goodev

// THIS IS A BETA! I DON'T RECOMMEND USING IT IN PRODUCTION CODE JUST YET

/*
 * Copyright 2012 Roman Nurik
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0

goodev

try {
    // force to use overflow menu
    ViewConfiguration config = ViewConfiguration.get(this);
    Field menuKeyField = ViewConfiguration.class
            .getDeclaredField("sHasPermanentMenuKey");
    if (menuKeyField != null) {
        menuKeyField.setAccessible(true);
        menuKeyField.setBoolean(config, false);
    }   
} catch (Exception ex) {

goodev

import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;

goodev

public void transformPage(View view, float position) {
    int pageWidth = view.getWidth();
        
    if (position < -1) { // [-Infinity,-1)
        // This page is way off-screen to the left.
        view.setAlpha(0);

    } else if (position <= 1) { // [-1,1]
          
		  

goodev

import android.content.Context;
import android.os.Build;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.TranslateAnimation;
import android.widget.FrameLayout;

goodev

public abstract class HeaderFooterRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private static final int VIEW_TYPE_MAX_COUNT = 1000;
    private static final int HEADER_VIEW_TYPE_OFFSET = 0;
    private static final int FOOTER_VIEW_TYPE_OFFSET = HEADER_VIEW_TYPE_OFFSET + VIEW_TYPE_MAX_COUNT;
    private static final int CONTENT_VIEW_TYPE_OFFSET = FOOTER_VIEW_TYPE_OFFSET + VIEW_TYPE_MAX_COUNT;

    private int headerItemCount;
    private int contentItemCount;
    private int footerItemCount;

goodev

https://blog.growth.supply/party-tricks-with-rxjava-rxandroid-retrolambda-1b06ed7cd29c

View Click

Instead of the verbose setOnClickListener:

RxView.clicks(submitButton).subscribe(o -> log("submit button clicked!"));

Filter even numbers

Observable

goodev

package com.donnfelker.rxexample;

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

import rx.Subscriber;
import rx.Subscription;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;

goodev

//https://medium.com/@nullthemall/floatingactionmenu-floatingactionbutton-behavior-dd33cc0d9ba7
public class FloatingActionMenuBehavior extends android.support.design.widget.CoordinatorLayout.Behavior<FloatingActionsMenu> {

    private static final Interpolator FAST_OUT_SLOW_IN_INTERPOLATOR = new FastOutLinearInInterpolator();

    private int mTotalDy = 0;
    private boolean isAnimating = false;
    private FloatingActionsMenu.OnFloatingActionsMenuUpdateListener mFloatingMenuUpdateListener = new FloatingActionsMenu.OnFloatingActionsMenuUpdateListener() {
        @Override
        public void onMenuExpanded() {

goodev

package despotoski.nikola.appbarlayoutsamples.view;

import android.animation.IntEvaluator;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.ViewPropertyAnimatorCompat;