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RecyclerView更新

[英]RecyclerView Update

我有一个要更新的回收站视图,它喜欢从服务器获取发布数据并将其添加到阵列列表并使用notifyDataSetChanged()函数更新Adapter的Instagram Posts,但是当它想要更新时会出现此错误。

android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
    at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:7905)
    at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:1276)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.view.View.requestLayout(View.java:22139)
    at android.support.v7.widget.RecyclerView.requestLayout(RecyclerView.java:3970)
    at android.support.v7.widget.RecyclerView$RecyclerViewDataObserver.onChanged(RecyclerView.java:5060)
    at android.support.v7.widget.RecyclerView$AdapterDataObservable.notifyChanged(RecyclerView.java:11540)
    at android.support.v7.widget.RecyclerView$Adapter.notifyDataSetChanged(RecyclerView.java:6762)
    at com.example.MainActivity$2.run(MainActivity.java:179)
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:257)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
    at java.lang.Thread.run(Thread.java:784)

这是我的代码

AsyncTask.execute(new Runnable() {
        @Override
        public void run() {
            while (true) {
                String name = getHtml.getUrlContent("URL" + something);
                something += 1;
                list.add(new Model(Model.IMAGE_TYPE, name));
                adapter.notifyDataSetChanged();
            }
        }
    });

我以为是因为AsyncTask而发生错误,然后我将其更改为runOnUiThread()函数,但是此方法首先获取所有数据,然后创建View,并且由于该应用启动时间太长。 我能做什么?

您的方法不是最好的方法,可能有很多问题,但是您可以使用

runOnUiThread(new Runnable() {
     void run() {
           adapter.notifyDataSetChanged();
     }
});

其他解决方案是使一个类从AsyncTask扩展出来,重写doInBackground和后执行方法。 在doInBackground()上获取数据并更新ui onPostExecute()

指南: https//developer.android.com/reference/android/os/AsyncTask

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