Android: 9-patch repeat pattern instead of stretching

问题

I have a 9-patch image file which looks like this:

When I use it it appears like this:

What I actually wanted to achieve is the complete dot in the center repeated instead of stretched. I hope that it's possible.

回答1:

I think it's not possible using 9-Patch to make repeated patterns (only stretching certain area), perhaps you could find more about it in official documentation

回答2:

...

Correction: If you want the orange dots to repeat, you will not succeed using 9 patch. 9 patch can only stretch the part you told it to stretch and leave untouched, the remaining areas. There is no repeat mode with 9 patch PNG.

You might want to look into Bitmap class. There is a tileMode you might be able to use for your problem here.

<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
            android:src="@drawable/stripe_bg"
            android:tileMode="repeat"
            android:antialias="true"
            android:dither="false"
            android:filter="false"
            android:gravity="left"
        />

回答3:

First make sure you save your 9 patch image as your_image_name.9.png and store it in the res/drawable folder. Then in your xml just set the layout background with-- android:background="@drawable/your_image_name" and that should work. If it's still not working can you post your layout xml?

来源：https://stackoverflow.com/questions/3636251/android-9-patch-repeat-pattern-instead-of-stretching