text box, text label, button

Displaying a text given by the user using text box, text label, and button

File name: MainActivity.kt

package com.example.displaytext

import android.app.Activity

import android.os.Bundle

import android.view.View

import android.widget.Button

import android.widget.EditText

import android.widget.TextView

class MainActivity: Activity() {

var mButton: Button? = null

var mEdit: EditText? = null

var mText: TextView? = null

public override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

setContentView(R.layout.activity_main)

mButton = findViewByld<View>(R.id.button1) as Button

mButton!!.setOnClickListener {

mEdit = findViewByld<View>(R.id.editText1) as EditText

mText = findViewByld<View>(R.id.textView1) as TextView

mText!!.text = "Hello" + mEdit!!.text.toString() + "!"

}

}

File name: activity_main.xml

<RelativeLayout android layout width="409dp"

android:layout_height="354dp"

xmlns:tools="http://schemas.android.com/tools"

tools:layout editor_absoluteX="1dp"

tools:layout_editor_absoluteY="1dp"

tools:ignore="MissingConstraints"

xmlns:android="http://schemas.android.com/apk/res/android">

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content" android:layout_alignParentTop="true"

android:layout_center Horizontal="true"

android:text="@string/empty"

an

an

an

an

an

ar

android:textAppearance="?android:attr/textAppearanceLarge" ar

android:textColor="#A4C639" />

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_alignParentStart="true"

android:layout_below="@+id/textView1"

android:layout_marginTop="23dp" android:text="Enter your name"

android:textAppearance="?android:attr/textAppearanceMedium"

android:textColor="#0099FF" />

<EditText

android:id="@+id/editText1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignBottom="@+id/textView2"

android:layout_toRightOf="@+id/textView2"

android:background="#CCCCCC"

android:ems="10"

android:hint="@string/app_name"

android:inputType="textPersonName"

android:minHeight="48dp">

<requestFocus />

</EditText>

<Button

android:id="@+id/button1"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_below="@+id/textView2"

android:layout_alignParentLeft="true"

android:layout_marginTop="20dp" android:background="#0099FF"

android:text="Ok"

android:textColor="#3E2723" />

</RelativeLayout>

File name: strings.xml

<resources> <string name="app_name">App 7</string> <string name="empty" />

</resources>