How to fix getActionBar method may produce java.lang.NullPointerException

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醉酒成梦
醉酒成梦 2020-12-02 18:06

I am using a toolbar as my actionbar in an activity. I am trying to add the method getActionBar().setDisplayHomeAsUpEnabled(true); to the Activity.java file fo

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  •  予麋鹿
    予麋鹿 (楼主)
    2020-12-02 18:54

    Try this :

    private ActionBar getActionBar() {
        return ((AppCompatActivity) getActivity()).getSupportActionBar();
    }
    

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