如果你已经安装好android sdk，eclipse的avd插件也安装好了。就可以开始hello world了。
新建一个android项目，填好项目名，还要选择Build Target(我选的sdk1.6)，
applica
tion name: HelloWorld
package name: org.dx.hello
(复选框默认勾上)Create Activity: Hello
finish。
出现错误： Failed to find an AVD compatible with target 'Android 1.6'. Launch aborted.
使用sdk tools直接在命令行新建一个虚拟设备
E:mobileandroid-sdk-windowstools>android create avd --name Test --target 3
Android 1.6 is a basic Android platform.
Do you wish to create a custom hardware profile [no]y
SD Card support: Whether the device supports insertion/removal of virtual SD Car
ds.
hw.sdCard [yes]:y
Abstracted LCD density: Must be one of 120, 160 or 240. A value used to roughly
describe the density of the LCD screen for automatic resource/asset selection.
hw.lcd.density [160]:
DPad support: Whether the device has DPad keys
hw.dPad [yes]:
Accelerometer: Whether there is an accelerometer in the device.
hw.accelerometer [yes]:
Maximum horizontal camera pixels
hw.camera.maxHorizontalPixels [640]:
Cache partition size
disk.cachePartition.size [66MB]:
Audio playback support: Whether the device can play audio
hw.audioOutput [yes]:
Track-ball support: Whether there is a trackball on the device.
hw.trackBall [yes]:
Maximum vertical camera pixels
hw.camera.maxVerticalPixels [480]:
Camera support: Whether the device has a camera.
hw.camera [no]:y
Battery support: Whether the device can run on a battery.
hw.battery [yes]:
Touch-screen support: Whether there is a touch screen or not on the device.
hw.touchScreen [yes]:
Audio recording support: Whether the device can record audio
hw.audioInput [yes]:
GPS support: Whether there is a GPS in the device.
hw.gps [yes]:
Cache partition support: Whether we use a /cache partition on the device.
disk.cachePartition [yes]:
Keyboard support: Whether the device has a QWERTY keyboard.
hw.keyboard [yes]:
Max VM application heap size: The maximum heap size a Dalvik application might a
llocate before being killed by the system. Value is in megabytes.
vm.heapSize [16]:
Device ram size: The amount of physical RAM on the device, in megabytes.
hw.ramSize [96]:
GSM modem support: Whether there is a GSM modem in the device.
hw.gsmModem [yes]:
Created AVD 'Test' based on Android 1.6,
with the following hardware config:
hw.sdCard=yes
hw.lcd.density=160
hw.camera=yes
一般回车就可以了，一些需要的特性暂时用不到，也可以先忽略掉。
然后查看列表：
E:mobileandroid-sdk-windowstools>android list
Available Android targets:
id: 1 or "android-2"
Name: Android 1.1
Type: Platform
API level: 2
Revision: 1
Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 2 or "android-3"
Name: Android 1.5
Type: Platform
API level: 3
Revision: 4
Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 3 or "android-4"
Name: Android 1.6
Type: Platform
API level: 4
Revision: 3
Skins: HVGA (default), QVGA, WVGA800, WVGA854
id: 4 or "android-5"
Name: Android 2.0
Type: Platform
API level: 5
Revision: 1
Skins: HVGA (default), QVGA, WQVGA400, WQVGA432, WVGA800, WVGA854
id: 5 or "android-6"
Name: Android 2.0.1
Type: Platform
API level: 6
Revision: 1
Skins: HVGA (default), QVGA, WQVGA400, WQVGA432, WVGA800, WVGA854
id: 6 or "android-7"
Name: Android 2.1-update1
Type: Platform
API level: 7
Revision: 2
Skins: HVGA (default), QVGA, WQVGA400, WQVGA432, WVGA800, WVGA854
id: 7 or "android-8"
Name: Android 2.2
Type: Platform
API level: 8
Revision: 1
Skins: HVGA (default), QVGA, WQVGA400, WQVGA432, WVGA800, WVGA854
id: 8 or "Google Inc.:Google APIs:8"
Name: Google APIs
Type: Add-On
Vendor: Google Inc.
Revision: 1
Description: Android + Google APIs
Based on Android 2.2 (API level 8)
Libraries:
* com.google.android.maps (maps.jar)
API for Google Maps
Skins: WVGA854, WQVGA400, HVGA (default), WQVGA432, WVGA800, QVGA
Available Android Virtual Devices:
Name: Test
Path: C:Documents and SettingsAdministrator.androidavdTest.avd
Target: Android 1.6 (API level 4)
Skin: HVGA
可以看到已经Test设备创建好了。
回到eclipse，如果项目有错误，刷新一下。右键run as android application, 可以看见模拟器了，
改下Hello->res->values->string.xml文件
把hello对应的value改下，再重新运行，oh，成就感来了。
举报
