sharedPreferencesに文字列を保存しようとしています。私は何が間違っているのか分からないが、String値を保存しない。sharedPreferencesの文字列値を保存しない
これはここで私は文字列値「電話」を保存していたコード です。 予告そのフラグメントページここ
package com.world.bolandian.watchme;
import android.app.Fragment;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.gson.Gson;
public class LoginFragment extends Fragment implements Listen {
Button loginBtn;
ServerRequest ser;
Connector c;
LoginCommunicationThread loginT;
private LoginUser logUser;
EditText phone,password;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_login, container, false);
}
public void setInterface(Connector c){
this.c=c;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ser=new ServerRequest();
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOGIN_SERVLET);
ser.setResponse(this);
loginT = new LoginCommunicationThread(ser);
phone = (EditText)getActivity().findViewById(R.id.userTxt);
password = (EditText)getActivity().findViewById(R.id.passwordTxt);
loginBtn = (Button) getActivity().findViewById(R.id.loginBtn);
loginBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//save phone number in sharedpreferences
SharedPreferences pref = getActivity().getPreferences(0);
SharedPreferences.Editor edt = pref.edit();
edt.putString("PHONE",String.valueOf(phone.getText()));
edt.commit();
Context context = getActivity();
PreferenceManager.getDefaultSharedPreferences(context).edit().putString("PHONE", String.valueOf(phone.getText()));
logUser = new LoginUser(phone.getText().toString(),password.getText().toString());
if (phone.getText().toString() == null)
{
Toast.makeText(getActivity(),"Please enter phone number", Toast.LENGTH_LONG).show();
}
if(password.getText().toString() == null)
{
Toast.makeText(getActivity(),"Please enter password", Toast.LENGTH_LONG).show();
}
else {
Gson g = new Gson();
String ans = g.toJson(logUser, LoginUser.class);
login(logUser);
}
}
});
}
public void login (LoginUser user)
{
LoginCommunicationThread con;
ServerRequest ser = new ServerRequest();
ser.setResponse(this);
Gson gson = new Gson();
String send = gson.toJson(user,LoginUser.class);
ser.addParamaters(Params.USER,send);
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOGIN_SERVLET);
con = new LoginCommunicationThread(ser);
con.start();
}
@Override
public void good() {
Toast.makeText(getActivity(), "Welcome", Toast.LENGTH_LONG).show();
Intent i = new Intent(getActivity(),MainActivity.class);
startActivity(i);
}
@Override
public void notGood() {
Toast.makeText(getActivity(),"Wrong password or phone",Toast.LENGTH_LONG).show();
}
@Override
public void notGoodServerEroorr() {
Toast.makeText(getActivity(), "Connection Error please try again", Toast.LENGTH_LONG);
}
}
iが値 "PHONE" を抽出しかし、私はnullを取得しておきます。何らかの理由でそれが値を取得doesntのデフォルトはnullです
package com.world.bolandian.watchme;
import android.app.Activity;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TabHost;
import android.widget.TextView;
import com.google.gson.Gson;
public class MainActivity extends Activity implements Listen {
private LockAndUnLock sendnotf;
TextView status;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
status = (TextView)findViewById(R.id.status);
TabHost tabHost = (TabHost) findViewById(R.id.tabHost);
tabHost.setup();
TabHost.TabSpec tabspec = tabHost.newTabSpec("main");
tabspec.setContent(R.id.main);
tabspec.setIndicator("Main");
tabHost.addTab(tabspec);
tabspec = tabHost.newTabSpec("gps");
tabspec.setContent(R.id.GPS);
tabspec.setIndicator("GPS");
tabHost.addTab(tabspec);
tabspec = tabHost.newTabSpec("info");
tabspec.setContent(R.id.INFO);
tabspec.setIndicator("Info");
tabHost.addTab(tabspec);
}
public void Lock (View view)
{
SharedPreferences sharedPreferences =
PreferenceManager.getDefaultSharedPreferences(this);
String phone = sharedPreferences.getString("PHONE", null);
PreferenceManager.getDefaultSharedPreferences(this).getString("PHONE",
null);
sendnotf = new LockAndUnLock(phone,1); // 1 = true = lock
Gson g = new Gson();
String ans=g.toJson(sendnotf, LockAndUnLock.class);
sendLockAndUnlock(sendnotf);
if (status.getVisibility() != View.VISIBLE) {
status.setVisibility(View.VISIBLE);
}
status.setText("LOCKED");
status.setTextColor(Color.RED);
}
public void UnLock (View view)
{
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String phone = sharedPreferences.getString("PHONE",null);
sendnotf = new LockAndUnLock(phone,0); // 0 = false = unlock
Gson g = new Gson();
String ans=g.toJson(sendnotf, LockAndUnLock.class);
sendLockAndUnlock(sendnotf);
if (status.getVisibility() != View.VISIBLE) {
status.setVisibility(View.VISIBLE);
}
status.setText("OPEN");
status.setTextColor(Color.GREEN);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void good() {
}
@Override
public void notGood() {
}
@Override
public void notGoodServerEroorr() {
}
public void sendLockAndUnlock(LockAndUnLock sendnotf){
RegisterCommunicationThread con;
ServerRequest ser = new ServerRequest();
ser.setResponse(this);
Gson gson = new Gson();
String send = gson.toJson(sendnotf, LockAndUnLock.class);
ser.addParamaters(Params.LOCKANDUNLOCK,send);
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOCKANDUNLOCK_SERVLET);
con = new RegisterCommunicationThread(ser);
con.start();
}
}
なぜSharedPreferences pref = getActivity()。getPreferences(0); 'を使用しますか?試しに 'SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(')の代わりに.. – Lal
ヒットするhttp://stackoverflow.com/questions/12074156/android-storing-retrieving-strings-with-shared-preferences – Zombie
断片。私はgetActivity() –