C# 在Xamarin android中的活动之间传递数据
我试图使用C# 在Xamarin android中的活动之间传递数据,c#,android-intent,xamarin.android,C#,Android Intent,Xamarin.android,我试图使用意图在两个活动之间传递数据，但当我试图从上一个活动获取数据时，当我在视图上打印数据时，它只给我一个值0 我搜索了很久，但我发现的所有东西都不存在或已被弃用：( 第一项活动： using System; using Android.App; using Android.Content; using Android.Media; using Android.OS; using Android.Widget; namespace PayrollCalculator { [Activ
意图在两个活动之间传递数据，但当我试图从上一个活动获取数据时，当我在视图上打印数据时，它只给我一个值0
我搜索了很久，但我发现的所有东西都不存在或已被弃用：(
第一项活动：
using System;
using Android.App;
using Android.Content;
using Android.Media;
using Android.OS;
using Android.Widget;
namespace PayrollCalculator
{
[Activity(Label = "FirstActivity")]
public class FirstActivity : Activity
{
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.first_activity_layout);
//payroll month
Spinner spinner = FindViewById<Spinner>(Resource.Id.monthSpinner);
var adapter = ArrayAdapter.CreateFromResource(this, Resource.Array.month_array, Android.Resource.Layout.SimpleSpinnerItem);
adapter.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
spinner.Adapter = adapter;
int monthsRemaining = 11;
if (spinner.SelectedItem.ToString() == "January")
{
monthsRemaining = 11;
}
if (spinner.SelectedItem.ToString() == "Febuary")
{
monthsRemaining = 10;
}
if (spinner.SelectedItem.ToString() == "March")
{
monthsRemaining = 9;
}
if (spinner.SelectedItem.ToString() == "April")
{
monthsRemaining = 8;
}
if (spinner.SelectedItem.ToString() == "May")
{
monthsRemaining = 7;
}
if (spinner.SelectedItem.ToString() == "June")
{
monthsRemaining = 6;
}
if (spinner.SelectedItem.ToString() == "July")
{
monthsRemaining = 5;
}
if (spinner.SelectedItem.ToString() == "August")
{
monthsRemaining = 4;
}
if (spinner.SelectedItem.ToString() == "September")
{
monthsRemaining = 3;
}
if (spinner.SelectedItem.ToString() == "October")
{
monthsRemaining = 2;
}
if (spinner.SelectedItem.ToString() == "November")
{
monthsRemaining = 1;
}
if (spinner.SelectedItem.ToString() == "December")
{
monthsRemaining = 0;
}
//marital status
Spinner spinner2 = FindViewById<Spinner>(Resource.Id.statusSpinner);
var adapter2 = ArrayAdapter.CreateFromResource(this, Resource.Array.status_array, Android.Resource.Layout.SimpleSpinnerItem);
adapter2.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
spinner2.Adapter = adapter2;
//disabled
RadioButton disabledTrue = FindViewById<RadioButton>(Resource.Id.radioDisabledTrue);
RadioButton disabledFalse = FindViewById<RadioButton>(Resource.Id.radioDisabledFalse);
//spouse disabled
EditText errorView = FindViewById<EditText>(Resource.Id.erroreditview);
RadioButton spouseDisabledTrue = FindViewById<RadioButton>(Resource.Id.radioSpouseDisabledTrue);
RadioButton spouseDisabledFalse = FindViewById<RadioButton>(Resource.Id.radioSpouseDisabledFalse);
spouseDisabledTrue.Click += (sender, e) =>
{
disabledSpouseCan();
};
spouseDisabledFalse.Click += (sender, e) =>
{
disabledSpouseCan();
};
//kidsunder18 or in education 2000
EditText kidsU18 = FindViewById<EditText>(Resource.Id.u18kids);
int.TryParse(kidsU18.Text, out int _kidsU18);
//over 18 HE 8000
EditText over18inHE = FindViewById<EditText>(Resource.Id.over18inHE);
int.TryParse(over18inHE.Text, out int _over18inHE);
//disabled 6000
EditText disabledChildren = FindViewById<EditText>(Resource.Id.disabledChildren);
int.TryParse(disabledChildren.Text, out int _disabledChildren);
//disabled HE 14000
EditText disabledChildreninHE = FindViewById<EditText>(Resource.Id.disabledChildreninHE);
int.TryParse(disabledChildreninHE.Text, out int _disabledChildreninHE);
double disabledDeduction = 0.00;
if (disabledTrue.Checked == true)
{
disabledDeduction = 6000.00;
}
double disabledSpouseDeduction = 0.00;
if (spouseDisabledTrue.Checked == true)
{
disabledSpouseDeduction = 3500.00;
}
double spouseNoIncomeDeduction = 0.00;
if (spinner2.SelectedItem.ToString() == "Married and spouse not working")
{
spouseNoIncomeDeduction = 4000.00;
}
double totalFamilyDeductions = (_kidsU18 * 2000) + (_over18inHE * 8000) + (_disabledChildren * 6000) + (_disabledChildreninHE * 14000) + disabledDeduction + disabledSpouseDeduction + spouseNoIncomeDeduction;
Button _firstContinue = FindViewById<Button>(Resource.Id.continuePayroll1);
_firstContinue.Click += (sender, e) =>
{
if (disabledSpouseCan() == false)
{
Toast toast = Toast.MakeText(this, "Check the error above", ToastLength.Short);
toast.Show();
}
else
{
PlayButton_Click(sender, e);
Intent intent = new Intent(this, typeof(SecondActivity));
intent.PutExtra("totalFamilyDeductions", totalFamilyDeductions);
intent.PutExtra("monthsRemaining", monthsRemaining);
StartActivity(intent);
}
};
void PlayButton_Click(object sender, EventArgs e)
{
MediaPlayer _player = MediaPlayer.Create(this, Resource.Drawable.buttonclick);
_player.Start();
}
bool disabledSpouseCan()
{
if ((spinner2.SelectedItem.ToString() == "Single" | spinner2.SelectedItem.ToString() == "Divorce/Widower/Widow") && (spouseDisabledTrue.Checked == true))
{
errorView.Error = "You don't have a spouse";
return false;
}
else
{
errorView.Error = null;
return true;
}
}
}
}
}
使用系统；
使用Android.App；
使用Android.Content；
使用Android.Media；
使用Android.OS；
使用Android.Widget；
命名空间工资计算器
{
[活动（Label=“FirstActivity”）]
公开课活动：活动
{
创建时受保护的覆盖无效（Bundle savedInstanceState）
{
base.OnCreate（savedInstanceState）；
SetContentView（Resource.Layout.first_activity_Layout）；
//工资月
微调器微调器=findviewbyd（Resource.Id.monthpinner）；
var adapter=ArrayAdapter.CreateFromResource（这个，Resource.Array.month\u数组，Android.Resource.Layout.SimpleSpinnerItem）；
SetDropDownViewResource（Android.Resource.Layout.SimpleSpinnerDropDownItem）；
spinner.Adapter=适配器；
整数个月剩余=11；
if（spinner.SelectedItem.ToString（）=“一月”）
{
剩余月数=11；
}
if（spinner.SelectedItem.ToString（）==“Febuary”）
{
剩余月数=10；
}
if（spinner.SelectedItem.ToString（）=“三月”）
{
剩余月数=9；
}
if（spinner.SelectedItem.ToString（）=“四月”）
{
剩余月数=8；
}
if（spinner.SelectedItem.ToString（）=“May”）
{
剩余月数=7；
}
if（spinner.SelectedItem.ToString（）=“June”）
{
剩余月数=6；
}
if（spinner.SelectedItem.ToString（）=“七月”）
{
剩余月数=5；
}
if（spinner.SelectedItem.ToString（）=“八月”）
{
剩余月数=4；
}
if（spinner.SelectedItem.ToString（）=“九月”）
{
剩余月数=3；
}
if（spinner.SelectedItem.ToString（）=“十月”）
{
剩余月数=2；
}
如果（spinner.SelectedItem.ToString（）=“11月”）
{
剩余月数=1；
}
if（spinner.SelectedItem.ToString（）=“12月”）
{
剩余月数=0；
}
//婚姻状况
微调器微调器2=FindViewById（Resource.Id.statusSpinner）；
var adapter2=ArrayAdapter.CreateFromResource（这是Resource.Array.status\u Array，Android.Resource.Layout.SimpleSpinnerItem）；
adapter2.SetDropDownViewResource（Android.Resource.Layout.SimpleSpinnerDropDownItem）；
喷丝头2.适配器=适配器2；
//残废
RadioButton disabledTrue=FindViewById（Resource.Id.radioDisabledTrue）；
RadioButton disabledFalse=FindViewById（Resource.Id.radioDisabledFalse）；
//配偶残疾
EditText errorView=FindViewById（Resource.Id.erroreditview）；
RadioButton SpooseDisabledTrue=FindViewById（Resource.Id.RadiospooseDisabledTrue）；
RadioButton SpooseDisabledFalse=FindViewById（Resource.Id.RadiospooseDisabledFalse）；
喷注禁用True。单击+=（发件人，e）=>
{
禁用Pousecan（）；
};
喷注禁用假。单击+=（发件人，e）=>
{
禁用Pousecan（）；
};
//2000年18岁或18岁以上的儿童
EditText kidsU18=FindViewById（Resource.Id.u18kids）；
int.TryParse（kidsU18.Text，out int_kidsU18）；
//18岁以上的他有8000人
EditText over18inHE=FindViewById（Resource.Id.over18inHE）；
int.TryParse（超过18inhe.Text，out int\u超过18inhe）；
//残疾人6000
EditText disabledChildren=FindViewById（Resource.Id.disabledChildren）；
int.TryParse（disabledChildren.Text，out int\u disabledChildren）；
//他有14000人
EditText disabledChildreninHE=FindViewById（Resource.Id.disabledChildreninHE）；
int.TryParse（disabledChildreninHE.Text，out int\u disabledChildreninHE）；
双失能衰减=0.00；
if（disabledTrue.Checked==true）
{
禁用衰减=6000.00；
}
双失能泄放=0.00；
如果（喷动DisabledTrue.Checked==真）
{
DisabledsPousedEducation=3500.00；
}
双喷嘴喷射=0.00；
如果（spinner2.SelectedItem.ToString（）=“已婚且配偶未工作”）
{
喷动压差=4000.00；
}
双倍家庭总减产=（儿童18*2000）+（儿童超过18*8000）+（残疾儿童*6000）+（残疾儿童*14000）+残疾减产+残疾教育+配偶继续教育；
按钮_firstContinue=findviewbyd（Resource.Id.continuePayroll1）；
_首先继续。单击+=（发件人，e）=>
{
if（disabledSpouseCan（）==false）
{
Toast Toast=Toast.MakeText（这是“检查上面的错误”，ToastLength.Short）；
toast.Show（）；
}
其他的
{
播放按钮\点击（发送者，e）；
意向意向=新意向（此，类型为（第二个活动））；
intent.PutExtra（“totalFamilyDeductions”，totalFamilyDeductions）；
意向书
using System;
using System.Text.RegularExpressions;
using Android.App;
using Android.Content;
using Android.Media;
using Android.OS;
using Android.Text;
using Android.Widget;
namespace PayrollCalculator
{
[Activity(Label = "SecondActivity")]
public class SecondActivity : Activity
{
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.second_activity_layout);
//currentmonthremu
EditText currentMonthRemuneration_ = FindViewById<EditText>(Resource.Id.currentMonthRemuneration);
currentMonthRemuneration_.SetFilters(new IInputFilter[] { new DecimalDigitsInputFilter(12, 2) });
double _currentMonthRemuneration = 0.00;
currentMonthRemuneration_.AfterTextChanged += (sender, args) =>
{
double.TryParse(currentMonthRemuneration_.Text, out _currentMonthRemuneration);
};
//EPF
EditText EPFContribution_ = FindViewById<EditText>(Resource.Id.EPFContribution);
EPFContribution_.SetFilters(new IInputFilter[] { new DecimalDigitsInputFilter(12, 2) });
double _EPFContribution = 0.00;
EPFContribution_.AfterTextChanged += (sender, args) =>
{
double.TryParse(EPFContribution_.Text, out _EPFContribution);
Validate(_EPFContribution, 4000, EPFContribution_);
};
//BIK
EditText BIK_ = FindViewById<EditText>(Resource.Id.BIK);
BIK_.SetFilters(new IInputFilter[] { new DecimalDigitsInputFilter(12, 2) });
double _BIK = 0.00;
BIK_.AfterTextChanged += (sender, args) =>
{
double.TryParse(BIK_.Text, out _BIK);
};
//VOLA
EditText VOLA_ = FindViewById<EditText>(Resource.Id.VOLA);
VOLA_.SetFilters(new IInputFilter[] { new DecimalDigitsInputFilter(12, 2) });
double _VOLA = 0.00;
VOLA_.AfterTextChanged += (sender, args) =>
{
double.TryParse(VOLA_.Text, out _VOLA);
};
double _EPFCombined =+ _EPFContribution;
//this is where I try to get the data from the previous activity to display on my layout
double _totalFamilyDeductions = Intent.GetDoubleExtra("totalFamilyDeductions", 0.00);
TextView textView111 = FindViewById<TextView>(Resource.Id.textView111);
textView111.Text = "" + _totalFamilyDeductions;
Button _secondContinue = FindViewById<Button>(Resource.Id.continuePayroll2);
_secondContinue.Click += (sender, e) =>
{
if (Validate(_EPFContribution, 4000, EPFContribution_) == false)
{
Toast toast = Toast.MakeText(this, "Please make sure EPF is below RM4000", ToastLength.Short);
toast.Show();
}
else
{
int _monthsRemaining = Intent.GetIntExtra("monthsRemaining", 11);
PlayButton_Click(sender, e);
Intent intent = new Intent(this, typeof(ThirdActivity));
intent.PutExtra("currentMonthRemuneration", _currentMonthRemuneration);
intent.PutExtra("EPFContribution", _EPFContribution);
intent.PutExtra("BIK", _BIK);
intent.PutExtra("VOLA", _VOLA);
intent.PutExtra("EPFCombined", _EPFCombined);
intent.PutExtra("totalFamilyDeductions", _totalFamilyDeductions);
intent.PutExtra("monthsRemaining", _monthsRemaining);
StartActivity(intent);
}
};
void PlayButton_Click(object sender, EventArgs e)
{
MediaPlayer _player = MediaPlayer.Create(this, Resource.Drawable.buttonclick);
_player.Start();
}
}
bool Validate(double name, double value, EditText editText)
{
if (name > value)
{
editText.Error = "Cannot be greater than " + value;
return false;
}
else
{
return true;
}
}
}
public class DecimalDigitsInputFilter : Java.Lang.Object, IInputFilter
{
readonly string regexStr = string.Empty;
public DecimalDigitsInputFilter(int digitsBeforeZero, int digitsAfterZero)
{
regexStr = "^[0-9]{0," + digitsBeforeZero + "}([.][0-9]{0," + (digitsAfterZero - 1) + "})?$";
}
public Java.Lang.ICharSequence FilterFormatted(Java.Lang.ICharSequence source, int start, int end, ISpanned dest, int dstart, int dend)
{
Regex regex = new Regex(regexStr);
if (regex.IsMatch(dest.ToString()) || dest.ToString().Equals(""))
{
if (dest.ToString().Length < 12 && source.ToString() != ".")
{
return new Java.Lang.String(source.ToString());
}
else if (source.ToString() == ".")
{
return new Java.Lang.String(source.ToString());
}
else if (dest.ToString().Length >= 13 && dest.ToString().Length <= 20)
{
return new Java.Lang.String(source.ToString());
}
else
{
return new Java.Lang.String(string.Empty);
}
}
return new Java.Lang.String(string.Empty);
}
}
}
private int _kidsU18;
private int _over18inHE;
private int _disabledChildren;
private int _disabledChildreninHE;
double disabledDeduction = 0.00;
double disabledSpouseDeduction = 0.00;
double spouseNoIncomeDeduction = 0.00;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.first_activity_layout);
//payroll month
Spinner spinner = FindViewById<Spinner>(Resource.Id.monthSpinner);
var adapter = ArrayAdapter.CreateFromResource(this, Resource.Array.month_array, Android.Resource.Layout.SimpleSpinnerItem);
adapter.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
spinner.Adapter = adapter;
int monthsRemaining = 11;
if (spinner.SelectedItem.ToString() == "January")
{
monthsRemaining = 11;
}
if (spinner.SelectedItem.ToString() == "Febuary")
{
monthsRemaining = 10;
}
if (spinner.SelectedItem.ToString() == "March")
{
monthsRemaining = 9;
}
if (spinner.SelectedItem.ToString() == "April")
{
monthsRemaining = 8;
}
if (spinner.SelectedItem.ToString() == "May")
{
monthsRemaining = 7;
}
if (spinner.SelectedItem.ToString() == "June")
{
monthsRemaining = 6;
}
if (spinner.SelectedItem.ToString() == "July")
{
monthsRemaining = 5;
}
if (spinner.SelectedItem.ToString() == "August")
{
monthsRemaining = 4;
}
if (spinner.SelectedItem.ToString() == "September")
{
monthsRemaining = 3;
}
if (spinner.SelectedItem.ToString() == "October")
{
monthsRemaining = 2;
}
if (spinner.SelectedItem.ToString() == "November")
{
monthsRemaining = 1;
}
if (spinner.SelectedItem.ToString() == "December")
{
monthsRemaining = 0;
}
//marital status
Spinner spinner2 = FindViewById<Spinner>(Resource.Id.statusSpinner);
var adapter2 = ArrayAdapter.CreateFromResource(this, Resource.Array.status_array, Android.Resource.Layout.SimpleSpinnerItem);
adapter2.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
spinner2.Adapter = adapter2;
spinner2.ItemSelected += Spinner2_ItemSelected;
//disabled
RadioButton disabledTrue = FindViewById<RadioButton>(Resource.Id.radioDisabledTrue);
disabledTrue.CheckedChange += RadioButton_CheckedChanged;
RadioButton disabledFalse = FindViewById<RadioButton>(Resource.Id.radioDisabledFalse);
//spouse disabled
EditText errorView = FindViewById<EditText>(Resource.Id.erroreditview);
RadioButton spouseDisabledTrue = FindViewById<RadioButton>(Resource.Id.radioSpouseDisabledTrue);
spouseDisabledTrue.CheckedChange += RadioButton_CheckedChanged;
RadioButton spouseDisabledFalse = FindViewById<RadioButton>(Resource.Id.radioSpouseDisabledFalse);
spouseDisabledTrue.Click += (sender, e) =>
{
disabledSpouseCan();
};
spouseDisabledFalse.Click += (sender, e) =>
{
disabledSpouseCan();
};
//kidsunder18 or in education 2000
EditText kidsU18 = FindViewById<EditText>(Resource.Id.u18kids);
kidsU18.TextChanged += EditText_TextChanged;
//over 18 HE 8000
EditText over18inHE = FindViewById<EditText>(Resource.Id.over18inHE);
over18inHE.TextChanged += EditText_TextChanged;
//disabled 6000
EditText disabledChildren = FindViewById<EditText>(Resource.Id.disabledChildren);
disabledChildren.TextChanged += EditText_TextChanged;
//disabled HE 14000
EditText disabledChildreninHE = FindViewById<EditText>(Resource.Id.disabledChildreninHE);
disabledChildreninHE.TextChanged += EditText_TextChanged;
Button _firstContinue = FindViewById<Button>(Resource.Id.continuePayroll1);
_firstContinue.Click += (sender, e) =>
{
if (disabledSpouseCan() == false)
{
Toast toast = Toast.MakeText(this, "Check the error above", ToastLength.Short);
toast.Show();
}
else
{
PlayButton_Click(sender, e);
double totalFamilyDeductions = (_kidsU18 * 2000) + (_over18inHE * 8000) + (_disabledChildren * 6000) + (_disabledChildreninHE * 14000) + disabledDeduction + disabledSpouseDeduction + spouseNoIncomeDeduction;
Intent intent = new Intent(this, typeof(SecondActivity));
intent.PutExtra("totalFamilyDeductions", totalFamilyDeductions);
intent.PutExtra("monthsRemaining", monthsRemaining);
StartActivity(intent);
}
};
void PlayButton_Click(object sender, EventArgs e)
{
MediaPlayer _player = MediaPlayer.Create(this, Resource.Drawable.buttonclick);
_player.Start();
}
bool disabledSpouseCan()
{
if ((spinner2.SelectedItem.ToString() == "Single" | spinner2.SelectedItem.ToString() == "Divorce/Widower/Widow") && (spouseDisabledTrue.Checked == true))
{
errorView.Error = "You don't have a spouse";
return false;
}
else
{
errorView.Error = null;
return true;
}
}
}
private void Spinner2_ItemSelected(object sender, AdapterView.ItemSelectedEventArgs e)
{
if (((Spinner)sender).SelectedItem.ToString() == "Married and spouse not working")
{
spouseNoIncomeDeduction = 4000.00;
}
}
private void RadioButton_CheckedChanged(object sender, CompoundButton.CheckedChangeEventArgs e)
{
RadioButton radioButton = sender as RadioButton;
if (e.IsChecked)
{
switch (radioButton.Id)
{
case Resource.Id.radioDisabledTrue:
disabledDeduction = 6000.00;
break;
break;
case Resource.Id.radioSpouseDisabledTrue:
disabledSpouseDeduction = 3500.00;
break;
default:
break;
}
}
}
private void EditText_TextChanged(object sender, TextChangedEventArgs e)
{
EditText editText = sender as EditText;
switch (editText.Id)
{
case Resource.Id.u18kids:
_kidsU18 = int.Parse(editText.Text);
break;
case Resource.Id.over18inHE:
_over18inHE = int.Parse(editText.Text);
break;
case Resource.Id.disabledChildren:
_disabledChildren = int.Parse(editText.Text);
break;
case Resource.Id.disabledChildreninHE:
_disabledChildreninHE = int.Parse(editText.Text);
break;
default:
break;
}
}