电池圈像电池小工具重生 [英] Battery circle like Battery Widget Reborn

问题描述

我想根据电池百分比绘制一个圆圈。我有以下代码：

  Bitmap.Config conf = Bitmap.Config.ARGB_8888; //看到其他conf类型
 Bitmap bmp = Bitmap.createBitmap（200，200，conf）; 
 
 paint mPaint = new Paint（）; 
 mPaint.setDither（true）; 
 mPaint.setColor（Color.BLUE）; 
 mPaint.setStyle（Paint.Style.STROKE）; 
 mPaint.setStrokeJoin（Paint.Join.ROUND）; 
 mPaint.setStrokeCap（Paint.Cap.ROUND）; 
 mPaint.setStrokeWidth（5）; 
 
 circle = new Path（）; 
 circle.addCircle（100，100，level，Direction.CW）; 
 
 Canvas canvas = new Canvas（bmp）; 
 canvas.drawPath（circle，mPaint）; 
  

我想尝试类似于Battery Widget Reborn， ，有人可以帮忙。

编辑：

/ p>

$你应该能够使用 Path.addArc（）来执行此操作。b $ b

解决方案

您只需要定义包围矩形的边界，起始角度和要扫描的度数。

像：

  RectF box = new RectF 0，bmp.getWidth（），bmp.getHeight（））; 
 float sweep = 360 * level * 0.01f; 
 circle.addArc（box，0，sweep）; 
  

I am trying to make draw a circle based on the battery percentage. I have the following code:

Bitmap.Config conf = Bitmap.Config.ARGB_8888; // see other conf types
Bitmap bmp = Bitmap.createBitmap(200, 200, conf);

Paint mPaint = new Paint();
mPaint.setDither(true);
mPaint.setColor(Color.BLUE);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(5);

circle = new Path();
circle.addCircle(100, 100, level, Direction.CW);

Canvas canvas = new Canvas(bmp);
canvas.drawPath(circle, mPaint);

I am trying to get similar to Battery Widget Reborn, where its a circle path drawn based on a percentage, could someone please help.

Edit:

below is a shot of what i am trying to accomplish

解决方案

You should be able to do this with Path.addArc(). You just have to define the bounds of the enclosing rectangle, the start angle, and how many degrees to sweep.

Something like:

RectF box = new RectF(0,0,bmp.getWidth(),bmp.getHeight());
float sweep = 360 * level * 0.01f;
circle.addArc(box, 0, sweep);

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