Android:根据上下文Context获取Activity

16lz 2021-01-23

根据Context获取Activity：

private Activity getActivity() {    Context context = getContext();    while (!(context instanceof Activity) && context instanceof ContextWrapper) {        context = ((ContextWrapper) context).getBaseContext();}if (context instanceof Activity) {return (Activity) context;}throw new FacebookException("Unable to get Activity.");}

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