How to use httpDownload method of com.example.fuel.MainActivity class

...72        httpPut()73        httpPost()74        httpPatch()75        httpDelete()76        httpDownload()77        httpUpload()78        httpBasicAuthentication()79        httpListResponseObject()80        httpResponseObject()81        httpGsonResponseObject()82        httpCancel()83        httpRxSupport()84        httpLiveDataSupport()85    }86    private suspend fun executeCoroutine() {87        httpGetCoroutine()88    }89    private suspend fun httpGetCoroutine() {90        val (request, response, result) = Fuel.get("/get", listOf("userId" to "123")).awaitStringResponseResult()91        Log.d(TAG, response.toString())92        Log.d(TAG, request.toString())93        update(result)94    }95    private fun httpCancel() {96        val request = Fuel.get("/delay/10")97            .interrupt { Log.d(TAG, it.url.toString() + " is interrupted") }98            .responseString { _, _, _ -> /* noop */ }99        Handler().postDelayed({ request.cancel() }, 1000)100    }101    private fun httpResponseObject() {102        "https://api.github.com/repos/kittinunf/Fuel/issues/1"103            .httpGet()104            .also { Log.d(TAG, it.cUrlString()) }105            .responseObject(Issue.Deserializer()) { _, _, result -> update(result) }106    }107    private fun httpListResponseObject() {108        "https://api.github.com/repos/kittinunf/Fuel/issues"109            .httpGet()110            .also { Log.d(TAG, it.cUrlString()) }111            .responseObject(Issue.ListDeserializer()) { _, _, result -> update(result) }112    }113    private fun httpGsonResponseObject() {114        "https://api.github.com/repos/kittinunf/Fuel/issues/1"115            .httpGet()116            .also { Log.d(TAG, it.cUrlString()) }117            .responseObject<Issue> { _, _, result -> update(result) }118    }119    private fun httpGet() {120        Fuel.get("/get", listOf("foo" to "foo", "bar" to "bar"))121            .also { Log.d(TAG, it.cUrlString()) }122            .responseString { _, _, result -> update(result) }123        "/get"124            .httpGet()125            .also { Log.d(TAG, it.cUrlString()) }126            .responseString { _, _, result -> update(result) }127    }128    private fun httpPut() {129        Fuel.put("/put", listOf("foo" to "foo", "bar" to "bar"))130            .also { Log.d(TAG, it.cUrlString()) }131            .responseString { _, _, result -> update(result) }132        "/put"133            .httpPut(listOf("foo" to "foo", "bar" to "bar"))134            .also { Log.d(TAG, it.cUrlString()) }135            .responseString { _, _, result -> update(result) }136    }137    private fun httpPost() {138        Fuel.post("/post", listOf("foo" to "foo", "bar" to "bar"))139            .also { Log.d(TAG, it.cUrlString()) }140            .responseString { _, _, result -> update(result) }141        "/post"142            .httpPost(listOf("foo" to "foo", "bar" to "bar"))143            .also { Log.d(TAG, it.cUrlString()) }144            .responseString { _, _, result -> update(result) }145    }146    private fun httpPatch() {147        val manager = FuelManager().apply {148            basePath = "http://httpbin.org"149            baseHeaders = mapOf("Device" to "Android")150            baseParams = listOf("key" to "value")151        }152        manager.forceMethods = true153        manager.request(Method.PATCH, "/patch", listOf("foo" to "foo", "bar" to "bar"))154            .also { Log.d(TAG, it.cUrlString()) }155            .responseString { _, _, result -> update(result) }156    }157    private fun httpDelete() {158        Fuel.delete("/delete", listOf("foo" to "foo", "bar" to "bar"))159            .also { Log.d(TAG, it.cUrlString()) }160            .responseString { _, _, result -> update(result) }161        "/delete"162            .httpDelete(listOf("foo" to "foo", "bar" to "bar"))163            .also { Log.d(TAG, it.cUrlString()) }164            .responseString { _, _, result -> update(result) }165    }166    private fun httpDownload() {167        val n = 100168        Fuel.download("/bytes/${1024 * n}")169            .fileDestination { _, _ -> File(filesDir, "test.tmp") }170            .progress { readBytes, totalBytes ->171                val progress = "$readBytes / $totalBytes"172                runOnUiThread { mainAuxText.text = progress }173                Log.v(TAG, progress)174            }175            .also { Log.d(TAG, it.toString()) }176            .responseString { _, _, result -> update(result) }177    }178    private fun httpUpload() {179        Fuel.upload("/post")180            .add {...

1}2}3}4}5}6}7}8}9}10}11}12}

1new Thread(new Runnable() {2    public void run() {3        httpDownload();4    }5}).start();6The above code will create a new thread to download the file. The httpDownload() method is defined in the MainActivity class as shown below:7public void httpDownload() {8    try {9        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();10        urlConnection.setRequestMethod("GET");11        urlConnection.setReadTimeout(15 * 1000);12        urlConnection.connect();13        int fileLength = urlConnection.getContentLength();14        File file = new File(Environment.getExternalStorageDirectory() + "/filename.txt");15        FileOutputStream fileOutput = new FileOutputStream(file);16        InputStream inputStream = urlConnection.getInputStream();17        byte[] buffer = new byte[fileLength];18        int total = 0;19        int count;20        while ((count = inputStream.read(buffer)) != -1) {21            if (isCancelled) {22                inputStream.close();23                return;24            }25            total += count;26            publishProgress(total);

1public String httpDownload(String url) {2    String response = "";3    try {4        URL u = new URL(url);5        HttpURLConnection conn = (HttpURLConnection) u.openConnection();6        conn.setRequestMethod("GET");7        conn.setConnectTimeout(5000);8        conn.setReadTimeout(5000);9        conn.connect();10        int responseCode = conn.getResponseCode();11        if (responseCode == 200) {12            BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());13            File file = new File(getFilesDir(), "downloaded_file.txt");14            FileOutputStream fos = new FileOutputStream(file);15            BufferedOutputStream bos = new BufferedOutputStream(fos);16            byte[] buffer = new byte[1024];