| zhengtianzuo | 2017-10-28 10:07 |
zhengtianzuo系列-Qml圆形进度条使用Qml的Canvas来画圆形``` onPaint: { var ctx = getContext("2d") ctx.clearRect(0,0,width,height) ctx.beginPath() ctx.strokeStyle = arcBackgroundColor ctx.lineWidth = arcWidth ctx.arc(width/2,height/2,radius,0,Math.PI*2,anticlockwise) ctx.stroke() var r = progress*Math.PI/180 ctx.beginPath() ctx.strokeStyle = arcColor ctx.lineWidth = arcWidth ctx.arc(width/2,height/2,radius,0-90*Math.PI/180,r-90*Math.PI/180,anticlockwise) ctx.stroke() } ```  需要完整代码请访问 QtQuickExamples |
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