RelativeLayout 에서 사용자 정의 레이아웃

 /**
     *          
     */
    private void initLeftIcon() {
        if (leftIconIV == null) {
            leftIconIV = new ImageView(mContext);
        }
        leftImgParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        leftImgParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        leftImgParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, TRUE); //  
        leftImgParams.addRule(RelativeLayout.CENTER_VERTICAL, TRUE); //    
        if (mLeftIconWidth != 0 && mLeftIconHeight != 0) {
            leftImgParams.width = mLeftIconWidth;
            leftImgParams.height = mLeftIconHeight;
        }
        leftIconIV.setScaleType(ImageView.ScaleType.FIT_CENTER);
        leftIconIV.setId(R.id.id_leftIcon);
        leftIconIV.setLayoutParams(leftImgParams);
        if (mLeftDrawable != null) {
            leftImgParams.setMargins(mLeftIconMarginLeft, 0, 0, 0); //    
            leftIconIV.setImageDrawable(mLeftDrawable);
        }
        addView(leftIconIV);
    }

 /**
     *          
     */
    private void initRightIcon() {
        if (rightIconIV == null) {
            rightIconIV = new ImageView(mContext);
        }
        rightImgParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        rightImgParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, TRUE); //  
        rightImgParams.addRule(RelativeLayout.CENTER_VERTICAL, TRUE); //    
        rightIconIV.setScaleType(ImageView.ScaleType.FIT_CENTER);
        rightIconIV.setId(R.id.id_rightIcon);
        rightIconIV.setLayoutParams(rightImgParams);
        if (mRightIconWidth != 0 && mRightIconHeight != 0) {
            rightImgParams.width = mRightIconWidth;
            rightImgParams.height = mRightIconHeight;
        }
        if (mRightDrawable != null) {
            rightImgParams.setMargins(0, 0, mRightIconMarginRight, 0); //    
            rightIconIV.setImageDrawable(mLeftDrawable);
        }
        addView(rightIconIV);
    }