Here you will get program for quick sort in C++. Quick Sort is one of the most efficient sorting algorithm whose best, worst and average case time complexities are O (n log n), O (n2) and O (n log n) respectively. How it works? 1. We first pick a pivot element. There are various ways …
Here you will learn about android pull or swipe down to refresh using SwipeRefreshLayout example. You may have seen the pull to refresh feature in apps like Facebook, Twitter, Gmail, etc. We can implement that in android using SwipeRefreshLayout widget. How to Implement? Add SwipeRefreshLayout widget in your layout xml file with only one child. …
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This is android admob tutorial. AdMob is an ad network by Google that allows to monetize mobile apps. In this tutorial I will guide you to integrate admob in android app. Here you will learn about two types of ads. Banner Ad: It occupies a small portion of activity. Interstitial Ad: Occupies full screen. Generally shown while …
In this tutorial you will learn to build an android real time chat application using firebase database. Before reading this tutorial I hope you are already familiar with basic read and write operations on firebase. If you don’t know then I would recommend you to follow below link to get basic overview about firebase. Read: https://firebase.google.com/docs/database/android/start/ …
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In this tutorial I will show you 4 different ways to get current date in android. For doing this we will use Calendar, Date, SimpleDateFormate and System class. How to Get Current Date in Android? Method 1: In this method we will use Calendar and SimpleDateFormate class. SimpleDateFormat sdf = new SimpleDateFormat(“dd/MM/yyyy”); Calendar c = …
In this tutorial you will get android date picker example. DatePickerDialog is used to show a dialog to pick a date. To show a DatePickerDialog call showDialog() with unique DatePickerDialog id. onCreateDialog() method is automatically called on calling showDialog() method. Register OnDateSetListener with DatePickerDialog and override onDateSet() method. onDateSet() contains the picked date. I am setting …
In this tutorial you will learn how to create a round button in android. Shape drawable resource is used to define shape of a view. Below I have shared an example to to make a circle button. Android Round Button Example Create a xml file inside res/drawable folder. round_button.xml <?xml version=”1.0″ encoding=”utf-8″?> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”oval”> …
In this tutorial you will learn how to convert image to base64 string or base64 string to image in android. Base64 is an encoding schema that represents binary data in an ASCII string. It becomes really helpful in case you want to upload image to server or save the image in database. How It Works? …
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