Move ImageView around inside RelativeLayout

Question

I need to move an ImageView (or anything else, for that matter) around inside a RelativeLayout. Does any one know the proper way to do this?

Could you be a bit more specific? What does "move around" mean? — CommonsWare, Nov 02 '09 at 13:47
Like, move its x\y coordinates. For example, if you had an image which was larger than the screen resolution and you wanted to be able to drag it around to look at the parts which were off screen. — Joren, Nov 02 '09 at 19:34

score 10 · Accepted Answer · edited Feb 07 '12 at 15:47

10

Makesure ImageView's layout_height and layout_width is set to fill_parent. Then do:

To move a view, use Matrix. It is very handy.

Matrix matrix = new Matrix();

matrix.reset();

matrix.postTranslate(x, y);

imageview.setScaleType(ScaleType.MATRIX);
imageview.setImageMatrix(matrix);

edited Feb 07 '12 at 15:47

ademar111190

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answered Jul 02 '11 at 10:37

whogiawho

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remember to set the ImageView android:scaleType="matrix" in xml if you plan to use this and return the view to the center/start position (as with a joystick handle), else it will get offset if its not set. – TouchBoarder Oct 20 '12 at 20:07

score 2 · Answer 2 · edited Feb 17 '12 at 21:28

2

this I found worked:

imageview.layout(l,t,r,b);

edited Feb 17 '12 at 21:28

Udo Held

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answered Feb 17 '12 at 21:17

Redsmurf

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score 1 · Answer 3 · answered Dec 02 '09 at 18:45

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mImageView.scrollBy(xOffset, yOffset);

answered Dec 02 '09 at 18:45

Dave

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score 0 · Answer 4 · edited Feb 04 '12 at 17:39

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It is very easy. You can implement onTouchListener event of any control you want and set its x, y position like make a new LayoutParams set its x, y and assign to view as view.setLayoutParam(layoutParams); it will drag the View.

edited Feb 04 '12 at 17:39

user229044

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answered Jun 09 '10 at 06:59

Adnan

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Move ImageView around inside RelativeLayout

4 Answers4

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