android change button stroke color

Question

I have a button that on start has a white border. This is set in the button def by applying a xml background using the following:

android:background="@drawable/butt1"

The butt1 def is as follows:

<shape xmlns:android="http://schemas.android.com/apk/res/android"     
android:shape="rectangle" >
<corners
android:topLeftRadius="30dp"
android:topRightRadius="30dp"
android:bottomLeftRadius="30dp"
android:bottomRightRadius="30dp"
/>

<padding
android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp"
/>

<stroke
android:width="4dp"
android:color="#FFFFFF"
/>
</shape>

This works fine as long as I have a dark background for the activity

My app can change backgrounds and when I change to a light background I cant see the button because of the stroke color being white (#FFFFFF)

How do I change the color of the border to say black(#000000) if the background is changed to white

I can change the text color to black using

Button view5 = (Button) findViewById(R.id.sett);  
view5.setTextColor(Color.parseColor("#000000"));

but cant work out how to apply a new xml background style

Any help appreciated

mark

U need to write 2 xml for the same and can switch aoorcordingly in activity — KOTIOS, Aug 09 '14 at 08:22
See this answer: [Set android shape color programmatically](http://stackoverflow.com/a/17825210/2558882). — Vikram, Aug 09 '14 at 08:35

Rod_Algonquin · Accepted Answer · 2014-08-09T08:34:55.843

1

You can create a second butt1 xml for black border and when the background color change to light then you can call view5.setBackgroundResource(R.drawable.butt1_black_border); to change the background of the button using the xml with black border

EDIT:

view5.setBackgroundResource(R.drawable.butt1_black_border);

edited Aug 09 '14 at 08:34

answered Aug 09 '14 at 08:22

Rod_Algonquin

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Thanks for this but when i set it i get an error "The method setBackgroundResource(int) in the type View is not applicable for the arguments (Drawable)" – user3422687 Aug 09 '14 at 08:27

Marcin Orlowski · Answer 2 · 2014-08-09T08:38:43.313

1

How do I change the color of the border to say black(#000000)

Alter view's drawable:

Button view5 = (Button) findViewById(R.id.sett); 
ShapeDrawable gradientDrawable = (ShapeDrawable)view5.getBackground(); 
gradientDrawable.setStroke(2, color);

See setStroke() docs.

edited Aug 09 '14 at 08:38

answered Aug 09 '14 at 08:28

Marcin Orlowski

72,056
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1

true, true. Corrected. Thanks – Marcin Orlowski Aug 09 '14 at 08:38

score 0 · Answer 3 · answered Aug 09 '14 at 08:32

you can use on focus change listener & set background drawable.There will be two drawable with different stroke color by checking boolean value set button background -

view5.setOnFocusChangeListener(new OnFocusChangeListener() {

            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                // TODO Auto-generated method stub

            }
        });

android change button stroke color

3 Answers3