android Imageview layoutparams in dip?

Question

I'm using the following code :

ImageView i = new ImageView(mContext);

i.setImageResource(mImageIds[position]);

i.setScaleType(ImageView.ScaleType.FIT_XY);
       //pixels settings !!!
i.setLayoutParams(new Gallery.LayoutParams(200, 100));

but as you can see, it is setting the layout dimensions in pixels.

Does anybody know how to do the same thing but in "dip" ?

score 19 · Answer 1 · edited May 29 '17 at 14:03

The following helper method takes as input device independent pixels (DIP) and returns actual pixels for the current device.

private int getPixels(int dipValue) {
    Resources r = getResources();
    int px = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                                            dipValue, 
                                            r.getDisplayMetrics());
    return px;
}

score 10 · Answer 2 · answered Dec 13 '12 at 15:03

10

If you store your dimension as a resource, you can use

getResources().getDimensionPixelSize(id);

This will also make it easier to adjust your layouts.

answered Dec 13 '12 at 15:03

ndw

513
6
14

score 1 · Accepted Answer · answered Aug 26 '10 at 14:35

1

See http://developer.android.com/guide/practices/screens_support.html#screen-independence

On how to convert from dpi to pixels.

answered Aug 26 '10 at 14:35

Cpt.Ohlund

2,589
1
20
15

thanks its look interesting to me but I dont understand the formula... Do you understand it ? can you give me an example on how to convert 100dip to pixel for example ? – Fabien Aug 26 '10 at 14:41
I found this solution that work perfectly : http://stackoverflow.com/questions/2238883/what-is-the-correct-way-to-specify-dimensions-in-dip-from-java-code – Fabien Aug 26 '10 at 14:57

android Imageview layoutparams in dip?

3 Answers3