public?ArcMenu(Context?context,?AttributeSet?attrs,?int?defStyleAttr)?{
		super(context,?attrs,?defStyleAttr);
		TypedArray?a?=?context.getTheme().obtainStyledAttributes(attrs,
				R.styleable.ArcMenu,?defStyleAttr,?0);
		int?default_radius?=?(int)?TypedValue.applyDimension(
				TypedValue.COMPLEX_UNIT_SP,?100,?context.getResources()
						.getDisplayMetrics());
//		mRadius?=?a.getDimensionPixelSize(R.styleable.ArcMenu_radius,
//				default_radius);
		mRadius?=?(int)?a.getDimension(R.styleable.ArcMenu_radius,?default_radius);
		int?pos?=?a.getInt(R.styleable.ArcMenu_position,?RIGHT_BOTTOM);
		switch?(pos)?{
		case?LEFT_TOP:
			mPosition?=?position.LEFT_TOP;
			break;
		case?LEFT_BOTTOM:
			mPosition?=?position.LEFT_BOTTOM;
			break;
		case?RIGHT_TOP:
			mPosition?=?position.RIGHT_TOP;
			break;
		case?RIGHT_BOTTOM:
			mPosition?=?position.RIGHT_BOTTOM;
			break;
		}
		a.recycle();
		Log.i("hendry_arcmenu__",?"position:"?+?mPosition?+?"?radius:"
				+?mRadius);
	}

可以正常讀取的, 上面是我測試的代碼, 你看看是不是a.getXxx ?這個地方參數(shù)問題