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  we will learn, how to build a simple countdown timer, which shows the remaining time in minutes and seconds. It will have a start/pause button and a reset button which is only visible, if the timer is not running. For this, we will use the CountDownTimer interface and override the onTick and onFinish methods. We will set it’s time in milliseconds and format those milliseconds to minutes and seconds using the String.format method. Start a new Empty Project -> Add these lines of codes in activity_main.xml file:- <? xml version ="1.0" encoding ="utf-8" ?> < RelativeLayout xmlns: android ="http://schemas.android.com/apk/res/android" xmlns: app ="http://schemas.android.com/apk/res-auto" xmlns: tools ="http://schemas.android.com/tools" android :layout_width ="match_parent" android :layout_height ="match_parent" tools :context =".MainActivity" > < TextView androi...

we will learn how to create a circular progress bar in Android Studio that displays the current progress value and has a gray background color. I will also show you how you can customize this progress bar further and add things like a color gradient effect. After successful Empty activity creation add these lines of code in the files:- Add a circle.xml file in Drawable folder and add these lines of codes:- <? xml version ="1.0" encoding ="utf-8" ?> < layer-list xmlns: android ="http://schemas.android.com/apk/res/android" > < item > < shape android :shape ="ring" android :thicknessRatio ="16" android :useLevel ="false" > < solid android :color ="#DDD" /> </ shape > </ item > < item > < rotate android :fromDegrees ="270" android :toDegrees ="270...

In this tutorial we will learn, how to add a bottom navigation to your activity and use it to switch between different fragments. We will fill our BottomNavigationView with 3 menu items and then check which item was selected with the OnNavigationItemSelectedListener interface and a switch statement. We will then create the appropriate fragment and display it in a FrameLayout with help of the getSupportFragmentManager, beginTransaction and replace methods. Link & Dependencies:- developer.android.com/topic/libraries/support-library/packages.html#design Add a directory in res folder and name it as menu. After adding menu folder in res folder add a xml file and name it bottom_navigation.xml. <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/nav_home" android:icon="@drawable/ic_home_black_24dp" android:titl...