[英]Android Java color touch area on touch event in Dialog
I am new to android development and I was confused in how to implement a simple color around touch area when using a dialog. 我是android开发的新手,使用对话框时如何在触摸区域周围实现简单的颜色感到困惑。 I tried using the TouchPaint.java sample from Android.com/references but could not get the methods to work Dialog.
我尝试使用Android.com/references中的TouchPaint.java示例,但无法使用Dialog方法。
Please help me with links or code snippets. 请通过链接或代码段帮助我。 I wanna color the area around a touch in a Dialog screen and make it redraw itself in the next touch event.
我想在“对话”屏幕中为触摸周围的区域着色,并使其在下次触摸事件中重绘。
int color = bitmap.getPixel((int)event.getX(),(int)event.getX());
RGB.setText(" R:"+Color.red(color)+" G:"+Color.green(color)+" B:"+Color.blue(color));
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