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我正在创建显示自定义对话框的自定义微调控件。为此，我创建了一个名为CustomSpinner的类，另一个名为CustomSpinnerDialog。自定义微调不显示自定义对话框返回的值
问题是，在微调控制器中，对话框中的选定值未打印。我知道该值正确返回，我已经用LogCat和Debug进行了检查。
而在我的自定义对话框中，我为onItemSelectedListener创建了一个接口，所以我的CustomSpinner类实现了此接口。代码如下。
在spinner xml文件中，我将它传递给它。它引用名为CustomSpinner以下类，即延伸的微调：
<com.myproject.CustomSpinner
android:id="@+id/customSpinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="13dp"
android:prompt="@string/my_spinner"/>
这里是CustomSpinner.java类：
public class CustomSpinner extends Spinner implements DialogInterface.OnClickListener, CustomSpinnerDialog.OnItemSelectedListener
{
public OnAddListener mListener = null;
public Context mContext;
public String[] mDataList;
public SpinnerAdapter mAdapter = null;
public interface OnAddListener
{
void onAdd(Spinner inSpinner);
}
public CustomSpinner(Context context, String[] dataList)
{
super(context);
this.mContext = context;
this.mDataList = dataList;
}
public CustomSpinner(Context context, AttributeSet attrs)
{
super(context, attrs);
this.mContext = context;
}
public void setDataList(String[] dataList)
{
this.mDataList = dataList;
}
@Override
public boolean performClick()
{
boolean handled = false;
if (!handled)
{
handled = true;
mAdapter = new SpinnerAdapter(mContext, R.id.spinnerItemText, mDataList);
CustomSpinnerDialog dialog = new CustomSpinnerDialog(mContext, mAdapter, this);
dialog.setOnItemSelectedListener(this);
dialog.setDialogTitle("My custom Dialog");
dialog.show();
}
return handled;
}
@Override
public void onClick(DialogInterface dialog, int which)
{
if(which == DialogInterface.BUTTON_POSITIVE)
{
if(mListener!=null)
mListener.onAdd(this);
}
else
{
setSelection(which);
}
dialog.dismiss();
}
public class SpinnerAdapter extends ArrayAdapter<String>
{
public Context mContext;
public SpinnerAdapter(Context context, int textViewResourceId, String[] objects)
{
super(context, textViewResourceId, objects);
this.mContext = context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.spinnerdialogitem, null);
TextView item = (TextView) view.findViewById(R.id.spinnerItemText);
String text = mDataList[position];
item.setText(text);
return view;
}
}
@Override
public void onItemSelected(String itemValue)
{
int position = mAdapter.getPosition(itemValue);
this.setSelection(3);
}
}
这里是CustomSpinnerDialog.java类：
public class CustomSpinnerDialog extends Dialog implements OnItemClickListener, View.OnClickListener
{
private OnItemSelectedListener onItemSelectedListener;
public DialogInterface.OnClickListener mListener;
public Context mContext;
public interface OnItemSelectedListener
{
public void onItemSelected(String itemValue);
}
public CustomSpinnerDialog(Context context, CustomSpinner.SpinnerAdapter spinnerAdapter, DialogInterface.OnClickListener listener)
{
super(context);
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.custom_spinner);
mListener = listener;
mContext = context;
ListView listView = (ListView) this.findViewById(R.id.listview);
listView.setAdapter(spinnerAdapter);
listView.setOnItemClickListener(this);
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}
public void setOnItemSelectedListener(OnItemSelectedListener listener)
{
this.onItemSelectedListener = listener;
}
@Override
public void onClick(View v)
{
if(mListener != null)
mListener.onClick(this, DialogInterface.BUTTON_POSITIVE);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
if(mListener != null)
mListener.onClick(this, position);
String text = (String) parent.getItemAtPosition(position);
onItemSelectedListener.onItemSelected(text);
}
public void setDialogTitle(String title)
{
TextView titleText = (TextView) this.findViewById(R.id.titleText);
titleText.setText(title);
}
}
那么，微调是在这样一个活动开始：
cSpinner= (CustomSpinner) findViewById(R.id.customSpinner);
cSpinner.setDataList(dataList);
cSpinner.setTag("CustomSpinner");
cSpinner.setOnItemSelectedListener(controller);
我试过didnt解决：
在类CustomSpinner的方法onItemSelected(String itemValue)，我已经试过：
this.setPrompt(itemValue); // Didnt solve
int position = mAdapter.getPosition(itemValue);//Didnt solve
this.setSelection(itemValue);
而且我知道，这个值正确返回。
在此先感谢。