我正在制作一个FuelLog应用程序,用于记录加油站的燃油加注情况。我有onItemClick修改每个项目的ArrayList中的对象属性的麻烦。换句话说,我想要做的就是点击列表中的某个燃油日志并对其进行编辑。在Android中编辑Listview
@Override
public void onItemClick(AdapterView<?> arg0, View view, int position, long id) {
}
我被困在onItemClick函数写什么。 FuelLog是一个具有多个属性的对象,包括:里程表读数,燃料类型,燃料成本等。
以下代码是ListView和ArrayList的声明,用于保存FuelLogs。
private Button button;
private ListView oldTweetsList;
private static final String FILENAME = "FuelTracker.sav";
private ArrayList<FuelLog> FuelLogs = new ArrayList<FuelLog>();
ArrayAdapter<FuelLog> adapter;
该信息通过alertDialogBuilder输入。
alertDialogBuilder
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// get user input and set it to result
//editTextMainScreen.setText(input.getText());
setResult(RESULT_OK);
String station = input.getText().toString();
String odometer = input1.getText().toString();
String fuelGrade = input2.getText().toString();
String fuelAmount = input3.getText().toString();
String fuelUnitCost = input4.getText().toString();
String fuelCost = input5.getText().toString();
String date = input6.getText().toString(); //Date
FuelLog log = new FuelLog(date, station, odometer, fuelGrade, fuelAmount, fuelUnitCost, fuelCost);
FuelLogs.add(log);
adapter.notifyDataSetChanged();
saveInFile();
finish();
}
})
这里是类FuelLog。
public class FuelLog {
public String date;
public String station;
public String odometer;
public String fuelGrade;
public String fuelAmount;
public String fuelUnitCost;
public String fuelCost;
public FuelLog (String date, String station, String odometer, String fuelGrade, String fuelAmount, String fuelUnitCost, String fuelCost) {
this.date = date;
this.station = station;
this.odometer = odometer;
this.fuelGrade = fuelGrade;
this.fuelAmount = fuelAmount;
this.fuelUnitCost = fuelUnitCost;
this.fuelCost = fuelCost;
}
@Override
public String toString(){
//return date.toString() + " | " + message;
return "Date: " + date + "\nStation: " + station + "\nOdometer: " + odometer + "\nFuel Grade: " + fuelGrade + "\nFuel Amount: " + fuelAmount + "\nFuel Unit Cost: " + fuelUnitCost + "\nFuel Cost: " + fuelCost;
}
}
任何帮助将不胜感激!
我还是不明白你的要求。 – TheSunny
我正在构建一个FuelLogger应用程序,用于在加油站保存燃油加注日志。我试图做的是能够点击列表中的其中一个燃油日志并对其进行编辑。 – IC2D
你想让别人为你写代码吗? – TheSunny