[英]Android Bitmap adjust to Center Text
我正在使用下面的功能從文本獲取位圖。 我無法將文本放置在位圖的中心。 集中所有以下情況的單一規則。
“ 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;
}
請忽略命名函數和變量的差異方式。
經過一整天的努力,我得到了這個文本中心。
在以下鏈接的幫助下
https://stackoverflow.com/a/32081250/5078763
這是為了幫助所有不想像我一樣奮斗的人。
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;
}
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