Some Git tips

Git is so popular around the developer world, as well as Github. Nowadays almost every developer could use git a bit. It was hard to imagine this situation in several years ago.

To master your development tool would help you focus on development itself. And provide more information when hacking code.

Git has so many commands, and each commands have many parameters. It is common that people says “Oh! I don’t know we can use Git like that!”. This article is for sharing some commands I use often. Hope it helps, and I hope you can share your tips as well.

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2016-12-03 geek tools git

RxJava Javadoc

2018/04/02 Update: add 2.1.12 doc download point

ReactiveX is cool, as well as RxJava. If you are developing app and using RxJava, of course you often refer RxJava documentations. I would like to refer its javadoc from my local host, but cannot find out a download point. Therefore I make a copy and upload it.

1.2.0
- Download RxJava 1.2.0 javadoc from Dropbox
- Download RxJava 1.2.0 javadoc from GoogleDrive
- About 40MB, includes all images
2.1.12
- Download RxJava 2.1.12 javadoc from Dropbox
- Download RxJava 2.1.12 javadoc from GoogleDrive
- About 50MB, includes all images

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2016-10-10 geek tools android java

成田機場到東京車站

朋友要搭廉航到東京初次嘗試自由行，不是很清楚怎麼到東京車站。所以寫這篇給他，順便放上來給需要的人。畢竟我自己第一次搭到成田機場的時候，從 Google map 上也是看了一下卻不很清楚怎麼坐，尤其初次到東京若沒有網路，總是會有點緊張。

我是搭乘機場的京成巴士，在東京、成田機場之間往返，單程單人是 1000 日圓，約一個小時三十分鐘左右的車程。因為是走高速公路，聽朋友說有可能會遇上塞車，要省錢還是要搭時間比較穩定的鐵道，就看個人喜好了。

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2016-10-02 life japan

東京大眾交通簡單上手

網路上很多自助旅遊達人寫了不少文章，很值得參考。寫這篇只是因為好友初次自助旅遊要來東京，與其在聊天室打一堆字不如寫成一篇比較清楚些。

因為好友對東京完全陌生，希望這篇文章能夠至少幫到他，怎麼樣找到~~生命的出路~~搭乘路線，雖然我也不是什麼鐵道通，也懶得最佳化到省錢的極致。只要大致上做到想去哪都去得到，這樣就夠了。

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2016-09-26 life japan

Upgrade Retrofit 1.X to 2

I guess most of people alreay read the post Retrofit 2 — Upgrade Guide from 1.9, me too. It listed some points for upgrading. If you used Retrofit 1.x in production, you might get more problem than the guide in upgrading, at least I did. Just make a memo here for myself and other poor guy.

I had problems such as

Primitive String was wrapped by double quotes
Upload multipart-form by using RequestBody doesn’t work

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2016-09-05 geek geek android java

Android Studio use sdk source code

用 Android Studio 的時候經常會用 debugger 設定 breakpoint 停下來抓蟲。step trace 的時候往往也會跳進 sdk 裡面的 code。Android Studio 會 decompile 並且找 source code 來幫助我們 trace

Android Studio 會看 build.gradle 裡面的 compileSdkVersion 來決定開發環境用的 sdk version
如果設定成 23，就會去找 API 23 的 source code。所以要用 Android SDK Manager 下載 API 23 的 source code
如果是用 emulator 當開發環境，記得也要把 image 版本設定到相同的 API 23

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2016-08-19 geek geek android java

Inkscape crashed in Debian testing

Summary

這個問題持續發生好長一段時間了：只要同時選擇了兩個以上的物件，Inkscape 就會 crash。問題簡單來說就是中文翻譯的問題，所以用其他語言的人不會遇到。

For debian inkscape 0.91, It only happens in Traditional-Chinese conext.

You could reproduce this problem by launching inkscape in Traditional-Chinese context. (It won’t happen in Simplified-Chinese context. explain later).