CODEWITHSUNDEEP
javaandroidandroid-drawable
Augusto
Augusto

Reputation: 4243

How to set Corner in Drawable at runtime?

I would like edit the background of layout in runtime. My image drawable is in the class and I would like to set the image with corners like background of the layout. How to do this?

Upvotes: 1

Views: 2272

Answers (5)

inkedTechie
inkedTechie

Reputation: 684

Try this:

GradientDrawable bg = (GradientDrawable) relative_layout.getBackground();
bg.setCornerRadii();

Upvotes: 1

capt.swag
capt.swag

Reputation: 10661

  1. First get the background from your view using getBackground().
  2. Cast it to a GradientDrawable variable.
  3. Finally call method setCornerRadius(float value) with the value.

setCornerRadius(float value) will set all four corners with the same value.

So it also has the method setCornerRadii(float []radii), which can be used to set corners of all four sides, from top-left, top-right, bottom-right, bottom-left;

setCornerRadii(float []radii)

Specify radii for each of the 4 corners. For each corner, the array contains 2 values, [X_radius, Y_radius]. The corners are ordered top-left, top-right, bottom-right, bottom-left. This property is honored only when the shape is of type RECTANGLE.

GradientDrawable drawable = (GradientDrawable) view.getBackground();
drawable.setCornerRadii(radii);

OR

float values[] = {1.1f, 2.2f, 1.5f, 3.3f};
GradientDrawable drawable = (GradientDrawable) view.getBackground();
drawable.setCornerRadii(values);

This means, top-left corner is 1.1f, top-right corner is 2.2, bottom-right corner is 1.5f and finally bottom-left corner is 3.3f.

Upvotes: 4

Divyang Panchal
Divyang Panchal

Reputation: 1909

To create Shape Drawable Programetically

public static void createShapeDrawable(View v, int backgroundColor, int borderColor)
    {
        GradientDrawable shape = new GradientDrawable();
        shape.setShape(GradientDrawable.RECTANGLE);
        shape.setCornerRadii(new float[] { 8, 8, 8, 8, 0, 0, 0, 0 }); // set corner Radious 
        shape.setColor(backgroundColor);
        shape.setStroke(3, borderColor);
        v.setBackgroundDrawable(shape);
    }

Upvotes: 0

Mo1989
Mo1989

Reputation: 2494

int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
    setBackgroundDrawable();
} else {
    setBackground();
}

see : https://stackoverflow.com/a/11947755/3329488

Upvotes: 0

TeChNo_DeViL
TeChNo_DeViL

Reputation: 739

Create drawables resource for your normal and curved background and place them in res/drawable/ folder.

For example:

box.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
</shape>

box_curved.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:radius="5dp" />
</shape>

Then at runtime, change background by :

view.setBackground(getResources().getDrawable(R.drawable.box));

or

view.setBackground(getResources().getDrawable(R.drawable.box_curved));

Upvotes: 0

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