Roman Nurik 的向导寻呼机 - 如何访问收集的数据? [英] Roman Nurik's Wizard pager - how to access collected data?

问题描述

我正在尝试使用 Roman Nurik 的库制作一个向导 (https://plus.google.com/113735310430199015092/posts/6cVymZvn3f4).

I am trying to make a wizard using Roman Nurik's library (https://plus.google.com/113735310430199015092/posts/6cVymZvn3f4).

我无法访问从 Review Fragment 收集的数据.我在 ReviewFragment 中公开了 mCurrentReviewItems 然后我像这样尝试了

I am having trouble accessing the collected data from the Review Fragment. I made mCurrentReviewItems public in ReviewFragment and then I tried it like this

mNextButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        if (mPager.getCurrentItem() == mCurrentPageSequence.size()) {
            ReviewFragment reviewFragment = (ReviewFragment)  mPagerAdapter.getItem(mPager.getCurrentItem());

            for (ReviewItem item : reviewFragment.mCurrentReviewItems)
                Log.d(MainActivity.TAG, "Item: " + item.getDisplayValue());
            }

        } else {
            if (mEditingAfterReview) {
                mPager.setCurrentItem(mPagerAdapter.getCount() - 1);
            } else {
                    mPager.setCurrentItem(mPager.getCurrentItem() + 1);
            }
        }
   }
});

然而它总是为空.

推荐答案

Inside if (mPager.getCurrentItem() == mCurrentPageSequence.size()) { }

对于单页变量:

String data = mWizardModel.findByKey("Sandwich:Bread").getData().getString(Page.SIMPLE_DATA_KEY);

对于自定义页面:

String data = 
mWizardModel.findByKey(THE_KEY).getData().getString(CustomerInfoPage.YOUR_DATA_KEY);

如果要将数据分配回向导，请将其放在 onCreate 末尾的 FragmentActivity 中:

If you want to assign the data back to the wizard, put this at the end of onCreate in FragmentActivity:

Bundle data = new Bundle();
if (!TextUtils.isEmpty(DATA_STRING)) {
    data.putString(Page.SIMPLE_DATA_KEY, DATA_STRING);
    mWizardModel.findByKey("Sandwich:Bread"").resetData(data);
}

关键三明治:面包"来自示例，更改适合您的任何内容.千万不要尝试multi one，我认为它或多或少是一样的.

The key "Sandwich:Bread" is from the example, change whatever suit you. Never try the multi one, I think it is more or less the same.

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