Android实现计步进度的环形Progress

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。

做对的事情比把事情做对重要。