Android - onPause ですべてのダイアログを閉じる方法 質問する

DialogFragment を使用していて、すべてを閉じたい場合は、次を使用できます。

/**
 * Dismiss all DialogFragments added to given FragmentManager and child fragments
 */
public static void dismissAllDialogs(FragmentManager manager) {
    List<Fragment> fragments = manager.getFragments();

    if (fragments == null)
        return;

    for (Fragment fragment : fragments) {
        if (fragment instanceof DialogFragment) {
            DialogFragment dialogFragment = (DialogFragment) fragment;
            dialogFragment.dismissAllowingStateLoss();
        }

        FragmentManager childFragmentManager = fragment.getChildFragmentManager();
        if (childFragmentManager != null)
            dismissAllDialogs(childFragmentManager);
    }
}

fun FragmentManager.dismissAllDialogs() {
    fragments.forEach { fragment ->
        (fragment as? DialogFragment)?.dismissAllowingStateLoss()
        fragment.childFragmentManager.dismissAllDialogs()
    }
}