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Path 的move可以多次反复使用

2015-07-20 13:57 337 查看
// 绘制箭头



Path rollArrow = new Path();



rollArrow.moveTo(center.x - 3, (int)innerBoundingBox.top + 14);



rollArrow.lineTo(center.x, (int)innerBoundingBox.top + 10);



rollArrow.moveTo(center.x + 3, innerBoundingBox.top + 14);



rollArrow.lineTo(center.x, innerBoundingBox.top + 10);



canvas.drawPath(rollArrow, markerPaint);



// 绘制字符串



String rollText = String.valueOf(rollDegree);



double rollTextWidth = textPaint.measureText(rollText);



canvas.drawText(rollText, (float)(center.x - rollTextWidth / 2), innerBoundingBox.top + textHeight + 2, textPaint);
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