hasanmohdkhan

#!/bin/bash

############################
#script function
############################
setProperty(){
  awk -v pat="^$1=" -v value="$1=$2" '{ if ($0 ~ pat) print value; else print $0; }' $3 > $3.tmp
  mv $3.tmp $3
}
############################

hasanmohdkhan

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/

hasanmohdkhan

\n
=============  HOST:  ==========\n
\n
           local_ip:  %{local_ip}\n
         local_port:  %{local_port}\n
          remote_ip:  %{remote_ip}\n
        remote_port:  %{remote_port}\n
\n
=======  CONNECTION:  ==========\n
\n

hasanmohdkhan

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

hasanmohdkhan

#built application files
*.apk
*.ap_
*.aab
                           
# files for the dex VM
*.dex
                            
# Java class files
*.class

hasanmohdkhan

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

import androidx.recyclerview.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.AsyncListDiffer
import androidx.recyclerview.widget.DiffUtil

#parse("File Header.java")

hasanmohdkhan

#project level
build.gradle
dependencies {
        //...
        classpath "com.google.dagger:hilt-android-gradle-plugin:${version_hilt}
        //...
 }

#Module level 
build.gradle

hasanmohdkhan

class SomeViewModelFactory(
        private val owner: SavedStateRegistryOwner,
        private val defaultArgs: Bundle,
        private val someString: String) : AbstractSavedStateViewModelFactory(owner, defaultArgs) {
    override fun <T : ViewModel?> create(key: String, modelClass: Class<T>, state: SavedStateHandle) =
            SomeViewModel(state, someString) as T
}

class SomeViewModel(private val state: SavedStateHandle, private val someString: String) : ViewModel() {
    // The default value is used from 'defaultArgs' since 'defaultArgs' are saved in the ViewModelFactory.

hasanmohdkhan

// Override ViewModelProvider.NewInstanceFactory to create the ViewModel (VM).
class SomeViewModelFactory(private val someString: String): ViewModelProvider.NewInstanceFactory() {
    override fun <T : ViewModel?> create(modelClass: Class<T>): T = SomeViewModel(someString) as T
} 

class SomeViewModel(private val someString: String) : ViewModel() {
    init {
        //TODO: Use 'someString' to init process when VM is created. i.e. Get data request.
    }
}

hasanmohdkhan

class Fragment : Fragment() {
    private val viewModel: SomeViewModel by viewModels()

    private fun observeViewState() {
        viewModel.viewState.observe(viewLifecycleOwner) { viewState ->
            //viewState used here.
        }
    }
}