HTTP 200 OK,so we don't mistakenly save error report
                // instead of the file
                if (connection.responseCode != HttpURLConnection.HTTP_OK) {
                    return "Server returned HTTP ${connection.responseCode}\n${connection.responseMessage}"
                }

                // this will be useful to display download percentage
                // might be -1: server did not report the length
                val fileLength = connection.contentLength

                // download the file
                input = connection.inputStream
                output = FileOutputStream(destination)

                val data = ByteArray(4096)

                var total = 0
                var count = 0

                while ({ count = input.read(data); count }() != -1) {
                    // allow canceling with back button
                    if (isCancelled) {
                        input.close()
                        return null
                    }
                    total += count

                    // publishing the progress...
                    if (fileLength > 0) {
                        // only if total length is kNown
//                        Log.d("download","${total}/${count}/${fileLength}")
                        publishProgress(total,fileLength)
                    }
                    output.write(data,count)
                }
            } catch (e: Exception) {
                return e.toString()
            } finally {
                try {
                    output?.close()
                    input?.close()
                } catch (e: IOException) {
                    e.printstacktrace()
                }
                connection?.disconnect()
            }
            return null
        }

        override fun onProgressUpdate(vararg values: Int?) {
            super.onProgressUpdate(*values)
            // if we get here,length is kNown,Now set indeterminate to false
            mProgressDialog!!.isIndeterminate = false
            mProgressDialog!!.max = values[1] as Int
            mProgressDialog!!.progress = values[0] as Int
        }

        override fun onPreExecute() {
            super.onPreExecute()
            // take cpu lock to prevent cpu from going off if the user
            // presses the power button during download
            val pm = context!!.getSystemService(Context.POWER_SERVICE) as PowerManager
            mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,javaClass.name)
            mWakeLock!!.acquire() // no need to set time
            mProgressDialog!!.show()

            deleteApk()
        }

        override fun onPostExecute(result: String?) {
            mWakeLock?.release()
            mProgressDialog?.dismiss()

            if (result != null) {
                Toast.makeText(context,"Update Failed: $result",Toast.LENGTH_LONG).show()
                MyApplication.getInstance().restartOne()
            } else {
                Toast.makeText(context,"Updating...",Toast.LENGTH_SHORT).show()
                val file = File(destination)
                installApk(file)
            }
        }

        fun installApk(file: File) {
            val uri = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                Log.d("test",BuildConfig.APPLICATION_ID)
                FileProvider.getUriForFile(
                        context!!,"${BuildConfig.APPLICATION_ID}.fileprovider",file
                )
            } else {
                Uri.fromFile(file)
            }

            val intent = Intent(Intent.ACTION_VIEW).apply {
                setDataAndType(uri,"application/vnd.android.package-archive")
                addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
            }
            context!!.startActivity(intent)
            (context as EntryActivity).overridePendingTransition(
                    R.anim.abc_fade_in,R.anim.abc_fade_out
            )
            (context as EntryActivity).finish()
        }

        /**
         * Delete PDF_FINDER apk for
         */
        private fun deleteApk() {
            val fileName = NetworkConstants.APK_NAME
            val destination = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                "${context!!.getExternalFilesDir(null)}/$fileName"
            } else {
                "${Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)}/$fileName"
            }
            val file = File(destination)
            if (file.exists()) {
                file.delete()
            }
        }

我想使用相同的名称，这样它就不会多次下载并且一个应用程序有一百个apk。我不确定我是否正确删除。