android canvas draw mysteriously clipped

My android app draws a chart on a Canvas. It works fine in the simulator. On a real device the chart is clipped to the left 1/5 of the screen. I've tried:

canvas.clipRect(0, 0, canvas.getWidth(), canvas.getHeight(), Regi开发者_运维知识库on.Op.REPLACE);

to clear the clipping. Am I missing something? Does layering have anything to do with this?

Thanks, Gerry

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I changed my order of draw operations and the clip problem went away. (It was superstition.) The original problem gave results on a real device that clipped differently than the simulator.