Hesamedin

Android Cheat Sheet

Developer tips

Record a video of your app

Developer options -> Check show touches
adb shell screenrecord /sdcard/video.mp4
adb pull /sdcard/video.mp4

Hesamedin

public class Comment {
  long commentId;
  String message;
  
  // Other setter/getter methodes
  ...
}

Hesamedin

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

Hesamedin

import React, { Component } from 'react';
import { Text, View } from "react-native";
import { Provider } from 'react-redux';
import { createStore } from 'redux';
import reducer from './reducers/'

class App extends Component {
    render() {
        return (
            <Provider store={createStore(reducer)}>

Hesamedin

package hmac

import org.apache.commons.codec.binary.Base64
import java.net.URLEncoder
import java.time.LocalDateTime
import java.time.OffsetDateTime
import javax.crypto.Mac
import javax.crypto.spec.SecretKeySpec
import java.util.HashMap

Hesamedin

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'io.fabric'

apply from: '../gradle/afsTasks.gradle'   <========

android {
    compileSdkVersion 28

Hesamedin

Scaffold(
      appBar: AppBar(...),
      body: WillPopScope(
        onWillPop: onBackClick,
        child: CustomScrollView(
        slivers: <Widget>[
          SliverToBoxAdapter(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[

Hesamedin

Future<void> storePushNotificationToken(String userId, String token) async {
    final batch = _firestore.batch();

    final pushTokenRef = _firestore.collection(FirestoreCollection.pushToken.path).doc(userId);
    batch.set(
      pushTokenRef,
      {'userId': userId, 'token': token},
      SetOptions(merge: true),
    );

Hesamedin

[
  {
    "origin": ["*"],
    "method": ["GET"],
    "maxAgeSeconds": 3600
  }
]

Hesamedin

import 'dart:convert';
import 'dart:html';

Future<void> downloadFile(String fileName, String pathToFile) async {
  if (pathToFile.isEmpty) return;
  if (!kIsWeb) return;

  Uint8List? data = await FirebaseStorage.instance.ref(pathToFile).getData();
  if (data == null) return;
  String encodedData = base64Encode(data);