PullToRefreshLayout - Because guidelines are for scrubs.

gistfile1.txt

package com.derp.android.view;

import android.animation.Animator;
import android.content.Context;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.TextView;

import com.derp.android.R;

public class PullToRefreshLayout extends FrameLayout {
    SwipeRefreshLayout.OnRefreshListener listener;

    View child;
    View prompt;
    TextView promptText;
    View promptIcon;

    public PullToRefreshLayout(Context context) {
        super(context);
        setup();
    }

    public PullToRefreshLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        setup();

    }

    public PullToRefreshLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        setup();
    }

    public void setup() {
        LayoutInflater.from(getContext()).inflate(R.layout.pull_to_refresh_background, this, true);
        listener = new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                throw new IllegalStateException("Add a listener");
            }
        };
    }

    public void setOnRefreshListener(SwipeRefreshLayout.OnRefreshListener listener) {
        this.listener = listener;
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        child = getChildAt(1);
        prompt = getChildAt(0);
        prompt.setVisibility(GONE);


        promptText = (TextView) prompt.findViewById(R.id.ptr_text);
        promptIcon = prompt.findViewById(R.id.ptr_icon);

    }

    Float lastY;

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        View child = getChildAt(1);
        float currentY = ev.getY();
        switch (ev.getAction()) {
            case MotionEvent.ACTION_POINTER_DOWN:
                return false;
            case MotionEvent.ACTION_MOVE:
                if (lastY == null)
                    lastY = currentY;
                if (lastY < currentY && !child.canScrollVertically(-1)) {
                    lastY = currentY;
                    return true;
                } else {
                    lastY = currentY;
                    return false;
                }

            case MotionEvent.ACTION_UP:
            default:
                lastY = null;
                return false;
        }
    }

    @Override
    public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
        //no
    }

    Float startY;

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        float currentY = ev.getY();
        switch (ev.getAction()) {
            case MotionEvent.ACTION_POINTER_DOWN:
                break;
            case MotionEvent.ACTION_MOVE:
                if (startY == null)
                    startY = ev.getY();
                float delta = currentY - startY;

                if (delta < 0) {
                    animateToStart();
                    return false;
                }
                animateToPosition(delta);
                if (isPulledFarEnough()) {
                    promptText.setText(R.string.ptr_release);
                } else {
                    promptText.setText(R.string.ptr_pull);
                }
                break;
            case MotionEvent.ACTION_UP:
            case MotionEvent.ACTION_CANCEL:
                animateToStart();
                if (isPulledFarEnough()) {
                    if (listener != null)
                        listener.onRefresh();
                }
                startY = null;
                break;
        }
        return true;
    }

    public boolean isPulledFarEnough() {
        return prompt.getTranslationY() > 0;
    }

    private void animateToPosition(float position) {
        prompt.setVisibility(View.VISIBLE);
        child.animate().translationY(position).setDuration(0).start();
        prompt.animate().translationY(position - prompt.getHeight()).setDuration(0).setListener(null).start();
        promptIcon.setRotation(position / 2);
    }

    private void animateToStart() {
        child.animate().translationY(0).setDuration(200).start();
        prompt.animate().translationY(0 - prompt.getHeight()).setDuration(200).setListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) {

            }

            @Override
            public void onAnimationEnd(Animator animation) {
                if (prompt != null)
                    prompt.setVisibility(View.GONE);
            }

            @Override
            public void onAnimationCancel(Animator animation) {

            }

            @Override
            public void onAnimationRepeat(Animator animation) {

            }
        }).start();
        promptIcon.setRotation(0);
    }
}



==========================


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:padding="10dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView
        android:id="@+id/ptr_text"
        android:text="@string/ptr_pull"
        android:textSize="30sp"
        android:layout_gravity="center"
        android:gravity="center"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <ImageView
        android:id="@+id/ptr_icon"
        android:layout_gravity="center"
        android:src="@drawable/refresh"
        android:layout_width="48dp"
        android:layout_height="48dp" />
</LinearLayout>