java - 获取 Android ProgressBar 中 secondaryProgress 的宽度

Question

我有一个带有文本的进度条，我在其中覆盖了 onDraw，如下所示:

@Override
protected synchronized void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    Paint textPaint = new Paint();
    textPaint.setAntiAlias(true);
    textPaint.setColor(textColor);
    textPaint.setTextSize(textSize);
    Rect bounds = new Rect();
    textPaint.getTextBounds(text, 0, text.length(), bounds);

    float fx = getX();
    float fy = getY();

    int x = getWidth() / 2 - bounds.centerX();
    int y = getHeight() / 2 - bounds.centerY();
    canvas.drawText(text, x, y, textPaint);
}

我试图将文本定位在次要进度中，但不确定如何获取次要进度的当前宽度，基本上是当前进度的宽度。

Answer 1

现在我只是使用了一个解决方法，基本上我得到了进度的百分比，然后将它乘以密度。我需要将进度条内的文本对齐 20dp:

@Override
protected synchronized void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    Paint textPaint = new Paint();
    textPaint.setAntiAlias(true);
    textPaint.setColor(textColor);
    textPaint.setTextSize(textSize);
    Rect bounds = new Rect();
    textPaint.getTextBounds(text, 0, text.length(), bounds);

    float density = getContext().getResources().getDisplayMetrics().density;
    float percentage = getProgress() / 100.0f;
    float x = getWidth() * percentage - (20 * density);
    float y = getHeight() / 2 - bounds.centerY();
    canvas.drawText(text, x, y, textPaint);
}