Android files from network

Android: динамически подгружаем фрагменты из сети

В этой статье мы рассмотрим, как загружать классы (в том числе, фрагменты) из сети во время выполнения программы, и использовать их в своем Android-приложении. Область применения подобной технологии на практике — это отдельная тема для разговора, мне же сама по себе реализация данной функциональности показалась довольно интересной задачей.

Создаем фрагмент

Для начала создадим некий фрагмент Fragment0 и реализуем у него метод onCreateView():

Стандартный метод создания разметки из xml в нашем случае работать не будет, поэтому для первого фрагмента мы создаем ее программно.

Далее нам нужно на основе модуля, содержащего фрагмент, создать APK, распаковать его с помощью unzip, и выложить файл classes.dex на сервер.

Реализуем загрузку классов

В отдельном модуле создадим класс NetworkingActivity и реализуем в нем следующие методы:

Открываем из фрагмента другие фрагменты

Для этого в классе LoadableFragment (суперкласс всех наших фрагментов) реализуем следующий метод:

Надеюсь, здесь все понятно.

Наш следующий фрагмент мы попробуем создать несколько иначе.

Подгружаем из сети xml-разметку

Для начала, создаем и выкладываем на сервер файл разметки. Я нашел на github библиотеку, которая умеет парсить xml layout из строки. Для корректной работы пришлось ее немного подпилить.

И так, добавим в наш класс LoadableFragment следующие методы:

Теперь с помощью этого всего создадим фрагмент Fragment1:

Послесловие

Полностью исходный код проекта можно посмотреть на github. Готовый APK можно скачать здесь.

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5 Ways to Transfer Files from Android to PC via WiFi

One of the problems you often get hit with is how to transfer files from your Android to your PC. Plugging your Android device straight into your computer with a USB to transfer files may come first to your mind. But that is not versatile enough. Today, using Wi-Fi network and a browser to export files from Android devices to the computer is more popular for its ease of use.

This post will take you through five simple-to-use Android apps for wireless file transfer between your Android phone and your PC. Read through the article to find the one that works for you.

1. WiFi File Transfer

WiFi File Transfer is a light-weight Android app that allows you to easily transfer files between your Android phone and your PC without a USB cable. It can be freely downloaded from the Google Play Store. With this helpful app, you can upload and download multiple files at once and manage your Android files, such as delete, rename, copy, zip or unzip files.

Here’s how to transfer files from Android to PC with WiFi File Transfer.

1) Download and install WiFi File Transfer on your Android phone

2) Click Setting to set an access password for protected connection if you are using a public network

3) Press the Start button to get an IP address, click OK

4) Type the given address in a web browser on your computer to access your Android files

5) Select the files you want to export, then click Download to download the files

Now you can browse and manage files from your Android device. And to close down access to your files, simply click the Stop button in the WiFi File Transfer app on your Android phone.

Note: Both your Android phone and PC should connect the same local network. And for the free version, there is a 5MB per file transfer limit. If you want to transfer larger files, you can try the Pro version.

2. Droid Transfer

Droid Transfer is another option for Android users who desire easy mobile-to-PC files transfer and the ability to manage files between Android and PC. Not only photos, contacts, files, but also messages can be transferred from Android to PC wirelessly via this tool. Text messages will be saved as PDF, HTML, TXT files and the photos, emojis, and videos inside the messages can be saved on PC, too.

This Windows application works alongside a free app, Transfer Companion. To transfer files from Android devices to PC, you need to install Droid Transfer on your computer and Transfer Companion on your Android devices and make sure your computer and Android device connect the same Wi-Fi network.

• Download and install Droid Transfer on your PC, then run the application
• Get the Transfer Companion app from Google Play Store on your Android device
• Tap the Scan Droid Transfer QR Code button on Transfer Companion app to read the Droid Transfer QR code

• Select the file you want to transfer from your Android device, and click Copy to PC in Droid Transfer
• Choose a save location on your PC to save your Android file and confirm the save

Note: If you want to transfer multiple files from your Android phone to PC at a time, hold down the Shift key and use your mouse to choose the files. Or, if you want to copy all your Android files to PC, simply use the Ctrl+A keyboard shortcut to select all the files.

3. AirDroid

AirDroid is one of the best files transfer apps for Android. It supports transferring almost all kinds of files, including SMS, Calls, Notification, Contacts and more, freely from Android phone to PC in multiple platforms wirelessly. It is able to transfer files whether your Android device connects the same Wi-Fi network or not. What’s more, you can also share files with your friends who also use AirDroid, nearby or a thousand miles away.

You can read the instructions below to learn how to use AirDroid wirelessly transfer files from Android to PC.

• Turn on Wi-Fi connection

Connect your Android device and PC with the same Wi-Fi network. Do this simply by matching the same name on the connection.

• Download and Install AirDroid

First, go to Google Play Store to access AirDroid on your device. Search the one that made by the developers Sand Studio and then tap Install to install the application.

• Open AirDroid on Your Android device

You can sign in with your Google, Facebook or Twitter account when opening the AirDroid app you’ve installed. And then read through the on-screen introductions until you see the Connection Tab on the app. Get the IP address and enter into the address bar in a web browser on your PC. Then tap Accept to confirm the request when a toast pops up on your phone.

• Transfer file from Android to PC with AirDroid

Once connected, click the File icon on your PC and a file browser will open. Next, find the files you want to transfer in the file explorer on the website and then click the Download button to transfer files from phone to PC.

4. Pushbullet

Like AirDroid, Pushbullet can freely transfer files from Android to PC and vice versa via WiFi. If you don’t fancy AirDroid or Droid Transfer, Pushbullet is the best alternative. It can not only transfer files but also receive and view notifications of your phone on your computer. Begin by installing the Pushbullet app on your desktop and Android device, both require an account to sign in. And remember connecting two devices with the same WiFi network.

• Launch the Pushbullet app and tick Allow to let the app access your Android files
• Click the menu button, represented by three vertical lines, on your phone, and select Pushing
• Tap the paperclip icon, then select the file you want to transfer to PC, then hit the Send button

Now you can see the file appears in the Windows app next to the name of the transferring device.

Note: If you don’t pay for a Pushbullet Pro membership, your maximum size-per-file transfer is limited to 25MB and other additional benefits will not accessible. But whether to pay for a subscription depends on your needs.

5. Xender

Xender is an application that helps you transfer files from Android to PC via Wi-Fi easily and freely in different platforms. It can transfer any type of file with flash speed. You are able to transfer anything you want, such as documents, music, videos and more without restrictions. More importantly, there is no limitation on transferring large files. Pretty cool! And I think you may eager to learn how to transfer files from your Android to your PC with Xender, keep reading and I will show you how to do that.

1) Download and install Xender on Android device
2) Open the app and tap on the cursor symbol at the bottom right of the screen on your phone. If yours is not the same, please update your Xender to v3.1.
3) After step 2, the following interface will pop up, click PC/Mac

4) Open a web browser on your computer and go to the web.xender.com
5) Tap Scan on your phone to scan the QR code on your web browser.

Your Android device now should be connected to your PC, and you can transfer files between two devices.

That’s all about the article. And if you have any question with the steps listed above, welcome to leave your comments and we will respond as quickly as possible.

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How to Set­up and Use FTP Serv­er on Android

Mehvish

26 Feb 2018

There are many ways to transfer data from your Android device to PC. For instance, you can use the traditional USB method, Bluetooth, or apps like Xender and ShareIt. But, do you know that you can also transfer files from your Android device to PC or vice versa using File Transfer Protocol (FTP)?

FTP is a network protocol for transferring files from one location to another on the Internet. The two locations in FTP are referred to as Client and a Server. The Client requests the files from a Server.

File transfer using FTP can take place between two computers, one mobile device and a computer, or a cloud account and a computer.

You may have heard the term FTP when someone is talking about a website. We usually use FTP to transfer website files from our computer to the hosting server. However, it can also be used to transfer files between two local computers or any other two devices connected via the same network.

In this post, we’ll tell you how to use FTP on your Android phone to transfer files to PC.

FTP on Mobile

FTP is a simple way to transfer files from your Android device – mobile or tablet – to a PC wirelessly on a local network. Here, your Android device acts as a server and your PC is the client.

This method doesn’t require any USB cable or even Bluetooth. The only requirement for FTP on Android is that your Android device and PC should be connected to the same Wi-Fi network. If you don’t have the same Wi-Fi network, you can create a hotspot and then use FTP.

Please keep in mind, Wi-Fi connections or same network doesn’t mean that you should have a working Internet connection. They are generally used alternatively but they differ in their meaning. Even if the Internet is not working and you’re connected to the same Wi-Fi network, you can still use FTP to transfer files.

Things to do With FTP on Android

You can use FTP for three things:

1. To access your Android phone’s files on your PC via Wi-Fi without using USB
2. To send and receive files between Android and PC
3. You can also perform actions such as copy, move, delete, rename, etc. on your Android files from your PC.

How to Use FTP on Android

To transfer files between an Android device and a Windows PC via FTP, you need to download a third-party FTP server from Google Play Store on your Android device. Some brands like Mi have a built-in FTP feature. We have given the detailed instructions separately for Mi devices below.

For other Android devices, follow the steps below:

Step 1. Download a Third-party FTP App

As mentioned above, you need to have an FTP app on your Android. Some file explorers such as ES File Explorer and Solid Explorer come with a built-in FTP feature. The steps will remain the same for all the apps with minor differences in the location of the options.

If you have a File Manager app that has FTP, you don’t need to download a separate app. But, if you’re looking for an FTP app, here are some easy-to-use choices:

For our tutorial, we will go with the WiFi FTP server app. It’s one of the easiest FTP apps.

Step 2. Connect to the Same Wi-Fi Network

Once you have installed an FTP app on your Android device, connect your Android device and PC to the same Wi-Fi network.

Step 3. Start FTP Service

Open the WiFi FTP server app on your device. Tap the Start button.

The app will ask for the permission to access your media files. Grant it the necessary permission.

Step 4. Open the FTP Link on Your PC

Once you tap the Start button, the FTP app will provide you an FTP URL or a server URL. It would be something like ftp://111.111.1.1:1111.

You can now access the Android files on your PC using three methods:

1. Browser
2. File Explorer
3. FTP application like FileZilla

Your Android files can be easily accessed via any browser like Google Chrome. However, you won’t be able to upload or perform any action using this method. You can only download your Android files to PC.

To access files from the Chrome, enter the FTP URL in the address bar of Chrome and press enter.

To perform actions like upload, move or rename, you can use the File Explorer on your PC or download an FTP application like FileZilla. For regular users, Windows Explorer would be sufficient, so we’ll focus on that only.

Open Windows Explorer on your PC and enter the FTP URL in the address bar of Windows Explorer. Hit Enter.

All your Android device files will now be shown on your PC. You can now download, upload, move, copy or rename the Android files from your PC.

This is one of the easiest ways to transfer files from Android to PC and vice-versa. Once you are connected and you want to receive newly-created files on Android to your PC, just hit the refresh button on your PC.

How to Secure FTP Connection

You might have noticed that we didn’t enter any username or password in the above steps. To make the connection private and secure, you can set the username and password for your FTP connections.

On every FTP app, you’ll find the Anonymous access option. To set username and password, you have to disable this access. It’s usually present in the app settings.

In the WiFi FTP server app that we used above, tap the Settings icon in the top bar. Then, uncheck Anonymous access and enter UserId and Password in the respective boxes.

Now, when you use the FTP link on your PC, you’ll have to enter the same username and password to access the files.

Transfer Files From Redmi Devices to PC Using FTP

Since Redmi devices such as Note 4, Note 5, Mi 5a etc. come with a native FTP feature, you don’t have to install any third-party app. Here are the steps to use FTP on your Mi device.

Step 1: Connect your Mi phone and your computer to the same Wi-Fi network.

Step 2: On your Mi device, locate the Mi Drop app. Open it.

Step 3: In the app, tap the three-dot menu at the top-right corner. From the menu, select Connect to computer.

Step 4: Tap the Start button at the bottom. If you have an SD card installed on your phone, you’ll be asked to select the storage. Tap the storage to select it.

Step 5: You’ll then be given the FTP link. Similar to the steps mentioned above for other Android devices, open Windows Explorer on your PC and write this FTP link in the address bar. Then, press Enter. You’ll now be able to access and modify your phone’s storage.

How to Secure FTP Connection on Mi Phone

To secure FTP connection on your Mi device, follow these steps:

Step 1: Tap the small Setting icon at the top-right corner on the Connect to computer page of Mi Drop.

Step 2: Turn the Sign in anonymously option off. You will be asked to set the username and password. Simple, isn’t it?

The above method works for MIUI 9. In the earlier MIUI versions, the FTP feature was present in the Mi File Explorer. In case you have a phone with MIUI 8, only the location of the FTP option is different, the rest of the steps remain the same.

Why Use FTP on Mobile

FTP is better than the traditional USB data cable because, first of all, if you don’t have a cable handy or you have misplaced it, you can always use FTP to transfer data on the same local network. In simple words, bid adieu to USB cable for file transfer.

Moreover, the Wi-Fi data transfer speed is comparatively uniform and faster. Plus, you can connect your Android device to multiple devices (computer or another Android device) at the same time.

Now that you know the benefits of using FTP, would you switch to FTP method to transfer files from Android to PC? Let us know in comments below.

Last updated on 19 Apr, 2018
The above article may contain affiliate links which help support Guiding Tech. However, it does not affect our editorial integrity. The content remains unbiased and authentic.

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