Question

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），以便在点击特定标签时显示。在我正在使用AutoComplteTextView的片段之一问题是AutoComplteTextView没有显示字符串数组列表中提到的任何建议，我也没有在日志中收到任何错误可以直接解决这个问题码从中调用片段的TabbedActivity

  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和导航样式为-ActionBarTabs（带页面查看器），如下图所示TabbedActivity

点击完成 - 将创建项目
创建新的空白片段
编辑片段中的代码，如下所示片段代码截至目前

package 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;

公共类BlankFragment扩展Fragment { @覆盖 public View onCreateView（LayoutInflater inflater，ViewGroup容器， Bundle savedInstanceState）{ //为此片段扩充布局 return inflater.inflate（R.layout.fragment_blank，container，false）; } }
转到TabbedActivity - 方法内的java代码（onCreateView）使用以下代码调用片段

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

将AutoCompleteTextView添加到片段

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

package 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 [] {＆＃34; India＆＃34;，＆＃34; Aus＆＃34;};
```
@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;
}
```
}

自动填充文字视图enter image description here

TabbedActivity中使用的fragmnet中的AutoCompleteTextView问题

0 个答案: