error: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getIm
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error: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' on a null object reference
错误原因 ，getView（）方法返回为空，仔细查看getview方法，注意添加非空判断即可。
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