tomgibara

package com.tomgibara.android.util;

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;

/**
 * A layout that arranges views into a grid of same-sized squares.

chrisbanes

/*
 * Copyright 2014 Chris Banes
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

JakeWharton

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public class ForegroundImageView extends ImageView {
  private Drawable foreground;

Jogan

package  your_package;

import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

SeptiyanAndika

//http://stackoverflow.com/questions/4605527/converting-pixels-to-dp
//The above method results accurate method compared to below methods
//http://stackoverflow.com/questions/8309354/formula-px-to-dp-dp-to-px-android
//http://stackoverflow.com/questions/13751080/converting-pixels-to-dpi-for-mdpi-and-hdpi-screens


public static float convertPixelsToDp(float px){
	DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
	float dp = px / (metrics.densityDpi / 160f);
	return Math.round(dp);

gabrielemariotti

You can use this class to realize a simple sectioned RecyclerView.Adapter without changing your code.

The RecyclerView should use a LinearLayoutManager. You can use this code also with the TwoWayView with the ListLayoutManager (https://github.com/lucasr/twoway-view)

This is a porting of the class SimpleSectionedListAdapter provided by Google

Example:

chrisbanes

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software

donnfelker

import android.graphics.*;
import com.squareup.picasso.Transformation;

/**
 * Transforms an image into a circle representation. Such as a avatar.
 */
public class CircularTransformation implements Transformation
{
    int radius = 10;

stefanrusek

if (Build.VERSION.SDK_INT == Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
    menu = new MenuWrapper(menu) {

        private MenuItem fix(MenuItem item) {
            try {
                Field f = item.getClass().getDeclaredField("mEmulateProviderVisibilityOverride");
                f.setAccessible(true);