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cannot get right result from getdefaultsharedpreferences

When I use defaultsharedpreferences to save multiple data, I found data is covered. I feel confused about what happened. The expected values from preferences
userId is 2
authorizedHeader is bhlrYXZpbjpseWthdmlu
and retrieved values
userId is 2
authorizedHeader is 2
private static final String PREF_AUTHORIZED_QUERY = null;
private static final String PREF_USERID_QUERY = null;
public static String getStoredUserIdQuery(Context context){
return PreferenceManager.getDefaultSharedPreferences(context)
.getString(PREF_USERID_QUERY, null);
}
public static String getStoredAuthorizedQuery(Context context){
return PreferenceManager.getDefaultSharedPreferences(context)
.getString(PREF_AUTHORIZED_QUERY, null);
}
public static void setStoredQuery(Context context, String userId, String authorizedHeader){
PreferenceManager.getDefaultSharedPreferences(context)
.edit()
.putString(PREF_AUTHORIZED_QUERY, authorizedHeader)
.putString(PREF_USERID_QUERY, userId)
.apply();
}

you are using values as null for both keys mean there is only one key i.e. null which will override the each other (PREF_USERID_QUERY will over write previous values which were saved with null as key)
so give them values
private static final String PREF_AUTHORIZED_QUERY = "authorized";
private static final String PREF_USERID_QUERY = "userid";
You can imagine it like
PreferenceManager.getDefaultSharedPreferences(context)
.edit()
.putString("null", authorizedHeader)
.putString("null", userId) // so there is actually only one key
.apply();

Android colors in sharedpreferences

In my application is settings_activity where people can change some colors (icons, text etc). I want to put colors in sharedpreferences, created class:
public class AppData {
static SharedPreferences prefdata;
static SharedPreferences.Editor editordata;
static final String FCOLOR_KEY = "#FFFFFF"; //first color
static final String SCOLOR_KEY = "#FFFFFF"; //second color
static final String TCOLOR_KEY = "#FFFFFF"; //text color
static final String ICOLOR_KEY = "#FFFFFF"; //icon color
static final Image BIMG_KEY = null; //bakcground image
}
What is best value type for colors (int, string or just colors)?
How can I change values from appdata by use settings_activity and how can I use it (colors) in xml files? Should I use colors.xml(how?)?

If you are going to use the color enumeration, I would just use an int to store it. (See below for data type of ints)
http://developer.android.com/reference/android/graphics/Color.html
However, if you are going to use the hexadecimal value, then I would store it as a string. When you load your app, check the shared preferences and load the string and if the option does not exist load a default color.
object.setColor(sharedPreferences.getString("COLOR", "#FFFFFF"));.

if the user give you hex string ( as you answer to NoChinDeluxe)
you should store it in string in your sharePref and then parse it with :
public static int parseColor (String colorString)
I always do my Prefs like this:
private static final String KEY_COLOR_1 = "color 1";
private static Prefs instance;
public static Prefs with(Context ctx) {
if (instance == null) {
instance = new Prefs();
}
instance.ctx = ctx.getApplicationContext();
return instance;
}
private Context ctx;
private Prefs() {
}
public SharedPreferences getPrefs() {
return PreferenceManager.getDefaultSharedPreferences(ctx);
}
public String getColor1() {
return getPrefs().getStrings(KEY_COLOR_1, "");
}
public void setColor1(String color) {
getPrefs().edit().putStrings(KEY_COLOR_1, color).apply();
}
and then you can get your color with:
Pref.with(this).getColor1();

I'm using shared prefrences to store a Location value received from gps, How can i retrive the same from the getAppData()?

public class StorageHelper {
public static final String PREFS_NAME = "LOCATION_DATA";
public static void saveAppData(Context ctx, String key, Location value){
SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
String lat =Double.toString(value.getLatitude());
String lon=Double.toString(value.getLongitude());
Set location = new HashSet();
location.add(lat);
location.add(lon);
editor.putStringSet(key,location);
editor.apply();
}
public static String getAppData(Context ctx, String key){
SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, 0);
return settings.getStringSet(key,);
}
}
what is the second argument to pass in the return settings.getStringSet()?
I am expected to send a java.lang parameter , but a Set is of java.utiity type.

As said in documentation, second parameter is value that returns if there is no object associated with used key value. You can use empty set or null, but after call this method you should check for not null value.

How do I display all saved shared preferences in a listview using phone number as the key?

I am building an app that asks for contact information, such as name,email, phone number, city, state and zipcode.
I am learning about SharedPreferences, and trying to experience it to the fullest extent. I do not want to use a SQLite database yet, I know that it would be better for my application but I am trying to use sharedpreferences right now.
Basically I have the contact information coming from a few edittext fields, which are then assigned to a grouped string, that includes all of the above attributes separated by a comma as a delimiter. Lets say I call this ContactInstance
I am trying to use the string I pull from the edittext for the phone number as the key for each sharedpreference instance saved. so for instance if someones phone number was 521-345-3456 then this value would be assigned to ClientPhoneNumber, and then when I added a shared preference key-value pair it would look like this:
editor.putString("clientNum", ClientPhoneNumber);
editor.putString(ClientPhoneNumber, ContactInstance);
Is this correct?
Then to retrieve ALL of the values, I would probably need to use a list view but I dont know how to display them. Currently I can get it to display ONE item, but all values are "null" separated by the delimiter.
To retrieve, would this work?
SharedPreferences sharedPreference = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
String ClientPhoneNumber = sharedPref.getString("clientNum", "");
String ContactInstance = sharedPref.getString(ClientPhoneNumber, "");
Is that the correct way to do it? it's not working as of now so not sure where I am going wrong.

I Think that
String ContactInstance = sharedPref.getString(ContactInstance, "");
Should be
String ContactInstance = sharedPref.getString(ClientPhoneNUmber , "");
EDIT:
This code Works for me: (Should work inside an Activity class)
private SharedPreferences getMySharedPreferences() {
return getSharedPreferences(MainActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
private void storeData(String data) {
final SharedPreferences prefs = getMySharedPreferences();
SharedPreferences.Editor editor = prefs.edit();
editor.putString("data", data);
editor.commit();
}
private String retrieveData() {
final SharedPreferences prefs = getMySharedPreferences();
return prefs.getString("data", "");
}
NOTE: MainActivity should be your MainActivity class name.
EDIT2:
If you want store a LIST, SharedPreferences is no the better way. But there are a way.
private void storeRecord(String Id, String Name, String Phone, String Address) {
final SharedPreferences prefs = getMySharedPreferences();
SharedPreferences.Editor editor = prefs.edit();
String data = TextUtils.join(",", new String[]{Id, Name, Phone, Address});
editor.putString("record_" + Id, data);
editor.commit();
}
private String[] getRecord(String Id, bool usePrefix) {
final SharedPreferences prefs = getMySharedPreferences();
String data = (String) prefs.getAll().get((usePrefix ? "record_" + Id : Id));
return TextUtils.split(data, ",");
}
private ArrayList<String[]> getAllRecords() {
final SharedPreferences prefs = getMySharedPreferences();
Map<String,?> all = prefs.getAll();
Iterator it = all.entrySet().iterator();
ArrayList<String[]> result = new ArrayList<String[]>();
while(it.hasNext()) {
Map.Entry pairs = (Map.Entry)it.next();
if (pairs.getKey().toString().startsWith("record_")) {
result.add(getRecord(pairs.getKey().toString(), false));
}
}
return result;
}

How can I retrieve Value of SharedPreference file in another Activity?

Activity 1st..
Here this is my first activity to add data
preferences=PreferenceManager.getDefaultSharedPreferences(context);
preferences = getPreferences(MODE_PRIVATE);
editor = preferences.edit();
editor.putString("userid",et_username.getText().toString());//adduserid
editor.putString("password",et_password.getText().toString());//add password
editor.commit();
Activity 2nd
This is my second activity to retrieve data.
String userName=preferences.getString("userid","");
String password=preferences.getString("password","");
Log.d("user : second", ""+preferences.getString("userid",""));
Log.d("password : second", ""+preferences.getString("password",""));
Here Log is not displayed because of null value.

Check your preferences object (probably is null). That might be the problem, as the other String variables are never null, the can be empty string ("").
Are you missing the initialization of preferences in the second Activity just in this example?

String userName=preferences.getString("userid");
String password=preferences.getString("password");
Log.d("user : second", ""+userName);
Log.d("password : second", ""+password);
Could you please try this way.

In both activities just use this to get the SharedPreferences object:
SharedPreferences prefs = getSharedPreferences("PREFS", Context.MODE_PRIVATE);
It may be that you attempt to access different preferences files from different Activities.
Or just use
PreferenceManager.getDefaultSharedPreferences(this);

i just store the one integer value you must more then one value in it..
PreferenceConnector.writeInteger(home.this, PreferenceConnector.com_id, homeComp_id);
below the preferenceConnector class to be use in it...
public class PreferenceConnector {
public static final String PREF_NAME = "Shared Preference";
public static final int MODE = Context.MODE_PRIVATE;
public static final String com_id = "com_id";
public static void writeBoolean(Context context, String key, boolean value) {
getEditor(context).putBoolean(key, value).commit();
}
public static boolean readBoolean(Context context, String key, boolean defValue) {
return getPreferences(context).getBoolean(key, defValue);
}
public static void writeInteger(Context context, String key, int value) {
getEditor(context).putInt(key, value).commit();
}
public static int readInteger(Context context, String key, int defValue) {
return getPreferences(context).getInt(key, defValue);
}
public static SharedPreferences getPreferences(Context context) {
return context.getSharedPreferences(PREF_NAME, MODE);
}
public static Editor getEditor(Context context) {
return getPreferences(context).edit();
}
}
and then u also use the share preference value to other activity like below...
int Pref = PreferenceConnector.readInteger(mainpage.this, PreferenceConnector.com_id, 0);
hope above code to be useful...