try make a hidden method in DialogFragment's source become public accessable

DialogFragmentExt.java

package com.meizu.flyme.wallet.widget;

import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;

import java.lang.reflect.Field;

/**
 * Created by linshen on 16-8-13.
 *
 * Taken from the Marshmallow source code, can be found in:
 * https://android.googlesource.com/platform/frameworks/base/+/marshmallow-release/core/java/android/app/DialogFragment.java
 *
 * Some private fields is accessed by reflection.
 */
public class DialogFragmentExt extends DialogFragment {

    private static final Class clz = DialogFragment.class;

    public void showAllowingStateLoss(FragmentManager manager, String tag) {
        //mDismissed = false;
        try {
            Field dismissed = clz.getDeclaredField("mDismissed");
            dismissed.setAccessible(true);
            dismissed.set(this, false);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
        //mShownByMe = true;
        try {
            Field shown = clz.getDeclaredField("mShownByMe");
            shown.setAccessible(true);
            shown.set(this, true);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }

        FragmentTransaction ft = manager.beginTransaction();
        ft.add(this, tag);
        ft.commitAllowingStateLoss();
    }

}