How To Create App for Input a Value and Show it as a Toast message and in a Text box Step 1) Create New Android Project With Empty Activity. Step 2) Add a EditText, a Button and TextView In Design mode To activity_main.xml or Hardcode it . activity_main.xml – Design mode activity_main.xml – Text mode Step 3) Program the App process in MainActivity.java. · Assign the Components. · Click Event. · Get Text , Set Text from EditText to TextView. · Toast Message. MainActivity.java Code: import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public ...