Hi I'm trying to save a user preference from a list view i'm wanting it to store what the selected and then when the app loads up again checks for the preference chosen method if it = team then do something but at the moment its not loading in preferences any ideas as to what i'm doing wrong. when i log out chosen Method it says null
heres my code
preferences.edit().putString("ChosenMethod", "Team").commit();
preferences.edit().putString("ChosenTeam", ChosenTeam).commit();
preferences.edit().putString("ChosenTeamId", ChosenTeam).commit();
preferences.edit().putString("ChosenLeagueId", ChosenTeam).commit();
preferences.edit().putString("ChosenDivisionID", ChosenTeam).commit();
then in the introActivity I've put this this
protected void checkPreferences(){
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
Log.v("myapp", "prefs = " + preferences);
String ChosenMethod = preferences.getString("ChosenTeam", chosenMethod);
Log.v("myapp", "ChosenMethod = " + ChosenMethod);
if (ChosenMethod != null){
Intent intent = new Intent(TheEvoStikLeagueActivity.this,Activity.class);
}
}
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
checkPreferences();
//Retrive value from SharedPreference
public static String getStringFromSP(String key) {
// TODO Auto-generated method stub
SharedPreferences preferences = getApplicationContext().getSharedPreferences(" SHARED_PREFERENCES_NAME ", android.content.Context.MODE_PRIVATE);
return preferences.getString(key, null);
}//getPWDFromSP()
you can use the above code get value from SharedPreference.
Refer this LINK
Related
I am developing an app,in that i am maintaining Session using Shared Preferences.I that when user login,i am using their email id for further use.But when i tried to use that email in another activity, it is showing null.
Below in my code for mainActivity:
public class main extends AppCompatActivity {
public Button submit;
public static final String MyPREFERENCES = "MyPrefs" ;
public static final String email = "emailkey";
SharedPreferences sharedpreferences;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity1);
submit = (Button) findViewById(R.id.btn_login);
ImageView i1 = (ImageView) findViewById(R.id.imgLogo);
String checkBoxText = "I agree to all the";
final CheckBox checkBox = (CheckBox) findViewById(R.id.checkBox);
sharedpreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
checkBox.setText(Html.fromHtml(checkBoxText));
checkBox.setMovementMethod(LinkMovementMethod.getInstance());
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
EditText e1 = (EditText) findViewById(R.id.input_email);
EditText p1 = (EditText) findViewById(R.id.input_password);
String e = e1.getText().toString();
final String password = p1.getText().toString();
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(email, e);
editor.commit();
Here is my code for another activity:
String e,email;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.internshipsdetails);
SharedPreferences sharedpreferences = getSharedPreferences(main.MyPREFERENCES, Context.MODE_PRIVATE);
sharedpreferences.getString(email,e);
String url = "url?COMP_REQ_ID=" + title + "&StuEmail=" + e;
AQuery mAQuery = new AQuery(InternShipsDetails.this);
mAQuery.ajax(url, String.class, new AjaxCallback<String>() {
#Override
public void callback(String url, String data, AjaxStatus status) {
super.callback(url, data, status);
if (BuildConfig.DEBUG) {
Log.d("###$Request URL", url + "");
Log.d("###$Response ", data + "");
Log.d("###$Status Message : ", status.getMessage() + "");
Log.d("###$Status Code : ", status.getCode() + "");
}
You can manage session by changing shared preference values after doing logout action and check preference again at the time of login also. You can save current time also in a string at login and logout action. Make sure to use private shared preferences.
You are passing the wrong key to shared Pref because of that you are getting null.
Following is the updated code of yours which will give you the stored email address:
SharedPreferences sharedpreferences = getSharedPreferences(main.MyPREFERENCES, Context.MODE_PRIVATE);
e = sharedpreferences.getString(main.email,"");
String url = "url?COMP_REQ_ID=" + title + "&StuEmail=" + e;
Happy coding !!!
getString (String key, String defValue) method returns a String. So, you need to catch the output in a string variable.
Also, you are passing a nullkey. You need to pass the same key using which you saved the value.
So, in your case it would be
e = sharedpreferences.getString("emailkey","nodata");
I have two strings that I want to save them I wrote the code as shown below
public class MainActivity extends Activity {
Button result;
EditText b951, b9511, sum95, t95, p95
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LoadPreferences();
result = (Button)findViewById(R.id.btn1);
b951 = (EditText)findViewById(R.id.b951);
b9511 = (EditText)findViewById(R.id.b9511);
sum95 = (EditText)findViewById(R.id.sum95);
p95 = (EditText)findViewById(R.id.p95);
t95 = (EditText)findViewById(R.id.t95);
}
public void close (View v){
SavePreferences("p2b951", b951.getText().toString());
SavePreferences("p2b9511", b9511.getText().toString());
finish();
}
private void SavePreferences(String key, String value){
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(key, value);
editor.commit();
}
private void LoadPreferences(){
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String p1b951 = sharedPreferences.getString("p2b951", "1");
String p1b9511 = sharedPreferences.getString("p2b9511", "1");
b951.setText(p1b951);
b9511.setText(p1b9511);
}
public void result (View v) {
try {
int ib951 = Integer.parseInt(b951.getText().toString());
int ib9511 = Integer.parseInt(b9511.getText().toString());
int iisum95 = (ib9511-ib951);
sum95.setText(String.valueOf(iisum95));
int isum95 = Integer.parseInt(sum95.getText().toString());
int ip95 = Integer.parseInt(p95.getText().toString());
int pp95 = (isum95*ip95);
t95.setText(String.valueOf(pp95));
}
catch (Exception e) {
e.printStackTrace();
}
}
}
But it seems there is a problem with this two lines:
b951.setText(p1b951);
b9511.setText(p1b9511);
I tried this
b951.setText(String.valueOf.p1b951);
b9511.setText(String.valueOf.p1b9511);
Also the problems still exist
When I open the application and when the loadpreferences is called the app will force close
The logcat show me that the error is with this two lines for sure it's just with the first line coz he didn't get the second but they are the same so they are wrong wroted
Any help??
Change onCreate() as follows:
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
result = (Button)findViewById(R.id.btn1);
b951 = (EditText)findViewById(R.id.b951);
b9511 = (EditText)findViewById(R.id.b9511);
sum95 = (EditText)findViewById(R.id.sum95);
p95 = (EditText)findViewById(R.id.p95);
t95 = (EditText)findViewById(R.id.t95);
LoadPreferences();
}
This is because you are using the EditTexts in the LoadPreferences() without calling findViewById() on the EditTexts.
You can follow and help from like codes. such as
Setting values in Preference:
SharedPreferences.Editor editor = getSharedPreferences(MODE_PRIVATE).edit();
editor.putString("name", "Elena");
editor.putInt("idName", 12);
editor.commit();
Retrieve data from preference:
SharedPreferences prefs = getSharedPreferences(MODE_PRIVATE);
String restoredText = prefs.getString("text", null);
if (restoredText != null) {
String name = prefs.getString("name", "No name defined");//"No name defined" is the default value.
int idName = prefs.getInt("idName", 0); //0 is the default value.
}
it any confused about this then follow this link
I've been getting null returns from getting strings from my saved preferences. I'm not sure how savedpreferences worked but my understanding was that when call a sharedpreferences, it creates the keypair file on the phone so you can come back to it later.
My program is essentially a string creation application. When you press a button, it creates a string to send as an sms. My settings activity page has four edittexts that save whatever is inside them with a buttonclick and returns to the main activity. The final button creates a String by getting the value from the keyvalue pair and constructs the message. However, I've always gotten null for each of the values.
Heres the code for the settings page and then the main page. Please ask if I could add more, I didn't add ALL of the code, just the sharedpreferences portions.
public SharedPreferences sp;
public Editor e;
public void savethethings(){ //run this when enter is pressed/savew
EditText smsintro_hint = (EditText) findViewById(R.id.settings_smsintro_hint);
EditText smsbody_hint = (EditText) findViewById(R.id.settings_smsbody_hint);
EditText checkboxbody_hint = (EditText) findViewById(R.id.settings_checkboxbody_hint);
EditText checkboxbody_description_hint = (EditText) findViewById(R.id.settings_checkboxbody_description_hint);
String introstring = smsintro_hint.getText().toString();
String bodystring = smsbody_hint.getText().toString();
String checkboxbodystring = checkboxbody_hint.getText().toString();
String checkboxdescriptionstring = checkboxbody_description_hint.getText().toString();
e.putString("intro", introstring);
e.commit(); // you forgot to commit
if(!bodystring.isEmpty())
{
e.putString("body", bodystring);
e.commit();
}
if(!checkboxbodystring.isEmpty())
{
e.putString("checkbody", checkboxbodystring);
e.commit();
}
if(!checkboxdescriptionstring.isEmpty())
{
e.putString("checkboxdescr", checkboxdescriptionstring);
e.commit();
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.settingmenu);
//SP
sp = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); // forget about
// named preferences - get the default ones and finish with it
e = sp.edit();
Button tt = (Button)findViewById(R.id.savebutton);
tt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
finish();
}
});
public void save(View view)
{
//THINGS HAPPEN HERE WITH SHARED PREFERENCES :(
savethethings();
this.finish();
return;
}
public String finishedtext(String userstring)
{
smsintroduction = (sp.getString("intro", ""));
smsbody = (sp.getString("body", ""));
checkboxtext = (sp.getString("checkbody", ""));
checkboxmessage = (sp.getString("checkboxdescr", ""));
if(smsintroduction.isEmpty())
{
if(smsbody.isEmpty())
{
if(checkboxtext.isEmpty())
{
if(checkboxmessage.isEmpty()) //topkek for most AND statements Ive ever put in in if/then form
{
//Essentially the DEFAULT if they're ALL null
smsbody = "Hi "+ userstring +"! This is coming from jake's phone and it wants to send a text so we can talk or whatever. ";
}
}
}
}
Toast.makeText( this, "Creating text, then press send!", Toast.LENGTH_LONG).show();
String thetext = "";
thetext = smsintroduction + " " + smsbody + " " + checkboxtext;
return thetext;
}
public void savethethings(){ //run this when enter is pressed/savew
EditText smsintro_hint = (EditText) findViewById(R.id.settings_smsintro_hint);
EditText smsbody_hint = (EditText) findViewById(R.id.settings_smsbody_hint);
EditText checkboxbody_hint = (EditText) findViewById(R.id.settings_checkboxbody_hint);
EditText checkboxbody_description_hint = (EditText) findViewById(R.id.settings_checkboxbody_description_hint);
String introstring = smsintro_hint.getText().toString();
String bodystring = smsbody_hint.getText().toString();
String checkboxbodystring = checkboxbody_hint.getText().toString();
String checkboxdescriptionstring = checkboxbody_description_hint.getText().toString();
// if(!introstring.isEmpty()) //if the fields are NOT empty, they should get saved.
// {
e.putString("intro", introstring);
e.commit(); // you forgot to commit
if(!bodystring.isEmpty())
{
e.putString("body", bodystring);
e.commit();
}
if(!checkboxbodystring.isEmpty())
{
e.putString("checkbody", checkboxbodystring);
e.commit();
}
if(!checkboxdescriptionstring.isEmpty())
{
e.putString("checkboxdescr", checkboxdescriptionstring);
e.commit();
}
}
Create java class named SessionManger and put all your methods for setting and getting SharedPreferences values. When you want to save value use the object of this class and set and get the values.
Sample code given below.
public class SessionManager {
SharedPreferences pref;
SharedPreferences.Editor editor;
Context _context;
int PRIVATE_MODE = 0;
public SessionManager(Context context) {
this._context = context;
pref = _context.getSharedPreferences("name_that_you_use", PRIVATE_MODE);
editor = pref.edit();
editor.apply();
}
public void setIntroMessage(String data) {
editor.putString("intro", data);
editor.commit();
}
public String getIntroMessage() {
return pref.getString("intro", null);
}
}
I have a login activity on app start and I need to check if use has used this app before and then I need to place the username and his password entered recently.
For this I have used shared preferences and used as shown below:
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
username= usernameET.getText().toString();
password= passwordET.getText().toString();
SharedPreferences data = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
data.edit().putString("username", username).commit();
data.edit().putString("password", password).commit();
}
});
Now I'm getting these values on app restart as shown below:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
SharedPreferences data = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
String storedUsername = data.getString("username", "");
String storedPassword = data.getString("password", "");
if (storedUsername != null && storedPassword != null) {
usernameET.setText(storedUsername);
passwordET.setText(storedPassword);
} else {
}
}
Coder, what is your issue? This is not working?
Please, tell us what is happening.
The implementation with SharedPreference would be my suggestion for you, is it not working?
I made a very simple implemention here and it works as usual...
On the onCreate:
SharedPreferences data = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
String storedUsername = data.getString("username", "");
String storedPassword = data.getString("password", "");
Toast.makeText(this, "saved Strings, user = " + storedUsername + " pass = " + storedPassword, Toast.LENGTH_LONG).show();
On the click of an ImageButton
#Override
public void onClick(View v) {
SharedPreferences data = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
data.edit().putString("username", "carlos").commit();
data.edit().putString("password", "password").commit();
}
Sounds like you are not setting the content on the SharedPreferences. Could you please make sure the action is executed?
Didn't really see a question asked but...
data.getString is going to return the default value if it is not set, which you're setting as a blank string(""). Either change your if:
if (!storedUsername.equals("") && !storedPassword.equals(""))
or change your default value to null
String storedUsername = data.getString("username", null);
String storedPassword = data.getString("password", null);
I have try to set and store the password for my apps, but it is not working at all. The password should be setted first time then return the home page, then when the user open it again the password should be stored but somehow it didn't store it.
PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences passfile = getSharedPreferences("ans",0);
String pass = passfile.getString("ans", null);
check.setOnClickListener(new OnClickListener () {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String answer1 = answer.getText().toString();
//Check that user typed in an answer
if(answer1.length()<8){
Toast.makeText(CheckPwActivity.this, "Answer must be 8 characters long", Toast.LENGTH_SHORT).show();
answer.setText("");
answer.requestFocus();
return;
}
answer.getEditableText().toString();
//check if the answer is valid
if (answer1.equals("ans")) {
Intent intent2 = new Intent(CheckPwActivity.this,MainActivity.class);
startActivity(intent2);
}else{
return;
}
}});
}
public void setPassword(String key, String value) {
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
Editor preferenceEditor = context.getSharedPreferences("password", 8).edit();
preferenceEditor.putString(key, value);
preferenceEditor.commit();
}
public static String getPassword(String filename) {
return context.getSharedPreferences("password", 2).getString(filename,"");
}
you are using shared preferences wrong, in your set password you get shared preferences but then you get it again but in a different context
this is all you need to use shared preferences
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
then when you want to set it you use the editor you just got
editor.putString(key,pass).commit;
then to get it from shared preferences you would just do
preferences.getString(key,defaultString);