我要评论项目中需要实现一个计步进度的环形progress，当未达到设定目标时，绘制特定弧度（(已实现步数/目标步数)*360°）的圆弧。当已实现步数大于等于目标步数时绘制整个360°圆环。
效果图：
代码实现：
设置已完成步数和目标步数：
public void setstep(int stepdone, int stepgoal) {
this.stepdone = stepdone;
this.stepgoal = stepgoal;
int progess = (stepdone * 100) / stepgoal;
if (progess > 100) {
setprogress(100);
} else {
setprogress(progess);
}
}
设置进度：
public void setprogress(int progress) {
this.mprogress = progress;
this.invalidate();
}
设置画笔属性：
mpaint.setantialias(true); mpaint.setcolor(color.rgb(0xe9, 0xe9, 0xe9)); canvas.drawcolor(color.transparent); mpaint.setstrokewidth(line_width_bg); mpaint.setstyle(paint.style.stroke);
绘制环形和背景：
canvas.drawarc(mrectf, -90, 360, false, mpaint); mpaint.setcolor(color.rgb(0xf8, 0x60, 0x30)); canvas.drawarc(mrectf, -90, ((float) mprogress / mmaxprogress) * 360, false, mpaint);
绘制步数和单位：
mpaint.setstrokewidth(text_width);
string text = stepdone + context.getstring(r.string.step_unit);
int textheight = height / 4;
mpaint.settextsize(textheight);
int textwidth = (int) mpaint.measuretext(text, 0, text.length());
mpaint.setstyle(paint.style.fill);
canvas.drawtext(text, width / 2 - textwidth / 2, height / 2 + textheight / 4, mpaint);
绘制目标步数：
string textgoal = "/" + stepgoal;
int textgoalheight = height / 8;
mpaint.settextsize(textgoalheight);
int textgoalwidth = (int) mpaint.measuretext(textgoal, 0, textgoal.length());
mpaint.setstyle(paint.style.fill);
canvas.drawtext(textgoal, width / 2 - textgoalwidth / 2, height / 2 + textheight / 2
+ textgoalheight, mpaint);
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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