Develop Reference

Intent to Navigation Drawer Activity not working

I have been trying to add a Navigation Drawer Activity to my code, I followed an old tutorial that upon creation didn't create fragments, but I tried to make ti work none the less, I think I did everything right but when opening then emulator, the app doesn't take me to the activity but to the launcher one(?), is it the emulator or is it the code?
Navigation Drawer:
public class NavigationDrawerActivity extends AppCompatActivity {
private AppBarConfiguration mAppBarConfiguration;
FirebaseDatabase database;
DatabaseReference category;
TextView txtFullName;
RecyclerView recyclerView;
RecyclerView.LayoutManager layoutManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navigation_drawer);
Toolbar toolbar = findViewById(R.id.toolbar);
toolbar.setTitle("Options");
setSupportActionBar(toolbar);
//Init. Firebase
database = FirebaseDatabase.getInstance();
category = database.getReference("Category");
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
//Set name for User
View HeaderView = navigationView.getHeaderView(0);
txtFullName = findViewById(R.id.txtFullName);
if (Common.currentUser != null) {
txtFullName.setText(Common.currentUser.getName());
finish();
} else if (Common.CurrentFirebaseUser != null) {
txtFullName.setText(Common.CurrentFirebaseUser.getDisplayName());
finish();
}
//Load Options
recyclerView = findViewById(R.id.recycler);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
loadFilter();
}
private void loadFilter() {
FirebaseRecyclerAdapter<Category,FilterViewHolder> adapter = new FirebaseRecyclerAdapter<Category, FilterViewHolder>(Category.class, R.layout.filter_item, FilterViewHolder.class, category) {
#Override
protected void populateViewHolder(FilterViewHolder filterViewHolder, Category category, int i) {
FilterViewHolder.txtFilterName.setText(category.getName());
Picasso.with(getBaseContext()).load(category.getImage())
.into(filterViewHolder.imageView);
Category clickItem = category;
filterViewHolder.setItemClickListener(new ItemClickListener() {
#Override
public void onClick(View view, int position, boolean isLongClick) {
Toast.makeText(NavigationDrawerActivity.this, ""+ clickItem.getName(), Toast.LENGTH_SHORT).show();
}
});
}
};
recyclerView.setAdapter(adapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.navigation_drawer, menu);
return true;
}
#Override
public boolean onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
}
SignIn leading to the Navigation Drawer (ignore the login logic):
public class SignIn extends AppCompatActivity {
private static final int RC_SIGN_IN = 1;
Button btnSignIn;
ImageView btnGoogle;
EditText edtTxtPhone, edtTxtPassword;
private static final String TAG = "SignIn";
private FirebaseAuth mAuth;
private boolean noError = false;
private GoogleSignInClient mGoogleSignInClient;
#Override
protected void onStart() {
super.onStart();
FirebaseUser user = mAuth.getCurrentUser();
if (user != null) {
Intent intent = new Intent(SignIn.this, NavigationDrawerActivity.class);
startActivity(intent);
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sign_in);
btnSignIn = findViewById(R.id.btnSignIn);
btnGoogle = findViewById(R.id.btnGoogle);
edtTxtPhone = findViewById(R.id.edtTxtPhone);
edtTxtPassword = findViewById(R.id.edtTxtPassword);
//Initialize Firebase
FirebaseDatabase database = FirebaseDatabase.getInstance("https://app-delivery-tutorial-default-rtdb.europe-west1.firebasedatabase.app");
DatabaseReference table_user = database.getReference("User");
btnSignIn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
checkCredentials();
ProgressDialog mDialog = new ProgressDialog(SignIn.this);
mDialog.setMessage("Signin In...");
mDialog.show();
if (noError) {
table_user.addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot snapshot) {
mDialog.dismiss();
//Check If User Does Exist First
if (snapshot.child(edtTxtPhone.getText().toString()).exists()) {
//Get User Information
User user = snapshot.child(edtTxtPhone.getText().toString()).getValue(User.class);
if (user.getPassword().equals(edtTxtPassword.getText().toString())) {
Intent successfulLogIn = new Intent(SignIn.this, NavigationDrawerActivity.class);
Common.currentUser = user;
startActivity(successfulLogIn);
} else {
Toast.makeText(SignIn.this, "Sign In Failed", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(SignIn.this, "User Not Found, Please Register First", Toast.LENGTH_SHORT).show();
Log.w(TAG, "Failed to read value.");
}
}
#Override
public void onCancelled(#NonNull DatabaseError error) {
Toast.makeText(SignIn.this, "Cancelled", Toast.LENGTH_SHORT).show();
}
});
} else {
mDialog.dismiss();
Toast.makeText(SignIn.this, "Wrong Phone Number Or Password Input", Toast.LENGTH_SHORT).show();
}
}
});
//Initialize Google Firebase
mAuth = FirebaseAuth.getInstance();
createRequestGoogle();
btnGoogle.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
SignInGoogle();
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RC_SIGN_IN) {
Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
try {
GoogleSignInAccount account = task.getResult(ApiException.class);
firebaseAuthWithGoogle(account);
Toast.makeText(this, "Activity Has Been Succesful", Toast.LENGTH_SHORT).show();
} catch (ApiException e) {
Log.w(TAG, "Google Sign In Failed", e);
}
}
}
private void firebaseAuthWithGoogle(GoogleSignInAccount account) {
AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(#NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
FirebaseUser user = mAuth.getCurrentUser();
Intent intent = new Intent(SignIn.this, NavigationDrawerActivity.class);
Common.CurrentFirebaseUser = user;
startActivity(intent);
}
}
});
}
private void SignInGoogle() {
Intent signInIntent = mGoogleSignInClient.getSignInIntent();
startActivityForResult(signInIntent, RC_SIGN_IN);
}
private void createRequestGoogle() {
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestIdToken(getString(R.string.default_web_client_id))
.requestEmail()
.build();
mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
}
private void checkCredentials() {
String username = edtTxtPhone.getText().toString();
String password = edtTxtPassword.getText().toString();
if (username.isEmpty() || username.length() < 9) {
showError(edtTxtPhone, "Your Phone Number must have at least 9 character");
} else if (password.isEmpty() || password.length() < 4) {
showError(edtTxtPassword, "Your password must have at least 4 character");
} else {
noError = true;
}
}
private void showError(EditText editText, String s) {
editText.setError(s);
editText.requestFocus();
}
}
I tried to see if the fragments created were the problem, if the NavigationDrawerActivity should use an other xml file or if I was missing some logic, but I still don't understand why it would take me to the Launcher Activity instead of the NavigationDrawer one, the SignIn logic does work with other activities other than the NavigationDrawer one

Unable to solve error - javax.mail.authenticationfailedexception: [EOF]

I have created an application where it scans bar codes and QR codes on the phone and send an email of the collected data to my personal email which is a gmail. However, recently it stopped sending emails and prompted me an error as shown below:
javax.mail.authenticationfailedexception: [EOF]
NOTE: I am relatively new at this
I have been told to change it from SMTP to SSL but I cant seem to fix the issue.
package com.example.createexcelsample;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
import java.nio.charset.Charset;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.util.ByteArrayDataSource;
import static android.content.ContentValues.TAG;
public class SendMail extends AsyncTask<Void, Void, Void> {
private Context context;
private Session session;
private String email;
private String subject;
private String message;
private String fileName;
private MyWebServiceResult listener;
public String SendError = "";
private ProgressDialog progressDialog;
private String email_uid = "EMAIL";//Email written here
private String email_pwd = "123456";
/*URL url = new URL("https://office365.com");
URLConnection urlConnection = url.openConnection();
InputStream in = urlConnection.getInputStream();
//copyInputStreamToOutputStream(in, System.out);*/
public interface MyWebServiceResult {
public void onSendIsComplete();
public void onSendError(String Error);
}
public void setWebServiceResult(MyWebServiceResult listener) {
this.listener = listener;
}
public SendMail(Context context, String email, String subject, String message,String fileName,String email_uid, String email_pwd){
//this.email_uid = email_uid;
//this.email_pwd = email_pwd;
this.context = context;
this.email = email;
this.subject = subject;
this.message = message;
this.fileName = fileName;
this.listener = null;
}
#Override
protected void onPreExecute() {
}
#Override
protected Void doInBackground(Void... params) {
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
//props.put("mail.smtp.host", "smtp.gmail.com");
/* props.put("mail.smtp.host", "212.12.184.20");
props.put("mail.smtp.port", "110");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");*/
//props.put("mail.smtp.ssl.trust", "212.12.184.20");
session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(email_uid, email_pwd);
}
});
try {
MimeMessage mm = new MimeMessage(session);
mm.setFrom(new InternetAddress(email_uid));
mm.addRecipient(Message.RecipientType.TO, new InternetAddress(email));
mm.setSubject(subject);
mm.setText("body");
MimeBodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(fileName);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(fileName);
Multipart multipart = new MimeMultipart();
// Set text message part
multipart.addBodyPart(messageBodyPart);
mm.setContent(multipart);
SendError = "";
Transport.send(mm);
}
catch (MessagingException e) {
SendError = e.toString().toString();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// progressDialog.dismiss();
if (SendError.toString().isEmpty()){
listener.onSendIsComplete();
} else {
listener.onSendError(SendError);
}
}
/* public void hideSoftKeyboard(AutoProgramingValid activity) {
InputMethodManager inputMethodManager =
(InputMethodManager) activity.getSystemService(
AutoProgramingValid.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(
activity.getCurrentFocus().getWindowToken(), 0);
}*/
}

Problem with user registration through Firebase - not saving data in Realtime Database‏

I'm developing a social networking app that uses subscribing and building a user profile through FareBas.
Unfortunately, the program works and when the user presses the register button, an error appears and the information does not go into real-time.
!I would be very grateful for the help.
Registration page:
package com.example.myapplicationfire;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.util.Patterns;
import android.view.View;
import android.webkit.MimeTypeMap;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
public class reg extends AppCompatActivity implements View.OnClickListener
{
EditText name, pass, email, bio;
FirebaseAuth firebaseAuth;
FirebaseDatabase firebaseDatabase = FirebaseDatabase.getInstance();
Button b,b1;
ProgressDialog p;
DatabaseReference myref = firebaseDatabase.getReference("Users");
ImageView pic;
Uri uri;
StorageReference storageReference;
String picName;
SharedPreferences sp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reg);
name = findViewById(R.id.et1);
pass = findViewById(R.id.et2);
email = findViewById(R.id.et3);
bio = findViewById(R.id.et5);
b = findViewById(R.id.b1);
b.setOnClickListener(this);
b1 = findViewById(R.id.b2);
b1.setOnClickListener(this);
pic =findViewById(R.id.pic1);
pic.setImageResource(R.drawable.person);
pic.setOnClickListener(this);
sp=getSharedPreferences("details",0);
firebaseAuth = FirebaseAuth.getInstance();
}
public void createUser() {
p = new ProgressDialog(this);
p.setMessage("Registration...");
p.show();
if (isValidate())
firebaseAuth.createUserWithEmailAndPassword(email.getText().toString
(), pass.getText().toString()).addOnCompleteListener(this,
new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(#NonNull
Task<AuthResult> task) {
if (task.isSuccessful()) {
storageReference =
FirebaseStorage.getInstance().getReference("Image/Users/"+email.getText().toString().replace('.',' '));
storageReference = storageReference.child(picName);
storageReference.putFile(uri).addOnSuccessListener(new OnSuccessListener <UploadTask.TaskSnapshot>() {
#Override
public void
onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
Toast.makeText(reg.this, "תמונה הועלתה", Toast.LENGTH_LONG).show();
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(reg.this, "" +
e.getMessage(), Toast.LENGTH_LONG).show(); }
});
myref=firebaseDatabase.getReference("users").push();
User u = new
User(name.getText().toString(), pass.getText().toString(),
email.getText().toString(), myref.getKey(),picName,bio.getText().toString());
myref.setValue(u);
p.dismiss();
Toast.makeText(reg.this, "ההרשמה הצליחה!", Toast.LENGTH_LONG).show();
}
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(reg.this,
"" + e.getMessage(), Toast.LENGTH_LONG).show();
p.dismiss();
}
});
}
public boolean isValidate() {
if (!
Patterns.EMAIL_ADDRESS.matcher(email.getText().toString()).matches()) {
email.setError("Invalid email");
email.setFocusable(true);
return false;
} else if (pass.getText().toString().length() < 6) {
pass.setError("password length at least 6 characters");
pass.setFocusable(true);
return false;
}
else if (bio.getText().toString().length() < 10) {
bio.setError("bio length should be 10-100 characters");
bio.setFocusable(true);
return false;
}
return true;
}
#Override
public void onClick(View view) {
if (view == pic) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), 0);
}
if (view == b) {
createUser();
if(isValidate()){
sp=getSharedPreferences("details",0);
SharedPreferences.Editor editor=sp.edit();
editor.putBoolean("isChecked",true);
editor.putString("name",name.getText().toString());
editor.putString("bio",bio.getText().toString());
editor.putString("email",email.getText().toString());
editor.commit();
Intent intent = new Intent(reg.this, homepage.class);
intent.putExtra("email", email.getText().toString());
startActivity(intent);
}
}
if(view==b1){
Intent intent = new Intent(reg.this, login.class);
startActivity(intent);
finish();
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (data != null && requestCode == 0 && data.getData() != null) {
uri = data.getData();
if (uri != null) {
pic.setImageURI(uri);
picName = System.currentTimeMillis() + "." + getFileExtension(uri);
}
}
}
private String getFileExtension(Uri uri) {
ContentResolver cR = getContentResolver();
MimeTypeMap mime = MimeTypeMap.getSingleton();
return mime.getExtensionFromMimeType(cR.getType(uri));
}
public void ShowHidePass(View view) {
if (view.getId() == R.id.show_pass_btn) {
if (pass.getTransformationMethod().equals(PasswordTransformationMethod.getInstance())) {
((ImageView) (view)).setImageResource(R.drawable.showeye1);
//Show Password
pass.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
} else {
((ImageView) (view)).setImageResource(R.drawable.showeye);
//Hide Password
pass.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
}
}}
Error:
E/StorageUtil: error getting token java.util.concurrent.ExecutionException: com.google.firebase.internal.api.FirebaseNoSignedInUserException: Please sign in before trying to get a token.

How to start New Layout (activity) from ListView

When I click the ListView, I'd like to start a new Activity
Here is my MainActivity.java
package com.theheran.listviewicon;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends Activity {
//Declarasi Array Menu dan gambar
ListView list;
String[] menu = {
"#The_Heran",
"www.theheran.com",
"Add",
"Delete",
"Next",
"Back",
"Find",
"Warning"
} ;
Integer[] imageId = {
R.drawable.ic_launcher,
R.drawable.signal,
R.drawable.add,
R.drawable.trash,
R.drawable.next,
R.drawable.back,
R.drawable.find,
R.drawable.warning
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CustomListView adapter = new
CustomListView(MainActivity.this, menu, imageId);
list=(ListView)findViewById(R.id.list);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
Toast.makeText(MainActivity.this, "You Clicked at " +menu[+ position], Toast.LENGTH_SHORT).show();
// HERE THE PROBLEM (Intent)
Intent intent = new CustomListView(MainActivity.this,);
startActivity(intent);
}
});
}
}
My CustomListView
package com.theheran.listviewicon;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class CustomListView extends ArrayAdapter<String> {
//Declarasi
private final Activity context;
private final String[] web;
private final Integer[] imageId;
public CustomListView(Activity context,String[] web, Integer[] imageId) {
super(context, R.layout.list_single_data, web);
this.context = context;
this.web = web;
this.imageId = imageId;
}
#Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
//Load Custom Layout untuk list
View rowView= inflater.inflate(R.layout.list_single_data, null, true);
//Declarasi komponen
TextView txtTitle = (TextView) rowView.findViewById(R.id.txtList);
ImageView imageView = (ImageView) rowView.findViewById(R.id.imgIcon);
//Set Parameter Value
txtTitle.setText(web[position]);
imageView.setImageResource(imageId[position]);
return rowView;
}
}

// HERE THE PROBLEM (Intent)
Intent intent = new CustomListView(MainActivity.this,);
startActivity(intent);
Here you are trying to use a wrong structure.
Use this:
Intent intent = new Intent(MainActivity.this, NextActivity.class);
MainActivity.this.startActivity(intent );

Try this way ,
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(MainActivity.this, "You Clicked at " +position , Toast.LENGTH_SHORT).show();
Intent MoveToNext = new Intent(getApplicationContext(), Your_Next_Activity.class);
startActivity(MoveToNext);
}
});

This is how I have done it. You start a new activity using the startActivityForResult(intent, 2); Where you throw a intent and a number (number that you check for when you go back to the starting page).
private void registerButtonClickList() {
ListView list = (ListView) findViewById(R.id.listView);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(InThisClass.this, GoingToThisClass.class);
intent.putExtra("Position", position);
startActivityForResult(intent, 0);
}
});
}
Use this where in the same class as you started the other one form the list. This is needed since you are expecting a return when you start with startActivityForResult()
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 0) {
if (resultCode == Activity.RESULT_OK) {
//See what u should do using the requestCode
//and check if it ended OK
}
if (resultCode == Activity.RESULT_CANCELED) {
//what you do when canceled
}
}
}
And in the activity that you started you need to end with this because you are expected to return something. This you do by using setResult().
Button btn = (Button) findViewById(R.id.btn);
btnCANCEL.setOnClickListener(new View.OnClickListener() {
#TargetApi(Build.VERSION_CODES.CUPCAKE)
#Override
public void onClick(View v) {
Intent intent = new Intent();
setResult(Activity.RESULT_OK, intent);
//intent.putExtra("something", something); if you need to send something back
finish();
}
});
Hope this helps!

convert activity into fragment that can call activity

i have problem to convert activity to fragment, but function of "getBaseContext" and "this" can't work
package prj.apdev.c17;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
public class DataBase extends Fragment {
TempatDatabase dm;
EditText inama, idosis, ilabel;
Button btambah;
TableLayout tabel4data;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View va = inflater.inflate(R.layout.mapping_fragment, container, false);
return va;
dm = new TempatDatabase(this);
tabel4data = (TableLayout) va.findViewById (R.id.tabel_data);
inama = (EditText) va.findViewById(R.id.dose_nama_e);
idosis = (EditText) va.findViewById(R.id.dose_dosis_e);
ilabel = (EditText) va.findViewById(R.id.dose_label_e);
btambah = (Button) va.findViewById(R.id.button_add);
btambah.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
simpanData();
}
});
updateTable();
}
private void updateTable() {
// TODO Auto-generated method stub
// TODO Auto-generated method stub
while (tabel4data.getChildCount() > 1) {
tabel4data.removeViewAt(1);
}
double aa = tabel4data.getChildCount();
String a = String.valueOf(aa);
Toast.makeText(getBaseContext(), "tabel data child : " + a,
Toast.LENGTH_SHORT).show();
ArrayList<ArrayList<Object>> data = dm.ambilSemuaBaris();//
for (int posisi = 0; posisi < data.size(); posisi++) {
TableRow tabelBaris = new TableRow(this);
ArrayList<Object> baris = data.get(posisi);
TextView idTxt = new TextView(this);
idTxt.setText(baris.get(0).toString());
tabelBaris.addView(idTxt);
TextView namaTxt = new TextView(this);
namaTxt.setText(baris.get(1).toString());
tabelBaris.addView(namaTxt);
TextView dosisTxt = new TextView(this);
dosisTxt.setText(baris.get(2).toString());
tabelBaris.addView(dosisTxt);
TextView labelTxt = new TextView(this);
labelTxt.setText(baris.get(3).toString());
tabelBaris.addView(labelTxt);
tabel4data.addView(tabelBaris);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private void simpanData() {
// TODO Auto-generated method stub
try {
dm.addRow(inama.getText().toString(), idosis.getText().toString(), ilabel.getText().toString());
Toast.makeText(getBaseContext(), inama.getText().toString() + ", berhasil disimpan",
Toast.LENGTH_SHORT).show();
updateTable();
kosongkanField();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getBaseContext(), "gagal simpan, " + e.toString(),
Toast.LENGTH_LONG).show();
}
}
private void kosongkanField() {
// TODO Auto-generated method stub
inama.setText("");
idosis.setText("");
ilabel.setText("");
}
}
and this my database class
package prj.apdev.c17;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import java.util.ArrayList;
public class TempatDatabase {
private static final String ROW_ID = "_id";
private static final String ROW_NAMA = "nama";
private static final String ROW_DOSIS = "dosis";
private static final String ROW_LABEL = "label";
private static final String NAMA_DB ="APdev";
private static final String NAMA_TABEL="Doseme";
private static final int DB_VERSION=1;
private static final String CREATE_TABLE =
"create table "+NAMA_TABEL+" ("+ROW_ID+" integer PRIMARY KEY autoincrement, "+ROW_NAMA+" text,"+ROW_DOSIS+" text, "+ROW_LABEL+" text)";
//membuat mendeklarasikan itu adalah context
private final Context context;
//membuat mendeklarasikan DatabaseOpenHelper itu adalah dbhelper
private DatabaseOpenHelper dbhelper;
//membuat mendeklarasikan SQLiteDatabase itu adalah db
private SQLiteDatabase db;
//mengambil context untuk mengakses system di android
public TempatDatabase(DataBase ctx) {
//mendeklarasikan ctx adalah context ( context context di ganti ctx )
this.context = ctx;
// membuat DatabaseOpenHelper
dbhelper = new DatabaseOpenHelper(context);
//menuliskan DatabaseOpenHelper = SQLiteDatabase
db = dbhelper.getWritableDatabase();
}
private static class DatabaseOpenHelper extends SQLiteOpenHelper {
//membuat database
public DatabaseOpenHelper(Context context) {
super(context, NAMA_DB, null, DB_VERSION);
// TODO Auto-generated constructor stub
}
#Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL(CREATE_TABLE);
}
//memperbarui database bila sudah ada
#Override
public void onUpgrade(SQLiteDatabase db, int oldVer, int newVer) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS "+NAMA_DB);
onCreate(db);
}
}
//menutup DatabaseOpenHelper
public void close() {
dbhelper.close();
}
//menambahkan pada row
public void addRow(String nama, String dosis, String label) {
ContentValues values = new ContentValues();
values.put(ROW_NAMA, nama);
values.put(ROW_DOSIS, dosis);
values.put(ROW_LABEL, label);
try {
//menambahkan nama tabel bila tidak akan error
// db.delete(NAMA_TABEL, null, null);
db.insert(NAMA_TABEL, null, values);
} catch (Exception e) {
Log.e("DB ERROR", e.toString());
e.printStackTrace();
}
}
//membuat array pada table layout
public ArrayList<ArrayList<Object>> ambilSemuaBaris() {
ArrayList<ArrayList<Object>> dataArray = new ArrayList<ArrayList<Object>>();
Cursor cur;
try {
cur = db.query(NAMA_TABEL,
new String[] { ROW_ID, ROW_NAMA, ROW_DOSIS, ROW_LABEL }, null, null,
null, null, null);
cur.moveToFirst();
if (!cur.isAfterLast()) {
do {
ArrayList<Object> dataList = new ArrayList<Object>();
dataList.add(cur.getLong(0));
dataList.add(cur.getString(1));
dataList.add(cur.getString(2));
dataList.add(cur.getString(3));
dataArray.add(dataList);
} while (cur.moveToNext());
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.e("DEBE ERROR", e.toString());
}
return dataArray;
}
}
or if you have any method for complete this condition, you can include it.
Thanks

You can use getActivity().getBaseContext, which returns the activity associated with a fragment.

your context type is DataBase in your TempatDatabase constructor. Change it with Context i.e
public TempatDatabase(Context ctx) {
//mendeklarasikan ctx adalah context ( context context di ganti ctx )
this.context = ctx;
// membuat DatabaseOpenHelper
dbhelper = new DatabaseOpenHelper(context);
//menuliskan DatabaseOpenHelper = SQLiteDatabase
db = dbhelper.getWritableDatabase();
}
and for the fragment getActivity() method wil return the context

Problem Resolved
I've realize that function "return" must be on the end of part
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View va = inflater.inflate(R.layout.dose_fragment, container, false);
dm = new TempatDatabase(getActivity());
tabel4data = (TableLayout) va.findViewById(R.id.tabel_data);
inama = (EditText) va.findViewById(R.id.dose_nama_e);
idosis = (EditText) va.findViewById(R.id.dose_dosis_e);
ilabel = (EditText) va.findViewById(R.id.dose_label_e);
btambah = (Button) va.findViewById(R.id.button_add);
btambah.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
simpanData();
}
});
updateTable();
return va;
}
Thanks for helping guys.