以下是我的完整解决方案。我有以下enum:

public enum HTTPMethod {GET, HEAD}

用于后续课程

public class WebAddressRecord {
...
public HTTPMethod AccessMethod = HTTPMethod.HEAD;
...

使用HTTPMethod enum-member设置微调器的代码:

    Spinner mySpinner = (Spinner) findViewById(R.id.spinnerHttpmethod);
    ArrayAdapter<HTTPMethod> adapter = new ArrayAdapter<HTTPMethod>(this, android.R.layout.simple_spinner_item, HTTPMethod.values());
    mySpinner.setAdapter(adapter);
    int selectionPosition= adapter.getPosition(webAddressRecord.AccessMethod);
    mySpinner.setSelection(selectionPosition);

其中R.id.spinnerHttpmethod定义在布局文件中，而android.R.layout. httpmethod定义在布局文件中。Simple_spinner_item由android-studio下发。

I had the same issue when trying to select the correct item in a spinner populated using a cursorLoader. I retrieved the id of the item I wanted to select first from table 1 and then used a CursorLoader to populate the spinner. In the onLoadFinished I cycled through the cursor populating the spinner's adapter until I found the item that matched the id I already had. Then assigned the row number of the cursor to the spinner's selected position. It would be nice to have a similar function to pass in the id of the value you wish to select in the spinner when populating details on a form containing saved spinner results.

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {  
  adapter.swapCursor(cursor);

  cursor.moveToFirst();

 int row_count = 0;

 int spinner_row = 0;

  while (spinner_row < 0 || row_count < cursor.getCount()){ // loop until end of cursor or the 
                                                             // ID is found 

    int cursorItemID = bCursor.getInt(cursor.getColumnIndexOrThrow(someTable.COLUMN_ID));

    if (knownID==cursorItemID){
    spinner_row  = row_count;  //set the spinner row value to the same value as the cursor row 

    }
cursor.moveToNext();

row_count++;

  }

}

spinner.setSelection(spinner_row ); //set the selected item in the spinner

}

假设你的Spinner名为mSpinner，它包含一个选项:"some value"。

要查找并比较“some value”在Spinner中的位置，请使用以下命令:

String compareValue = "some value";
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.select_state, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSpinner.setAdapter(adapter);
if (compareValue != null) {
    int spinnerPosition = adapter.getPosition(compareValue);
    mSpinner.setSelection(spinnerPosition);
}

我正在使用一个自定义适配器，这段代码就足够了:

yourSpinner.setSelection(arrayAdapter.getPosition("Your Desired Text"));

所以，你的代码片段将是这样的:

void setSpinner(String value)
    {
         yourSpinner.setSelection(arrayAdapter.getPosition(value));
    }

根据Merrill的回答，我想出了这个单线解决方案……它不是很漂亮，但是你可以责怪那些维护Spinner代码的人忽略了包含一个这样做的函数。

mySpinner.setSelection(((ArrayAdapter<String>)mySpinner.getAdapter()).getPosition(myString));

你会得到一个警告，关于ArrayAdapter<String>的强制转换是如何未选中的…实际上，您可以像Merrill那样使用ArrayAdapter，但这只是将一个警告交换为另一个警告。

如果警告导致问题，只需添加

@SuppressWarnings("unchecked")

到方法签名或语句之上。

你也可以用这个，

String[] baths = getResources().getStringArray(R.array.array_baths);
mSpnBaths.setSelection(Arrays.asList(baths).indexOf(value_here));