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@dodyg
dodyg / gist:5823184
Last active March 29, 2024 03:59
Kotlin Programming Language Cheat Sheet Part 1

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.

@BrandonSmith
BrandonSmith / AndroidManifest.xml
Last active July 19, 2023 19:11
Quick example of how to schedule a notification in the future using AlarmManager
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.cards.notification">
<uses-sdk
android:minSdkVersion="17"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
@daniellevass
daniellevass / android_material_design_colours.xml
Last active June 5, 2024 13:54
Android Material Design Colours
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- google's material design colours from
http://www.google.com/design/spec/style/color.html#color-ui-color-palette -->
<!--reds-->
<color name="md_red_50">#FFEBEE</color>
<color name="md_red_100">#FFCDD2</color>
<color name="md_red_200">#EF9A9A</color>
@gabrielemariotti
gabrielemariotti / mobile-AndroidManifest.xml
Last active September 15, 2020 11:33
Android Wear: small gist to start an Activity on the mobile handheld from the Android Wear device.
<service android:name=".ListenerServiceFromWear">
<intent-filter>
<action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
</intent-filter>
</service>
@dlew
dlew / themes-debug.xml
Last active March 1, 2024 15:46
With the new theming in AppCompat, a lot of assets are tinted automatically for you via theme attributes. That has often led me to wonder "where the hell did this color come from?" You can replace your normal theme with this debug theme to help figure out the source of that color.
<!-- You can change the parent around to whatever you normally use -->
<style name="DebugColors" parent="Theme.AppCompat">
<!-- System colors -->
<item name="android:windowBackground">@color/__debugWindowBackground</item>
<item name="android:colorPressedHighlight">#FF4400</item>
<item name="android:colorLongPressedHighlight">#FF0044</item>
<item name="android:colorFocusedHighlight">#44FF00</item>
<item name="android:colorActivatedHighlight">#00FF44</item>
@seanKenkeremath
seanKenkeremath / Android Lollipop Widget Tinting Guide
Last active November 17, 2023 12:40
How base colors in Lollipop apply to different UI elements
Unless specified otherwise, all of the below tinting applies to both Lollipop and pre-Lollipop using AppCompat v21. To use the support version of these attributes, remove the android namespace. For instance, "android:colorControlNormal" becomes "colorControlNormal". These attributes will be propagated to their corresponding attributes within the android namespace for devices running Lollipop. Any exceptions to this will be noted by including the "android:" prefix.
All Clickable Views:
-----------
* ripple effect (Lollipop only) -- "colorControlHighlight"
Status Bar:
------------
* background (Lollipop only) - "colorPrimaryDark"
@mttkay
mttkay / Pager.java
Created November 4, 2015 15:46
A simple Rx based pager
public class Pager<I, O> {
private static final Observable FINISH_SEQUENCE = Observable.never();
private PublishSubject<Observable<I>> pages;
private Observable<I> nextPage = finish();
private Subscription subscription = Subscriptions.empty();
private final PagingFunction<I> pagingFunction;
private final Func1<I, O> pageTransformer;
@sebaslogen
sebaslogen / Picasso idlingresource.md
Last active April 27, 2021 22:54 — forked from Maragues/Picasso idlingresource.md
Implementation and usage of an IdlingResource that waits for Picasso actions to finish.

Note that the file lives in the package as Picasso (src/androidTest/java/com/squareup/picasso). Otherwise we don't have access to targetToAction

package com.squareup.picasso;

import android.app.Activity;
import android.os.Handler;
import android.support.test.espresso.IdlingResource;
import android.support.test.runner.lifecycle.ActivityLifecycleCallback;
import android.support.test.runner.lifecycle.Stage;
/*
* Copyright 2016 Google Inc.
*
* 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
@passsy
passsy / Locale.kt
Last active February 9, 2022 13:05
Allows easy iteration about all available locales. Kotlin Collection implementation for LocaleList which doesn't implement Collection<Locale> itself.
package com.pascalwelsch.android.util
import android.content.Context
import androidx.core.os.ConfigurationCompat
import androidx.core.os.LocaleListCompat
import java.util.Locale
/**
* Returns an [Iterable] for the languages of the user, sorted by priority. First choice first.
*/