我无法从此类的共享偏好中获取价值。 getDefaultSharedPreferences给出错误“PreferenceManager类型中的方法getDefaultSharedPreferences(Context)不适用于参数(HandlingXMLStuff)”
我可以从我的主类中获取值,但我无法将其传递给下面显示的类。
public class HandlingXMLStuff extends DefaultHandler {
String Units;
private XMLDataCollected info = new XMLDataCollected();
public String getInformation() {
return info.dataToString();
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
SharedPreferences prefs = PreferenceManager
.getDefaultSharedPreferences(this);
String unit = prefs.getString("unitsofmeasure", "Fahrenheit");
Log.d("HandlingXMLStuff", "test" + unit);
// if (Units == "Farenheit") {
if (localName.equals("city")) {
String city = attributes.getValue("data");
info.setCity(city);
Log.d("DeskClockActivity", "test" + city);
} else if (localName.equals("temp_f")) {
String t = attributes.getValue("data");
int temp = Integer.parseInt(t);
info.setTemp(temp);
}
/*
* }/* else if (unit == "C") { if (localName.equals("city")) { String
* city = attributes.getValue("data"); info.setCity(city); } else if
* (localName.equals("temp_c")) { String t =
* attributes.getValue("data"); int temp = Integer.parseInt(t);
* info.setTemp(temp); } }
*/
}
}
答案 0 :(得分:0)
getDefaultSharedPreferences正在采用上下文参数,而DefaultHandler类不是上下文。