我要在Android Studio中制作一个预订假期的应用程序。我要显示客户假期的价格取决于他们选择的住宿类型（3个单选按钮）和他们住的晚数（旋转器）。我有很多尝试进行计算而且我已经有了并且虽然它似乎没有问题，但是计算结果并没有传递给我的其他活动让我显示它。有人能帮助我吗？
MakeBooking活动
public class MakeBooking extends Activity implements View.OnClickListener, AdapterView.OnItemSelectedListener {
Button hButton;
Button reviewButton;
Spinner parkSpin, nightSpin, adultSpin, sixteenSpin, fiveSpin;
String radioAButtonSelected = "";
String radioPButtonSelected = "";
EditText fromDate;
DatePickerDialog fromDatePickerDialog;
SimpleDateFormat dateFormatter;
float cabinPrice = 45;
float caravanPrice = 25;
float tentPrice = 15;
float Price, Price1;
private static final String[] parks={" ","Lothianside Camping and Caravanning Park", "Loch Bannoch Touring Park", "Mckeowns Holiday Park"};
String chosenPark ="not chosen";
private static final String[] nights={" ", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14" };
String chosenNights = "not chosen";
private static final String[] adults={" ", "0", "1", "2", "3", "4", "5" };
String chosenAdults = "not chosen";
private static final String[] under16={" ", "0", "1", "2", "3", "4", "5" };
String chosenSixteen = "not chosen";
private static final String[] under5={" ", "0","1", "2", "3", "4", "5" };
String chosenFive = "not chosen";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_make_booking);
parkSpin= (Spinner) findViewById(R.id.parkSpinner);
parkSpin.setOnItemSelectedListener(this);
ArrayAdapter<String> aa = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,
parks);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
parkSpin.setAdapter(aa);
nightSpin = (Spinner) findViewById(R.id.nightSpinner);
nightSpin.setOnItemSelectedListener(this);
aa = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,
nights);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
nightSpin.setAdapter(aa);
adultSpin = (Spinner) findViewById(R.id.adultSpinner);
adultSpin.setOnItemSelectedListener(this);
aa = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,
adults);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
adultSpin.setAdapter(aa);
sixteenSpin = (Spinner) findViewById(R.id.underSSpinner);
sixteenSpin.setOnItemSelectedListener(this);
aa = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,
under16);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sixteenSpin.setAdapter(aa);
fiveSpin = (Spinner) findViewById(R.id.underFSpinner);
fiveSpin.setOnItemSelectedListener(this);
aa = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,
under5);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
fiveSpin.setAdapter(aa);
hButton = (Button)findViewById(R.id.homeButton);
hButton.setOnClickListener(this);
reviewButton = (Button)findViewById(R.id.bookButton);
reviewButton.setOnClickListener(this);
dateFormatter = new SimpleDateFormat("dd-MM-yyyy", Locale.UK);
findViewsById();
setDateTimeField();
}
private void findViewsById() {
fromDate = (EditText) findViewById(R.id.fromDate);
fromDate.setInputType(InputType.TYPE_NULL);
fromDate.requestFocus();
}
private void setDateTimeField() {
fromDate.setOnClickListener(this);
Calendar newCalendar = Calendar.getInstance();
fromDatePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar newDate = Calendar.getInstance();
newDate.set(year, monthOfYear, dayOfMonth);
fromDate.setText(dateFormatter.format(newDate.getTime()));
}
},newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));
}
public void onAccommodationClicked(View v) {
boolean checked = ((RadioButton) v).isChecked();
switch (v.getId()) {
case R.id.cabinRButton:
if (checked)
radioAButtonSelected = "Cabin";
Price = getCabinPrice(cabinPrice);
break;
case R.id.caravanRButton:
if (checked)
radioAButtonSelected = "Caravan";
Price = getCaravanPrice(caravanPrice);
break;
case R.id.tentRButton:
if (checked)
radioAButtonSelected ="Tent";
Price = getTentPrice(tentPrice);
break;
}
}
private float getCabinPrice(float cabinPrice) {
return (Integer.parseInt(chosenNights) * cabinPrice);
}
private float getCaravanPrice(float caravanPrice) {
return (Integer.parseInt(chosenNights) * caravanPrice);
}
private float getTentPrice(float tentPrice) {
return (Integer.parseInt(chosenNights) * tentPrice);
}
public void onPetClicked(View v) {
boolean checked = ((RadioButton) v).isChecked();
switch (v.getId()) {
case R.id.yesRButton:
if (checked)
radioPButtonSelected = "Yes";
break;
case R.id.noRButton:
if (checked)
radioPButtonSelected = "No";
break;
}
}
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
// Toast.makeText(this, "clicked." + parent.getId(), Toast.LENGTH_LONG).show();
switch (parent.getId()) {
case R.id.parkSpinner:
chosenPark = parks[position];
break;
case R.id.nightSpinner:
chosenNights = nights[position];
break;
case R.id.adultSpinner:
chosenAdults = adults[position];
if (chosenAdults == "0"){
Toast.makeText(this, "Please confirm an adult over 21 is in your party.", Toast.LENGTH_LONG).show();
}
break;
case R.id.underSSpinner:
chosenSixteen = under16[position];
break;
case R.id.underFSpinner:
chosenFive = under5[position];
break;
}
}
public void onNothingSelected(AdapterView<?> parent) {
chosenPark = "";
chosenNights = "";
chosenAdults = "";
chosenSixteen = "";
chosenFive = "";
}
public void onClick(View view) {
Intent intent;
switch (view.getId()) {
case R.id.homeButton:
intent = new Intent(this, MainActivity.class);
startActivity(intent);
break;
case R.id.bookButton:
intent = new Intent(this, ReviewBooking.class);
startActivity(intent);
break;
}
if(view == fromDate) {
fromDatePickerDialog.show();
}
else {
intent = new Intent(this, ReviewBooking.class);
intent.putExtra("chosenPark", chosenPark);
intent.putExtra("chosenNights", chosenNights);
intent.putExtra("chosenAdults", chosenAdults);
intent.putExtra("chosenSixteen", chosenSixteen);
intent.putExtra("chosenFive", chosenFive);
intent.putExtra("radioButtonSelected", radioAButtonSelected);
intent.putExtra("radioPButtonSelected", radioPButtonSelected);
intent.putExtra("fromDate", fromDate.toString());
intent.putExtra("Price1", Price1);
startActivity(intent);
}
}
}
评论预订活动
public class ReviewBooking extends Activity implements View.OnClickListener {
Button hButton;
float Price1;
float cabin, caravan, tent;
TextView radioChoice;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_review_booking);
hButton = (Button) findViewById(R.id.homeButton);
hButton.setOnClickListener(this);
Intent intent = getIntent();
String uir = intent.getStringExtra("chosenPark");
String uir2 = intent.getStringExtra("chosenNights");
String uir3 = intent.getStringExtra("chosenAdults");
String uir4 = intent.getStringExtra("chosenSixteen");
String uir5 = intent.getStringExtra("chosenFive");
String uir6 = intent.getStringExtra("radioAButtonSelected");
String uir7 = intent.getStringExtra("radioPButtonSelected");
String uir8 = intent.getStringExtra("fromDate");
String uir9 = intent.getStringExtra("Price1");
TextView textView = (TextView) findViewById(R.id.parkChoice);
textView.setText(uir);
TextView textView2 = (TextView) findViewById(R.id.nightsChoice);
textView2.setText(uir2);
TextView textView3 = (TextView) findViewById(R.id.adultChoice);
textView3.setText(uir3);
TextView textView4 = (TextView) findViewById(R.id.sixteenChoice);
textView4.setText(uir4);
TextView textView5 = (TextView) findViewById(R.id.fiveChoice);
textView5.setText(uir5);
TextView radioChoice = (TextView) findViewById(R.id.radioChoice);
radioChoice.setText(uir6);
TextView petChoice = (TextView) findViewById(R.id.petChoice);
petChoice.setText(uir7);
TextView dateChoice = (TextView) findViewById(R.id.dateChoice);
dateChoice.setText(uir8);
TextView txtPrice = (TextView) findViewById(R.id.txtPrice);
txtPrice.setText(uir9);
}
public void onClick(View view) {
Intent intent;
intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
}
答案 0 :(得分：1)
您可以使用intent.putExtraString来传递字符串。和类似的方法也可以传递整数long double。