hardikm9850

import com.google.gson.Gson
import com.google.gson.GsonBuilder
import com.google.gson.TypeAdapter
import com.google.gson.TypeAdapterFactory
import com.google.gson.reflect.TypeToken
import com.google.gson.stream.JsonReader
import com.google.gson.stream.JsonWriter
import kotlin.jvm.internal.Reflection
import kotlin.reflect.KClass

hardikm9850

Development Patterns

• Design Patterns: Elements of Reusable Object-Oriented Software
• Patterns of Enterprise Application Architecture
• Domain Driven Design
• Elemental Design Patterns
• Head First Design Patterns

Development Best Practices

• Pragmatic Programmer
• Clean Code

hardikm9850

Quick Clean Cache

1. Open android studio Tools->Flutter->Clean
2. Go to File -> Invalidate Caches / Restart
3. Or open terminal run "flutter clean"
4. Remove pubspec.lock
5. Double check the Flutter SDK Path config correcty - https://tppr.me/qn6dP

Or open the terminal and try this script:

flutter clean

hardikm9850

import 'dart:math';

void main() async {
  var duration = _runCPUBoundTask();
  print('The duration for CPU bound task is $duration');
}

Future<Duration> _runCPUBoundTask() async {
    var startTime = DateTime.now();
    print('Starting ...');

hardikm9850

void main() async {
  var tweetId = 12345;
  // Get tweet details by tweet Id 
  final networkData = await fetchTweetById(tweetId);
  final jsonData = jsonDecode(networkData);
}

Future<Tweet> fetchTweetById(int tweetId) async {
  final url = Uri.parse("www.twitter.com" + "/$tweetId");
  final response = await http.get(url);

hardikm9850

Java

Not thread safe.

class SimpleSingleton {
    private static SimpleSingleton sInstance;
  
    private SimpleSingleton() {}
 

hardikm9850

GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

• https://leetcode.com/problems/maximum-subarray/ # Close enough
• https://leetcode.com/problems/minimum-size-subarray-sum/

hardikm9850

fun fetchUsers() {
   val call = api.getUsersOverNetwork()
   call.addCallback { result ->
       when (result) {
           is Success<User> -> {
              // do something with the result
           }
           is Error -> {
              // handle the error
           }

hardikm9850

Articles explaining process related to layout inflation, event mechanism etc

The ViewGroup,View under Android Event Distribution Mechanism Source Code https://programmer.ink/think/the-viewgroup-view-under-android-event-distribution-mechanism-source-code.html

Deflating the LayoutInflater and working with findViewById() https://obvious.in/blog/deflating-the-layoutinflater-working-with-findviewbyid

hardikm9850

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class FileCopy
{
	public static void main (String[] args) throws java.lang.Exception