Demwunz

How to install Flutter on macOS using homebrew and asdf

The official way to install the flutter and its dependencies is a mishmash of brew install, binary downloads alongside relying on system installed versions of ruby.

I became particularly frustrated when trying to setup flutter on macOS Mojave and macOS Catalina. I came across too many issues, and it took a lot of stackoverflow and google searches to overcome.

By using a package manager to install dependencies and runtimes, we can share the exact same setup in different environments and automate the install and escape the above issues.

This is particularly valuable if you use different machines, or have team members in different locations. Moreover, we know where everything belongs and how to upgrade or uninstall if necessary.

jbxbergdev

import 'dart:math';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';

class MarkerGenerator {
  final _markerSize;
  double _circleStrokeWidth;
  double _circleOffset;

av

import 'package:flutter/material.dart';

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

class NeumorphicApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Neumorphic App',
      theme: ThemeData(

humblerookie

import 'dart:convert';

import 'package:my_app/data_model/serializers.dart';
import 'package:flutter/foundation.dart';

Future<T> decodeJson<T>(String res) async {
  var list = List();
  list.add(res);
  list.add(T);
  //Replace compute with spawning any other isolate, compute is simpler abstraction of isolate api.

tieorange

package com.westwingnow.android.utils

import android.os.SystemClock
import android.view.View
import java.util.*

/**
 * A Throttled OnClickListener
 * Rejects clicks that are too close together in time.
 * This class is safe to use as an OnClickListener for multiple views, and will throttle each one separately.

tieorange

package com.dobabci.android.util


import android.app.Activity
import android.content.Context
import android.graphics.Rect
import android.view.View
import android.view.ViewTreeObserver
import android.view.Window
import android.view.inputmethod.InputMethodManager

bharatdodeja

Android UI Testing using Espresso, Rotton Pattern and Kotlin DSL

Espresso allow UI tests to have stable interactions with your app, but without discipline these tests can become hard to manage and require frequent updating. Robot pattern allows you to create stable, readable, and maintainable tests with the aid of Kotlin’s language features.

Test Excecution

Let's say there is a login screen and user needs to login access dashboard by entering email and password and clicking on the login button. This is what we want the test to validate. But there’s also the how. Really, what we are looking for is the what.

Traditional Testing (Problem)

A way that you might write the test is something like this:

jmfayard

// buildSrc/src/main/kotlin/Config.kt
object Config {
    const val ACTIVITY = "com.mautinoa.cardapp.MainActivity"
    const val PACKAGE = "com.mautinoa.cardapp"
    const val kotlinVersion = "1.2.71"

    object SdkVersions {
        val versionCode = 1
        val compile = 28
        val target = 26

lopspower

#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME}#end

import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import java.util.*

class ${NAME} : RecyclerView.Adapter<${Model}Adapter.ViewHolder>() {

MaksimDmitriev

package sample.com.sample_app;

import android.support.annotation.NonNull;

public class FileUtils {

    @NonNull
    public static String generateName() {
        return Long.toString(System.currentTimeMillis());
    }