activity_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <TextView
        android:id="@+id/activityTitleTextview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView 
        android:id="@+id/receivedTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:layout_below="@id/activityTitleTextview"
        android:hint="Received text will come here..."
        android:textAppearance="?android:attr/textAppearanceMedium"/>
	
    
    
    
    
    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        >

        <Button
            android:id="@+id/returnOkBtn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/return_ok_label" />

        <Button
            android:id="@+id/returnStringBtn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/return_string_label" />
    </LinearLayout>
    
    <EditText
        android:id="@+id/resultStringEdittext"
        android:layout_width="match_parent" 
        android:layout_height="wrap_content"
        android:layout_above="@id/linearLayout1"
        android:layout_marginBottom="20dp"
        android:hint="@string/result_string_hint"
        />
    
</RelativeLayout>

activity_main.xml

<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:text="@string/main_activity_label"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/sendTextEdittext"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/textView1"
        android:layout_marginTop="38dp"
        android:ems="10"
        android:hint="@string/send_text_hint"
         >
    </EditText>

    <CheckBox
        android:id="@+id/sendTextCheckbox"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/sendTextEdittext"
        android:text="@string/send_text" />
    
    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginTop="20dp" >

        <Button
            android:id="@+id/startActivity2Btn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/start_activity_2" />

        <Button
            android:id="@+id/startActivity3Btn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/start_activity_3" />
    </LinearLayout>

    <TextView
        android:id="@+id/resultText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/sendTextCheckbox"
        android:layout_marginTop="20dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:typeface="monospace"
        android:hint="@string/resultTextPlaceholder" />

</RelativeLayout>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Intent Demo</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="main_activity_label">Main Activity</string>
    <string name="start_activity_2">Start Activity #2</string>
    <string name="start_activity_3">Start Activity #3</string>
    <string name="send_text">Send text to started Activity</string>
    <string name="send_text_hint">Type anything</string>
    <string name="activity_title">This is Activity #%1$s</string>
    <string name="resultTextPlaceholder">Result will come here...</string>
    <string name="received_text">Received text: %1$s</string>
    <string name="return_ok_label">Return OK</string>
    <string name="return_string_label">Return String</string>
    <string name="result_string_hint">Type result string...</string>

</resources>