UPDATE:
I have been able to write (layers.xml) what I want on a XML file using
Layer-List.
so I can use this drawable on a ImageView normally doing:
<ImageView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/layers" />
Everything works fine! But this isn't my aim.
Actually I'd like to use this drawable as a background of my custom
view, so I need to use it into the onDraw() method applying it on the
canvas of my View.
...
Bitmap img = BitmapFactory.decodeResource(context.getResources(),
R.drawable.layers);
canvas.drawBitmap(img, null, rect, paint);
...
I've this error at runtime:
05-31 10:59:35.289: ERROR/AndroidRuntime(1702):
java.lang.NullPointerException
05-31 10:59:35.289: ERROR/AndroidRuntime(1702): at
android.graphics.Canvas.throwIfRecycled(Canvas.java:954)
05-31 10:59:35.289: ERROR/AndroidRuntime(1702): at
android.graphics.Canvas.drawBitmap(Canvas.java:1012)
05-31 10:59:35.289: ERROR/AndroidRuntime(1702): at
it.myPackageTest.view.test.CustomView.onDraw(CustomView.java:79)
...
I don't call recycle(), so how it is possible? Maybe I can't use
layers on a canvas? I really don't know! :(
Please tell me something!
Thanks in advance!
On 30 Mag, 18:50, Paolo <brand...@gmail.com> wrote:
> Hi there!
> I need to draw a drawable on a canvas. I'd like to avoid using a png
> file, but I'd like to draw it with shapes.
> The final result must be an unique drawable composed by two rects
> overlayed, one smallest than the other one.
>
> How can I do that in XML? I've seen layer-list but I can't figure out
> if it is useful for my achivement besides the fact I have a runtime
> exception... .:(
>
> Can anyone hepl me, please?
>
> Thanks in advance.
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