MyTask layout xml

activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_margin="16dp">

    <!-- place for logo -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:gravity="center">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="MY TASK"
            android:textSize="64sp"/>
    </LinearLayout>

    <!-- place for user input -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:gravity="center">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/userName"
            android:id="@+id/txtUser"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/userPass"
            android:inputType="textPassword"
            android:layout_marginTop="20dp"
            android:id="@+id/txtPass"/>
    </LinearLayout>

    <!-- place for buttons-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal"
        android:gravity="top">
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/register"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:textSize="22sp"
            android:layout_weight="1"
            android:layout_margin="20dp"
            android:id="@+id/btnRegister"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/login"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:textSize="22sp"
            android:layout_weight="1"
            android:layout_margin="20dp"
            android:id="@+id/btnLogin"/>
    </LinearLayout>

</LinearLayout>

---------------------------------------------------

activity_register

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="16dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="2"
        android:orientation="vertical"
       >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="LOGO"
            android:textSize="62sp"
            android:layout_gravity="center"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:layout_margin="30dp">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/regUserName"
            android:hint="Enter a user name..."
            android:layout_weight="1"
            android:gravity="bottom"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/regPass1"
            android:hint="Enter your password...."
            android:layout_weight="1"
            android:gravity="bottom"
            android:inputType="textPassword"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/regPass2"
            android:hint="Re-Enter your password..."
            android:layout_weight="1"
            android:gravity="bottom"
            android:inputType="textPassword"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="2"
        android:orientation="horizontal">
        <Button
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="@string/register"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:textSize="32sp"
            android:layout_weight="1"
            android:layout_margin="10dp"
            android:id="@+id/btnRegRegister"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="cancel"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:textSize="32sp"
            android:layout_weight="1"
            android:layout_margin="10dp"
            android:id="@+id/btnRegCancel"/>
    </LinearLayout>
</LinearLayout>

------------------------------------------------
activity_task

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_margin="16dp">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Error"
        android:gravity="center"
        android:textSize="32sp"
        android:id="@+id/txtUserName"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="Enter a new task...."
            android:id="@+id/etMyTask"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="6"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:text="+"
            android:textSize="34sp"
            android:id="@+id/btnAddTask"/>
    </LinearLayout>
    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/lstTask"></ListView>
</LinearLayout>

--------------------------------------------
task_item

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp"
    android:orientation="horizontal"
    android:gravity="center_vertical">

    <Switch
        android:id="@+id/taskDone"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Task name...."
        android:textSize="24sp"
        android:id="@+id/taskName"
        android:layout_marginLeft="10dp"
        android:layout_weight="1"/>
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/trash"
        android:id="@+id/taskDelete"/>
</LinearLayout>