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Mobile Development Articles
Page 101 of 156
How do I display the current date and time in an iOS application?
Playing with date and time is very important in any programming language, it becomes more important if you’re developing mobile application.Numerous application such as weather, forecast, gaming and so on uses date and time. In this we will be seeing how we can get the current date and time.To get the current date and time we will be using timeIntervalSince1970 instance property, you can read about it https://developer.apple.com/documentation/foundation/nsdate/1407504-timeintervalsince1970So copy the below code in your viewDidLoad method and run the application, we will be printing the current date and time, and based on requirement we can print the same in UILabel ...
Read MoreHow can I set an icon for my iOS application?
Every app needs a beautiful and memorable icon that attracts attention in the App Store and stands out on the Home screen. Your icon is the first opportunity to communicate, at a glance, your app’s purpose. It also appears throughout the system, such as in Settings and search results.Here we will be seeing how we can set icon for iOS Application but before that we should make sure and understand that Every app must supply small icons for use on the Home screen and throughout the system once your app is installed, as well as a larger icon for display ...
Read MoreSet Border for an ImageView in iOS?
Setting border for image view is easy, In this post we will see how to set Border for an Image View in iOS.Let’s get started.Step 1 − Open Xcode → New Project → Single View Application → Let’s name it “BorderToImage”We will create an image view and a button in our storyboard on tap of button we will add border to image view. We could do the same in viewDidLoad but to see the difference we’re doing this.Step 2 − In Main.storyboard add an image view and a button as shown below.Step 3 − Create @IBOutlet for image and name ...
Read MoreWhere and how to use static variable in swift?
Before we see where and how to use static variable, let us first understand, What is static variable in swift?Static VariableStatic variables are those variables whose values are shared among all the instance or object of a class. When we define any variable as static, it gets attached to a class rather than an object. The memory for the static variable will be allocation during the class loading time.Let us understand above figure, we have a class Sample and it has two object s1 and s2. You see s1 and s2 both have their variable “a” separately but they have ...
Read MoreHow do I prevent an iOS device from going to sleep mode?
When most apps have no touches as user input for a short period, the system puts the device into a "sleep” state where the screen dims. This is done for the purposes of conserving power.Preventing iOS Device from going to sleep is easy, navigate to your Settings → Display & Brightness → Autolock, select never.This will never lock your screen.If you’re developing an iOS Application and you’re required to implement this feature, you should use isidletimerdisabled provided by apple, to read more about it https://developer.apple.com/documentation/uikit/uiapplication/1623070-isidletimerdisabledIn your viewDidLoad method write the following line of code to prevent the device from going to ...
Read MoreHow to Ping External host from Swift in iOS?
Sometime you may require to ping an external website and check whether it’s up and running before you do any processing or fire request on the same.Here we will be seeing how to check whether the external website is up and running.Let’s being by Creating new projectStep 1 − Open Xcode → New Project → Single View Application → Let’s name it “PingMe”Step 2 − Open ViewController.swift and add the function checkIsConnectedToNetwork() and add the following code.func checkIsConnectedToNetwork() { let hostUrl: String = "https://google.com" if let url = URL(string: hostUrl) { var request = URLRequest(url: ...
Read MoreAndroid Notification Example with Vibration, Sound, Action and Big View Styles
This example demonstrate about Android Notification Example with Vibration, Sound, Action and Big View StylesStep 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.javapackage app.tutorialspoint.com.notifyme; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.support.v4.app.NotificationCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { private final static String default_notification_channel_id = "default"; @Override protected void onCreate (Bundle ...
Read MoreHow to group android notifications like whatsapp?
This example demonstrate about How to group android notifications like whatsappStep 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.javapackage app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.content.Context ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; import android.widget.Button ; public class MainActivity extends AppCompatActivity { public static final String NOTIFICATION_CHANNEL_ID = "10001" ; private final ...
Read MoreHow to make notification intent resume rather than making a new intent?
This example demonstrate about How to make notification intent resume rather than making a new intentStep 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.javapackage app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.app.PendingIntent ; import android.content.Context ; import android.content.Intent ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; import android.widget.Button ; public class MainActivity extends AppCompatActivity { ...
Read MoreHow to open last activity when tapping on Android notification?
This example demonstrate about How to open last activity when tapping on Android notificationStep 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.javapackage app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.app.PendingIntent ; import android.content.Context ; import android.content.Intent ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; import android.widget.Button ; public class MainActivity extends AppCompatActivity { public static ...
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