indicatorLibrary

	<com.viewpagerindicator.CirclePageIndicator
    	android:id="@+id/indicator"
    	android:layout_width="fill_parent"
    	android:layout_height="wrap_content"
    	android:layout_alignParentBottom="true"
    	android:layout_marginBottom="20dp"
    	app:spaceing="6"
    	android:padding="10dp" />

	private int spaceing = 3;


    spaceing = a.getInt(R.styleable.CirclePageIndicator_spaceing, 3);

	// final float threeRadius = mRadius * 3;// 改到了下一行
    final float threeRadius = mRadius * spaceing;