/**
* 计算文本高度
* @param paint
* @return
*/
public int getTextHeight(Paint paint){
Paint.FontMetrics fm = paint.getFontMetrics();
return (int)(Math.abs(fm.ascent) + Math.abs(fm.descent));
}
/**
* 计算文本宽度
* @param paint
* @param str
* @return
*/
public int getTextWidth(TextPaint paint ,String str){
int x = (int)paint.measureText(str);
return x;
}
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