szn0212
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szn0212
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When I scroll listview,the footer is flashing
the error message is "AppCompatDelegateImplV7在android.support.v7.app中不是公共的; 无法从外部程序包中对其进行访问",the class MAppCompatDelegateImplV7 extends AppCompatDelegateImplV7,but it can't import the class MAppCompatDelegateImplV7.How can I solve this problem?