caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void … on a null object
2016-12-10 11:22
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caused
by: java.lang.NullPointerException: Attempt to invoke virtual method 'void … on a null object reference 类问题
多半是应为 findByViewId控件 写在setContentView(R.layout.);之前 造成的
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