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Showing posts from September, 2010

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Ruby and Rails FAQ(s)

on September 07, 2010

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Problem Updating Ruby Gem

on September 07, 2010

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SVN FAQ(s)

on September 02, 2010

Subversion (SVN)

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If you are preparing for CKAD or CKA exam and are new to Vim/Vi, this post will help you know everything that is essential to being productive with Vim during your exam. Vim has 3 modes as depicted in picture below: In Command Mode , you do things like navigating your cursor from one point to another in your text file, or delete text or replace text or select text or things like that. When you open Vim, you will be in this mode to begin with. In Insert Mode , you insert text and delete text with [backspace] key :) In Execution Mode , you do things like search text in file, set tab length, set line numbers in editor and stuff like that.

Android Activity's onDestroy() Ain't Your Reliable Friend

Look at the Android Activity life-cycle events in the picture beside. The lifecycle isn't something new. You're familiar with it right? You're also that good Android developer that writes clean code, wherein you consciously override onDestroy() method to include resources clean-up code and save some state, right? Per Android doc , it is okay and usually the practice to write cleanup code in this method but not anything beyond that. So if you are to write code to persist state in this method, or anything else beyond resource clean-up (like threads associated with an activity), you're better off to push it up the life-cycle, either in onStop() or onPause() method. That is how I settled in the first iteration of new learning but wasn't happy. Why? To quote Android Doc:

Connecting to Expo Dev Server in WSL 2 over LAN

This post drafts things I did to connect my Android device to Expo dev server running in WSL 2 on Windows 10 over LAN connection (in my case using Wi-Fi). The set-up looks like below: Note: Expo-Client is installed on my android device. Note: Expo-CLI npm version used is 3.27.14 Assumption: IPv4 address is used over IPv4. When you run ` ip address ` in your WSL 2 terminal, you will your ip-address of your VM as something like 172.x.x.x . When you check the ip address of your Windows 10 host, by running ` Get-NetIPConfiguration ` in your PowerShell terminal you will find your host ip to be something like 192.168.x.x . When you connect your Android device to the same LAN over Wi-Fi, your ip address would be similar (something like 192.168.x.x). The fact that WSL 2 isn't sharing the same ip address as its host is an issue to be resolved. This needs to be fixed as first thing, because otherwise how do we even reach the server running in WSL over LAN? The easy fix to this is t...

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