android设置listAdapter报错Attempt to invoke virtual method ‘int android.view.View.getImportantForAcces

android 报错： java.lang.NullPointerException: Attempt to invoke virtual method ‘int android.view.View.getImportantForAccessibility()’ on a null object reference 这是我学习android入门基础看的视频 点击开始运行项目 出来模拟器报错open

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