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Shared Preferences not retrieving value

I have two activities namely Registration and Login where I defined a Shared Preferences in the Registration class. On the Registration page, if you click on the button that takes you to the Login Activity from the Registration Activity. I am storing a Shared Preferences value, so that on launching the app the second time, let the app immediately go to the LoginActivity instead of opening the first Activity which is Registration Activity. Here is my SharedPreferences class called Session.
private SharedPreferences prefs;
public Session(Context cntx) {
// TODO Auto-generated constructor stub
prefs = PreferenceManager.getDefaultSharedPreferences(cntx);
}
public void setusename(String usename) {
SharedPreferences.Editor editor = prefs.edit();
editor.putString("username", usename).commit();
editor.commit();
public Boolean contKey(String key){
if (prefs.contains(key)){
return true;
}else{
return false;
}
}
Here is the button in the RegstrationActivity that stores the SharedPreferences value before going to the LoginActivity so that on launch the second time, it opens the LoginActivity class
loginLink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
session = new Session(getApplicationContext());
session.setusename("hello123");
Intent intent = new Intent(getApplication(),ActivityLogin.class);
startActivity(intent);
finish();
}
});
I have defined this in the onCreate method of RegistrationActivity class to switch to the ActivityLogin screen on next time the app is launched
System.out.println("it got here...2");
try {
if (session.contKey("username")) {
System.out.println("it got here...");
Intent intent = new Intent(getApplication(), ActivityLogin.class);
startActivity(intent);
overridePendingTransition(R.anim.enter, R.anim.exit);
finish();
} else {
System.out.println("it got here...3");
Intent intent = new Intent(getApplication(), ActivityRegistration.class);
startActivity(intent);
finish();
overridePendingTransition(R.anim.enter, R.anim.exit);
}
}catch(Exception ex){
}
Please why is my Shared Preferences not switching to the LoginActivity the second time the is launched. Kindly assist

TRy this
private SharedPreferences prefs;
public Session(Context cntx) {
// TODO Auto-generated constructor stub
prefs = PreferenceManager.getDefaultSharedPreferences(cntx);
}
public void setusename(String usename) {
SharedPreferences.Editor editor = prefs.edit();
editor.putString("username", usename);
editor.commit();
}
}
public String getusename() {
return prefs.getString("username","");
}
}
than use this way to get value SharedPreferences
session = new Session(getApplicationContext());
session.setusename("hello123");
String username=session.getusename();
Sample code
try {
if (!session.getusename().equals("")) {
System.out.println("it got here...");
Intent intent = new Intent(getApplication(), ActivityLogin.class);
startActivity(intent);
overridePendingTransition(R.anim.enter, R.anim.exit);
finish();
} else {
System.out.println("it got here...3");
Intent intent = new Intent(getApplication(), ActivityRegistration.class);
startActivity(intent);
finish();
overridePendingTransition(R.anim.enter, R.anim.exit);
}
}catch(Exception ex){
}

Instead of default shared preference, you can define a private one with your desired name in the Activity A..like as follows..
SharedPreferences preferences = getSharedPreferences("myPreferences",0);
SharedPreferences.Editor editor= preferences.edit();
editor.putString("userName","raju");
editor.commit();
If you want to retrieve that value from shared preferences in Activty A(I mean in the same activity), you can use following code..
String user_name= preferences.getString("userName","N/A");
or else in Activity B(I mean in some other activty), this time you don't need editor(for retrieval)..the code will be as follows
SharedPreferences preferences = getSharedPreferences("myPreferences",0);
String user_name= preferences.getString("userName","N/A");

How to use shared preferences to save data that get from database? [duplicate]

This question already has answers here:
Shared preferences for creating one time activity
(14 answers)
How to use SharedPreferences in Android to store, fetch and edit values [closed]
(30 answers)
Closed 6 years ago.
I have this button code and it was connect to database
bLogin.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final String username = etUsername.getText().toString();
final String password = etPassword.getText().toString();
// Response received from the server
Response.Listener<String> responseListener = new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success) {
String name = jsonResponse.getString("name");
String email = jsonResponse.getString("email");
String alamat = jsonResponse.getString("alamat");
int notelp = jsonResponse.getInt("notelp");
String username = jsonResponse.getString("username");
String password = jsonResponse.getString("password");
Intent intent = new Intent(MainActivity.this, adminarea.class);
intent.putExtra("name", name);
intent.putExtra("email", email);
intent.putExtra("alamat", alamat);
intent.putExtra("notelp", notelp);
intent.putExtra("username", username);
intent.putExtra("password", password);
MainActivity.this.startActivity(intent);
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("Login Gagal")
.setNegativeButton("Ulangi", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
i have a table called admin thats contain field name, email and etc.. how can i take the data from databse then save my data like name, email, alamat and the other to shared prefences. then can you help me to call it to another activity?

First of all you have to create SharedPreferences
SharedPreferences pref = getApplicationContext().getSharedPreferences("YOUR_PREF_NAME", MODE_PRIVATE);
Editor edt = pref.edit();
To add value in preference:
edt.putString("name", name);
edt.putString("email", email);
edt.putString("alamat", alamat);
edt.putString("notelp", notelp);
edt.putString("username",username);
// Save your changes
edt.commit();
Now for getting data from preference:
String name=pref.getString("name", null);
String email=pref.getString("email", null);
String alamat=pref.getString("alamat", null);
String notelp=pref.getString("notelp", null);
String username=pref.getString("username", null);
If you want to clear the preference data:
edt.clear();
edt.commit();

Save like below.
SharedPreferences getPref = PreferenceManager.getDefaultSharedPreferences(this);
Intent intent = new Intent(MainActivity.this, adminarea.class);
intent.putExtra("name", name);
getPref.edit().putString("name",name).apply();
intent.putExtra("email", email);
getPref.edit().putString("email",name).apply();
intent.putExtra("alamat", alamat);
getPref.edit().putString("alamat",name).apply();
intent.putExtra("notelp", notelp);
intent.putExtra("username", username);
intent.putExtra("password", password);
MainActivity.this.startActivity(intent);
Retrieve like this.
SharedPreferences getPref = PreferenceManager.getDefaultSharedPreferences(this);
String name = getPref.getString("name","");
String email = getPref.getString("email","");
String alamat = getPref.getString("alamat","");

Create a class SharePrefUtil
private Context context;
private SharedPreferences prefs;
public SharePrefUtil(Context mContext) {
this.context = mContext;
prefs = this.context.getSharedPreferences("your package name", Context.MODE_PRIVATE);
}
public void setValueInSharePref(String keyName, String value) {
prefs.edit().putString(keyName, value).apply();
}
public String getValueFromSharePref(String keyName) {
return prefs.getString(keyName, "");
}
}
When ever you want to store the value
Just Make a object of class in you activity to get or set a value
for example
SharePreUtil shef = new SharePreUtil(this);
When ever you what to set a value in the activity
shef.setValueInSharePref("key", "yourvalue");
when you want to get value
shef.getValueFromSharePref("key");
All the best...

onCreate() method
sharedpreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
to get all data server after
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(name, name);
editor.putString(email, email);
.....
editor.commit();

quoting the training guide at https://developer.android.com/training/basics/data-storage/shared-preferences.html
SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putInt(getString(R.string.saved_high_score), newHighScore);
editor.commit();
and to read
SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
int defaultValue = getResources().getInteger(R.string.saved_high_score_default);
long highScore = sharedPref.getInt(getString(R.string.saved_high_score), defaultValue);

In your other activity....first receive data from intent...like this
String name = getIntent().getExtras().getInt("name");
now,save this data into shared prefrences....to do that...you need sharedPreferences.Editor to write data.....like this...
SharedPreferences sp = Your_Activity.this.getSharedPreferences("SharedPreferences_Name", Context.MODE_PRIVATE);
SharedPreferences.Editor spwriter = sp.edit();
spwriter.putString("name",name);
spwriter.commit();

if (success) {
// once you retrieve all the required data
SharedPreferences prefs = this.getSharedPreferences("com.example.app", Context.MODE_PRIVATE);
// Writing data to SharedPreferences
Editor editor = prefs.edit();
editor.putString("name", name);
editor.putString("email", email);
editor.putInt("notelp", notelp);
editor.commit();
// start your AdminArea activity here
}
Retrieve data inn AdminArea class:
// Reading from SharedPreferences
String value = prefs.getString("name", "DEFAULT_STRIGN"); // if the given key not found, it'll take the default string as value
int intValue = prefs.getInt("notelp", -1); // instead of -1, you can give any default value
hope this helps :)

You can save data in SharedPreferences in your activity class as below:
SharedPreferences sharedPreferences = getSharedPreferences("USER_INFO", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString("name", name);
editor.putString("email", alamat);
editor.putString("alamat", alamat);
editor.commit();
And in your activity where you want to fetch them, do as below:
SharedPreferences sharedPreferences = getSharedPreferences("USER_INFO", Context.MODE_PRIVATE);
String name=sharedPreferences.getString("name", "abc");
String email=sharedPreferences.getString("email", "abc#gmail.com");
To put int,
editor.putInt("number",0);
And to retrive it,
sharedPreferences.getInt("number",0);

Pass multiple Intents to multiple activities

I want to pass info as shown in this picture screen description
I know that my code is working, becuase with one Intent it works perfectley. However, when I try to put two or more Intents it seems to get messed up. I also checked here to find a sutibale solution, but I don't think I can use it the same way. Thanks in advance
--update--
still dosen't work
i did this on my saving side
Intent saveIntent = new Intent(this, MainActivity.class);
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
editor.putString("time", displayTime.getText().toString());
editor.commit();
startActivity(saveIntent);
and this on my reciving side
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
String time = preferences.getString("time",null);
if (time != null)
getTime.setText(time);
Main Activity:
private Button createNewEvent;
private Button showMyEvents;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
createNewEvent = (Button) findViewById(R.id.bCreateNewEvent);
showMyEvents = (Button) findViewById(R.id.bShowMyEvents);
}
public void buttonOnClick(View v) {
switch (v.getId()) {
case R.id.bCreateNewEvent:
Intent createNewEventIntent = new Intent(this, CreateNewEventActivity.class);
startActivity(createNewEventIntent);
break;
case R.id.bShowMyEvents:
Intent myEventsIntent = new Intent(this,MyEventsActivity.class);
startActivity(myEventsIntent);
break;
}
}
}
screen 1 save button:
case R.id.bSaveNewEvent:
Intent putIntent = new Intent(getApplicationContext(),MyEventsActivity.class);
// String text = displayTime.getText().toString();
putIntent.putExtra("time",displayTime.getText().toString());
Intent saveIntent = new Intent(this, MainActivity.class);
startActivity(saveIntent);
startActivity(putIntent);
screen 2 getExtras
public class MyEventsActivity extends AppCompatActivity {
TextView getTime;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_events);
getTime = (TextView) findViewById(R.id.tvGetTime);
Intent in = getIntent();
String name = in.getStringExtra("time");
getTime.setText(name);
/* Bundle extras = getIntent().getExtras();
if (extras != null){
getTime.setText(extras.getString("time"));
}*/

If you are trying to save data that will be need to be used in multiple other activities, SharedPreferences will be the easiest solution.
https://developer.android.com/training/basics/data-storage/shared-preferences.html
When you want to save a value, you would use:
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
editor.putString("time", displayTime.getText().toString());
editor.commit();
Then when you want to get the preference later on you would use:
SharedPreferences preferences = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE);
String time = preferences.getString("time", "");

Android Speech to text API Getting variable value out of onActivityResult method

Hi How can I use Android Speech to text API to get a value out of onActivityResult and use it in other activities/methods?
Heres the example code
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if(requestCode == check && resultCode == RESULT_OK){
String results1 = data.getStringExtra(RecognizerIntent.EXTRA_RESULTS);
EditText test = (EditText) findViewById(R.id.editText1);
test.setText(results1);
ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
ListView lv = (ListView) findViewById(R.id.listView);
lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results));
whatYouSaid = results.get(0); }
So yeah.... How can i get this string value of whatYouSaid from this method to be able to use it in ohter methods/classes?

Store it as a global static variable in your app.
Save this in Shared preferences.
If its just few more activities you can pass it through Intent;
SharedPreference:
starting from this line
.......
whatYouSaid = results.get(0);
Sharedpreferences sp = getSharedPreferences("UR_UNIQ_PREF_ID", Context.MODE_PRIVATE);
Editor editor = sp.edit();
editor.putString("WHATYOUSAID", whatyousaid);
editor.commit();
//Then start your another activity
//Then in your next activity
oncreate(){
......
Sharedpreferences sp = getSharedPreferences("UR_UNIQ_PREF_ID", Context.MODE_PRIVATE);
String whatyousaid = sp.getString("UR_UNIQ_PREF_ID","");
}
}

SharedPreferences not being cleared android

I have an app where a user logs in and his details are saved so that the next time he starts the app he doesn't need to log in again.I have used SharedPreferences for this purpose. Now when I implement a logout function, I clear the preferences and I get a Map with 0 elements. Also I delete the Preference file. But when another user logs in he can still see the previous users details instead of his. How can I solve this?
Here is my code:-
SessionManagement.java
public class SessionManagement extends Application
{
static SharedPreferences pref;
// Editor for Shared preferences
SharedPreferences.Editor editor;
// ContextS
Context _context;
// Shared pref mode
int PRIVATE_MODE = 0;
// Sharedpref file name
private static final String PREF_NAME = "MyUserDetails";
// All Shared Preferences Keys
private static final String IS_LOGIN = "IsLoggedIn";
// User name (make variable public to access from outside)
public static final String KEY_EMAILID = "email";
// Email address (make variable public to access from outside)
public static final String KEY_USERSNAME = "usersname";
public static final String KEY_DEVICEREGISTERED = "deviceregistered";
// Constructor
public SessionManagement(Context context)
{
this._context = context;
pref = _context.getSharedPreferences(PREF_NAME, PRIVATE_MODE);
editor = pref.edit();
}
public void createLoginSession(String emailId, String usersname)
{
// Storing login value as TRUE
editor.putBoolean(IS_LOGIN, true);
editor.putBoolean(KEY_DEVICEREGISTERED, true);
editor.putString(KEY_EMAILID, emailId);
editor.putString(KEY_USERSNAME, usersname);
editor.commit();
// commit changes
}
/**
* Get stored session data
* */
public HashMap<String, String> getUserDetails()
{
HashMap<String, String> user = new HashMap<String, String>();
user.put(KEY_EMAILID, pref.getString(KEY_EMAILID, null));
user.put(KEY_USERSNAME, pref.getString(KEY_USERSNAME, null));
// return user
return user;
}
/**
* Check login method wil check user login status
* If false it will redirect user to login page
* Else won't do anything
* */
public void checkLogin()
{
// Check login status
if(!this.isLoggedIn())
{
// user is not logged in redirect him to Login Activity
Intent i =new Intent(this, Login.class);
// Closing all the Activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
// Add new Flag to start new Activity
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Staring Login Activity
_context.startActivity(i);
}
}
// This function clears all session data and redirect the user to LoginActivity
/**
* Clear session details
* */
public void logoutUser()
{
// Clearing all data from Shared Preferences
editor.remove(KEY_EMAILID);
editor.remove(KEY_USERSNAME);
editor.remove(IS_LOGIN);
editor.clear();
editor.commit();
}
public boolean isLoggedIn()
{
return pref.getBoolean(IS_LOGIN, false);
}
}
Login.java
sessionManager = new SessionManagement(getApplicationContext());
if(sessionManager.isLoggedIn())
{
//Go directly to main activity
HashMap<String, String> userDetails = sessionManager.getUserDetails();
startMyActivity();
finish();
}
else
{
sessionManager.createLoginSession(email, username);
}
public void startMyActivity()
{
// TODO Auto-generated method stub
Intent in = new Intent(getApplicationContext(), Details1.class);
in.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(in);
finish();
}
Logout.java
SessionManagement session = new SessionManagement(getApplicationContext());
session.logoutUser();
ClearData cl = new ClearData();
cl.clearApplicationData(getApplicationContext());
Intent i = new Intent(Home.this, Login.class);
// Closing all the Activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
// Add new Flag to start new Activity
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Staring Login Activity
startActivity(i);
ClearData.java
public class ClearData
{
public static void clearApplicationData(Context context)
{
File cache = context.getCacheDir();
File appDir = new File(cache.getParent());
if (appDir.exists()) {
String[] children = appDir.list();
for (String s : children) {
File f = new File(appDir, s);
if(deleteDir(f))
Log.i("TAG", String.format("**************** DELETED -> (%s) *******************",
f.getAbsolutePath()));
}
}
}
private static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
return dir.delete();
}
}

Instead of removing value from sharedpreference you can just edit value of sharedpreference with null value.
public void logoutUser()
{
editor.putBoolean(IS_LOGIN, false);
editor.putBoolean(KEY_DEVICEREGISTERED, false);
editor.putString(KEY_EMAILID, null);
editor.putString(KEY_USERSNAME, null);
editor.commit();
}
i think this will work..

You can change the values of Shared preferences.
public void logoutUser()
{
editor.putBoolean(IS_LOGIN, false);
editor.putBoolean(KEY_DEVICEREGISTERED, false);
editor.putString(KEY_EMAILID, "");
editor.putString(KEY_USERSNAME, "");
editor.clear();
editor.commit();
}
or You try this code. Clear your Shared preferences values.
pref.edit().clear().commit();

if your are using Marshmallow then
Add file in xml folder
mybackupscheme.xml
<full-backup-content>
<exclude domain="sharedpref" path="yourshared pref name.xml"/>
</full-backup-content>
then add in AndroidManifest.xml
<application
...
android:fullBackupOnly="false"
android:fullBackupContent="#xml/mybackupscheme"
/>
Hope this using this your issue will be resolved.

Try to get editor every time before calling commit().
If this not works, check contexts, that are returning preferences, they must be in one application and process.
I think problem is in your way of working with editor.

I think there is problem in your view of your editor and preference globalization you have to create preference and editor locally....
Because you are getting preferences
public SessionManagement(Context context)
{
this._context = context;
pref = _context.getSharedPreferences(PREF_NAME, PRIVATE_MODE);
editor = pref.edit();
}
And now you are not getting any updated Preferences....
Each and every time when you have to work with your preferences...
Initialize preference and editor every time.
Either logging In or log out.