How to set margin for ImageView in pixels in android java?

Question

I have a set of ImageViews whose BackgroundResource and LayoutParams will be defined in a separate xml file. The height, width, marginleft and margintop are given in pixels. The values are in respect to a 1024x600 pixel resolution screen. The code i'm using

    ImageView ImgV= (ImageView)findViewById(R.id.ImgV_1);
    RelativeLayout.LayoutParams the_dimens = new RelativeLayout.LayoutParams(50,50);
    the_dimens.setMargins(800,50,0,0);

    ImgV.setBackgroundResource(R.drawable.bulbon);
    ImgV.setLayoutParams(the_dimens);

While the height and width seem to be rightly displayed in pixels, the margins are not. So how can I set the margin values to apply in pixels rather than whatever default units the below code takes. the_dimens.setMargins(800,50,0,0);

The app is only for a 1024x600 device, so i'm not worried about resolution independent design. Thanks.

the official docs for `ViewGroup.MarginLayoutParams` say: `setMargins(int left, int top, int right, int bottom) Sets the margins, in pixels. [...]` — pskink, Aug 31 '16 at 11:21
@pskink i've checked and measured the values in photoshop. they don't add up — Sri, Aug 31 '16 at 11:23
@pskink if it isn't showing right in the emulator (which is 1024x600 res) i doubt it will be the case in the actual device. I think im missing something here.. — Sri, Aug 31 '16 at 11:26
@pskink you are right. it is my mistake. the root relative layout had padding. i think i should be more careful before posting here. thank you for your time :) — Sri, Aug 31 '16 at 12:22

score 0 · Answer 1 · edited May 23 '17 at 12:32

0

check this

int dpValue = 5; // margin in dips
float d = context.getResources().getDisplayMetrics().density;
int margin = (int)(dpValue * d); // margin in pixels

edited May 23 '17 at 12:32

Community

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answered Aug 31 '16 at 11:22

huk

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score 0 · Answer 2 · edited Aug 31 '16 at 11:51

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You can do in this way:

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lp.setMargins(left, top, right, bottom);
imageView.setLayoutParams(lp);

edited Aug 31 '16 at 11:51

Shabbir Dhangot

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answered Aug 31 '16 at 11:24

Chandrama Prasad

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How to set margin for ImageView in pixels in android java?

2 Answers2