activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="24dp"
    tools:context="com.example.ramesh.camera.MainActivity">

    <TextView
        android:id="@+id/headerText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Simple Weather"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textStyle="bold"
        android:layout_centerHorizontal="true" />

    <EditText
        android:id="@+id/cityInput"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/headerText"
        android:layout_marginTop="24dp"
        android:hint="Enter a city name"
        android:inputType="textCapWords" />

    <Button
        android:id="@+id/fetchWeatherButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/cityInput"
        android:layout_marginTop="16dp"
        android:layout_centerHorizontal="true"
        android:text="Get Weather" />

    <ProgressBar
        android:id="@+id/loadingIndicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/fetchWeatherButton"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="12dp"
        android:visibility="gone" />

    <TextView
        android:id="@+id/weatherResult"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/loadingIndicator"
        android:layout_marginTop="16dp"
        android:text="Enter a city to see the current weather."
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>