android中文字斜着显示

/**
     * 自定义一个Textview
     * 
     * @author Administrator
     * 
     */
    public class MyTextView extends TextView {

        public MyTextView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        @Override
        protected void onDraw(Canvas canvas) {
            // 倾斜度45,上下左右居中
            canvas.rotate(-45, getMeasuredWidth() / 2, getMeasuredHeight() / 2);
            super.onDraw(canvas);
        }

    }

//xml文件中添加上这个MyTextView 
<com.xhm.test.incline_textview.MyTextView
        android:layout_width="100dip"
        android:layout_height="100dip"
        android:gravity="center"
        android:text="@string/hello_world"/>