嗨，我在运行时遇到了这些错误， 当我第一次与Facebook集成时，我运行应用程序会给我该错误
无效的范围用户朋友
然后我尝试更改权限，例如电子邮件，basic_profile等，但是现在当我运行该应用程序时，它登录但仍保留在CardHeader中，而没有转到我的LoginActivity，只是facebook的登录按钮已更改为注销。之后，现在我的应用在运行和调试时崩溃，在我给setText用户配置文件的名称和图像的方法中，它会给我MainActivity的错误。
，我在应用程序中创建了一个用于自定义帐户的本地数据库，但是当我单击以单击创建帐户和NullPointerExceptions方法时，当数据发布到数据库中时，它也给我NullPointerExceptions错误我自己创建的内容不适用于该活动
但是当我尝试登录时，isInputField方法有效，但是当我在插入电子邮件和密码后单击“登录”按钮时，我的应用程序崩溃并在isInputField方法中给出了错误
未找到此类列user_password
但是当我检查数据库中的表时，有verifyFromSqlite列。
因此，要消除所有这些错误，我应该怎么做，请帮助我，我对此感到非常担心，因为这是我的最后一个项目。
我附上我所有的user_friend，LoginActivity，SignUpActivity和数据库类的代码
MainActivity Java类代码
LoginActivity public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
private CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
private final AppCompatActivity activity=LoginActivity.this;
private NestedScrollView nestedScrollView;
private TextInputLayout textInputLayoutEmail;
private TextInputLayout textInputLayoutPassword;
private TextInputEditText textInputEditTextEmail;
private TextInputEditText textInputEditTextPassword;
private AppCompatButton login;
private AppCompatTextView forgottonPassword;
private AppCompatTextView linkRegiter;
private InputValidation inputValidation;
private DatabaseHelper databaseHelper;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_login);
fbLogin();
if (getSupportActionBar()!=null)
{
getSupportActionBar().hide();
}
initViews();
initListeners();
initObjects();
}
protected void fbLogin(){
callbackManager=CallbackManager.Factory.create();
accessTokenTracker=new AccessTokenTracker() {
@Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken currentToken) {
}
};
profileTracker=new ProfileTracker() {
@Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
nextActivity(newProfile);
}
};
accessTokenTracker.startTracking();
profileTracker.startTracking();
LoginButton loginButton = (LoginButton) findViewById(R.id.login_button);
FacebookCallback<LoginResult> callback= new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
Profile profile= Profile.getCurrentProfile();
nextActivity(profile);
}
@Override
public void onCancel() {
}
@Override
public void onError(FacebookException error) {
}
};
loginButton.setReadPermissions("user_friends");
loginButton.registerCallback(callbackManager, callback);
}
@Override
protected void onResume() {
super.onResume();
Profile profile= Profile.getCurrentProfile();
nextActivity(profile);
}
@Override
protected void onPause() {
super.onPause();
}
@Override
protected void onStop() {
super.onStop();
accessTokenTracker.stopTracking();
profileTracker.stopTracking();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode,resultCode,data);
}
private void nextActivity(Profile profile){
if (profile!=null){
Intent main = new Intent(LoginActivity.this,MainActivity.class);
main.putExtra("name",profile.getFirstName());
main.putExtra("imageUrl",profile.getProfilePictureUri(100,80)).toString();
// main.putExtra("id", profile.getId());
startActivity(main);
}
}
private void initViews(){
nestedScrollView= (NestedScrollView) findViewById(R.id.nestedScrollView) ;
textInputLayoutEmail= (TextInputLayout) findViewById(R.id.textInputLayoutEmail);
textInputLayoutPassword= (TextInputLayout) findViewById(R.id.textInputLayoutPassword);
textInputEditTextEmail= (TextInputEditText) findViewById(R.id.textInputEditTextEmail);
textInputEditTextPassword= (TextInputEditText) findViewById(R.id.textInputEditTextPassword);
Log.e("textinputedittextmail",textInputEditTextEmail.toString());
login=(AppCompatButton) findViewById(R.id.login);
linkRegiter= (AppCompatTextView) findViewById(R.id.linkRegister);
}
private void initListeners(){
login.setOnClickListener(this);
linkRegiter.setOnClickListener(this);
}
public void initObjects(){
databaseHelper=new DatabaseHelper(activity);
inputValidation=new InputValidation(activity);
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.login:
Log.v("abc", textInputEditTextEmail.getText().toString());
verifyFromSQLite();
break;
case R.id.linkRegister:
Intent intentRegister= new Intent(getApplicationContext(),SignupActivity.class);
startActivity(intentRegister);
break;
}
}
private void verifyFromSQLite(){
if (!inputValidation.isInputEditTextFilled(textInputEditTextEmail, textInputLayoutEmail, "Please Enter Valid Email")){
return;}
if (!inputValidation.isInputEditTextEmail(textInputEditTextEmail, textInputLayoutEmail, "Please Enter Valid Email"))
return;
if (!inputValidation.isInputEditTextFilled(textInputEditTextPassword, textInputLayoutPassword, "Please Enter Valid Password"))
return;
if (databaseHelper.checkUser(textInputEditTextEmail.getText().toString().trim(),
textInputEditTextPassword.getText().toString().trim())){
Intent accountIntent= new Intent(activity, MainActivity.class);
accountIntent.putExtra("Email",textInputEditTextEmail.getText().toString().trim());
emptyInputEditText();
startActivity(accountIntent);
}else {
Snackbar.make(nestedScrollView, "Please Enter Valid Email or Password", Snackbar.LENGTH_LONG).show();
}
}
private void emptyInputEditText(){
textInputEditTextEmail.setText("");
textInputEditTextPassword.setText("");
}
}
Java类代码：
SignUpdatabaseHelper javaclass代码
public class SignupActivity extends AppCompatActivity implements View.OnClickListener {
private final AppCompatActivity activity=SignupActivity.this;
private NestedScrollView nestedScrollView;
private TextInputLayout textInputLayoutFirstName;
private TextInputLayout textInputLayoutLastName;
private TextInputLayout textInputLayoutEmail;
private TextInputLayout textInputLayoutPassword;
private TextInputLayout textInputLayoutConfirmPassword;
private TextInputEditText textInputEditTextFirstName;
private TextInputEditText textInputEditTextLastName;
private TextInputEditText textInputEditTextEmail;
private TextInputEditText textInputEditTextPassword;
private TextInputEditText textInputEditTextConfirmPassword;
private AppCompatButton appCompatButtonCreateAccount;
private AppCompatTextView linklogin;
private InputValidation inputValidation;
private DatabaseHelper databaseHelper;
private User user;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_signup);
if (getSupportActionBar()!=null)
{
getSupportActionBar().hide();
}
initViews();
initListeners();
initObjects();
}
private void initViews(){
nestedScrollView=(NestedScrollView) findViewById(R.id.nestedScrollView);
textInputLayoutFirstName= (TextInputLayout) findViewById(R.id.textInputLayoutFirstName);
textInputLayoutLastName= (TextInputLayout) findViewById(R.id.textInputLayoutLastName);
textInputLayoutEmail= (TextInputLayout) findViewById(R.id.textInputLayoutEmail);
textInputLayoutPassword= (TextInputLayout) findViewById(R.id.textInputLayoutPassword);
textInputLayoutConfirmPassword= (TextInputLayout) findViewById(R.id.textInputLayoutConfirmPassword);
textInputEditTextEmail= (TextInputEditText) findViewById(R.id.textInputEditTextEmail);
textInputEditTextPassword= (TextInputEditText) findViewById(R.id.textInputEditTextPassword);
appCompatButtonCreateAccount=(AppCompatButton) findViewById(R.id.appCompatButtonCreateAccount);
linklogin= (AppCompatTextView) findViewById(R.id.linklogin);
}
private void initListeners(){
appCompatButtonCreateAccount.setOnClickListener(this);
linklogin.setOnClickListener(this);
}
public void initObjects(){
databaseHelper=new DatabaseHelper(activity);
inputValidation=new InputValidation(activity);
user=new User();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.appCompatButtonCreateAccount:
postDataToSQLite();
break;
case R.id.linklogin:
finish();
break;
}
}
private void postDataToSQLite(){
if (!inputValidation.isInputEditTextFilled(textInputEditTextFirstName, textInputLayoutFirstName, "Please Enter Full Name"))
return;
if (!inputValidation.isInputEditTextFilled(textInputEditTextLastName, textInputLayoutLastName, "Please Enter Full Name"))
return;
if (!inputValidation.isInputEditTextEmail(textInputEditTextEmail, textInputLayoutEmail, "Please Enter Valid Email"))
return;
if (!inputValidation.isInputEditTextFilled(textInputEditTextEmail, textInputLayoutEmail,"Please Enter Valid Email" ))
return;
if (!inputValidation.isInputEditTextFilled(textInputEditTextPassword, textInputLayoutPassword, "Please Enter Password"))
return;
if (!databaseHelper.checkUser(textInputEditTextEmail.getText().toString().trim())){
user.setFirstName(textInputEditTextFirstName.getText().toString().trim());
user.setLastName(textInputEditTextLastName.getText().toString().trim());
user.setEmail(textInputEditTextEmail.getText().toString().trim());
user.setEmail(textInputEditTextPassword.getText().toString().trim());
databaseHelper.addUser(user);
Snackbar.make(nestedScrollView, "Registration Successful",Snackbar.LENGTH_LONG).show();
emptyInputEditText();
}else {
Snackbar.make(nestedScrollView, "Already a member Please Login", Snackbar.LENGTH_LONG).show();
}
}
private void emptyInputEditText(){
textInputEditTextFirstName.setText("");
textInputEditTextLastName.setText("");
textInputEditTextEmail.setText("");
textInputEditTextPassword.setText("");
textInputEditTextConfirmPassword.setText("");
}
}
inputValidation Java类代码
public class DatabaseHelper extends SQLiteOpenHelper {
public static final int DATABASE_VERSION=1;
public static final String DATABASE_NAME="userManager.db";
public static final String TABLE_USER="user";
public static final String COLUMN_USER_ID="user_id";
public static final String COLUMN_USER_FIRSTNAME="user_firstName";
public static final String COLUMN_USER_LASTNAME="user_lastName";
public static final String COLUMN_USER_EMAIL="user_email";
public static final String COLUMN_USER_PASSWORD="user_password";
public String CREATE_USER_TABLE="CREATE TABLE "+TABLE_USER+"("
+ COLUMN_USER_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"+ COLUMN_USER_FIRSTNAME + " TEXT,"
+ COLUMN_USER_LASTNAME+ " TEXT,"+COLUMN_USER_EMAIL + " TEXT,"+COLUMN_USER_PASSWORD
+" TEXT" + ")";
private String DROP_USER_TABLE="DROP TABLE IF EXISTS "+TABLE_USER;
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_USER_TABLE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL(DROP_USER_TABLE);
onCreate(db);
}
public void addUser(User user){
SQLiteDatabase db=this.getWritableDatabase();
ContentValues values=new ContentValues();
values.put(COLUMN_USER_FIRSTNAME, user.getFirstName());
values.put(COLUMN_USER_LASTNAME, user.getLastName());
values.put(COLUMN_USER_EMAIL, user.getEmail());
values.put(COLUMN_USER_PASSWORD, user.getPassword());
db.insert(TABLE_USER, null,values);
db.close();
}
public boolean checkUser(String email){
String[] columns={COLUMN_USER_ID};
SQLiteDatabase db=this.getWritableDatabase();
String selection= COLUMN_USER_EMAIL+ " = ?";
String [] selectionArgs={email };
Cursor cursor= db.query(TABLE_USER,
columns,
selection,
selectionArgs,
null,
null,
null);
int cursorCount=cursor.getCount();
cursor.close();
db.close();
if (cursorCount>0){
return true;
}
return false;
}
public boolean checkUser(String email , String password){
String[] columns={
COLUMN_USER_ID
};
SQLiteDatabase db=this.getWritableDatabase();
String selection= COLUMN_USER_EMAIL+ " = ?" + " AND " + COLUMN_USER_PASSWORD+" =?";
String [] selectionArgs ={ email, password };
Cursor cursor= db.query(TABLE_USER,
columns,
selection,
selectionArgs,
null,
null,
null);
int cursorCount=cursor.getCount();
cursor.close();
db.close();
if (cursorCount>0){
return true;
}
return false;
}
}
主要Activity类的Java代码
public class InputValidation {
private Context context;
public InputValidation(Context context){
this.context=context;
}
public boolean isInputEditTextFilled(TextInputEditText textInputEditText, TextInputLayout textInputLayout, String message){
String value = "";
value=textInputEditText.getText().toString().trim();
if (value.isEmpty()){
textInputLayout.setError(message);
hideKeyboardFrom(textInputEditText);
return false;
}else {
textInputLayout.setErrorEnabled(false);
}
return true;
}
public boolean isInputEditTextEmail(TextInputEditText textInputEditText, TextInputLayout textInputLayout, String message){
String value = textInputEditText.getText().toString().trim();
if (value.isEmpty()|| !Patterns.EMAIL_ADDRESS.matcher(value).matches()){
textInputLayout.setError(message);
hideKeyboardFrom(textInputEditText);
return false;
}else {
textInputLayout.setErrorEnabled(false);
}
return true;
}
public boolean isInputEditTextMatches(TextInputEditText textInputEditText, TextInputEditText textInputEditText2 , TextInputLayout textInputLayout, String message){
String value1 = "";
value1=textInputEditText.getText().toString().trim();
String value2 = "";
value2=textInputEditText.getText().toString().trim();
if (!value1.contentEquals(value2)){
textInputLayout.setError(message);
hideKeyboardFrom(textInputEditText);
return false;
}else {
textInputLayout.setErrorEnabled(false);
}
return true;
}
private void hideKeyboardFrom(View view){
InputMethodManager inputMethodManager= (InputMethodManager) context.getSystemService(Activity.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
}
我没有附加public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
private ShareDialog shareDialog;
private String name=" ";
private String imageUrl=" ";
//private String id=" ";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(this);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
fabShare();
getAndSetData();
new MainActivity.DownloadImage((ImageView)findViewById(R.id.profilePic));
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
if (savedInstanceState==null) {
getSupportFragmentManager().beginTransaction().replace(R.id.content_main,
new ActivityActivity()).commit();
navigationView.setCheckedItem(R.id.nav_activity);
}
}
private void fabShare(){
FloatingActionButton fab =(FloatingActionButton)findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ShareLinkContent content= new ShareLinkContent.Builder().build();
shareDialog.show(content);
}
});
}
private void getAndSetData(){
Bundle inBundle=getIntent().getExtras();
name=inBundle.get("name").toString();
imageUrl=inBundle.get("imageUrl").toString();
//id=inBundle.get("id").toString();
TextView yourName=(TextView) findViewById(R.id.yourName);
TextView yourId=(TextView) findViewById(R.id.yourId);
yourName.setText(name);
//yourId.setText(id);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.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);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_activity) {
getSupportFragmentManager().beginTransaction().replace(R.id.content_main,
new ActivityActivity()).commit();
} else if (id == R.id.nav_history) {
getSupportFragmentManager().beginTransaction().replace(R.id.content_main,
new HistoryActivity()).commit();
} else if (id == R.id.nav_settings) {
} else if (id == R.id.nav_logout){
LoginManager.getInstance().logOut();
Intent login=new Intent(MainActivity.this,LoginActivity.class);
startActivity(login);
finish();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public class DownloadImage extends AsyncTask<String,Void ,Bitmap>{
ImageView bmImage;
public DownloadImage(ImageView bmImage){
this.bmImage=bmImage;
}
@Override
protected Bitmap doInBackground(String... urls) {
String urlDisplay=urls[0];
Bitmap bitmap=null;
try {
InputStream inputStream= new java.net.URL(urlDisplay).openStream();
bitmap= BitmapFactory.decodeStream(inputStream);
}catch (Exception e){
Log.e("Error",e.getMessage());
e.printStackTrace();
}
return bitmap;
}
@Override
protected void onPostExecute(Bitmap bitmap) {
bmImage.setImageBitmap(bitmap);
}
}
}
代码，因为它超出了限制和用户类别
在用户类中，只有用于数据库列的getter和setter。