ImageButton not rescaling

Question

My ImageButton isn't rescaling like the code is telling it to. Infact it's not doing anything.

Code:

public void getScreenRes(){
    DisplayMetrics display = this.getResources().getDisplayMetrics();
    int width = display.widthPixels;
    int height = display.heightPixels;
    int buttonheight = display.heightPixels / 8;
    double buttonwidth = buttonheight * 2.66666667;
    int buttonwidthint = (int) Math.round(buttonwidth);
    ImageButton firsttimeFB = (ImageButton) findViewById(R.id.firsttime_fb);
    firsttimeFB.setMaxWidth(buttonwidthint);
    firsttimeFB.setMaxHeight(buttonheight);
}

XML

<ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/facebook"
    android:id="@+id/firsttime_fb"
    />

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

0

The problem is probably that in xml you're defining width and height as "wrap_content"

Look at this answer: Resize ImageButton?

edited May 23 '17 at 12:12

Community

1
1

answered Jan 28 '15 at 09:52

vipluv

607
5
8

I changed it but it's still not doing anything it's staying as the XML is set. I want it to resize dynamically to the size I give it – 343N Jan 28 '15 at 09:54

score 0 · Answer 2 · answered Jan 28 '15 at 09:54

0

Replace your last three lines of code to:

ImageButton firsttimeFB = (ImageButton) findViewById(R.id.firsttime_fb);
firsttimeFB.getLayoutParams().width=buttonwidthint;
firsttimeFB.getLayoutParams().height=buttonheight;

You should set width instead of max width and same for height.

answered Jan 28 '15 at 09:54

Karn Shah

501
4
14

Method Call Expected on the second and third lines – 343N Jan 28 '15 at 09:59
Nevermind, I formatted width and height with parenthesis' after it, but it's still not scaling correctly. – 343N Jan 28 '15 at 10:04
It's not scaled correctly though, still way off. Image: https://dl.dropboxusercontent.com/u/19296530/Valour/error1.png – 343N Jan 28 '15 at 10:07
check what pixels is going in buttonheight. – Karn Shah Jan 28 '15 at 10:13
what do you mean? it should be the displays total pixels in height divided by 8. – 343N Jan 28 '15 at 10:15

ImageButton not rescaling

2 Answers2