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@mrk-han
mrk-han / emulator-install-using-avdmanager.md
Last active May 1, 2024 21:12
Installing and creating Emulators with AVDMANAGER (For Continuous Integration Server or Local Use)

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For an emulator that mimics a Pixel 5 Device with Google APIs and ARM architecture (for an M1/M2 Macbook):

  1. List All System Images Available for Download: sdkmanager --list | grep system-images

  2. Download Image: sdkmanager --install "system-images;android-30;google_atd;arm64-v8a"

@passiondroid
passiondroid / OpacityHex.markdown
Last active March 1, 2024 21:49
Opacity percentage in a Hex color code

Android uses hexadecimal ARGB values, which are formatted as #AARRGGBB. That first pair of letters, the AA, represent the alpha channel. You must convert your decimal opacity values to a hexadecimal value. Here are the steps:

Alpha Hex Value Process

  • Take your opacity as a decimal value and multiply it by 255. So, if you have a block that is 50% opaque the decimal value would be .5. For example: .5 x 255 = 127.5

  • The fraction won't convert to hexadecimal, so you must round your number up or down to the nearest whole number. For example: 127.5 rounds up to 128; 55.25 rounds down to 55.

  • Enter your decimal value in a decimal-to-hexadecimal converter, like http://www.binaryhexconverter.com/decimal-to-hex-converter, and convert your values.

@KKorvin
KKorvin / LetterBitmap.java
Last active November 8, 2018 07:39
Create multi color squares with letter. For Android.
/**
* Orginal http://stackoverflow.com/questions/23122088/colored-boxed-with-letters-a-la-gmail
* Used to create a {@link Bitmap} that contains a letter used in the English
* alphabet or digit, if there is no letter or digit available, a default image
* is shown instead.
*
* Only English language supported.
*/
public class LetterBitmap {
@danharper
danharper / gulpfile.js
Last active April 11, 2024 08:31
New ES6 project with Babel, Browserify & Gulp
var gulp = require('gulp');
var sourcemaps = require('gulp-sourcemaps');
var source = require('vinyl-source-stream');
var buffer = require('vinyl-buffer');
var browserify = require('browserify');
var watchify = require('watchify');
var babel = require('babelify');
function compile(watch) {
var bundler = watchify(browserify('./src/index.js', { debug: true }).transform(babel));
@chrisbanes
chrisbanes / SystemUiHelper.java
Last active March 2, 2024 18:57
SystemUiHelper
/*
* 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
@Jogan
Jogan / FloatingActionButton.java
Last active December 4, 2023 12:48
Implementation of Android L's floating action button pattern. API 14+
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;