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Mobile Development Articles
Page 123 of 156
How to Use WiFi Direct on Android?
This example demonstrate about How to Use WiFi Direct on AndroidStep 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/WifiDirectBroadcastReceiverpackage com.example.myapplication; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.wifi.p2p.WifiP2pManager; import android.widget.Toast; public class WifiDirectBroadcastReceiver extends BroadcastReceiver { WifiP2pManager wifiP2pManager; WifiP2pManager.Channel channel; MainActivity activity; public WifiDirectBroadcastReceiver(WifiP2pManager wifiP2pManager, WifiP2pManager.Channel channel, MainActivity activity) { this.wifiP2pManager = wifiP2pManager; ...
Read MoreHow to get the MAC address of an iOS/iPhone programmatically?
In iOS versions previous to 7.0 getting the MAC address of device was possible. But with new iOS version it has been disabled for the apps to access MAC address of the device.When it is accessed or requested on current version of iOS it always returns 02:00:00:00:00:00. This has been implemented by apple because of privacy concerns. If your app needs to uniquely identify a device, apple recommends to use UDID/ UUID instead of MAC. In swift we can useUIDevice.current.identifierForVendor Which as per apple documentation says that, The value of this property is the same for apps that come from ...
Read MoreHow to hide the status bar in a iOS App using Swift?
Sometimes in our application, we need to hide the status bar, navigation bar, and other things and only show the content we want to display. In this article, we’ll see how to hide the status bar in our application. To hide status bar in our iOS application using swift language we need to go through very basic steps.We can hide the status bar in two general ways. Both of these methods involve a common step.Common StepGo to Your info.plist file.Add a key called “View controller-based status bar appearance” and set its value to NO.This was a common step we’ll use ...
Read MoreHow to restrict UITextField to take only numbers in Swift?
In iOS apps sometimes we need to restrict our text field to take only numbers as an input, this can be done in several ways, let’s see some of them.Method 1: Changing the Text Field Type from storyboard.Select the text field that you want to restrict to numeric input.Go to its attribute inspector.Select the keyboard type and choose number pad from there.Method 2: Programmatically limiting inputs to number.Select the text fieldCreate its outlet in the view controller.Conform the view controller to UITextFieldDelegateSet the text field’s delegateAdd the following functionfunc textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool ...
Read MoreAdding Navigation Bar programmatically iOS using Swift
To add navigation bar programmatically we’ll go through a series of steps that are mentioned below. We’ll be doing this in ViewWillLayoutSubviews method of our viewController.Getting the width of the current View.let width = self.view.frame.widthCreating a navigation bar with the width of our current view and height of 44 px which is the default height of a navigation bar.let navigationBar: UINavigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: width, height: 44))Adding the newly created navigation bar to our view.self.view.addSubview(navigationBar)We can further extend this example to add a title and a button to our View. The complete result should look something ...
Read MoreHow to dynamically update a ListView on Android
This example demonstrates How to dynamically update a ListView on AndroidStep 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. In the above code, we have taken listview.Step 3 − Add the following code to src/MainActivity.javaHow to dynamically update a ListView on AndroidLet's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's ...
Read MoreHow to get phone number in android?
This example demonstrate about How to get phone number in android.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. In the above code, we have taken text view. When user open application, Phone number going to append on textview.Step 3 − Add the following code to src/MainActivity.java.package com.example.andy.myapplication; import android.Manifest; import android.content.Context; import android.content.pm.PackageManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.telephony.TelephonyManager; import android.widget.TextView; import ...
Read MoreHow to get the duplicates values from Arraylist<String> and then get those items in another Arraylist in Android?
This example demonstrate about How to get the duplicates values from Arraylist and then get those items in another Arraylist.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. In the above code, we have taken listview to show duplication list items from array list.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ArrayAdapter; import android.widget.ListView; import java.util.ArrayList; import java.util.HashSet; import java.util.Set; public class MainActivity extends AppCompatActivity ...
Read MoreHow to use checktextview in android?
Before getting into the example, we should know what checktextview in android is. Check textview is expanded by textview and contains checkable interface. Using Checktextview we can find that, whether a user is clicked on textview or not.This example demonstrate about How to use checktextview in android.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. In the above code, we have taken CheckedTextView, when user clicked on textview, it will ...
Read MoreAndroid Determine App Starts First Time OR Not Programmatically?
This example demonstrates about Android Determine App Starts First Time OR Not Programmatically.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. In the above code, we have taken textview, when user open application, it will check whether it is the first time or not. If first time, it will append first-time text to textview or else it shows more than first-time text.Step 3 − Add the following code to src/MainActivity.javapackage ...
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