我正在开发一个Facebook登录的应用程序。我正在尝试获取用户信息并将其发送到我的server.i我正在使用sdk 4.我正在尝试使用共享首选项来保存信息，但我不知道共享首选项。这是我的facebook登录活动。这是发射器活动。
>>User.select("subitem -> 'item1' AS subitem1", "subitem->'item2' AS subitem2").map(&:attributes)}
答案 0 :(得分：1)
Android SharedPreferences允许我们存储私有原语 应用程序数据以键值对的形式。有关详细信息，请参阅this。
要从共享偏好中读取，请使用类似的内容。
String dateFromSharedPreferences=getActivity().getPreferences(Context.MODE_PRIVATE);
sharedPref.getString("Username");
保存为共享偏好
SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("Username", YourUsername);
editor.putString("Password", YourPassword);
editor.apply();
您正在将值从LoginActivity传递到MainActivity，因此MainActivity中onCreate的代码功能如下所示，以便在textview中显示传递的值。
((TextView)findViewById(R.id.tv1)).setText(getIntent().getExtras().getString("full_name"));
((TextView)findViewById(R.id.tv2)).setText(getIntent().getExtras().getString("email_id"));
((TextView)findViewById(R.id.tv3)).setText(getIntent().getExtras().getString("gender"));
答案 1 :(得分：0)
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.DefaultListModel;
import javax.swing.Timer;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author Administrator
*/
public class NewJFrame extends javax.swing.JFrame {
/**
* Creates new form NewJFrame
*/
public NewJFrame() {
initComponents();
}
int b[];
Timer timer;
int n;
javax.swing.JLabel []a;
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jButton2 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList();
jButton1 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jScrollPane2 = new javax.swing.JScrollPane();
jList2 = new javax.swing.JList();
jTextField1 = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton2.setText("Create");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jScrollPane1.setViewportView(jList1);
jButton1.setText("Insert Code");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton3.setText("Set min to index 0");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
jButton4.setText("Start");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jScrollPane2.setViewportView(jList2);
jTextField1.setText("10");
jLabel1.setText("Amount:");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton2)
.addGap(20, 20, 20)
.addComponent(jButton3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 69, Short.MAX_VALUE)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton4))
.addComponent(jScrollPane2))
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 314, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(20, 20, 20))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton1)
.addGap(62, 62, 62))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(24, 24, 24)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 254, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jButton1)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton3)
.addComponent(jButton4)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 44, Short.MAX_VALUE)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 217, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(74, 74, 74))
);
pack();
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
n=Integer.parseInt(jTextField1.getText());
b=new int[n];
a= new javax.swing.JLabel[n];
int x=5, y=40;
for (int i=0; i< n; i++)
{
int random = (int )(Math.random()*20 + 1);
b[i]=random;
a[i]= new javax.swing.JLabel();
a[i].setText(random+ "");
a[i].setSize(20, 30);
x=x +20;
a[i].setBorder( BorderFactory.createRaisedBevelBorder());
a[i].setLocation(x, y);
// setLayout(new java.awt.GridBagLayout());
add(a[i], new java.awt.GridBagConstraints());
a[i].setVisible(true);
}
this.repaint();
jButton2.setVisible(false);
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
jList1.setListData(new String [0]);
String[] strings = { "int min, i, j,temp;", "for(i = 0; i < n-1; i++){", " min = i;", " for(j = i+1; j < n; j++)", " if(a[j] < a[min])"," min = j;"," if(min != i){"," temp=a[i];"," a[i]=a[j];"," a[j]=temp;"," }","}" };
jList1.setListData(strings);
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
int min=b[0],x=0,temp1;
for (int i=1;i<n;i++){
if (b[i]<min) min=b[i];
}
for (int i=0;i<n;i++){
if (b[i]==min) x=i;
}
temp1=b[x];
b[x]=b[0];
b[0]=temp1;
a[x].setText(b[x]+"");
a[0].setText(b[0]+"");
jButton3.setVisible(false);
DefaultListModel s=new DefaultListModel();
s.addElement("Selection sort: - Set the smallest element in first index!");
jList2.setModel(s);
}
ActionListener al=new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// timer = new Timer(10, al);
// timer.start();
// for (int k=0;k<10;k++){
// a[k].setText(b[k]+ "");
// }
}
};
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
int min,temp2, i, j; //min là chỉ số phần tử nhỏ nhất
for(i = 1; i < n-1; i++)
{
min = i;
for(j = i+1; j < n; j++){
if(b[j] < b[min])
min = j; //tìm min trong các phần tử còn lại
}
temp2=b[i];
b[i]=b[min];
b[min]=temp2;
a[min].setText(b[min]+"");
a[i].setText(b[i]+"");
//đổi chỗ nếu tìm thấy min
}
a[0].setBorder(BorderFactory.createLoweredBevelBorder());
//jButton4.addActionListener(al);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) throws InterruptedException {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JLabel jLabel1;
private javax.swing.JList jList1;
private javax.swing.JList jList2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextField jTextField1;
// End of variables declaration
}
在转向意图之前编写此代码。
SharedPreferences sharedPreferences;
SharedPreferences.Editor editor;
答案 2 :(得分：0)
我知道这类问题有很多答案，但我仍然给出了这个问题的答案，我希望有人能得到帮助。如果我们创建处理所有数据的方法，这很容易。 当收到facebook JSON对象后，请执行以下操作。
try {
Bundle bFacebookData = getFacebookData(object);
progressDialog.dismiss();
progressDialog.cancel();
setSessionData(bFacebookData);
}catch (JSONException e){
e.printStackTrace();
}
//在这里，您可以获取所有Facebook数据并以捆绑存储
private Bundle getFacebookData(JSONObject object)
{
try {
Bundle bundle = new Bundle();
//String id = object.getString("id");
try
{
URL profile_pic = new URL("https://graph.facebook.com/" + object.getString("id") + "/picture?width=200&height=150");
Log.i("profile_pic", profile_pic + "");
if (profile_pic.toString() != null)
{
bundle.putString("profile_pic", profile_pic.toString());
}
else
{
bundle.putString("profile_pic", "noProfilePic");
}
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
}
if (object.has("id"))
{
if (object.getString("id") != null)
{
bundle.putString("userId", object.getString("id"));
Log.i(TAG, "Info " + object.getString("id"));
}
else
{
bundle.putString("userId", "noUserId");
Log.i(TAG, "Info " + object.getString("id"));
}
}
if (object.has("first_name"))
{
if (object.getString("first_name") != null)
{
bundle.putString("first_name", object.getString("first_name"));
Log.i(TAG + "Info", object.getString("first_name"));
}
else
{
bundle.putString("first_name", "noFirstName");
Log.i(TAG + "Info", object.getString("first_name"));
}
}
if (object.has("last_name"))
{
if (object.getString("last_name") != null)
{
bundle.putString("last_name", object.getString("last_name"));
Log.i(TAG + "Info", object.getString("last_name"));
}
else
{
bundle.putString("last_name", "noLastName");
Log.i(TAG + "Info", object.getString("last_name"));
}
}
if (object.has("email"))
{
if (object.getString("email") != null)
{
bundle.putString("email", object.getString("email"));
Log.i(TAG + "Info", object.getString("email"));
}
else
{
bundle.putString("email", "noEmail");
Log.i(TAG + "Info", object.getString("email"));
}
}
//this is added dynamically
bundle.putString("phone", "noPhone");
if (object.has("gender"))
{
if (object.getString("gender") != null)
{
bundle.putString("gender", object.getString("gender"));
Log.i(TAG + "Info", object.getString("gender"));
}
else
{
bundle.putString("gender", "noGender");
Log.i(TAG + "Info", object.getString("gender"));
}
}
if (object.has("birthday"))
{
if (object.getString("birthday") != null)
{
bundle.putString("birthday", object.getString("birthday"));
Log.i(TAG + "Info", object.getString("birthday"));
}
else
{
bundle.putString("birthday", "noDateOfBirth");
Log.i(TAG + "Info", object.getString("birthday"));
}
}
if (object.has("location"))
{
if (object.getJSONObject("location").getString("name") != null)
{
bundle.putString("location", object.getJSONObject("location").getString("name"));
Log.i(TAG + "Info", object.getJSONObject("location").getString("name"));
}
else
{
bundle.putString("location", "noLocation");
Log.i(TAG + "Info", object.getJSONObject("location").getString("name"));
}
}
return bundle;
} catch (Exception e) {
e.printStackTrace();
} finally {
}
return null;
}
//在这里，您可以将数据存储在SharedPreferences中并开始新活动
String userId = "", userEmail = "", userFirstName = "", userLastName = "",
userPhone = "", dateOfBirth = "", gender = "", profilePic = "";
private void setSessionData(Bundle bundle)
{
try
{
userId = bundle.getString("userId");
userEmail = bundle.getString("email");
userFirstName = bundle.getString("first_name");
userLastName = bundle.getString("last_name");
userPhone = bundle.getString("phone");
dateOfBirth = bundle.getString("birthday");
gender = bundle.getString("gender");
profilePic = bundle.getString("profile_pic");
if (userId !=null)
{
SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("pref", MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString("userId", userId);
editor.putString("email", userEmail);
editor.putString("first_name", userFirstName);
editor.putString("last_name", userLastName);
editor.putString("phone", userPhone);
editor.putString("birthday", dateOfBirth);
editor.putString("gender", gender);
editor.putString("profile_pic", profilePic);
editor.apply();
Intent i = new Intent(activity, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
activity.startActivity(i);
}
else
{
//"Some thing went wrong Please try again"
}
}
catch (Exception e)
{
e.printStackTrach();
}
}
您从SharePreferences
接收数据的另一个班级SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("pref", MODE_PRIVATE);
((TextView)findViewById(R.id.tv1)).setText(sharedPreferences.getString("first_name", ""));
((TextView)findViewById(R.id.tv2)).setText(sharedPreferences.getString("last_name", ""));