Chi Learning

1. 新建单独的定义code的变量文件：

    保存格式必须为.c文件

在協同工作中，經常會有模塊維護和代碼封裝的問題。 把需要封裝的代碼打成一個lib無疑是一種很好的方式。

1.創建lib

 最近遇到了以dmg结尾的文件，着实把我给忙着了，之前没有遇到过这种后缀名的文件，查询了下，总结四种方法分享给遇到此类问题的朋友么，以后大家就不会再有
dmg文件怎么打开,如何打开dmg文件,dmg格式用什么打开 这些疑问了。

VMware Server 當掉後重新啟動 Guest OS 時，出現

cannot open the disk '*.vmdk' or one of the snapshot disk is depends on.
Reason: Failed to lock the file.

解決方法一:

程式執行當中常常需要記錄各種資訊，如果需要處理的資訊較為單純，可以直接使用文字檔來紀錄，假若資料較繁雜就需要用SQLite，在此先以簡單文字檔做切入，先以Java I/O介紹寫檔、讀檔常用的方法及常用的Method

首先是從BroadcastReceiver派生出一個新類，用來監聽系統啟動後發出的廣播消息android.intent.action.BOOT_COMPLETED 。 

• BootReceiver.java:
• import android.content.BroadcastReceiver;
• import android.content.Context;
• import android.content.Intent;
• import android.util.Log;
• publicclass BootReceiver extends BroadcastReceiver {
• publicvoid onReceive(Context context, Intent intent) {
• if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED"))
• {
• Log.d("BootReceiver", "system boot completed");
• Intent newIntent = new Intent(context, FirstRun.class);
• newIntent.setAction("android.intent.action.MAIN"); //MyActivity action defined in AndroidManifest.xml
• newIntent.addCategory("android.intent.category.LAUNCHER");//MyActivity category defined in AndroidManifest.xml
• newIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //If activity is not launched in Activity environment, this flag is mandatory to set
• context.startActivity(newIntent);
• //if you want to start a service, follow below method:
• /*******************************************************
• Intent service = new Intent(yourService.ACTION_START);
• service.setClass(context, yourService.class);
• context.startService(service);
• ******************************************************/
• }
• }
• }

接下来这个类就是监听到系统启动完毕后，我们要运行的activity.

I had reported earlier how I had gotten a C Hello World statically-linked program running on my Android phone using CodeSourcery's toolchain (on linux). Today I got a dynamically-linked Hello World program running on the phone, compiled using Android's prebuilt toolchain from the source.

入門 Android，安裝了一堆有的沒的之後  

新增一個Project執行，卻出現

Hello World in C on Android

If you've been following the Android world, you'd know that Android's SDK requires you to write apps in Java. Ever since I got my phone I've been dying to run a Hello World C program, but I've been unable to get the right cross compiler for it.