android - SharedPreferences from one Fragment isn't registering data for a Login Activity on another Fragment -
i have fragment called loginfragment through user can register first time clicking on register button. upon clicking button new fragment, called registerfragment, opens user chooses , enters new username , password registered. when run app , enter fields under register , select ok, shows "saved info" in toast it's supposed to. when try logging in using username , password registered for, app doesn't recognize info , displays toast "please check entries , try again" should displayed when username exists or password incorrect, in case not case.
is sharedpreferences not saving username , password values because working 2 different fragments? appreciated!
registerfragment.java
public class registerfragment extends fragment { button register_btn; edittext username_signup_et, password_signup_et; private string key_uid = "uid"; private string key_password = "pwd"; private final string prefer_name = "registry"; private sharedpreferences sharedpreferences; private sharedpreferences.editor editor; string username; //logindatabaseadapter logindatabaseadapter; context context; public void myalertdialog(){ context = getactivity(); } public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate){ view v = inflater.inflate(r.layout.register_fragment_layout, container, false); sharedpreferences = getactivity().getsharedpreferences("loginprefs", context.mode_private);; editor = sharedpreferences.edit(); username_signup_et = (edittext)v.findviewbyid(r.id.username_signup_et); password_signup_et = (edittext)v.findviewbyid(r.id.password_signup_et); register_btn = (button)v.findviewbyid(r.id.register_btn); register_btn.setonclicklistener(new onclicklistener(){ @override public void onclick(view v) { string username = username_signup_et.gettext().tostring(); string password = password_signup_et.gettext().tostring(); if(username.equals("")||password.equals("")) { toast.maketext(getactivity(), "please enter values in fields!", toast.length_short).show(); } else{ register(); launchlogin(); } } }); return v; } //launch login activity public void launchlogin(){ fragmentmanager fm = getfragmentmanager(); fragmenttransaction ft = fm.begintransaction(); loginfragment lg = new loginfragment(); ft.addtobackstack("lg"); ft.replace(r.id.fragment_one_id, lg); ft.commit(); } // register account private void register() { // prefix keys user name editor.putstring("username" + "_" + key_uid, username_signup_et.gettext() .tostring()); editor.putstring("password" + "_" + key_password, password_signup_et.gettext() .tostring()); //editor.commit(); // commit values editor.apply(); toast.maketext(getactivity(), "saved info!", toast.length_short).show(); }// end of register } loginfragment.java
public class loginfragment extends fragment { button login_btn, register_btn; edittext username_et, password_et; private string key_uid = "uid"; private string key_password = "pwd"; private final string prefer_name = "registry"; private sharedpreferences sharedpreferences; private sharedpreferences.editor editor; string username; public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate){ super.oncreateview(inflater, container, savedinstancestate); view v = inflater.inflate(r.layout.login_fragment_layout, container, false); sharedpreferences = getactivity().getsharedpreferences("loginprefs", context.mode_private); editor = sharedpreferences.edit(); username_et = (edittext)v.findviewbyid(r.id.username_et); password_et = (edittext)v.findviewbyid(r.id.password_et); login_btn = (button)v.findviewbyid(r.id.login_btn); register_btn = (button)v.findviewbyid(r.id.register_btn); login_btn.setonclicklistener(new onclicklistener(){ @override public void onclick(view v) { // initialize username username = username_et.gettext().tostring(); boolean valid = isvalid(); if (valid) { string text = getresources().getstring(r.string.logging_in_str); toast.maketext(getactivity().getapplicationcontext(), text, toast.length_short).show(); if (!userexists() | !(passwordcorrect())) { text = getresources().getstring( r.string.error_username_str); toast.maketext(getactivity().getapplicationcontext(), text, toast.length_short).show(); } else { intent = new intent(getactivity(), diaryactivity.class); startactivity(i); } } //sharedpreferences = getactivity().getsharedpreferences("loginprefs", context.mode_private); //get username , password edittext string username = username_et.gettext().tostring(); string password = password_et.gettext().tostring(); if(username_et.length() > 0 && password_et.length() > 0) { string uname = null; string upassword = null; if (sharedpreferences.contains(username)) { uname = sharedpreferences.getstring("username", ""); } if (sharedpreferences.contains(password)) { upassword = sharedpreferences.getstring("password", ""); } //start new activity if (username.equals(uname) && password.equals(upassword)) { toast.maketext(getactivity(), "you entered: " + uname, toast.length_short).show(); intent = new intent(getactivity(), diaryactivity.class); startactivity(i); } } //string username = sharedpreferences.getstring("username", ""); //string pw = sharedpreferences.getstring("password", ""); //sharedpreferences.getstring("uid", ""); //sharedpreferences.getstring("pwd", ""); } }); register_btn.setonclicklistener(new onclicklistener(){ @override public void onclick(view v) { fragmentmanager fm = getfragmentmanager(); fragmenttransaction ft = fm.begintransaction(); registerfragment rg = new registerfragment(); ft.replace(r.id.register_fragment_id, rg); ft.commit(); } }); return v; } // getter user name public string getusername() { string str = username_et.gettext().tostring(); return str;// returns user name }// end of getusername() private boolean passwordcorrect() { // prefix key user name if (sharedpreferences.contains(username + "_" + key_uid)) { string pwd = sharedpreferences.getstring(username + "_" + key_password, ""); if (pwd.equals(password_et.gettext().tostring())) return true; } return false; } // getter user name private boolean userexists() { // prefix key user name if (sharedpreferences.contains(username + "_" + key_uid)) { string uid = sharedpreferences.getstring(username + "_" + key_uid, ""); if (uid.equals(username_et.gettext().tostring())) return true; } return false; }// end of userexists() private boolean isvalid() { boolean idempty = false; boolean passempty = false; if ((username_et.gettext().tostring().isempty())) { idempty = true; string text = getresources() .getstring(r.string.error_emptyusername); toast.maketext(getactivity().getapplicationcontext(), text, toast.length_short) .show(); } if ((password_et.gettext().tostring().isempty())) { passempty = true; string text = getresources() .getstring(r.string.error_emptypassword); toast.maketext(getactivity().getapplicationcontext(), text, toast.length_short) .show(); } return !(idempty | passempty); }// end of isvalid() }
you using different key data in loginfragment. ie trying access preference not exist. change code below
loginfragment:
private boolean userexists() { string uid = sharedpreferences.getstring("username" + "_" + key_uid, ""); return (uid.equals(username_et.gettext().tostring())) } change password well.
Comments
Post a Comment