Android Kotlin Webview Tutorials Part #5

Welcome To Parho Likho CS. You are learing Android Kotlin WebView (Android webveiew) tutorials.
Using Android WebView you are able to build a native application (app) from your websites.
Android webview is very easy to learn and develop.
in this series we learn all basic and advance thing related to android webview ,after this tutorials are able to build native app for android
Android Kotlin WebView
One more step to become advance Developer

Big features
Splash screen
Navgiation bottom
Alert Menu choice
Internet connection checker
Online Video
Download video
String arrays

—–Basic thing you learn
how to create project in android studio
learn about API levels
Create Activity
menifest files
learn about how to add splash screen
learn how to add permissions
how to get permission from user on run time application
learn about creating layout in xml
learn style.xml file how can add and remove any style
learn about string.xml and make string arrays
learn about how to create alert box , alert box + menu + choice option
learn about how to handle back and forward button , onPressBack onPressForward
learn about Bottom navgiation menu and add multple menus
learn about toolbar and how can add own toolbar according to requirement
and more others thing.

Android WebView document

—- Professional Tutorial + Beginners + mid Level Tutorials learn everything about Android Kotlin
Android Kotlin Programming tutorials

Android Kotlin SQLite Database tutorials

Android Kotlin Tutorials SQLite Database basic, a complete guide from everyone,
learn how to use #SQLite Database in android using #Kotlin programming language.
it is a very useful database from application development, everyone should learn it.
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Android Kotlin Tutorials for beginners

Android Kotlin ReyclerView tutorials

Android Kotlin Application Development – PHOTO APP Completed

Android Kotlin Design Tutorials make UI UX User interface

Android Kotlin Web Service Tutorials PHP MYSQLi JSON

Android Kotlin Firebase auth , Login register tutorials for beginners

Androd Kotlin Anko

Android Kotlin Silder or Intro Screen for Application tutorials

C++ Programming tutorials

—-End tutorials—
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Channel: Clever Programmer
Published: 2018-01-29 17:51:03
Duration: 10M25S
Views: 1191008
Likes: 18745
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Learn how to parallel park. The easiest video lesson (by Parking Tutorial)

More details about parallel parking (starting position etc):
Learn how to parallel park close to the curb from parallel parking experts. This short video shows a simple procedure for parallel parking between two cars that involves using reference points.
According to these points the driver can turn the steering wheel at the right moment and parallel park the car. Please note that this method of parallel parking is only suitable for short parking spaces.

Parking Tutorial is an educational film, which contains easy to understand lessons about all the parking methods and exercises. Download Parking Tutorial here:

Channel: ParkingTutorial
Published: 2015-12-27 09:07:35
Duration: 2M49S
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What is an API? – Application Programming Interface

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Channel: Easy Tech Tips
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HTTP Basics – Networking with Android, Android Studio, and Kotlin

Learn about basic concepts of HTTP requests, JSON, using REST APIs and consuming responses, and use the Postman REST client to investigate the GitHub API.

Watch the full course over here:

About is a website focused on developing high quality programming tutorials. Our goal is to take the coolest and most challenging topics and make them easy for everyone to learn – so we can all make amazing apps.

We are also focused on developing a strong community. Our goal is to help each other reach our dreams through friendship and cooperation. As you can see below, a bunch of us have joined forces to make this happen: authors, editors, subject matter experts, app reviewers, and most importantly our amazing readers!

In addition to providing standard network connectivity, Android provides APIs to let your app connect and interact with other devices with protocols such as Bluetooth, NFC, Wi-Fi P2P, USB, and SIP.

Perform network operations overview

This class explains the basic tasks involved in connecting to the network, monitoring the network connection (including connection changes), and giving users control over an app’s network usage. It also describes how to parse and consume XML data.

By going through these lessons, you’ll have the fundamental building blocks for creating Android applications that download content and parse data efficiently, while minimizing network traffic.

Connect to the network

Design secure network communication
Before you add networking functionality to your app, you need to ensure that data and information within your app stays safe when transmitting it over a network. To do so, follow these networking security best practices:

Minimize the amount of sensitive or personal user data that you transmit over the network.

Send all network traffic from your app over SSL.

Consider creating a network security configuration, which allows your app to trust custom CAs or restrict the set of system CAs that it trusts for secure communication.

For more information on applying secure networking principles, see Android’s networking security tips.

Choose an HTTP client

Most network-connected Android apps use HTTP to send and receive data. The Android platform includes the HttpsURLConnection client, which supports TLS, streaming uploads and downloads, configurable timeouts, IPv6, and connection pooling.

Introduce network operations on a separate thread

To avoid creating an unresponsive UI, don’t perform network operations on the UI thread. By default, Android 3.0 (API level 11) and higher requires you to perform network operations on a thread other than the main UI thread; if you don’t, a NetworkOnMainThreadException is thrown.

The following Activity snippet uses a headless Fragment to encapsulate asynchronous network operations. Later, you will see how the Fragment implementation, NetworkFragment, accomplishes this. Your Activity should also implement the DownloadCallback interface, allowing the fragment to call back to the Activity in case it needs connectivity status or needs to send an update back to the UI.

Implement a headless fragment to encapsulate network operations

Since the NetworkFragment runs on the UI thread by default, it uses an AsyncTask to run the network operations on a background thread. This Fragment is considered headless because it doesn’t reference any UI elements. Instead, it is only used to encapsulate logic and handle lifecycle events, leaving the host Activity to update the UI.

When using a subclass of AsyncTask to run network operations, you must be cautious that you don’t create a memory leak in the case where the Activity that is referenced by the AsyncTask is destroyed before the AsyncTask finishes its background work. To ensure this doesn’t happen, the following snippet clears any references to the Activity in the Fragment’s onDetach() method.

Use HttpsUrlConnection to fetch data

In the snippet above, the doInBackground() method runs in a background thread and calls the helper method downloadUrl(). The downloadUrl() method should take the given URL and use it to perform an HTTP GET request. Once a connection has been established, you should use the method getInputStream() to retrieve the data as an InputStream.

Convert InputStream to a string

An InputStream is a readable source of bytes. Once you get an InputStream, it’s common to decode or convert it into a target data type.

Survive configuration changes

So far, you have successfully implemented an Activity that performs a network operation. But, if the user decides to change the device configuration (i.e. rotate the screen 90 degrees) while doInBackground() is running on the background thread, the Activity destroys and recreates itself, causing it to re-run onCreate() and reference a new NetworkFragment (see Runtime Changes guide).

Published: 2018-08-13 14:24:46
Duration: 3M25S
Views: 61
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Dependency Injection

This week, we’re going to talk about the topic of Dependency Injection in Object oriented code (specifically PHP). You don’t need a fancy container to do it, it’s actually quite simple to do manually!


Channel: Anthony Ferrara
Published: 2013-01-08 03:29:18
Duration: 4M47S
Views: 442152
Likes: 6028
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