Android Example-Advanced XML layout Design

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#dafce3"
    android:orientation="vertical"
    android:baselineAligned="true">
    <!-- nesting up of layouts to align 2 text views parrel to each other by using a seperate linear layout for them -->
    <EditText
        android:id="@+id/editText1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:text="Edit Text"
        android:textColor="@android:color/background_dark">

        <requestFocus />
    </EditText>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#f8f1c5"
        android:orientation="horizontal"
        android:paddingBottom="20dp"
        android:weightSum="2">

        <TextView
            android:id="@+id/textView1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_weight="1"
            android:text="Large Text"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:background="#00fe0d" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_weight="1"
            android:text="Large Text"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:background="#ff0000" />
    </LinearLayout>

    <RadioButton
        android:id="@+id/radioButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="40dp"
        android:text="RadioButton" />

    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:text="Button" />

</LinearLayout>

MainActivity.java

package in.kantapp.example16;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}