getting selected radiobutton text as string

getting selected radiobutton text as string - java

I have created two activity one for registration details and another one for showing the value user has entered. But when I tried to get the value of radiobutton from the radiogroup selected. It doesn't show any error but when I debug and run in my phone.
And clicked the signup button
It show app stopped working start again message
My MainActivity.java :
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
Button signUpButton,signInButton;
TextView userTimeJoining, dateOfBirth;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
signInButton = findViewById(R.id.signinbutton);
signInButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
signUpButton = findViewById(R.id.signupbutton);
signUpButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent gotoRegAct = new Intent(MainActivity.this, RegistrationActivity.class);
startActivity(gotoRegAct);
}
});
}
}
My RegistrationActivity.java :
import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;
import java.util.Calendar;
public class RegistrationActivity extends AppCompatActivity {
String courseList[] = {"Java","Python", "Android", "Kotlin"};
Button submitButton;
EditText nameOfUser, userGmail, userName, userPassword;
TextView userDateOfBirth, userTimeOfJoining;
Spinner mySpinnerForCourse;
RadioGroup genderSelected;
RadioButton selectedRadiobutton;
String setTime;
String setDate;
String setGender=" ";
int itemNoSelected;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registration);
submitButton = findViewById(R.id.submitButton);
nameOfUser = findViewById(R.id.nameofuser);
userGmail = findViewById(R.id.usergmail);
userName = findViewById(R.id.username);
userPassword = findViewById(R.id.userpassword);
userDateOfBirth = findViewById(R.id.userdateofbirth);
userTimeOfJoining = findViewById(R.id.usertimeofjoining);
mySpinnerForCourse = findViewById(R.id.usercourse);
genderSelected = findViewById(R.id.usergender);
//This is the code which is not working
int selectedRadioButtonId = genderSelected.getCheckedRadioButtonId();
selectedRadiobutton = (RadioButton) findViewById(selectedRadioButtonId);
setGender = selectedRadiobutton.getText().toString();
ArrayAdapter<String> arrayAdapterForCourse = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item,courseList);
mySpinnerForCourse.setAdapter(arrayAdapterForCourse);
mySpinnerForCourse.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
itemNoSelected = i;
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
userTimeOfJoining.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Calendar calendar = Calendar.getInstance();
int hh = calendar.get(Calendar.HOUR);
int mm = calendar.get(Calendar.MINUTE);
TimePickerDialog timePickerDialog = new TimePickerDialog(RegistrationActivity.this, new TimePickerDialog.OnTimeSetListener() {
#Override
public void onTimeSet(TimePicker timePicker, int i, int i1) {
setTime = i+" : "+i1;
userTimeOfJoining.setText(setTime);
}
},
hh, mm, false);
timePickerDialog.show();
}
});
userDateOfBirth.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Calendar calendar = Calendar.getInstance();
int dd = calendar.get(Calendar.DAY_OF_MONTH);
int mm = calendar.get(Calendar.MONTH);
int yy = calendar.get(Calendar.YEAR);
DatePickerDialog datePickerDialog = new DatePickerDialog(RegistrationActivity.this, new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {
setDate = i2+" / "+i1+" / "+i;
userDateOfBirth.setText(setDate);
}
}, yy, mm, dd);
datePickerDialog.show();
}
});
submitButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent gotoShowInfo = new Intent(RegistrationActivity.this, ShowInfo.class);
Bundle bundleforenteredvalue = new Bundle();
bundleforenteredvalue.putString("enteredname",nameOfUser.getText().toString());
bundleforenteredvalue.putString("enteredgmail",userGmail.getText().toString());
bundleforenteredvalue.putString("enteredusername",userName.getText().toString());
bundleforenteredvalue.putString("enteredpassword",userPassword.getText().toString());
bundleforenteredvalue.putString("dateselected",setDate);
bundleforenteredvalue.putString("timeselected",setTime);
bundleforenteredvalue.putString("genderselected",setGender);
bundleforenteredvalue.putString("courseselected",courseList[itemNoSelected]);
gotoShowInfo.putExtras(bundleforenteredvalue);
startActivity(gotoShowInfo);
}
});
}
}
My ShowInfo.java :
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class ShowInfo extends AppCompatActivity {
TextView nameOfUserEntered, usernameEntered, passwordEntered,gmailEntered, genderSelected, courseSelected, dateOFJoinSelected, timeOfJoinSelected;
Button signInButtonAgain;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_info);
Bundle getValue = getIntent().getExtras();
String getnameentered = getValue.getString("enteredname");
String getenteredGmail = getValue.getString("enteredgmail");
String getenteredUsername = getValue.getString("enteredusername");
String getenteredPassword = getValue.getString("enteredpassword");
String getdateSelected = getValue.getString("dateselected");
String gettimeSelected = getValue.getString("timeselected");
String getgenderSelected = getValue.getString("genderselected");
String getcourseSelected = getValue.getString("courseselected");
nameOfUserEntered = findViewById(R.id.nameofuserentered);
usernameEntered = findViewById(R.id.usernameentered);
passwordEntered = findViewById(R.id.passwordentered);
gmailEntered = findViewById(R.id.gmailentered);
genderSelected = findViewById(R.id.genderselected);
courseSelected = findViewById(R.id.courseselected);
dateOFJoinSelected = findViewById(R.id.dateofjoinselected);
timeOfJoinSelected = findViewById(R.id.timeofjoinselected);
signInButtonAgain = findViewById(R.id.signinbuttonagain);
nameOfUserEntered.setText("Welcome "+ getnameentered);
usernameEntered.setText("Your username is "+getenteredUsername);
passwordEntered.setText("Your password is "+getenteredPassword);
gmailEntered.setText("Your gmail is "+getenteredGmail);
genderSelected.setText("Your gender is the "+getgenderSelected);
courseSelected.setText("You selected for the "+getcourseSelected+" Course");
dateOFJoinSelected.setText("your joinig date is "+getdateSelected);
timeOfJoinSelected.setText("Time of your duty is starts from "+gettimeSelected);
signInButtonAgain.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent gotoMainmenu = new Intent(ShowInfo.this, MainActivity.class);
startActivity(gotoMainmenu);
}
});
}
}
In registration activity I've added a comment by only that code my app show the error message. If I remove the radiobutton code and the getString String. It works properly and then it doesn't show app stopped working message.
So why I'm not able to pass the value of the radiobutton string from one activity to another.

Try this may be your radiobutton id returns -1 if no values are selected in radio group.
int chk_gender = rg_gender.getCheckedRadioButtonId();
if (chk_gender != -1) {
Gender = ((RadioButton)findViewById(chk_gender)).getText().toString();
}
else
{
Gender = "";
}
EDITED
rg_gender.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId != -1) {
Gender = ((RadioButton)findViewById(checkedId)).getText().toString();
}
else
{
Gender = "";
}
}
});

In your xml layout ,did you checked TRUE any radio button ?
You should get the selected radio button value on click of submit button.It will update your setGender string with most recent value.
for your app crash , Please post your logcat error while app crash.

Related

(Android) When Back pressed, Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference

I've been working on a Android Project (A Basic College Information App), I have three main activities, the user goes in like, Goal/Course Select activity-> CollegeList activity-> College Details Activity. Now When I press back on College Details Activity it crashes with this Error:
Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference
Below are the files/code which I think might be responsible for this.....
CollegeListActivity.java file
package com.anurag.college_information.activities;
import static com.anurag.college_information.activities.CareerGoalActivity.GOAL;
import static com.anurag.college_information.activities.CareerGoalActivity.SHARED_PREFS;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.anurag.college_information.R;
import com.anurag.college_information.adapters.RecyclerAdapter;
import com.anurag.college_information.models.ModelClass;
import java.util.ArrayList;
import java.util.List;
public class CollegeListActivity extends AppCompatActivity {
private RecyclerAdapter.RecyclerViewClickListener listener;
//ListView collegeList;
TextView collegeListTitle;
Button courseChange;
RecyclerView recyclerView;
LinearLayoutManager LayoutManager;
RecyclerAdapter recyclerAdapter;
List<ModelClass> cList;
String courseName;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_college_list);
collegeListTitle = findViewById(R.id.college_list_title);
courseChange = findViewById(R.id.btn_change_course);
//collegeListTitle.setText(goal + "Colleges");
collegeListTitle.setText(getIntent().getStringExtra("Title") + " Colleges");
initData();
initRecyclerView();
//collegeList = findViewById(R.id.lv_college_list);
courseChange.setTransformationMethod(null);
courseChange.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SharedPreferences sharedPreferences = getSharedPreferences(SHARED_PREFS, MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.clear();
editor.apply();
Intent i = new Intent(CollegeListActivity.this, CareerGoalActivity.class);
startActivity(i);
//finish();
}
});
}
private void initData() {
cList = new ArrayList<>();
courseName = getIntent().getStringExtra("Title");
switch (courseName) {
case "BE/BTech":
cList.add(new ModelClass("https://images.static-collegedunia.com/public/college_data/images/campusimage/1479294300b-5.jpg", "A.P. Shah College of Engineering", "Thane", "8.0"));
break;
case "Pharmacy":
cList.add(new ModelClass("https://images.static-collegedunia.com/public/college_data/images/campusimage/14382400753.jpg", "Bombay College Of Pharmacy", "Mumbai", "9.0"));
break;
}
}
private void initRecyclerView() {
setOnClickListener();
recyclerView = findViewById(R.id.recycler_view);
LayoutManager = new LinearLayoutManager(this);
LayoutManager.setOrientation(RecyclerView.VERTICAL);
recyclerView.setLayoutManager(LayoutManager);
recyclerAdapter = new RecyclerAdapter(cList, listener);
recyclerView.setAdapter(recyclerAdapter);
}
private void setOnClickListener() {
listener = new RecyclerAdapter.RecyclerViewClickListener() {
#Override
public void onClick(View v, int position) {
Intent i = new Intent(CollegeListActivity.this, CollegeDetailsActivity.class);
startActivity(i);
}
};
}
#Override
public void onBackPressed() {
new AlertDialog.Builder(this)
.setMessage("Are you sure you want to exit?")
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
finish();
}
})
.setNegativeButton("No", null)
.show();
}
}
RecyclerAdapter.java
package com.anurag.college_information.adapters;
import android.content.Context;
import android.content.Intent;
import android.telecom.Call;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.anurag.college_information.activities.CollegeDetailsActivity;
import com.anurag.college_information.models.ModelClass;
import com.anurag.college_information.R;
import com.squareup.picasso.Picasso;
import java.util.List;
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ViewHolder> {
private List<ModelClass> collegeList ;
private RecyclerViewClickListener listener;
List<String> imageUrl, collegeName, collegeLocation, collegeRating;
public RecyclerAdapter(List<ModelClass> collegeList, RecyclerViewClickListener listener){
this.collegeList=collegeList;
this.listener = listener;
}
#NonNull
#Override
public RecyclerAdapter.ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.college_list_single_row, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull RecyclerAdapter.ViewHolder holder, int position) {
String imageLink = collegeList.get(position).getImageLink();
//int img = collegeList.get(position).getCollegeImage();
String cName = collegeList.get(position).getCollegeName();
String cRating = collegeList.get(position).getCollegeRating();
String cLocation = collegeList.get(position).getLocation();
Picasso.get().load(imageLink).into(holder.imageView);
//holder.setData(img, cName, cRating);
holder.setData(imageLink, cName, cLocation ,cRating);
}
#Override
public int getItemCount() {
return collegeList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private ImageView imageView;
private TextView collegeName, collegeRating, collegeLocation;
public ViewHolder(#NonNull View itemView) {
super(itemView);
imageView = itemView.findViewById(R.id.college_image);
collegeName = itemView.findViewById(R.id.college_name);
collegeRating = itemView.findViewById(R.id.college_rating);
collegeLocation = itemView.findViewById(R.id.college_location);
itemView.setOnClickListener(this);
}
public void setData(String imageLink, String cName, String cLocation, String cRating) {
//imageView.setImageResource(img);
Picasso.get().load(imageLink).error(R.drawable.error).into(imageView);
collegeName.setText(cName);
collegeRating.setText(cRating);
collegeLocation.setText(cLocation);
}
#Override
public void onClick(View v) {
listener.onClick(v, getAdapterPosition());
Intent i = new Intent(v.getContext(), CollegeDetailsActivity.class);
i.putExtra("collegeImage", collegeList.get(getAdapterPosition()).getImageLink());
i.putExtra("collegeName", collegeList.get(getAdapterPosition()).getCollegeName());
i.putExtra("collegeRating", collegeList.get(getAdapterPosition()).getCollegeRating());
i.putExtra("collegeLocation", collegeList.get(getAdapterPosition()).getLocation());
v.getContext().startActivity(i);
}
}
public interface RecyclerViewClickListener{
void onClick(View v, int position);
}
}
CollegeDetailsActivity.java
package com.anurag.college_information.activities;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import com.anurag.college_information.R;
import com.squareup.picasso.Picasso;
public class CollegeDetailsActivity extends AppCompatActivity {
Button btnApply;
ImageView dCollegeImage;
TextView dCollegeName, dCollegeRating, dCollegeLocation;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_college_details);
dCollegeImage = findViewById(R.id.details_college_image);
dCollegeName = findViewById(R.id.details_college_name);
dCollegeRating = findViewById(R.id.details_college_rating);
dCollegeLocation = findViewById(R.id.details_college_location);
btnApply = findViewById(R.id.btn_apply);
Intent i = getIntent();
String cn = i.getStringExtra("collegeName");
String cr = i.getStringExtra("collegeRating");
String ci = i.getStringExtra("collegeImage");
String cl = i.getStringExtra("collegeLocation");
Picasso.get().load(ci).error(R.drawable.error).into(dCollegeImage);
dCollegeName.setText(cn);
dCollegeRating.setText(cr);
dCollegeLocation.setText(cl);
btnApply.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "The institute will be notified, of your application", Toast.LENGTH_LONG).show();
Toast.makeText(getApplicationContext(), "The college will contact you, Thank you", Toast.LENGTH_LONG).show();
}
});
}
#Override
public void onBackPressed() {
Intent i = new Intent(CollegeDetailsActivity.this, CollegeListActivity.class);
startActivity(i);
}
}
This is the Error Screenshot:
I'm pretty new to android I've just worked on just 4 to 5 projects,
Any Assistance will be appreciated, Thank You
The commented Out code, is just a normal listview I implemented just In Case, I have to remove the recycler view.

This will probably go away if you don't override onBackPressed in CollegeDetailsActivity. Instead of going back to an activity that had a valid "Title" string extra, the code you posted will go to a new activity where "Title" isn't defined, then get a NullPointerException since courseName will be null in initData (which the error message tells you results in an error on line 81 in that method). Using a null string in a switch results in that type of error
Just remove your onBackPressed entirely in CollegeDetailsActivity.

How to get data from a Dialog RecyclerView to its Hosted Activity?

Hi there I am having a trouble to get back text from the recycler View inside the dialog.
Somebody please help to get the data from dialog view to the same activity.
My data flow is:
MainActivity --> UserDetailsActivity --> dialog (RecyclerView)--->UserDetailsActivity ---> Updatebutton
what happening now is :
MainActivity --> UserDetailsActivity --> dialog (RecyclerView)--->App Crashes!!
what i want is to return the Tax include Money to the rent TextView
Below is my code to UserDetailsActivity.
UserDetailsActivity.Java
package com.ancorp.aplo.activity;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.Manifest;
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.provider.Telephony;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.telephony.SmsManager;
import android.widget.Toast;
import com.ancorp.aplo.R;
import com.ancorp.aplo.adapter.ChannelAdapter;
import com.ancorp.aplo.database.SqliteDatabase;
import com.ancorp.aplo.model.Contacts;
import java.text.DateFormatSymbols;
import java.text.SimpleDateFormat;
import java.time.Month;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
public class UserDetailsActivity extends AppCompatActivity {
private final static int SEND_SMS_PERMISSION_REQ=1;
public TextView textView ;
EditText name_edit;
EditText jacode_edit;
EditText phone_edit;
EditText balance_edit , paidDate_edit, paidAmount_edit, rent_edit, zone_edit;
SqliteDatabase myDB;
String header,data1,data2,timeStamp;
String month;
private Context context;
float amount;
Integer d1,d2;
Integer y;
TextView phone_text,btnRecharge, Activation, Deactivation , rent_text , zone_text,plan_text,name_text,jacode_text, Status_text, id_text;
TextView balance_text, LastPaidAmount,LastPaidDate;
int deactive = Color.RED;
int activeg = Color.GREEN;
Button btnEdit;
String id,balance, Lpdate, LpAmount,zone,rent;
String phoneNo,message;
String Status;
Button btndelete ;
ImageView editimgbtn,addimgbtn;
Spinner pkgname;
String SpinnerData;
String planAmount,chName,chId,chMoney;
private static int ACTIVE_CODE = 0;
private static int DEACTIVE_CODE = 0;
private SqliteDatabase mDatabase;
private ArrayList<Contacts> userData;
private static final int MY_PERMISSIONS_REQUEST_SEND_SMS =0 ;
Button recharges;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_details);
mDatabase = new SqliteDatabase(this);
// getUserData(id);
ActionBar actionBar = getSupportActionBar();
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
actionBar.setTitle("Customer Details");
name_edit = findViewById(R.id.user_name);
jacode_edit = findViewById(R.id.name_jacode);
phone_edit = findViewById(R.id.name_phone);
balance_edit = findViewById(R.id.name_balance);
paidAmount_edit = findViewById(R.id.LastPaidAmount_edit);
paidDate_edit = findViewById(R.id.lastPaidDate_edit);
rent_edit = findViewById(R.id.name_rent);
zone_edit =findViewById(R.id.name_zone);
pkgname= findViewById(R.id.name_package);
id_text = findViewById(R.id.id);
name_text= findViewById(R.id.user_name_text);
Status_text = findViewById(R.id.cid);
phone_text= findViewById(R.id.name_phone_text);
jacode_text= findViewById(R.id.name_jacode_text);
balance_text =findViewById(R.id.name_balance_text);
LastPaidAmount = findViewById(R.id.LastPaidAmount_text);
LastPaidDate = findViewById(R.id.lastPaidDate_text);
rent_text = findViewById(R.id.name_rent_text);
zone_text = findViewById(R.id.name_zone_text);
plan_text = findViewById(R.id.name_package_text);
Activation = findViewById(R.id.Activate);
Deactivation = findViewById(R.id.DeActivate);
//rent_edit = findViewById(R.id.name_rent);
//zone_edit = findViewById(R.id.name_zone);
addimgbtn = findViewById(R.id.addimgbtn);
btnEdit=findViewById(R.id.btnEdit);
btndelete = findViewById(R.id.btnDelete);
btnRecharge = findViewById(R.id.btnRecharge);
editimgbtn = findViewById(R.id.editbtnimg);
addimgbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AddChannel(UserDetailsActivity.this);
}
});
btnEdit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
editTask();
}
});
btnRecharge.setOnClickListener(new View.OnClickListener() {
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
#Override
public void onClick(View v) {
rechargeUser();
}
});
editimgbtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
loadSpinnerData();
name_edit.setVisibility(View.VISIBLE);
phone_edit.setVisibility(View.VISIBLE);
jacode_edit.setVisibility(View.VISIBLE);
balance_edit.setVisibility(View.VISIBLE);
paidAmount_edit.setVisibility(View.VISIBLE);
paidDate_edit.setVisibility(View.VISIBLE);
btndelete.setVisibility(View.VISIBLE);
btnEdit.setVisibility(View.VISIBLE);
rent_edit.setVisibility(View.VISIBLE);
zone_edit.setVisibility(View.VISIBLE);
pkgname.setVisibility(View.VISIBLE);
name_text.setVisibility(View.GONE);
phone_text.setVisibility(View.GONE);
jacode_text.setVisibility(View.GONE);
balance_text.setVisibility(View.GONE);
LastPaidAmount.setVisibility(View.GONE);
LastPaidDate.setVisibility(View.GONE);
btnRecharge.setVisibility(View.GONE);
rent_text.setVisibility(View.GONE);
zone_text.setVisibility(View.GONE);
plan_text.setVisibility(View.GONE);
// rechargebtn.setVisibility(View.GONE);
}
});
Intent intent =getIntent();
if (intent.getExtras() != null){
Contacts contacts = (Contacts) intent.getSerializableExtra("data");
id = getIntent().getStringExtra("id");
balance = getIntent().getStringExtra("balance");
Lpdate = getIntent().getStringExtra("LPDATE");
LpAmount = getIntent().getStringExtra("lpAmount");
zone = getIntent().getStringExtra("zone");
rent = getIntent().getStringExtra("rent");
Status_text.setText(contacts.getStatus());
Status = contacts.getStatus();
chId=getIntent().getStringExtra("channelID");
chName = getIntent().getStringExtra("channelName");
chMoney = getIntent().getStringExtra("channelMoney");
Toast.makeText(getApplicationContext(), chId , Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), chName , Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), chMoney , Toast.LENGTH_SHORT).show();
id_text.setText(id);
name_edit.setText(contacts.getName());
phone_edit.setText(contacts.getPhno());
jacode_edit.setText(contacts.getJacode());
balance_edit.setText(contacts.getBalance());
rent_edit.setText(rent);
zone_edit.setText(zone);
// plan_edit.setText(contacts.getCplan());
// balance_edit.setText(balance);
// paidDate_edit.setText(contacts.getPaidDate());
paidDate_edit.setText(Lpdate);
// paidAmount_edit.setText(contacts.getPaidAmount());
paidAmount_edit.setText(LpAmount);
// LastPaidDate.setText(contacts.getPaidDate());
LastPaidDate.setText(Lpdate);
//LastPaidAmount.setText(contacts.getPaidAmount());
LastPaidAmount.setText(LpAmount);
name_text.setText(contacts.getName());
phone_text.setText(contacts.getPhno());
jacode_text.setText(contacts.getJacode());
balance_text.setText(contacts.getBalance());
rent_text.setText(rent);
zone_text.setText(zone);
plan_text.setText(contacts.getCplan());
//balance_text.setText(balance);
header = name_edit.getText().toString();
}
pkgname.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
SqliteDatabase mydb = new SqliteDatabase(UserDetailsActivity.this);
SpinnerData = (String) adapterView.getItemAtPosition(i).toString();
planAmount = mydb.getPlanAmount(SpinnerData);
// Toast.makeText(getApplicationContext(),planAmount,Toast.LENGTH_SHORT).show();
rent_edit.setText(planAmount);
rent_text.setText(planAmount);
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
String active ="Active";
String deac = "Deactive";
if (Status.equals(active) == true){
Activation.setVisibility(View.GONE);
Deactivation.setVisibility(View.VISIBLE);
ACTIVE_CODE =1;
}
else {
ACTIVE_CODE =2;
Activation.setVisibility(View.VISIBLE);
Deactivation.setVisibility(View.GONE);
}
Activation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy - hh:mm:ss");
String timeStamps = simpleDateFormat.format(new Date()) ;
String statu ="Active";
String stats = "Activated On ";
String name = name_text.getText().toString();
mDatabase.statusUpdate(id ,statu);
mDatabase.statusDetails(id , name,stats,timeStamps);
Status_text.setText(statu);
Activation.setVisibility(View.GONE);
Deactivation.setVisibility(View.VISIBLE);
}
});
Deactivation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String statu ="Deactive";
String stats = "DeActivated On ";
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy - hh:mm:ss");
String timeStamps = simpleDateFormat.format(new Date()) ;
String name = name_text.getText().toString();
mDatabase.statusUpdate(id ,statu);
mDatabase.statusDetails(id , name,stats,timeStamps);
Status_text.setText(statu);
Activation.setVisibility(View.VISIBLE);
Deactivation.setVisibility(View.GONE);
}
});
}
private void AddChannel(UserDetailsActivity activity) {
dialog = new Dialog(activity);
// dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setCancelable(false);
dialog.setContentView(R.layout.channel_selection);
myDB = new SqliteDatabase(this);
// myDB.getChannel();
channel_id = new ArrayList<>();
channel_name = new ArrayList<>();
channel_ntMoney = new ArrayList<>();
channel_tMoney = new ArrayList<>();
Cursor cursor = myDB.getChannel();
if (cursor.getCount()==0){
Toast.makeText(this, "No Plans Have Added yet ", Toast.LENGTH_SHORT).show();
}else {
while (cursor.moveToNext()){
channel_id.add(cursor.getString(0));
channel_name.add(cursor.getString(1));
channel_ntMoney.add(cursor.getString(2));
channel_tMoney.add(cursor.getString(3));
}
}
RecyclerView recyclerView = dialog.findViewById(R.id.channelRecyclerView);
ChannelAdapter cAdapter = new ChannelAdapter(UserDetailsActivity.this,this,channel_id,channel_name,channel_ntMoney,channel_tMoney);
recyclerView.setAdapter(cAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
dialog.show();
}
private void editTask() {
final String name = name_edit.getText().toString();
final String id = id_text.getText().toString();
final String rent = rent_edit.getText().toString();
final String zone = zone_edit.getText().toString();
final String ph_no = phone_edit.getText().toString();
final String jacode = jacode_edit.getText().toString();
final String balance = balance_edit.getText().toString();
final String plan = SpinnerData;
if (TextUtils.isEmpty(name)) {
Toast.makeText(getApplicationContext(),"Something Went Wrong",Toast.LENGTH_SHORT).show();
} else {
// Contacts newContact = new Contacts(Objects.requireNonNull(contacts).getId(),name, ph_no,jacode,balance);
//mDatabase.updateContacts(newContact);
mDatabase.updateContacts(id,name, ph_no,jacode,balance,rent,zone,plan);
name_edit.setText(name);name_text.setText(name);
phone_edit.setText(ph_no);phone_text.setText(ph_no);
rent_text.setText(rent);rent_edit.setText(rent);
jacode_edit.setText(jacode);jacode_text.setText(jacode);
balance_edit.setText(balance);balance_text.setText(balance);
zone_text.setText(zone);zone_edit.setText(zone);
plan_text.setText(plan);//pkgname.set(plan);
name_edit.setVisibility(View.GONE);
phone_edit.setVisibility(View.GONE);
jacode_edit.setVisibility(View.GONE);
rent_edit.setVisibility(View.GONE);
balance_edit.setVisibility(View.GONE);
paidAmount_edit.setVisibility(View.GONE);
paidDate_edit.setVisibility(View.GONE);
btndelete.setVisibility(View.GONE);
btnEdit.setVisibility(View.GONE);
zone_edit.setVisibility(View.GONE);
pkgname.setVisibility(View.GONE);
name_text.setVisibility(View.VISIBLE);
rent_text.setVisibility(View.VISIBLE);
zone_text.setVisibility(View.VISIBLE);
phone_text.setVisibility(View.VISIBLE);
jacode_text.setVisibility(View.VISIBLE);
balance_text.setVisibility(View.VISIBLE);
LastPaidAmount.setVisibility(View.VISIBLE);
LastPaidDate.setVisibility(View.VISIBLE);
btnRecharge.setVisibility(View.VISIBLE);
plan_text.setVisibility(View.VISIBLE);
}
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void rechargeUser() {
final AlertDialog builder = new AlertDialog.Builder(this).create();
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.recharge,null);
builder.setTitle("Recharge " + header);
final EditText rechargeField = (EditText) dialogView.findViewById(R.id.rechargeEditText);
final Button cancel = (Button) dialogView.findViewById(R.id.btnCancelRecharge);
recharges = (Button) dialogView.findViewById(R.id.btnRechargeSucess);
recharges.setEnabled(false);
if(checkPermission(Manifest.permission.SEND_SMS))
{
recharges.setEnabled(true);
}
else
{
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.SEND_SMS}, SEND_SMS_PERMISSION_REQ);
}
cancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "Cancelled Recharge !!",Toast.LENGTH_LONG).show();
builder.dismiss();
}
});
recharges.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
d1 = Integer.valueOf(rechargeField.getText().toString().trim());
d2 = Integer.valueOf(balance_edit.getText().toString().trim());
amount= d2 - d1;
data1 = String.valueOf(amount);
data2 = String.valueOf(d1);
String name = String.valueOf(name_text.getText().toString().trim());
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy - hh:mm:ss");
SimpleDateFormat date = new SimpleDateFormat("dd/MM/yyyy");
timeStamp = simpleDateFormat.format(new Date()) ;
String cdate = date.format(new Date());
Calendar calendar = Calendar.getInstance();
String month = calendar.getDisplayName(Calendar.MONTH,Calendar.LONG, Locale.UK);
int year = Calendar.getInstance().get(Calendar.YEAR);
String due= balance_text.getText().toString().trim();
String paid = String.valueOf(d1);
//Toast.makeText(getApplicationContext(),month,Toast.LENGTH_SHORT).show();
// Toast.makeText(getApplicationContext(),String.valueOf(year),Toast.LENGTH_SHORT).show();
mDatabase.rechargeUser(id, (int) amount,d1,timeStamp);
mDatabase.InsertPaymentDetails(id,month,year,timeStamp,paid,due);
mDatabase.collectionDetails(id,name,d1,cdate,month,year);
reloadData();
sendSms();
builder.dismiss();
}
});
builder.setView(dialogView);
builder.show();
}
private void sendSms() {
String names = name_text.getText().toString();
String s1=phone_text.getText().toString();
String s2=("Hi "+names+", You have Successfully recharged ₹ " +d1 +" to your SKY VISION Cable account on "+timeStamp+". Your current balance is ₹ "+amount+" . Kindly clear your balance on time without any due. \n - Thank you! \n SKY VISION KONGAD");
if(!TextUtils.isEmpty(s1)&&!TextUtils.isEmpty(s2))
{
if(checkPermission(Manifest.permission.SEND_SMS))
{
SmsManager smsManager= SmsManager.getDefault();
ArrayList<String> part = smsManager.divideMessage(s2);
smsManager.sendMultipartTextMessage(s1,null,part,null,null);
}
else {
Toast.makeText(UserDetailsActivity.this, "Permission Denied", Toast.LENGTH_SHORT).show();
}
}
else
{
Toast.makeText(UserDetailsActivity.this, "Permission denied", Toast.LENGTH_SHORT).show();
}
}
private void reloadData() {
balance_text.setText(data1);
balance_edit.setText(data1);
LastPaidAmount.setText(data2);
LastPaidDate.setText(timeStamp);
paidAmount_edit.setText(data2);
paidDate_edit.setText(timeStamp);
}
public boolean onCreateOptionsMenu(Menu menu){
getMenuInflater().inflate(R.menu.user_details, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.payment_details:
Intent intent = new Intent(this,PaymentDetailsActivity.class);
intent.putExtra("ID",id);
startActivity(intent);
break;
case R.id.WriteOff:
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Write Off?");
builder.setMessage("Are you sure you want to Write off ?");
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
WriteOff();
}
});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
builder.create().show();
break;
case R.id.boxDetails:
Intent boxDetails = new Intent(this,BoxDetailsActivity.class);
boxDetails.putExtra("ID",id);
startActivity(boxDetails);
break;
}
return super.onOptionsItemSelected(item);
}
private void WriteOff() {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy - hh:mm:ss");
timeStamp = simpleDateFormat.format(new Date()) ;
Calendar calendar = Calendar.getInstance();
String month = calendar.getDisplayName(Calendar.MONTH,Calendar.LONG, Locale.UK);
int year = Calendar.getInstance().get(Calendar.YEAR);
String due= balance_text.getText().toString().trim();
String paid = "Write Off";
balance_text.setText("0");
balance_edit.setText("0");
String Writeofbalance ="0";
mDatabase.writeOff(id, month , year , timeStamp , paid , due, Writeofbalance);
}
private boolean checkPermission(String sendSms) {
int checkpermission= ContextCompat.checkSelfPermission(this,sendSms);
return checkpermission== PackageManager.PERMISSION_GRANTED;
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
switch (requestCode)
{
case SEND_SMS_PERMISSION_REQ:
if(grantResults.length>0 &&(grantResults[0]== PackageManager.PERMISSION_GRANTED))
{
btnRecharge.setEnabled(true);
}
break;
}
}
private void loadSpinnerData() {
SqliteDatabase db = new SqliteDatabase(getApplicationContext());
List<String> labels = db.getAllPlansSpinner();
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,labels);
arrayAdapter.setDropDownViewResource(R.layout.support_simple_spinner_dropdown_item);
pkgname.setAdapter(arrayAdapter);
}
ArrayList<String> channel_id,channel_name,channel_ntMoney,channel_tMoney;
ChannelAdapter cAdapter;
public static Dialog dialog;
}
here is my ChannelAdapterActivity
ChannelAdapterActivity.Java
package com.ancorp.aplo.adapter;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.ancorp.aplo.R;
import com.ancorp.aplo.activity.UserDetailsActivity;
import com.ancorp.aplo.model.Contacts;
import java.util.ArrayList;
public class ChannelAdapter extends RecyclerView.Adapter<ChannelAdapter.MyViewHolder> {
private Context context;
private Activity activity;
private ArrayList<Contacts> allChannels;
String id,name,money;
private ArrayList channel_id,channel_name,channel_ntMoney,channel_tMoney;
public ChannelAdapter(Activity activity, Context context, ArrayList<String> channel_id, ArrayList<String> channel_name, ArrayList<String> channel_ntMoney, ArrayList<String> channel_tMoney) {
this.context = context;
this.activity = activity;
this.channel_id = channel_id;
this.channel_name=channel_name;
this.channel_ntMoney= channel_ntMoney;
this.channel_tMoney= channel_tMoney;
}
public ChannelAdapter(Context context, ArrayList<Contacts> allChannel) {
}
#NonNull
#Override
public MyViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater .inflate(R.layout.channel_list,viewGroup,false);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull MyViewHolder holder, int i) {
holder.channelName.setText(String.valueOf(channel_name.get(i)));
holder.channelNt.setText(String.valueOf(channel_ntMoney.get(i)));
holder.channelT.setText(String.valueOf(channel_tMoney.get(i)));
id = String.valueOf(channel_id.get(i));
name=String.valueOf(channel_name.get(i));
money = String.valueOf(channel_tMoney.get(i));
}
#Override
public int getItemCount() {
return channel_id.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView channelName,channelNt,channelT;
LinearLayout channelLayout;
public MyViewHolder(#NonNull View itemView) {
super(itemView);
channelName = itemView.findViewById(R.id.channelName);
channelNt = itemView.findViewById(R.id.ntMoney);
channelT = itemView.findViewById(R.id.tMoney);
channelLayout = itemView.findViewById(R.id.channelMainLayout);
}
}
}
Somebody please help me I am Newbie to this.

This is another method of sending data from Adapter to Activity.
Follow these steps carefully:
Create an interface with a method
public interface InterfaceTax {
public void getTaxMoney(int amount);
}
the parameters of the method should contain the data you want to send back to the activity.
Create a variable for that interface in the Adapter and add the interface to the constructor of the Adapter.
private InterfaceTax interfaceT;
public ChannelAdapter(/* other parameters */, InterfaceTax interface) {
interfaceT = interface;
}
Then in onBindViewHolder (or wherever your data is) call the method of the interface and send the data
#Override
public void onBindViewHolder(#NonNull MyViewHolder holder, int i) {
money = String.valueOf(channel_tMoney.get(i));
interface.getTaxMoney(money);
}
Then in your activity implement the interface and override the method to receive data
public class UserDetailsActivity extends AppCompatActivity implements InterfaceTax {}
#Override
public void getTaxMonney(int data) {
// receive data here
}
In your AddChannel method, replace this line
ChannelAdapter cAdapter = new ChannelAdapter(UserDetailsActivity.this,this,channel_id,channel_name,channel_ntMoney,channel_tMoney);
with this
ChannelAdapter cAdapter = new ChannelAdapter(UserDetailsActivity.this,this,channel_id,channel_name,channel_ntMoney,channel_tMoney, this);
This will automatically send the data from the adapter to the activity and you can receive it in the method overridden in the activity.

Trying to write something in one activity and reading it in the next activity

Im currently creating a barber application and at the moment, on my landing page i have a button that when clicked it will bring up a popup window for the user to enter their name and contact number
Now what i want to do is when the user clicks view appointments it shows what appointments there are on the page name ContactUs.java
So here is my Landing.java page
package ie.app.barbershop;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcel;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import java.util.List;
public class Landing extends AppCompatActivity{
public Button buttonProducts;
public Button button4;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_landing);
readRecords();
countRecords();
buttonProducts = findViewById(R.id.buttonProducts);
button4 = findViewById(R.id.button4);
Button buttonCreateAppointment = findViewById(R.id.buttonCreateAppointment);
buttonCreateAppointment.setOnClickListener(new OnClickListenerCreateAppointment());
buttonProducts.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(Landing.this, Products.class));
}
});
button4.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(Landing.this, ContactUs.class));
}
});
}
public void readRecords() {
LinearLayout linearLayoutRecords = findViewById(R.id.linearLayoutRecords);
linearLayoutRecords.removeAllViews();
List<ObjectAppointment> appointments = new TableControllerAppointments(this).read();
if (appointments.size() > 0) {
for (ObjectAppointment obj : appointments) {
String fullName = obj.fullName;
int contactNumber = obj.contactNumber;
String textViewContents = fullName + " - " + contactNumber;
TextView textViewAppointmentItem= new TextView(this);
textViewAppointmentItem.setPadding(0, 10, 0, 10);
textViewAppointmentItem.setText(textViewContents);
textViewAppointmentItem.setTag(Integer.toString(contactNumber));
linearLayoutRecords.addView(textViewAppointmentItem);
}
}
else {
TextView locationItem = new TextView(this);
locationItem.setPadding(8, 8, 8, 8);
locationItem.setText("No records yet.");
linearLayoutRecords.addView(locationItem);
}
}
public void countRecords(){
int recordCount = new TableControllerAppointments(this).count();
TextView textViewRecordCount = findViewById(R.id.textViewRecordCount);
textViewRecordCount.setText(recordCount + " records found.");
}
}
This is my ContactUs.Java page(This should be called ViewAppointments.java but it was originally meant to be a contact us page)
package ie.app.barbershop;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.List;
public class ContactUs extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.contact_us);
}
}
This is my onclicklistenerCreateAppointment.java page
package ie.app.barbershop;
import android.view.View;
import android.content.Context;
import android.view.LayoutInflater;
import android.widget.EditText;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.widget.Toast;
public class OnClickListenerCreateAppointment implements View.OnClickListener {
public ObjectAppointment objectAppointment;
#Override
public void onClick(View view){
final Context context = view.getRootView().getContext();
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View formElementsView = inflater.inflate(R.layout.appointment_input_form, null, false);
final EditText editTextFullName = formElementsView.findViewById(R.id.editTextFullName);
final EditText editTextContactNumber = formElementsView.findViewById(R.id.editTextContactNumber);
ObjectAppointment objectAppointment = new ObjectAppointment();
new AlertDialog.Builder(context)
.setView(formElementsView)
.setTitle("Create Appointment")
.setPositiveButton("Add",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
String fullname = editTextFullName.getText().toString();
String contactno = editTextContactNumber.getText().toString();
((Landing) context).countRecords();
((Landing) context).readRecords();
dialog.cancel();
}
}).show();
boolean createSuccessful = new TableControllerAppointments(context).create(objectAppointment);
if(createSuccessful){
Toast.makeText(context, "Appointment Information was saved.", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(context, "Unable to save appointment information", Toast.LENGTH_SHORT).show();
}
}
}
And this is my TableControllerAppointments.java
package ie.app.barbershop;
import android.content.Context;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.ArrayList;
import java.util.List;
public class TableControllerAppointments extends DatabaseHandler {
public TableControllerAppointments(Context context) {
super(context);
}
public boolean create(ObjectAppointment objectAppointments) {
ContentValues values = new ContentValues();
values.put("fullname", objectAppointments.fullName);
values.put("contactno", objectAppointments.contactNumber);
SQLiteDatabase db = this.getWritableDatabase();
boolean createSuccessful = db.insert("appointments", null, values) > 0;
db.close();
return createSuccessful;
}
public List<ObjectAppointment> read() {
List<ObjectAppointment> recordsList = new ArrayList<>();
String sql = "SELECT * FROM Appointments ORDER BY id DESC";
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(sql, null);
if (cursor.moveToFirst()) {
do {
String fullName = cursor.getString(cursor.getColumnIndex("fullname"));
int contactNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex("contactno")));
ObjectAppointment objectAppointment = new ObjectAppointment();
objectAppointment.fullName = fullName;
objectAppointment.contactNumber = contactNumber;
recordsList.add(objectAppointment);
} while (cursor.moveToNext());
}
cursor.close();
db.close();
return recordsList;
}
public int count() {
SQLiteDatabase db = this.getWritableDatabase();
String sql = "SELECT * FROM appointments";
int recordCount = db.rawQuery(sql, null).getCount();
db.close();
return recordCount;
}
}
Any other info you need im more than happy to provide if i have forgotten something.
Im sorry if its something small and stupid im missing

Why won't my program open? The code says there are no errors, but these two classes won't open together

These two classes send methods and variables back and forth to each other and my code says there's no errors, but the program won't open and I can't figure out why
Here's the first class, TopLevelActivity
package com.example.oife;
import android.media.Image;
import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ShareActionProvider;
import android.widget.TextView;
import android.content.Intent;
import android.view.View;
import java.text.SimpleDateFormat;
public class TopLevelActivity extends Activity {
TextView mText = (TextView) findViewById(R.id.calendarView);
private ShareActionProvider shareActionProvider;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_oife);
long date = System.currentTimeMillis();
TextView displayDate = (TextView) findViewById(R.id.displayDate);
SimpleDateFormat sdf = new SimpleDateFormat("MMM dd, yyyy");
String dateString = sdf.format(date);
displayDate.setText(dateString);
}
public void onPostClick (View view) {
Intent intent = new Intent(this, PostActivity.class);
startActivity(intent);
}
//call onHomeClick() method when the button is clicked
public void onHomeClick (View view){
Intent intent = new Intent(this,TopLevelActivity.class);
startActivity(intent);
}
//call onMoreClick() method when the button is clicked
public void onMoreClick(View view){
Intent intent = new Intent(this, MoreActivity.class);
startActivity(intent);
}
public TextView getMainText(){
return mText;
}
public void setMText(TextView t){
mText.setText(t.getText());
}
}
Here's the second class, PostActivity
This class is where most of the functions from the other one are accessed
package com.example.oife;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.RadioGroup;
import android.widget.Toast;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.content.Intent;
import android.view.View;
public class PostActivity extends Activity {
private TextView pDisplayDate;
private Button pPickDate;
private int pYear;
private int pMonth;
private int pDay;
private TextView mainText;
static final int DATE_DIALOG_ID = 0;
private TextView name = (TextView) findViewById(R.id.name);
private TextView day;
TopLevelActivity top = new TopLevelActivity();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_post);
/** Capture our View elements */
pDisplayDate = (TextView) findViewById(R.id.displayDate);
pPickDate = (Button) findViewById(R.id.pickDate);
/** Listener for click event of the button */
pPickDate.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
showDialog(DATE_DIALOG_ID);
}
});
/** Get the current date */
final Calendar cal = Calendar.getInstance();
pYear = cal.get(Calendar.YEAR);
pMonth = cal.get(Calendar.MONTH);
pDay = cal.get(Calendar.DAY_OF_MONTH);
/** Display the current date in the TextView */
// updateDisplay();
}
private void setMainText(){
TextView d = (TextView) findViewById(R.id.description);
mainText.setText(top.getMainText() + "/n/n" + name + "/n" + makeDay().getText() + "/n" + d.getText());
}
private TextView makeDay(){
TextView ToD;
RadioGroup t = (RadioGroup) findViewById(R.id.TOD);
int id = t.getCheckedRadioButtonId();
if(id == -1) {
ToD = null;
}
else{
ToD = (TextView) findViewById(id);
}
TextView wow;
RadioGroup g = (RadioGroup) findViewById(R.id.WoW);
id = g.getCheckedRadioButtonId();
if (id == -1){
//no item selected
}
else{
wow = (TextView) findViewById(id);
}
TextView d = (TextView) findViewById(R.id.displayDate);
String s = String.valueOf(d);
String j;
if (ToD.getText().equals("Morning")){
j = "9:00";
}
else if(ToD.getText().equals("Midday")){
j = "12:00";
}
else if (ToD.getText().equals("Evening")){
j = "5:00";
}
else {
j = "10:00";
}
TextView time = new TextView(this);
time.setText( j + " " + s);
return time;
}
private DatePickerDialog.OnDateSetListener pDateSetListener =
new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
pYear = year;
pMonth = monthOfYear;
pDay = dayOfMonth;
updateDisplay();
displayToast();
}
};
private void updateDisplay() {
pDisplayDate.setText(
new StringBuilder()
// Month is 0 based so add 1
.append(pMonth + 1).append("/")
.append(pDay).append("/")
.append(pYear).append(" "));
}
private void updateMainDisplay(){
setMainText();
top.setMText(mainText);
}
private void displayToast() {
Toast.makeText(this, new StringBuilder().append("Date choosen is ").append(pDisplayDate.getText()), Toast.LENGTH_SHORT).show();}
/** Create a new dialog for date picker */
#Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
return new DatePickerDialog(this,
pDateSetListener,
pYear, pMonth, pDay);
}
return null;
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_post, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void onCreateClick(View view){
Intent intent = new Intent(this, TopLevelActivity.class);
updateMainDisplay();
startActivity(intent);
}
}

call code like this after you call setContentView:
Activity 1:
TextView mText = (TextView) findViewById(R.id.calendarView);
Activity 2:
private TextView name = (TextView) findViewById(R.id.name);
you did that wrong in both Activitys. You call findViewById in the member section of your Activitys and at this point the Activity dont know anything about the layout file.
That must leads to a NullpointerException.

How do I use setResult when returning from an activity?

I need help, I am making a simple application, and I don´t know how to return to the MainActivity the string from the spinner and the name of the person when i click in the "Aceptar" button.
MainActivity.java
package com.example.holaamigos;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
public final static String EXTRA_SALUDO = "com.example.holaamigos.SALUDO";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText txtNombre = (EditText)findViewById(R.id.TxtNombre);
final Button btnHola = (Button)findViewById(R.id.BtnHola);
final CheckBox checkbox1 =(CheckBox)findViewById(R.id.checkBox1);
checkbox1.setOnCheckedChangeListener(new OnCheckedChangeListener(){
#Override
public void onCheckedChanged(CompoundButton arg0,
boolean checked) {
if (checked)
{
Toast.makeText(checkbox1.getContext(), "Activo", Toast.LENGTH_LONG).show();
btnHola.setVisibility(0);
btnHola.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, ActivitySaludo.class);
String saludo = txtNombre.getText().toString();
intent.putExtra(EXTRA_SALUDO, saludo);
startActivity(intent);
}
});
}
else
{
Toast.makeText(checkbox1.getContext(), "Inactivo", Toast.LENGTH_SHORT).show();
btnHola.setVisibility(View.INVISIBLE);
}
}
});
}
public void HobbyReturn(int requestcode, int resultadocode, Intent data) {
if (resultadocode == ActivitySaludo.ACEPTAR_OK); {
String string = data.getStringExtra(ActivitySaludo.ACEPTAR_OK);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
ActivitySaludo
package com.example.holaamigos;
import com.example.holaamigos.R.string;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;
public class ActivitySaludo extends Activity {
public static final String ACEPTAR_OK = "com.example.holaamigos.ACEPTAR_OK";
String myspinner;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_saludo);
Intent intent = getIntent();
String saludo = intent.getStringExtra(MainActivity.EXTRA_SALUDO);
TextView txtCambiado = (TextView) findViewById(R.id.TxtSaludo);
txtCambiado.setText(getString(R.string.hola_saludo) + " " + saludo);
final Spinner spinner = (Spinner)findViewById(R.id.SpinnerSaludo);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.hobby, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener () {
#Override
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
parent.getItemAtPosition(pos);
myspinner = spinner.getItemAtPosition(pos).toString();
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
//another call
}
});
final Button BtnAceptar=(Button) findViewById(R.id.buttonAceptar);
BtnAceptar.setOnClickListener(new OnClickListener (){
#Override
public void onClick(View v) {
Intent iboton = new Intent();
iboton.putExtra("HOBBY", myspinner);
setResult(ACEPTAR_OK, iboton);
finish();
}
});
}
}

You need to start your second activity with the flag that you are waiting for a result, so instead of startActivity you need to make use of startActivityForResult.
If you need a little bit more information take a look at this tutorial it should cover all you need to get things working.

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getting selected radiobutton text as string - java

In your xml layout ,did you checked TRUE any radio button ? You should get the selected radio button value on click of submit button.It will update your setGender string with most recent value. for your app crash , Please post your logcat error while app crash.

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