psayre23

Below are the Big O performance of common functions of different Java Collections.


List                 | Add  | Remove | Get  | Contains | Next | Data Structure
---------------------|------|--------|------|----------|------|---------------
ArrayList            | O(1) |  O(n)  | O(1) |   O(n)   | O(1) | Array
LinkedList           | O(1) |  O(1)  | O(n) |   O(n)   | O(1) | Linked List
CopyOnWriteArrayList | O(n) |  O(n)  | O(1) |   O(n)   | O(1) | Array

polbins

Simple RecyclerView Divider

Simple Horizontal Divider Item Decoration for RecyclerView

    mRecyclerView.addItemDecoration(new SimpleDividerItemDecoration(
            getApplicationContext()
    	));

NOTE: Add item decoration prior to setting the adapter

daddykotex

import android.text.TextUtils;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

tasomaniac

#!/bin/sh

set -e

if [ -z "$1" ]; then
  shot_path=$(date +%Y-%m-%d-%H-%M-%S).mp4
else
  shot_path="$*"
fi

dodalovic

package patterns

interface CarService {
    fun doService()
}

interface CarServiceDecorator : CarService

class BasicCarService : CarService {
    override fun doService() = println("Doing basic checkup ... DONE")

0xMatthewGroves

package com.frostrocket.samples

import android.content.SharedPreferences
import androidx.core.content.edit
import androidx.preference.PreferenceManager
import kotlin.properties.ReadWriteProperty
import kotlin.reflect.KProperty

/**
 * Yet another implementation of Shared Preferences using Delegated Properties

jthodge

defaults write com.apple.Dock appswitcher-all-displays -bool true
killall Dock