set height of imageview as matchparent programmatically

Question

I need to set the height of an imageview as matchparent programatically.if it is a fixed height i know how to set.

but how can i set it as matchparent?

EDIT:

actually height of the parent layout is dynamic.so i need to make the height of the imageview as the height of parent.

i have tried all the methods mentioned in the answers.but it is not setting the height as match parent :( — andro-girl, Apr 25 '12 at 07:03

score 287 · Answer 1 · answered Apr 25 '12 at 06:44

287

imageView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

answered Apr 25 '12 at 06:44

C. Leung

6,218
3
20
32

16

The moment i press Alt+Enter in LayoutParams, i see so many classes. Can you please tell me which one to use? – Uday Feb 13 '18 at 08:25
what is the parent view? – C. Leung Feb 13 '18 at 11:33
5

You should use class of view that You want to set LayoutParams i.e. use LinearLayout.LayoutParams to set prams to Your LL :) – Andrew Jun 20 '18 at 06:34
What if you want the height to be dynamic based on the dimensions of the original image but want the width to be MATCH_PARENT? – Taylor Feb 06 '19 at 14:59
import android.view.ViewGroup – Alan Nelson May 01 '20 at 13:57

score 66 · Answer 2 · answered May 24 '16 at 10:17

66

imageView.getLayoutParams().height= ViewGroup.LayoutParams.MATCH_PARENT;

answered May 24 '16 at 10:17

Luke Allison

3,118
3
24
40

10

If you're setting the params for the first time because you made the imageview programmatically, this will null pointer error (or does with text view) and should everywhere else. – Tatarize May 14 '18 at 08:23

score 15 · Answer 3 · answered Apr 25 '12 at 06:48

15

imageView.setLayoutParams
    (new ViewGroup.MarginLayoutParams
        (width, ViewGroup.LayoutParams.MATCH_PARENT));

The Type of layout params depends on the parent view group. If you put the wrong one it will cause exception.

answered Apr 25 '12 at 06:48

xandy

27,357
8
59
64

1

what is "width" ? – FlorianB Oct 03 '16 at 22:07

score 15 · Answer 4 · answered Feb 13 '19 at 11:42

For Kotlin Users

val params = mImageView?.layoutParams as FrameLayout.LayoutParams
params.width = FrameLayout.LayoutParams.MATCH_PARENT
params.height = FrameLayout.LayoutParams.MATCH_PARENT
mImageView?.layoutParams = params

Here I used FrameLayout.LayoutParams since my views( ImageView) parent is FrameLayout

score 8 · Answer 5 · answered Feb 16 '20 at 14:24

I had same issue. Resolved by firstly setting :

imageView.setMinHeight(0);
imageView.setMinimumHeight(0);

And then :

imageView.getLayoutParams().height= ViewGroup.LayoutParams.MATCH_PARENT;

setMinHeight is defined by ImageView, while setMinimumHeight is defined by View. According to the docs, the greater of the two values is used, so both must be set.

score 3 · Answer 6 · answered Apr 09 '16 at 05:38

You can try this incase you would like to match parent. The dimensions arrangement is width and height inorder

web = new WebView(this);
        web.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));

score 1 · Answer 7 · answered Apr 25 '12 at 06:45

1

You can use the MATCH_PARENT constant or its numeric value -1.

answered Apr 25 '12 at 06:45

1

MATCH_PARENT is not defined in the context. You must say 'LayoutParams.MATCH_PARENT' – Akshat Agarwal Dec 01 '15 at 21:10

score -20 · Accepted Answer · answered Apr 25 '12 at 06:51

-20

initiate LayoutParams .

assign the parent's width and height and pass it to setLayoutParams method of the imageview

answered Apr 25 '12 at 06:51

luckyluke

642
2
7
22

3

you should never pass the parents actual dimensions. Always use MATCH_PARENT instead of actual values. In general I wouldn't recommend using absolute sizes because it might look completely different on all the screens there are. I'd prefer using weights. – Daniel Bo Nov 28 '16 at 16:06
18

To be honest this should be a comment – Neon Warge Feb 26 '17 at 10:39

set height of imageview as matchparent programmatically

8 Answers8

Linked