加载自动完成文本视图花费大量时间

我正在加载自动完成文本视图与数据写入我的CSV文件，但该文件包含数以千计的数据，因此它需要大量的时间来加载，有什么办法以便它可以在后台完成。我已经使用异步任务，但无法正确实施。加载自动完成文本视图花费大量时间

我的代码：

ArrayAdapter<String> TitleAdapter; 

    protected Void doInBackground(Void... params) { 

    readTitle(); 

    return null; 
} 

public void readTitle() 

{ 
    InputStream is = _context.getResources().openRawResource(
      R.raw.title); 
    InputStreamReader isr = new InputStreamReader(is); 
    BufferedReader br = new BufferedReader(isr, 8192); 
    try { 
     String test; 
     while ((test = br.readLine()) != null) { 
      String[] RowData = test.split(","); 
      String Title = RowData[0]; 

      TitleAdapter.add(Title); 
     } 
     isr.close(); 
     is.close(); 
     br.close(); 

    } catch (IOException e) { 
     e.printStackTrace(); 

    } 

}

我的堆栈跟踪：

03-01 15:06:35.396: ERROR/AndroidRuntime(572): FATAL EXCEPTION: AsyncTask #1 
    03-01 15:06:35.396: ERROR/AndroidRuntime(572): java.lang.RuntimeException: An error occured while executing doInBackground() 
    03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.os.AsyncTask$3.done(AsyncTask.java:200) 
    03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.lang.Thread.run(Thread.java:1096) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572): Caused by: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views. 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.view.ViewRoot.checkThread(ViewRoot.java:2802) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.view.ViewRoot.requestLayout(ViewRoot.java:594) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.view.View.requestLayout(View.java:8125) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.view.View.requestLayout(View.java:8125) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.widget.AbsListView.requestLayout(AbsListView.java:993) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.widget.AdapterView$AdapterDataSetObserver.onChanged(AdapterView.java:790) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:31) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.widget.BaseAdapter.notifyDataSetChanged(BaseAdapter.java:50) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.widget.ArrayAdapter.notifyDataSetChanged(ArrayAdapter.java:247) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.widget.ArrayAdapter.add(ArrayAdapter.java:179) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at com.Salary.Others.ReadFileHelper.readJobTitle(ReadFileHelper.java:111) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at com.Salary.Others.ReadFileHelper.doInBackground(ReadFileHelper.java:57) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at com.Salary.Others.ReadFileHelper.doInBackground(ReadFileHelper.java:1) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at android.os.AsyncTask$2.call(AsyncTask.java:185) 
03-01 15:06:35.396: ERROR/AndroidRuntime(572):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)

我认为这是因为在doinbackground我们不能做任何UI工作。那么，如何处理这个问题，有没有其他的方法..

来源

2012-03-01 zaiff

什么问题，你已经粘贴的问题很长的加载时间或崩溃日志？

如果它的崩溃，你不能从后台线程调用ArrayAdapter.add，如果doInBackground方法是AsyncTask的一部分，您可以添加onPostExecute到AsyncTask将在UI线程上运行，并做add s的方法。

来源

2012-05-30 14:09:19 marmor

加载自动完成文本视图花费大量时间

回答

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