How to change width of an ImageView in Android SDK

Question

so I'm trying to learn to do stuff with Android apps, and I have an ImageView named (id) "img_BarHealth" that i initialize to be "160dp".

I have made a button and hooked it up to this function:

public void onBack(View view) {
    //Get link to the object.
    ImageView bar_Health = (ImageView) findViewById(R.id.img_BarHealth);

    //This is what I want done. (However this value is not accessable it seems)
    bar_Health.width = "80dp";
}

So, any suggestions? =)

I think it's already here what you need: http://stackoverflow.com/questions/3144940/set-imageview-width-and-height-programmatically — Balazs Varhegyi, Sep 05 '13 at 20:22

score 0 · Accepted Answer · answered Sep 05 '13 at 20:22

0

Use getLayoutParams().width

ImageView bar_Health = (ImageView) findViewById(R.id.img_BarHealth);
    bar_Health.getLayoutParams().width = 80;

answered Sep 05 '13 at 20:22

Joe Rakhimov

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score 0 · Answer 2 · edited May 23 '17 at 11:49

0

You have to call getLayoutParams().width and then you need to convert dip to pixel size:

public int convertDipToPixels(float dips)
{
    return (int) (dips * getResources().getDisplayMetrics().density + 0.5f);
}

Something working would be close to:

bar_Health.getLayoutParams().width = convertDipToPixels(80);

edited May 23 '17 at 11:49

Community

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answered Sep 05 '13 at 20:24

gunar

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How to change width of an ImageView in Android SDK

2 Answers2