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IP (Internet Protocol) Address is an address of your network hardware. It helps in connecting your computer to other devices on your network and all over the world. An IP Address is made up of numbers or characters.All devices that are connected to an internet connection have a unique IP address which means there’s a need of billions of IP addresses. This requirement is fulfilled by the new IP version IPv6.Private IP AddressA private IP address is the address of your device connected on the home or business network. If you have a few different devices connected to one ISP ... Read More
The WebClient class provides common methods for sending data to or receiving data from any local, intranet, or Internet resource identified by a URI.The WebClient class uses the WebRequest class to provide access to resources. WebClient instances can access data with any WebRequest descendant registered with the WebRequest.RegisterPrefix method.DownloadString Downloads a String from a resource and returns a String.If your request requires an optional header, you must add the header to the Headers collectionExampleIn the below example we are calling the url "https://jsonplaceholder.typicode.com/posts"The example is then deserialized to User arrayFrom the user array we are printing the first array valueExampleclass ... Read More
The [] operator is called an indexer.An indexer allows an object to be indexed such as an array. When you define an indexer for a class, this class behaves similar to a virtual array. You can then access the instance of this class using the array access operator ([ ]).Indexers can be overloaded. Indexers can also be declared with multiple parameters and each parameter may be a different type. It is not necessary that the indexes have to be integers.Example 1static void Main(string[] args){ IndexerClass Team = new IndexerClass(); Team[0] = "A"; Team[1] = "B"; Team[2] ... Read More
There are many ways to check whether internet is connected to a machine in C# or not. Make use of System.Net namespace which provides common methods for sending data to and receiving data from a resource identified by a URI. The WebClient or HttpClient class provides common methods for sending data to or receiving data from any local, intranet, or Internet resource identified by a URI. Here in the below example we have used (OpenRead)Returns the data from a resource as a Stream.Checks by hitting the url "http://google.com/generate_204" if success return true else false.The below example runs in the loop ... Read More
This example demonstrates how to set the color of TextView span in Android using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.graphics.Color import android.os.Bundle import android.text.SpannableString import android.text.Spanned import android.text.style.ForegroundColorSpan import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var textView:TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ... Read More
This example demonstrates how to parse HTML in Android using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the given dependency in the build.gradle (Module: app)implementation 'org.jsoup:jsoup:1.11.2'Step 4 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.widget.Button import android.widget.TextView import androidx.appcompat.app.AppCompatActivity import org.jsoup.Jsoup import org.jsoup.nodes.Document import org.jsoup.select.Elements import java.io.IOException class MainActivity : AppCompatActivity() { lateinit var button: Button lateinit var textView: TextView ... Read More
This example demonstrates how to create a Custom Ratingbar in Android using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.widget.Button import android.widget.RatingBar import android.widget.RatingBar.OnRatingBarChangeListener import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var ratingBar: RatingBar lateinit var button: Button lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { ... Read More
This example demonstrates how to detect application heap size in Android using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.app.ActivityManager import android.content.Context import android.os.Bundle import android.view.View import android.widget.TextView import androidx.appcompat.app.AppCompatActivity import java.util.* class MainActivity : AppCompatActivity() { private lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ... Read More
This example demonstrates how to open a Facebook page from an Android app using KotlinStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.content.Intent import android.net.Uri import android.os.Bundle import android.view.View import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) } fun fbClick(view: View) { startActivity(getOpenFacebookIntent()); ... Read More
This example demonstrates how to restart an Android Activity using Kotlin.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.ktimport android.os.Bundle import android.widget.Button import android.widget.TextView import androidx.appcompat.app.AppCompatActivity import java.util.* class MainActivity : AppCompatActivity() { lateinit var textView: TextView lateinit var button: Button var random: Random = Random() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) ... Read More