Question

I have a little problem I spend a lot of time now. I hope you can help me. Well, I have an activity witch loads content out of data base in background. It returns asynchrony and modifies my data model. Now I m looking for a good way to inform the controller to update view. I use the notifyDataChanged method but I got an exception.

甲型六氯环己烷不允许从另一个表面上改变观点。我认为,这是一个基本的功能。因此,必须采用一种方式来实施这种功能。

你可以给我一个 h。

我还观看内容观察班。但我不认为是正确的。

增编

Answer 1

请提供您的<条码>主动性中的一些密码。如果你使用<代码>AsynkTask,作为进行数据背景处理的最佳方法,你应使用<代码>onPostExecute(>更新您的国库,因为do InBackground(>> >在背景线上,而不是在国库。

A workaround would be to declare a Handler in your Activity and post a new Runnable in that Handler when you want to acccess the UI, something like this:

    mHandler.post(new Runnable() {
        @Override
        public void run() {
            mAdapter.notifyDataSetChanged();
        }
    });

But this is somehow a "hack" and I wouldn t recommend using this. The best way would be to use the AsyncTask.

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