rotate imageview around its center without cutting off its edges

Question

I've customized imageview but its just rotating its bitmap not the whole view. I don't want to use animation because I'm dragging imageview as well so moving animated imageivew results weird, so sticking to onDraw/draw, plus overriding draw is nothing doing special.

        @Override
        protected void onDraw(Canvas canvas) {
        // TODO Auto-generated method stub
        canvas.save();
        canvas.rotate(rotationAngle, rotationW, rotationH);
        super.onDraw(canvas);
        canvas.restore();
        }

how can I rotate the whole view not only its bitmap??

score 4 · Answer 1 · edited May 23 '17 at 12:08

4

I did not get the provided answers intend here, but using

android:clipChildren="false"

for the parent ViewGroup and overriding draw instead of onDraw did the job for me

For further information see: Rotating imageview and its background without cropp

edited May 23 '17 at 12:08

Community

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answered Jul 27 '14 at 21:32

Murmel

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score 1 · Accepted Answer · edited Apr 28 '14 at 15:47

1

One must check width and height of the imageview, if Height > width then at the time of rotation width must be equal to height and same with height.
Make width and height equal to fill_parent and then rotate/translate/scale via matrix.

edited Apr 28 '14 at 15:47

patridge

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answered Oct 19 '12 at 04:05

Khawar

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score 0 · Answer 3 · edited Apr 28 '14 at 15:46

0

Starting with API 11, there is the following method available for each view:

.setRotation(float angle);

http://developer.android.com/reference/android/view/View.html#attr_android:rotation

Before API 11 you could add a rotate to the main-element of your view:

@Override
protected void onDraw(Canvas c) {
  c.save();
  c.rotate(...);
  super.onDraw(c);
  c.restore();
}

edited Apr 28 '14 at 15:46

patridge

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answered Sep 14 '12 at 05:47

Nippey

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There is no difference between code we both posted, actually I'm doing the same thing and its working but its cutting its edges unless its on 0'/180'/360'. – Khawar Sep 14 '12 at 07:15
But do you do it on the image view or on the complete window? You can take the main container-element and turn everything. That was my thougt :) – Nippey Sep 14 '12 at 07:46
I've multiple imageview in relativeLayout, so user tap on any of the view and then rotate/scale that view(imageview/textview), so how can I rotate the whole layout? that's why I've customized imageview but can't rotate actual container of imageview, I can't post snap of emulator so that why you are not getting it, hope you got my point :) – Khawar Sep 14 '12 at 08:07

rotate imageview around its center without cutting off its edges

3 Answers3