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摘要： When you're writing an application in which you would like to perform specialized drawing and/or control the animation of graphics, you should do so by drawing through aCanvas. A Canvas works for you as a pretense, or interface, to the actual surface upon which your graphics will be drawn — it h 阅读全文

摘要： i invoke findViewById method like this:view view = LayoutInflater.from(this).inflate(R.layout.xxx,null);Customview myView = view.findviewbyid(R.id.xy);....setcontentView(view); but it keeps return null . after searchs, i found that i shoud call findviewbyid() before setcontentview method. you can... 阅读全文