I need to show a badge on Material chip at the right top. How can I easily do it?

user_7527995 0
Viewed 494

Im trying this way

    override fun draw(canvas: Canvas) {
        super.draw(canvas)
        val viewWidth = width.toFloat()
        val padding = chipEndPadding
        canvas.drawOval(viewWidth - padding, padding, viewWidth, padding + padding, paint)
    }

But it doesnt seem to be showing up probably because of the chipDrawable. Any way to accomplish this. This method works for all other views, But Not chip!

android-chips material-components material-components-android android
2 Answers

You can use the BadgeDrawable provided by the Material Components Library.

In your layout:

    <com.google.android.material.chip.Chip
        android:id="@+id/chip"

Then:

    chip.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            BadgeDrawable badgeDrawable = BadgeDrawable.create(MainActivity.this);
            badgeDrawable.setNumber(4);
            badgeDrawable.setVerticalOffset(25);
            badgeDrawable.setHorizontalOffset(15);
            BadgeUtils.attachBadgeDrawable(badgeDrawable, chip, null);

            chip.getViewTreeObserver().removeOnGlobalLayoutListener(this);
        }
    });

enter image description here

user_20165620

getViewTreeObserver did not work well for me and caused some problems but View.post() method worked much easier :

public void showBadgeOnView(View view, int someNumber, Context context) {
 BadgeDrawable badgeDrawable = BadgeDrawable.create(context);
 badgeDrawable.setNumber(someNumber);
 view.post(() ->BadgeUtils.attachBadgeDrawable(badgeDrawable, view, null));
}
user_110893070
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