Android 编辑文本画错了线

我想做一个笔记编辑。它将有一个带行的

EditText

。这是我的密码：

LinedEditText.java

public class LinedEditText extends EditText {


    private Rect mRect;
    private Paint mPaint;

    public LinedEditText(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        mRect = new Rect();
        mPaint = new Paint();
        mPaint.setStyle(Paint.Style.FILL_AND_STROKE);
        mPaint.setColor(Color.BLUE); //SET YOUR OWN COLOR HERE

    }
    @Override
    protected void onDraw(Canvas canvas) {
        //int count = getLineCount();

        int height = getHeight();
        int line_height = getLineHeight();

        int count = height / line_height;

        if (getLineCount() > count)
            count = getLineCount();

        Rect r = mRect;
        Paint paint = mPaint;

        int baseline = getLineBounds(0, r);//first line
        for (int i = 0; i < count; i++) {

            canvas.drawLine(r.left, baseline + 1, r.right, baseline + 1, paint);
            baseline += getLineHeight();//next line
        }

        super.onDraw(canvas);
    }

结果：

我犯了什么错误

---

谢谢…

正在从向下的光标位置绘制直线。只需使用重力将光标的默认位置从垂直居中移动到左上角：

text.setGravity(Gravity.NO_GRAVITY);

或者默认情况下为所有LinedItems设置：

public LinedEditTexts(Context context) {
    super(context);
    setGravity(Gravity.NO_GRAVITY); // or Gravity.TOP | Gravity.LEFT
    ...
}

---

对不起，我不能早点测试。谢谢

public LinedEditTexts(Context context) {
    super(context);
    setGravity(Gravity.NO_GRAVITY); // or Gravity.TOP | Gravity.LEFT
    ...
}