Android EditText suggest change

Icon or button inside Custom Edit Text and its action and click listeners.

This example will help to have the Edit text with the icon at the right side.

Note: In this just I am using setCompoundDrawablesWithIntrinsicBounds, So if you want to change the icon position you can achieve that using setCompoundDrawablesWithIntrinsicBounds in setIcon.
public class MKEditText extends AppCompatEditText {

    public interface IconClickListener {
        public void onClick();
    }

    private IconClickListener mIconClickListener;

    private static final String TAG = MKEditText.class.getSimpleName();

    private final int EXTRA_TOUCH_AREA = 50;
    private Drawable mDrawable;
    private boolean touchDown;

    public MKEditText(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public MKEditText(Context context) {
        super(context);
    }

    public MKEditText(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void showRightIcon() {
        mDrawable = ContextCompat.getDrawable(getContext(), R.drawable.ic_android_black_24dp);

        setIcon();
    }

    public void setIconClickListener(IconClickListener iconClickListener) {
        mIconClickListener = iconClickListener;
    }

    private void setIcon() {
        Drawable[] drawables = getCompoundDrawables();

        setCompoundDrawablesWithIntrinsicBounds(drawables[0], drawables[1], mDrawable, drawables[3]);

        setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
        setSelection(getText().length());
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        final int right = getRight();
        final int drawableSize = getCompoundPaddingRight();
        final int x = (int) event.getX();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                if (x + EXTRA_TOUCH_AREA >= right - drawableSize && x <= right + EXTRA_TOUCH_AREA) {
                    touchDown = true;
                    return true;
                }
                break;
            case MotionEvent.ACTION_UP:
                if (x + EXTRA_TOUCH_AREA >= right - drawableSize && x <= right + EXTRA_TOUCH_AREA && touchDown) {
                    touchDown = false;
                    if (mIconClickListener != null) {
                        mIconClickListener.onClick();
                    }
                    return true;
                }
                touchDown = false;
                break;

        }
        return super.onTouchEvent(event);
    }
}
If you want to change the touch area you can change the EXTRA_TOUCH_AREA values default I gave as 50.

And for Enable the button and click listener you can call from your Activity or Fragment like this,

MKEditText mkEditText = (MKEditText) findViewById(R.id.password);
mkEditText.showRightIcon();
mkEditText.setIconClickListener(new MKEditText.IconClickListener() {
            @Override
            public void onClick() {
              // You can do action here for the icon.
               
            }
        });

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