Android. 9 pictures

The initial pair of. 9 pictures is not very understanding, some tutorials let people can't touch the mind.

The recent re-study finally understood its principle.

In fact, the most important thing to remember is that. 9 The meaning of the four black edges of the picture is different for each black edge:

Top: When horizontal stretching, keep other positions motionless, only at this point of the area do unlimited extension (copy)

Left: in vertical stretching, keep other positions motionless, only in the area of the point to do unlimited extension (copy)

Bottom: When horizontally stretched, keep the contents of the picture displayed in the same area.

Right: Keep the area of the picture intact when you stretch it vertically

Tools are good for using Android Studio. Name the image. 9.png end can be used in Android Studio. 9 Photo Editor opens.

Reference articles

http://www.jianshu.com/p/3fd048644e3f

Android. 9 pictures