像电​​池的Widget重生电池圈 [英] Battery circle like Battery Widget Reborn

问题描述

我想使绘制根据电池百分比的圈子。我有以下的code：

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);

我试图得到类似电池的Widget重生的基础上，一个个在那里它是一个圆形的路径绘制的，可能有人请帮忙。

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

编辑：

是一拍什么，我试图完成

below is a shot of what i am trying to accomplish

推荐答案

您应该能够与 Path.addArc（）做到这一点。你只需要定义的外接矩形，起始角的范围，以及多少度扫。

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.

是这样的：

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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