小编sky*_*ker的帖子

我在我的应用程序中有以下布局:

  <?xml version="1.0" encoding="utf-8"?>
  <ScrollView  
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/ScrollView01"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:scrollbars="vertical"
     android:background="@drawable/bbg">
     <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1">
        <TextView
           android:id="@+id/Title"
           android:text="@string/order_status"
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           android:gravity="center_horizontal"
           android:textSize="26sp"
           android:textColor="#000000"
           android:shadowColor="#FFFFFF"
           android:shadowDx="0.5"
           android:shadowDy="0.5"
           android:shadowRadius="1.0"/>
           <LinearLayout
              android:orientation="vertical"
              android:id="@+id/MainStatusWindow"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:layout_margin="10sp"
              android:background="@drawable/rounded_corners">
              <TextView
                 android:id="@+id/RateInfo"
                 android:text=""
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:textSize="16sp"
                 android:layout_margin="10sp"
                 android:textColor="#5C5C5C"/>
              <ImageView
                 android:src="@drawable/line"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:scaleType="fitXY"/>
              <TextView
                 android:id="@+id/OrderStatus"
                 android:text="@string/please_wait"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:gravity="center_horizontal"
                 android:textSize="20sp"
                 android:layout_margin="10sp"
                 android:textColor="#222222"/>
              <ImageView
                 android:src="@drawable/line"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:scaleType="fitXY"/>
              <TextView
                 android:id="@+id/TimerStatus"
                 android:text="0:00"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:gravity="center_horizontal"
                 android:textSize="50sp"
                 android:layout_margin="10sp"
                 android:textColor="#222222"/>
           </LinearLayout>
           <Button android:id="@+id/Cancel"
              android:layout_marginTop="10sp"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="@string/cancel_order"
              android:textSize="18sp"
              android:textColor="#111111" …

如何创建将从远程服务器获取结果的AutoCompleteTextView？

据我所知,我需要实现ArrayAdapter,它必须向服务器发出异步请求.

例如,我有以下AsyncTask:

  private class MyAsyncTask extends AsyncTask<Void, Void, Boolean> {


     @Override
     protected Void doInBackground(Void... params) {
         try {
             //some code that may throws exception
             return true;
         } catch (IOException ex) {
             return false;
         }
     }


     @Override
     protected void onPostExecute(Boolean param){
        if (!param) {
           AlertDialog.Builder builder = new AlertDialog.Builder(MyActivity.this);
           builder.setMessage("Error");
           builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int which) {
                  //I want to retry MyAsyncTask here
              } 
           });
           builder.setNegativeButton("Exit", new DialogInterface.OnClickListener() {
              public void onClick(DialogInterface dialog, int which) {
                 finish();
              } …