TabbedActivity中使用的fragmnet中的AutoCompleteTextView问题

我创建了一个TabbedActivity作为我的APP的主屏幕，我也创建了一个片段（在TabbedActivity中使用），以便在单击特定选项卡时显示 . 在我使用AutoComplteTextView的片段之一问题是AutoComplteTextView不显示字符串数组列表中提到的任何建议我也没有在日志中得到任何错误任何直接解决此问题代码TabbedActivity从片段被调用的地方

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            if (getArguments().getInt(ARG_SECTION_NUMBER) == 1){
                View viewMakeTransaction = inflater.inflate(R.layout.fragment_make_transaction, container, false);
                return viewMakeTransaction;
            }
            else if(getArguments().getInt(ARG_SECTION_NUMBER) == 2){
                View viewAddCustomer = inflater.inflate(R.layout.fragment_add_customer, container, false);
                return viewAddCustomer;
            }
            else if (getArguments().getInt(ARG_SECTION_NUMBER) == 3){
                View viewViewTransaction = inflater.inflate(R.layout.fragment_view_transaction, container, false);
                return viewViewTransaction;
            }
            else{

                View rootView = inflater.inflate(R.layout.fragment_main, container, false);
                TextView textView = (TextView) rootView.findViewById(R.id.section_label);
                textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
                return rootView;
            }
        }

Fragment（fragment_make_transaction）具有AutocompletTextView的代码

private static final String[] COUNTRIES = new String[]{"India","America"};
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View viewMakeTransactionFragment = inflater.inflate(R.layout.fragment_make_transaction, container, false);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,COUNTRIES);
    final AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) viewMakeTransactionFragment.findViewById(R.id.selectCustomer);
    autoCompleteTextView.setAdapter(adapter);
    return viewMakeTransactionFragment;
}

重新创建问题的步骤1.创建一个新的Android项目 - 选择TabbedActivity和导航样式作为-ActionBarTabs（带有页面查看器），如下图所示TabbedActivity

• 点击完成 - 将创建项目

• 创建一个新的空白片段

• 编辑片段中的代码，如下所示，片段代码如下所示

包demo.com.problem;

import android.content.Context; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup;

public class BlankFragment extends Fragment {@Override public View onCreateView（LayoutInflater inflater，ViewGroup container，Bundle savedInstanceState）{//给这个片段的布局充气返回inflater.inflate（R.layout.fragment_blank，container，false）; }}

• 转到TabbedActivity - 方法内的java代码（onCreateView）使用下面的代码调用片段

当用户在选项卡式活动的第一个屏幕上时，这将调用片段

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    if (getArguments().getInt(ARG_SECTION_NUMBER) == 1){
        View viewMakeTransaction = inflater.inflate(R.layout.fragment_blank, container, false);
        return viewMakeTransaction;
    }
    else{

        View rootView = inflater.inflate(R.layout.fragment_main, container, false);
        TextView textView = (TextView) rootView.findViewById(R.id.section_label);
        textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
        return rootView;
    }
}

运行应用程序一次以确保片段显示在第1部分下

将AutoCompleteTextView添加到片段的步骤

• 片段的XML文件

<!-- TODO: Update blank fragment layout -->
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/hello_blank_fragment" />

<AutoCompleteTextView
    android:id="@+id/textView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

• 片段的Java代码

包demo.com.problem;

import android.content.Context; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v7.widget.AppCompatAutoCompleteTextView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView;

公共类BlankFragment扩展Fragment {AutoCompleteTextView autoCompleteTextView; private static final String [] COUNTRIES = new String [] {“India”，“Aus”};

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment_blank, container, false);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,COUNTRIES);
    autoCompleteTextView = (AutoCompleteTextView) view.findViewById(R.id.textView);
    autoCompleteTextView.setAdapter(adapter);
    // Inflate the layout for this fragment
    return view;
}

}

自动完成文本视图的问题enter image description here