Hello World using Ant for Google’s Android platform

Here’s a quick start of stuff i found poking around Android SDK this morning. The official Getting Started guide is here.

Run the activityCreator to generate a hello world project


C:\android\mysandbox>..\tools\activityCreator.bat --out HelloAndroid com.google.android.hello.HelloAndroid
package: com.google.android.hello
out_dir: HelloAndroid
activity_name: HelloAndroid
Created directory HelloAndroid\src\com\google\android\hello
Added file HelloAndroid\src\com\google\android\hello\HelloAndroid.java
Created directory HelloAndroid\bin
Created directory HelloAndroid\res\values
Added file HelloAndroid\res\values\strings.xml
Created directory HelloAndroid\res\layout
Added file HelloAndroid\res\layout\main.xml
Added file HelloAndroid\AndroidManifest.xml
Added file HelloAndroid\build.xml


Take a look at the generated files


C:\android\mysandbox>dir /s /b
C:\android\mysandbox\HelloAndroid
C:\android\mysandbox\HelloAndroid\AndroidManifest.xml
C:\android\mysandbox\HelloAndroid\bin
C:\android\mysandbox\HelloAndroid\build.xml
C:\android\mysandbox\HelloAndroid\res
C:\android\mysandbox\HelloAndroid\src
C:\android\mysandbox\HelloAndroid\res\layout
C:\android\mysandbox\HelloAndroid\res\values
C:\android\mysandbox\HelloAndroid\res\layout\main.xml
C:\android\mysandbox\HelloAndroid\res\values\strings.xml
C:\android\mysandbox\HelloAndroid\src\com
C:\android\mysandbox\HelloAndroid\src\com\google
C:\android\mysandbox\HelloAndroid\src\com\google\android
C:\android\mysandbox\HelloAndroid\src\com\google\android\hello
C:\android\mysandbox\HelloAndroid\src\com\google\android\hello\HelloAndroid.java


Build the project using ant

C:\android\mysandbox\HelloAndroid>ant
Buildfile: build.xml

dirs:
[mkdir] Created dir: C:\android\mysandbox\HelloAndroid\bin\classes

resource-src:
[echo] Generating R.java...

aidl:

compile:
[javac] Compiling 2 source files to C:\android\mysandbox\HelloAndroid\bin\classes

dex:

package-res:

package-res-no-assets:
[echo] Packaging resources...

package-dex:
[echo] Packaging dex...
[zip] Building zip: C:\android\mysandbox\HelloAndroid\bin\HelloAndroid.apk.tmp
[move] Moving 1 file to C:\android\mysandbox\HelloAndroid\bin

package:

BUILD SUCCESSFUL
Total time: 2 seconds


Look at the generated artifacts

C:\android\mysandbox\HelloAndroid>cd bin

C:\android\mysandbox\HelloAndroid\bin>dir
Volume in drive C is Preload
Volume Serial Number is D886-7853

Directory of C:\android\mysandbox\HelloAndroid\bin

11/13/2007 10:24 AM .
11/13/2007 10:24 AM ..
11/13/2007 10:24 AM classes
11/13/2007 10:24 AM 1,854 classes.dex
11/13/2007 10:24 AM 2,449 HelloAndroid.apk
2 File(s) 4,303 bytes
3 Dir(s) 48,294,133,760 bytes free


Start the emulator


C:\android\mysandbox\HelloAndroid\bin>start C:\android\tools\emulator


Install the generated artifact


C:\android\mysandbox\HelloAndroid\bin> C:\android\tools\adb install HelloAndroid.apk
153 KB/s (0 bytes in 2449.000s)


Look at the application in the emulator

Remove the application


C:\android\mysandbox\HelloAndroid\bin>C:\android\tools\adb shell
# ls
ls
drwxr-xr-x root root 1969-12-31 19:00 var
drwxrwxrwt root root 2007-11-13 10:28 tmp
drwxr-xr-x root root 2007-11-11 15:59 system
drwxr-xr-x root root 1969-12-31 19:00 sys
drwxr-xr-x root root 1969-12-31 19:00 sbin
dr-xr-xr-x root root 1969-12-31 19:00 proc
-rwxr-xr-x root root 93824 1969-12-31 19:00 init
drwxr-xr-x root root 1969-12-31 19:00 etc
drwxrwx--x system system 2007-11-11 15:59 data
drwx------ root root 1969-12-31 19:00 root
drwxr-xr-x root root 2007-11-13 10:27 dev
# cd data
cd data
# cd app
cd app
# ls
ls
-rw-rw-rw- root root 2449 2007-11-13 10:24 HelloAndroid.apk
-rw-r--r-- system system 1325833 2007-11-11 15:59 ApiDemos.apk
# rm HelloAndroid.apk
rm HelloAndroid.apk
# exit
exit