A cryptocurrency, crypto-currency, or crypto is a binary data designed to work as a medium of exchange wherein individual coin ownership records are stored in a ledger existing in a form of computerized database using strong cryptography to secure transaction records, to control the creation of additional coins and to…

Many of the people find it very difficult to Learn to code, and at the end they just give up coding. So, in this article we will read some steps to easily and quickly learn programming:

1. Learn by doing. Always play with the code while learning

My Idea on a Safe and Peaceful Cyber Space…

Cyber safety is always on the priority of the people of the internet whether it be 2010 or 2021, but the only change that has took place in the last 11 years is the increasing number of hacking and data breaching.

What is Cyber attack?

In computers or computer networks an attack is any…

The new activity includes a blank layout file. Follow these steps to add a text view to where the message appears:

1. Open the file app > res > layout > activti_display_message.xml.
2. Click Enable Autoconnect to Parent in the toolbar. This enables Autoconnect.
3. In the Palette panel, click Text, drag a…

To create second activity, follow these steps:

1. In the Project window, right-click app folder and select New > Activity > Empty Actvity.
2. In the Configure Activity window, enter “DislayMessageActivity” for Activity Name. Leave all the other properties set to their defaults and click Finish.

Android Studio automatically does three things:

• Create DisplayMessageActivity file.
• Create the layout file activity_display_message.xml, which corresponds with the DisplayMessageActivity file.
• Adds the required <activity> element in AndroidManifest.xml.

If you run the app and tap on the button on the first activity, the second activity starts but is empty. This is because the second activity uses the empty layout provided by the template.

An Intent is an object that provides runtime binding between separate components, such as two activities. The Intent represents an app’s intent to do something. You can use intents fora a wide varity of tasks, but in this lesson, your intent starts another activity.

In MainActivity, add the EXTRA_MESSAGE constant…

Respond to the Send Button

Follow these steps to add a method to the MainActivity class that’s called when the Send button is tapped:

1. In the file app > java > com.example.myfirstapp > MainActivity, add the following sendMessage() method stub:

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); …

To create a layout that’s responsive to different screen sizes, you need to make the text box stretch to fill the horizontal space that remains after the button and margins are accounted for.

Before you continue, click (Select Design Surface) in the toolbar and select Blueprint.

To make the text…