private void applyConfig() {
        if (mShowBigImage) {
            mConstraintSetBig.applyTo(mRootLayout);
        } else {
            mConstraintSetNormal.applyTo(mRootLayout);
        }
    }
ConstraintSet to be applied on the normal ConstraintLayout to make the Image bigger.
ConstraintLayoutExamples/constraintlayout/src/main/java/com/example/android/constraintlayoutexamples/ConstraintSetExampleActivity.java