Android 沿着线绘制文字

public class DrawLineActivity extends BaseActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    public void drawLine(View view){        Paint paint = new Paint();        paint.setColor(Color.GREEN);        paint.setTextSize(20);        paint.setTypeface(Typeface.DEFAULT);        Path path = new Path();        path.moveTo(20, 20); //起点        path.lineTo(100, 20);        path.lineTo(200, 220);        Canvas canvas = new Canvas();        canvas.drawTextOnPath("kkkkkkkkkkk", path, 0, 0, paint);    }}