mmazzarolo

Charles command-line options

Charles supports a few command line options out of the box, documented here.
Unfortunately they seem to operate only as parameters for new Charles sessions, so you won't be able to run commands on a running instance of Charles.

Start a specific Charles session

A Charles session contains all of your recorded information. It is represented by the Session window; by default a new session is automatically created when you start Charles.
Sessions can be saved from File → Save Session (⌘+S).
Once saved, if you want you can start Charles from the saved session by running:

mmazzarolo

import { useState, useEffect, useRef } from "react";

interface Parameters {
  key: string;
  ctrlKey?: boolean;
  shiftKey?: boolean;
  metaKey?: boolean;
  onKeyDown?: (e: KeyboardEvent) => void;
  onKeyUp?: (e: KeyboardEvent) => void;
}

mmazzarolo

if pgrep scrcpy; then
    osascript -e 'tell application "System Events" to tell process "scrcpy"' \
              -e 'set frontmost to true' \
              -e 'if windows is not {} then perform action "AXRaise" of item 1 of windows' \
              -e 'end tell'
else
	/usr/local/bin/scrcpy
fi

mmazzarolo

package com.example.matteomazzarolo.imagetest;

import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

mmazzarolo

export default class CroppedImage extends Component {
  state = {
    croppedImageSources: []
  };

  async componentDidMount() {
    const crops = 4; 
    const croppedImageHeight = imHeight / crops;
    const croppedImageSources = [];
    for (let i = 0; i <= crops; i++) {

mmazzarolo

import * as React from "react";
import {
  NativeSyntheticEvent,
  StyleSheet,
  TextInput,
  TextInputFocusEventData,
  TextInputProps
} from "react-native";

interface State {

mmazzarolo

import * as React from "react";
import { StyleSheet, TextInput } from "react-native";

const BLUE = "#428AF8";
const LIGHT_GRAY = "#D3D3D3";

class MyTextInput extends React.Component {
  state = {
    isFocused: false
  };

mmazzarolo

import * as React from "react";
import { StyleSheet, Text, View } from "react-native";

class LoginScreen extends React.Component<{}> {
  render() {
    return (
      <View style={styles.container}>
        <Text>Welcome to the login screen!</Text>
      </View>
    );

mmazzarolo

#!/bin/bash
# Starts the metro bundler and runs react-native in a single terminal (à la Expo).
# CTRL + C kills the metro bundler.
# Arguments: 
# -p Development platform [ios (default), android].
# -s Starts scrcpy too. Android only. (https://github.com/Genymobile/scrcpy)

COLOR_RED='\033[0;31m'
COLOR_CYAN='\033[0;36m'
COLOR_PURPLE='\033[0;35m'

mmazzarolo

Async/Await, Promises, callbacks

Event driven architecture, event loop

Callback

• Come funzionano (esempio)

const fs = require('fs');