Great God, help Manga, android graphics

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No one to help me? Nobody really help me?
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1 Prepare two maps, one as a background, above the dashboard, and a ring of green represents normal; another representative of abnormal red inner
2 drawing, when drawing up the first drawBitmap the background; calculate abnormal areas, Canvas corresponding to the above points, these points with the Path to link; calling Canvas.clipPath, then drawBitmap the inner painted.
3 count the approximate location of the "normal" / "abnormal" four paintings up

So it is almost
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reference to the second floor youngc527 reply:

1 Prepare two maps, one as a background, above the dashboard, and a green ring represents normal;. represent another abnormal red inner
2 drawing, when drawing up the first drawBitmap the background; calculate abnormal areas, Canvas corresponding to the above points, these points with the Path to link; calling Canvas.clipPath, then drawBitmap the inner painted.
3 count the approximate location of the "normal" / "abnormal" four paintings up

Almost like it

Painted different phone adapter have problems, and there are 3 colors above me, the abnormal area and the normal area is ready to change
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Are big God ah
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The simplest is to draw up their own custom View
With this canvas.drawArc
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Achieve a good canvas painting paint.arcTo then calculate the curvature Although it is not the same design but also can