iOS Development Learning Notes

• Turn on exception break point
• Avoid using id type as much as possible
• Can not use @synthesize in category implementation
• Remember to set delegate in viewDidLoad

64位Linux下QQ无法输入中文

http://www.linuxdiyf.com/viewarticle.php?id=103219
以下三步都需要用管理员权限，或者用 sudo 来执行

第一步：
把 32位版（附件）：
/usr/lib/gtk-2.0/2.10.0/immodules/ 的

-rw-r--r-- 1 root root 67648 2008-07-31 15:31 im-scim-bridge.so
-rw-r--r-- 1 root root 143588 2008-07-31 15:31 im-scim.so

复制到64位系统下的lib32：
/usr/lib32/gtk-2.0/2.10.0/immodules/

第二步：
cd /etc/gtk-2.0
mv gtk.immodules.32 gtk.immodules.32.bak
/usr/bin/gtk-query-immodules-2.0 > gtk.immodules.32

第三步：
把 gtk.immodules.32 文件里的 /usr/lib/ 替换成 /usr/lib32/

附：64位下安装办法
sudo dpkg -i --force-all linuxqq_1.0-Preview1_i386.deb

另外，我第一次使用的时候，登陆很正常。后来退出后，又登录，换了几个号，都失败。

最后，把~/.Tencent 目录干掉，就OK了。

Mic problem in ubuntu hardy on Dell D630

alsamixer and press tab to navigate to corresponding view. make sure the config is like this:

run

Make vim support GBK

Add set fencs=utf-8,gbk to ~/.vimrc

The ultimate solution to MySQL chinese charset problem using ant sql task

This is the check list of items that need to be set to unicode:
1. The character encoding of SQL file for ant to call
2. The url attribute of ant task needs to be like this:
jdbc:mysql://localhost:3306/cocomoII?useUnicode=true&characterEncoding=UTF-8
3. The encoding attribute of ant task needs to be set to utf-8
4. Database and tables need to use utf-8 by adding CHARACTER SET utf8 COLLATE utf8_general_ci to the end of create database/table statement. The default is latin1!
5. (Optional)Start mysqld with --character-set-server=utf8 --collation-server=utf8_general_ci

Character encoding of mysql can be set in several levels, they are: server>database>table>column. If encoding at lower level is not specified, the one of higher one level is used.
The above 4 steps guarantee that the data would be correctly stored in database. If you want to view data correctly from mysql client, the additional steps are needed:

6. In mysql prompt:
mysql> charset utf8;

ADSL on Ubuntu

Input
sudo pppoeconf
to configure user name and password.

Type pon dsl-provider to turn on the connection

Type poff to turn it off

Install Grub from Ubuntu Live CD

This will restore grub if you already had grub installed but lost it to a windows install or some other occurence that erased/changed your MBR so that grub no longer appears at start up or it returns an error.

(This how to is written for Ubuntu but should work on other systems. The only thing to take note of, when you see "sudo" that will mean to you that the following command should be entered at a root terminal.)

Boot into the live Ubuntu cd. This can be the live installer cd or the older live session Ubuntu cds.

When you get to the desktop open a terminal and enter. (I am going to give you the commands and then I will explain them later)

Code:

sudo grub

This will get you a "grub>" prompt (i.e. the grub shell). At grub>. enter these commands

Code:

find /boot/grub/stage1

This will return a location. If you have more than one, select the installation that you want to provide the grub files.
Next, THIS IS IMPORTANT, whatever was returned for the find command use it in the next line (you are still at grub>. when you enter the next 3 commands)

Code:

root (hd?,?)

Again use the value from the find command i.e. if find returned (hd0,1) then you would enter root (hd0,1)

Next enter the command to install grub to the mbr

Code:

setup (hd0)

Finally exit the grub shell
Code:

quit

That is it. Grub will be installed to the mbr.
When you reboot, you will have the grub menu at startup.

Now the explanation.
Sudo grub gets you the grub shell.
Find /boot/grub/stage1 has grub locate the file stage1. What this does is tell us where grub's files are. Only a small part of grub is located on the mbr, the rest of grub is in your boot folder. Grub needs those files to run the setup. So you find the files and then you tell grub where to locate the files it will need for setup.
So root (hd?,?) tells grub it's files are on that partition.
Finally setup (hd0) tells grub to setup on hd0. When you give grub the parameter hd0 with no following value for a partition, grub will use the mbr. hd0 is the grub label for the first drive's mbr.
Quit will exit you from the grub shell.

Original Post: http://ubuntuforums.org/showthread.php?t=224351