Tom Berghuis tberghuis

`ViewCompositionStrategy`	Description
`DisposeOnDetachedFromWindow`	The Composition will be disposed when the underlying `ComposeView` is detached from the window. Has since been superseded by `DisposeOnDetachedFromWindowOrReleasedFromPool`. Interop scenario: * `ComposeView` whether it’s the sole element in the View hierarchy, or in the context of a mixed View/Compose screen (not in Fragment).
`DisposeOnDetachedFromWindowOrReleasedFromPool` (Default)	Similar to `DisposeOnDetachedFromWindow`, when the Composition is not in a pooling container, such as a `RecyclerView`. If it is in a pooling container, it will dispose when either the pooling container itself detaches from the window

Use custom USB device with Android emulator by using custom built kernel on Ubuntu 18.04

The android emulator doesn't support all usb devices because they are disabled in the kernel. So we need to build it with another configuration. My goal was to build the same version as it was before, but with just configuration modifications.

Find current android version

Start the emulator without modifications, go into

Configuration > System > About emulated device > Android version

You should not use the Open SSH client that comes with Git for Windows. Instead, Windows 10 has its own implementation of Open SSH that is integrated with the system. To achieve this:

Start the ssh-agent from Windows Services:

Type Services in the Start Menu or Win+R and then type services.msc to launch the Services window;
Find the OpenSSH Authentication Agent in the list and double click on it;
In the OpenSSH Authentication Agent Properties window that appears, choose Automatic from the Startup type: dropdown and click Start from Service status:. Make sure it now says Service status: Running.

Configure Git to use the Windows 10 implementation of OpenSSH by issuing the following command in Powershell:

git config --global core.sshCommand C:/Windows/System32/OpenSSH/ssh.exe

How to use SASS with create-react-app

This will require only one dependency, and one line added to your package.json and it's super fast.

Create an app wih create-react-app.
Install node-sass.
Create your base sass file inside src/sass.
Add a new script to package json that will watch the file, process sass and compile it into src/css.
Include the compiled css into React via require, this way your app will reload whenever the new css is compiled.
ran the new script along with npm start.

	import android.content.Intent
	import android.graphics.PixelFormat
	import android.os.IBinder
	import android.view.Gravity
	import android.view.WindowManager
	import androidx.compose.foundation.gestures.detectDragGestures
	import androidx.compose.foundation.layout.Box
	import androidx.compose.foundation.layout.BoxScope
	import androidx.compose.runtime.Composable
	import androidx.compose.runtime.getValue

	#!/usr/bin/env bash

	shopt -s nullglob
	lastgroup=""
	for g in `find /sys/kernel/iommu_groups/* -maxdepth 0 -type d \| sort -V`; do
	for d in $g/devices/*; do
	if [ "${g##*/}" != "$lastgroup" ]; then
	echo -en "Group ${g##*/}:\t"
	else
	echo -en "\t\t"

	import android.os.Bundle
	import androidx.lifecycle.Lifecycle
	import androidx.lifecycle.LifecycleRegistry
	import androidx.savedstate.SavedStateRegistry
	import androidx.savedstate.SavedStateRegistryController
	import androidx.savedstate.SavedStateRegistryOwner

	internal class MyLifecycleOwner : SavedStateRegistryOwner {
	private var mLifecycleRegistry: LifecycleRegistry = LifecycleRegistry(this)
	private var mSavedStateRegistryController: SavedStateRegistryController = SavedStateRegistryController.create(this)

	#!/bin/bash
	export __NV_PRIME_RENDER_OFFLOAD=1
	export __GLX_VENDOR_LIBRARY_NAME=nvidia
	export __VK_LAYER_NV_optimus=NVIDIA_only
	export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json
	exec "$@"

	import 'dart:math';

	import 'package:flutter/material.dart';

	//Colors
	Color crossColor = const Color(0xFF1ABDD5);
	Color circleColor = const Color(0xFFD8B9FA);
	Color accentColor = const Color(0xFF90A4AE);

	void main() => runApp(MyApp());

	#!/bin/bash
	for d in $(find /sys/kernel/iommu_groups/ -type l \| sort -n -k5 -t/); do
	n=${d#/iommu_groups/}; n=${n%%/*}
	printf 'IOMMU Group %s ' "$n"
	lspci -nns "${d##*/}"
	done;