library/src/main/java/com/oguzdev/circularfloatingactionmenu/library/SubActionButton.java
public void setContentView(View contentView, FrameLayout.LayoutParams params) {
        if(params == null) {
            params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, Gravity.CENTER);
            final int margin = getResources().getDimensionPixelSize(R.dimen.sub_action_button_content_margin);
            params.setMargins(margin, margin, margin, margin);
        }

        contentView.setClickable(false);
        this.addView(contentView, params);
    }
public void setContentView(View contentView, FrameLayout.LayoutParams params) {
        if(params == null) {
            params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, Gravity.CENTER);
            final int margin = getResources().getDimensionPixelSize(R.dimen.sub_action_button_content_margin);
            params.setMargins(margin, margin, margin, margin);
        }

        contentView.setClickable(false);
        this.addView(contentView, params);
    }
Sets a content view with custom LayoutParams that will be displayed inside this SubActionButton.
@param contentView
@param params