Format: 9-Patch PNG (recommended)
Dimensions
- LDPI:
- Portrait: 200x320px
- Landscape: 320x200px
- MDPI:
- Portrait: 320x480px
- Landscape: 480x320px
- HDPI:
- Portrait: 480x800px
- Landscape: 800x480px
- XHDPI:
- Portrait: 720px1280px
- Landscape: 1280x720px
- XXHDPI:
- Portrait: 960px1600px
- Landscape: 1600x960px
- XXXHDPI:
- Portrait: 1280px1920px
- Landscape: 1920x1280px
Android 9-Patch PNG
原文：http://my.oschina.net/uniquejava/blog/522861
