Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Mobile Development Articles
Page 106 of 156
How to count number of characters in Text box while typing in iOS?
As an iOS developer one should know how to manipulate with text field and it’s operation, Apple has already provided UITextFieldDelegate protocol.To read more about it https://developer.apple.com/documentation/uikit/uitextfielddelegateYou may have seen may application where forms are involved, and you see number of characters you’re entering when you type specially on the forms where characters are restricted to certain count.In this post we’re going to see the same how to display the character count, when you type in TextField.Step 1 − Open Xcode → New Project → Single View Application → Let’s name it “TextFieldCount”Step 2 − Open Main.storyboard and add TextField and ...
Read MoreHow to run a timer in background within your iOS app
If you wish to run a timer in background within your iOS Application, Apple provides beginBackgroundTaskWithExpirationHandler method, you can read more about the same developer.apple.com/documentation/uikit/uiapplication/1623031-beginbackgroundtaskwithexpiration.We will be using the same for writing our code for running the timer in background.So let’s begin.Step 1 − Open Xcode → Single View Application → Let’s name is BackgroundTimer.Step 2 − Open AppDelegate.swift and under method applicationDidEnterBackground write the below code.backgroundTaskIdentifier = UIApplication.shared.beginBackgroundTask(expirationHandler: { UIApplication.shared.endBackgroundTask(self.backgroundTaskIdentifier!) }) _ = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(self.doSomething), userInfo: nil, repeats: true)Step 3 − Write new function doSomething()@objc func doSomething() { print("I'm running") }Finally your code should look like belowfunc applicationDidEnterBackground(_ application: UIApplication) { backgroundTaskIdentifier = UIApplication.shared.beginBackgroundTask(expirationHandler: { ...
Read MoreAndroid stop specified IntentService?
Before getting into the example, we should know what Intent service is in android. Intent Service is going to do background operation asynchronously. When user call startService() from activity, it doesn’t create the instance for each request and it going to stop service after done some action in service class or else we need to stop service manually by using stopSelf().This example demonstrates about Android stop specified IntentService.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 ...
Read MoreHow to update continues ui from Intent Service in Android?
Before getting into example, we should know what is Intent service in android. Intent Service is going to do back ground operation asynchronously. When user call startService() from activity , it doesn’t create instance for each request and it going to stop service after done some action in service class or else we need to stop service manually by using stopSelf().This example demonstrate about How to update continues ui from Intent Service.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 ...
Read MoreHow to create DigitalSpeedDashboard in android?
This example demonstrate about How to create DigitalSpeedDashboard 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 − Open build.gradle and add library dependency as shown below –apply plugin: 'com.android.application' android { compileSdkVersion 28 defaultConfig { applicationId "com.example.andy.myapplication" minSdkVersion 19 targetSdkVersion 28 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } configurations { cleanedAnnotations compile.exclude ...
Read MoreHow to start intent service for every 10 sec's in android?
Before getting into example, we should know what Intent service is in android. Intent Service is going to do back ground operation asynchronously. When user call startService() from activity , it doesn't create instance for each request. It going to stop service after done some action in service class or else we need to stop service using stopSelf().This example demonstrate about How to start intent service for every 10 sec’s.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 ...
Read MoreHow to filter data using where Clause and "NOT IN" in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to filter data using where Clause and “NOT IN” in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and ...
Read MoreHow to filter data using where Clause and "GLOB" in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to filter data using where Clause and “GLOB” in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill ...
Read MoreHow to filter data using where Clause and "IN" in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to filter data using where Clause and “IN” in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill ...
Read MoreHow to filter data using where Clause and "LIKE" in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to filter data using where Clause and “LIKE” in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill ...
Read More