android应用学习---11.使用ant编译android项目

eclipse太难用了，幸好android支持ant来编译工程，纯手工打造，下面以hello-jni为例来试验一下。

sun@ubuntu:/tmp/project/hello-jni$ ls
AndroidManifest.xml  default.properties  jni  res  src  tests
sun@ubuntu:/tmp/project/hello-jni$ android list target  ;列出支持的target
Available Android targets:
----------
id: 1 or "android-11"
     Name: Android 3.0
     Type: Platform
     API level: 11
     Revision: 2
     Skins: WXGA (default)
     ABIs : armeabi
----------
id: 2 or "Google Inc.:Google APIs:11"
     Name: Google APIs
     Type: Add-On
     Vendor: Google Inc.
     Revision: 1
     Description: Android + Google APIs
     Based on Android 3.0 (API level 11)
     Libraries:
      * com.google.android.maps (maps.jar)
          API for Google Maps
     Skins: WXGA (default)
     ABIs : armeabi
sun@ubuntu:/tmp/project/hello-jni$ android  update project -p . -t android-11
Updated and renamed default.properties to project.properties
Updated local.properties
No project name specified, using Activity name 'HelloJni'.
If you wish to change it, edit the first line of build.xml.
Added file ./build.xml
Added file ./proguard-project.txt
It seems that there are sub-projects. If you want to update them
please use the --subprojects parameter.
sun@ubuntu:/tmp/project/hello-jni$ ant debug
Buildfile: /tmp/project/hello-jni/build.xml
BUILD SUCCESSFUL
Total time: 4 seconds

1. 只需要两步就搞定了，不过这个是没有签名的。 说明:
a. android update project -p -t
    -t 后的参数 可以用 android list target查看
   执行后会生成build.xml
b. 用 ant debug -->编译工具自动签名debug key和使用zipalign优化打包
   用 ant release -->需要自己签名和优化
2. 进行手动签名

sun@ubuntu:/tmp/project/hello-jni$ keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000
Enter keystore password:
Re-enter new password:
What is your first and last name?
  [Unknown]:  name
What is the name of your organizational unit?
  [Unknown]:  unit
What is the name of your organization?
  [Unknown]:  org
What is the name of your City or Locality?
  [Unknown]:  ciyt
What is the name of your State or Province?
  [Unknown]:  state
What is the two-letter country code for this unit?
  [Unknown]:  123
Is CN=name, OU=unit, O=org, L=ciyt, ST=state, C=123 correct?
  [no]:  yes

Generating 2,048 bit RSA key pair and self-signed certificate (SHA1withRSA) with a validity of 10,000 days
    for: CN=name, OU=unit, O=org, L=ciyt, ST=state, C=123
Enter key password for
    (RETURN if same as keystore password):
[Storing my-release-key.keystore]
sun@ubuntu:/tmp/project/hello-jni$ jarsigner -verbose -sigalg MD5withRSA -digestalg SHA1 -keystore my-release-key.keystore ./bin/HelloJni-release-unsigned.apk  alias_name
Enter Passphrase for keystore: 
   adding: META-INF/MANIFEST.MF
   adding: META-INF/ALIAS_NA.SF
   adding: META-INF/ALIAS_NA.RSA
  signing: AndroidManifest.xml
  signing: resources.arsc
  signing: classes.dex
sun@ubuntu:/tmp/project/hello-jni$ adb install ./bin/HelloJni-release-unsigned.apk
87 KB/s (4877 bytes in 0.054s)
    pkg: /data/local/tmp/HelloJni-release-unsigned.apk
Success

3. 自动签名，这项技术我还没有掌握
[参]