Thanh Le thanhzusu

	Open terminal app:
	alias android-avd="emulator -avd Nexus_5X_API_29_x86 &"
	alias ios-simulator="open /Applications/Xcode.app/Contents/Developer/Applications/Simulator.app/"

	Then just run android-avd or ios-simulator

	In React Native context

	render() {

	return <WebView onNavigationStateChange={this.onNavigationStateChange} />
	}

	onNavigationStateChange = (e) => {
	// allow normal the natvigation
	let allowChanged = true;

	You have already added your SSH key to Gitlab account and it's working well but sometime when you join to new repository and it raised an error like below:

	Permission denied (publickey).

	You can fix this issue by Add all known keys to the SSH agent:

	ssh-add -A

	Now this works but it won’t persist across reboots. So if you want to never worry about this again, just open up your user’s ~/.bash_profile file like this:

	import React from 'react'
	import {
	View,
	Animated,
	FlatList,
	} from 'react-native'

	export default class App extends React.Component {
	state = {
	shouldShowStickyHeader: false,

	When you see Red Box with stack trace, you can click any
	stack frame to jump to the source file. The packager will launch your
	editor of choice. It will first look at REACT_EDITOR environment
	variable, then at EDITOR. To set it up, you can add something like
	export REACT_EDITOR=atom to your ~/.bashrc or ~/.zshrc depending on
	which shell you use.
	VScode supports a command to isntall quickly:
	> Shell Command: Install 'code' command in PATH command.
	(https://code.visualstudio.com/docs/setup/mac)

	1. Install ffmpeg through Brew using brew install ffmpeg
	2. Open termial and run:
	ffmpeg -i /path/to/input/file /path/to/output.mp4

	For Xcode 8.2 or later
	You can take videos and screenshots of Simulator using the xcrun Xcode command-line utility.

	1. Run your app on the simulator.
	2. Open Terminal.app
	3. Run the command

	- To take a screenshot, xcrun simctl io booted screenshot
	- To take a video, xcrun simctl io booted recordVideo <filename>.<file extension>.
	For example: xcrun simctl io booted recordVideo appvideo.mov