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Mobile Development Articles
Page 89 of 156
How to get the differences between two dates in iOS?
Getting difference between two dates is easy. You should know how to play between the dates.We will be using DateFormatter class for formatting the dates.Instances of DateFormatter create string representations of NSDate objects, and convert textual representations of dates and times into NSDate objects.You can read more about it here https://developer.apple.com/documentation/foundation/dateformatterWe will also be using Calendar structure, apple has provided beautiful documentation of it, https://developer.apple.com/documentation/foundation/calendarSo let’s get started.Open Xcode, New Playground.Copy the below codeimport UIKit // create object of DateFormatter and Calendar let formatter = DateFormatter() let calendar = Calendar.current // specify the format, formatter.dateFormat = "dd-MM-yyyy" // specify the start ...
Read MoreHow to use both front and back cameras simultaneously in iOS?
As of now, there’s no way you can access both front and back cameras simultaneously. As both cameras have different session, as soon as one will start other session will die.As per the apple developer forum answered by Apple support team −“Apps cannot capture from the front and back cameras simultaneously. You can switch from one to the other (with a short delay between) but not both at the same time”
Read MoreHow do I create a TableView with rounded corners in iOS?
Table View is one of the most important and fundamental part of iOS application, Every iOS developer should be familiar with it.Almost every application you see in App store use table view.Table views on iOS display a single column of vertically scrolling content, divided into rows. Each row in the table contains one piece of your app’s content. For example, the Contacts app displays the name of each contact in a separate row, and the main page of the Settings app displays the available groups of settingsYou can read more about table view here, https://developer.apple.com/documentation/uikit/uitableviewIn this post we will see ...
Read MoreHow to detect user pressing HOME key in iOS?
It is very important to know when user is pressing home key as it puts the application to background, here we will be seeing how to identify or get a call when user presses home key.In you AppDelegate.swift, there are delegates methods.Open your AppDelegate.swift and in applicationWillResignActive(_ application: UIApplication) and applicationDidEnterBackground(_ application: UIApplication), write print statement and put a breakpoint as shown.Run the application, once the app is launch tap the home button, applicationWillResignActive will be called and then applicationDidEnterBackground.
Read MoreHow to pick up and hung up calls in android?
This example demonstrates how do I pick up and hung up calls 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. Step 3 − Add the following code to src/MainActivity.javaimport android.Manifest; import android.content.pm.PackageManager; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
Read MoreHow to use Radio button in Android?
This example demonstrates how do I use Radio button 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. Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.Toast; public class MainActivity extends AppCompatActivity { RadioGroup radioGroup; RadioButton radioButton; Button button; @Override protected void onCreate(Bundle savedInstanceState) { ...
Read MoreHow can I set a Border for an ImageView in Android?
This example demonstrates how do I can I set a border for an ImageView 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 projectStep 2 − Add the following code to res/layout/activity_main.xml. Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } }Step 4 − Create a layout from in res/layout and add the ...
Read MoreHow do I create a listView with rounded corners in Android?
This example demonstrates how do I create a listView with rounded corners 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. Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.ListView; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ListView listView = findViewById(R.id.listView); ...
Read MoreHow to open a website in Android's web browser from any application?
This example demonstrates how do I open a website in Android’s web browser from any application.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.javaimport android.content.Intent; import android.net.Uri; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = ...
Read MoreHow to create multiple styles inside a TextView in Android?
This example demonstrates how do I create multiple styles inside a TextView 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. Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.Html; import android.text.Spanned; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView textView1, textView2, textView3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
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