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我正在尝试使用包含Autocompletetextview的片段构建android应用程序，我希望在显示片段时显示键盘。我已经尝试了一些方法，但是没有成功。

这是我的代码

XML文件

<AutoCompleteTextView
    android:id="@+id/editArea"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:completionThreshold="1"
    android:singleLine="true"
    android:textColor="@android:color/primary_text_light" 
    android:gravity="right" >
</AutoCompleteTextView>

我的Java片段

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

    mLayout = inflater.inflate(R.layout.change_area, null, false);
    area = (AutoCompleteTextView) mLayout.findViewById(R.id.editArea);
    showHideKeyboard(true);
    citiesList = singleToneCitiesList.getInstance().getList();


    mAdapter = new CitiesAdapter(getActivity(),
            R.layout.autocommplete_text, citiesList);
    area.setAdapter(mAdapter);
    area.setThreshold(1);
    area.setOnItemClickListener(this);
    return mLayout;
}



private void showHideKeyboard(boolean showHide) {
    if (showHide) {
        InputMethodManager inputMethodManager = (InputMethodManager) getActivity()
                .getSystemService(Context.INPUT_METHOD_SERVICE);
        area.requestLayout();

        if (inputMethodManager != null) {
            inputMethodManager.toggleSoftInputFromWindow(getActivity()
                    .getCurrentFocus().getApplicationWindowToken(),
                    InputMethodManager.SHOW_FORCED, 0);
        }

    } else {
        InputMethodManager imm = …