softkeyboard listner layout

MyLayout.java

package com.zapbuild.myi.ui.view;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.LinearLayout;

public class MyLayout extends LinearLayout {

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

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

private OnSoftKeyboardListener onSoftKeyboardListener;

@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
    if (onSoftKeyboardListener != null) {
        final int newSpec = MeasureSpec.getSize(heightMeasureSpec); 
        final int oldSpec = getMeasuredHeight();
        if (oldSpec > newSpec){
            onSoftKeyboardListener.onShown();
        } else {
            onSoftKeyboardListener.onHidden();
        }
    }
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

public final void setOnSoftKeyboardListener(final OnSoftKeyboardListener listener) {
    this.onSoftKeyboardListener = listener;
}

public interface OnSoftKeyboardListener {
    public void onShown();
    public void onHidden();
}

}