Android 位图调整为中心文本

Question

我正在使用以下函数从文本中获取位图。我无法将文本定位在位图的中心。将以下所有情况居中的单一规则。

"I" "W" "WM" "IQ"

Bitmap DevImjBitmapFrmTxtFnc(String TxtSrgPsgVal)
{
    int TxtSyzVal = 100;
    Paint PenPytVaj = new Paint(ANTI_ALIAS_FLAG);
    PenPytVaj.setTextSize(TxtSyzVal);
    PenPytVaj.setColor(Color.BLUE);
    PenPytVaj.setTextAlign(Paint.Align.CENTER);

    float TxtTitYcoVal = -PenPytVaj.ascent(); // ascent() is negative
    int ImjWytVal = (int) (PenPytVaj.measureText(TxtSrgPsgVal) + 0.0f); // round
    int ImjHytVal = (int) (TxtTitYcoVal + PenPytVaj.descent() + 0.0f);
    Bitmap ImjBitmapVaj = Bitmap.createBitmap(ImjWytVal + TxtSyzVal, ImjHytVal + TxtSyzVal, Bitmap.Config.ARGB_8888);

    Canvas ImjCanvasVaj = new Canvas(ImjBitmapVaj);
    ImjCanvasVaj.drawText(TxtSrgPsgVal, 0, TxtTitYcoVal, PenPytVaj);
    return ImjBitmapVaj;
}

请忽略使用的函数和变量的命名差异方式。

Answer 1

经过一整天的努力，我得到了这个文本中心。
在下面的帮助下 link

这是为了帮助所有我不想像我一样挣扎的人。

Bitmap DevImjBmpFrmTxtFnc(String TxtSrgPsgVal)
{
    int TxtSyzVal = 100;
    TextPaint PenPytVaj = new TextPaint(ANTI_ALIAS_FLAG);
    PenPytVaj.setTextSize(TxtSyzVal);
    PenPytVaj.setColor(Color.BLACK);
    PenPytVaj.setTextAlign(Paint.Align.LEFT);

    Rect TxtRctVar = new Rect();
    PenPytVaj.getTextBounds(TxtSrgPsgVal, 0, TxtSrgPsgVal.length(), TxtRctVar);
    Bitmap TxtImjBmpVar = Bitmap.createBitmap(TxtSyzVal * 2, TxtSyzVal * 2, Bitmap.Config.ARGB_8888);

    Canvas ImjCanvasVaj = new Canvas(TxtImjBmpVar);
    float XcoVal = ImjCanvasVaj.getWidth() / 2 - TxtRctVar.width() / 2  - TxtRctVar.left;
    float YcoVal = ImjCanvasVaj.getHeight() / 2 + TxtRctVar.height() / 2  - TxtRctVar.bottom;
    ImjCanvasVaj.drawText(TxtSrgPsgVal, XcoVal, YcoVal, PenPytVaj);
    return TxtImjBmpVar;
}

Android 位图调整为中心文本

Android Bitmap adjust to Center Text

java

android

text

center

bitmap