Mobile Development Articles - Page 26 of 156

This example demonstrates how to create scrollable TextView on 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 androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.text.method.ScrollingMovementMethod import android.widget.TextView class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       val textView: TextView = findViewById(R.id.textView)   ... Read More

This example demonstrates how to connect to a Wi-Fi network on Android programmatically 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.content.Context import android.net.wifi.WifiManager import android.os.Bundle import android.widget.Switch import android.widget.TextView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity @Suppress("DEPRECATION") class MainActivity : AppCompatActivity() {    private lateinit var wifiButton: Switch    lateinit var textView: TextView    lateinit var wifiManager: ... Read More

This example demonstrates how to create a custom Progress Bar 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 androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.ProgressBar class MainActivity : AppCompatActivity() {    lateinit var progressBar:ProgressBar    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       progressBar = ... Read More

This example demonstrates how to check internet connection availability and the network type on 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.content.Context import android.net.ConnectivityManager import android.os.Bundle import android.widget.TextView import android.widget.Toast 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

AndroBugs Framework is an Android vulnerability analysis system that helps developers or hackers find potential security vulnerabilities in Android applications. We share our personal data through mobile apps if they are not secure its mean we not secured, let start Find vulnerability of android Mobile App - App security. Through this we can...find vulnerability in Appcheck the codeDangerous shell commandcollect information of appRequirementsBasic knowledge of LinuxApp which you testKali Linux MachineNow clone the Androbug – Framework. This framework is android vulnerability scanner tool; This tool is help-full for hacker and android penetration tester.git clone https://github.com/AndroBugs/AndroBugs_Frameworkgitcd AndroBugs_Frameworkpython androbugs.py -f /root/Desktop/Secure.apk -o ... Read More

Android Debug Bridge (adb) is a versatile command-line tool that lets you communicate with a device. The ADB is typical, used to communicate with a smartphone, tablet, smartwatch, set-top box, or any other device that can run the Android operating system. We can do things on an Android device that may not be suitable for everyday use, like, install apps outside of the Play Store, debug apps, access hidden features, and bring up a UNIX shell, etc. For security reasons, Developer Options need to be unlocked and you need to have USB Debugging Mode enabled as well. Not only that, ... Read More

This example demonstrates how to write a custom adapter for my list view on 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.content.Context import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.BaseAdapter import android.widget.ListView import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    lateinit var listView: ListView    var arrayList: ArrayList = ArrayList()    var adapter: MyAdapter? = ... Read More

This example demonstrates how to show current progress while downloading a file on Android App 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.view.View import android.webkit.WebView import android.widget.ProgressBar import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() {    lateinit var webView: WebView    lateinit var progressBar: ProgressBar    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)     ... Read More

The Bluetooth network technology connects mobile devices wirelessly using short-wavelength, ultra-high frequency (UHF) radio waves over a short range to form a personal area network (PAN). Data is transferred between the Bluetooth devices as data frames. Two basic frame formats are defined, for transmitting data at basic data rate and for transmitting data at enhanced data rate.Bluetooth Frame Format with Basic Data RateA Bluetooth frame with basic rate has three parts, access code, header and data as shown in the following diagram−The various fields are−Access Code− A 72-bit field containing synchronization bits to identify the master.Header− A 54-bit field containing ... Read More

Bluetooth link layers define two types of data links, Asynchronous Connection-Less (ACL) Link, being one of them. It is the type of link used for transmission of general data packets using Bluetooth connection. ACL is a point – to – multipoint link used for irregular traffic between a master device and one or more slave devices.Features of Bluetooth ACL linksACL is a packet oriented link, i.e. the link establishes a packet – switched network.ACL is used for transmission of data traffic which are delivered at irregular intervals, where maintaining data integrity is more important than the time latency.Both symmetric and ... Read More