android程序在我手机上总是崩溃,程序运行日志显示错误在以下紫色部分处,存在java.lang.nullPointerException异常,导致每次准备打开电灯时程序都会崩溃。 问了很多人都不知道该怎么解决,我刚刚接触android和arduino实在是没有办法了。希望各位大神能够帮帮我,谢谢 ...
It doesn’t take much Java development experience to learn firsthand what the NullPointerException is about. In fact, one person has highlighted dealing with this as the number one mistake Java ...
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