I am making an android app to login and signup using android SQLite
. I am facing an error while login or signup.
Logcat
03-14 13:07:01.910 19906-19906/com.example.dp_7_kholood.taskone E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.dp_7_kholood.taskone, PID: 19906 java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.database.sqlite.SQLiteException: no such column: uname (code 1): , while compiling: select uname, pass from contacts
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1316)
at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1255)
at com.example.dp_7_kholood.taskone.DatabaseHelper.searchPass(DatabaseHelper.java:58)
at com.example.dp_7_kholood.taskone.Login.onButtonClick(Login.java:32)
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
public class Contact {
String name, email,username,pass;
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
}
DatabaseHelper
public class DatabaseHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME= "contacts.db";
private static final String TABLE_NAME ="contacts";
private static final String COLUMN_ID ="id";
private static final String COLUMN_NAME ="name";
private static final String COLUMN_EMAIL ="email";
private static final String COLUMN_USERNAME="username";
private static final String COLUMN_PASS="pass";
SQLiteDatabase db;
private static final String TABLE_CREATE= "create table contacts (id integer primary key not null , "+ "name text not null , email text not null , username text not null , pass text not null);";
public DatabaseHelper(Context context){
super(context , DATABASE_NAME, null,DATABASE_VERSION );
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(TABLE_CREATE);
this.db=db;
}
public void insertContact(Contact c){
db=this.getWritableDatabase();
ContentValues values=new ContentValues();
String query= "select * from contacts";
Cursor cursor=db.rawQuery(query, null);
int count= cursor.getCount();
values.put(COLUMN_ID,count);
values.put(COLUMN_NAME , c.getName());
values.put(COLUMN_USERNAME, c.getUsername());
values.put(COLUMN_EMAIL , c.getEmail());
values.put(COLUMN_PASS , c.getPass());
db.insert(TABLE_NAME, null, values);
db.close();
}
public String searchPass(String uname){
db=this.getReadableDatabase();
String query=" select uname, pass from "+TABLE_NAME;
Cursor cursor =db.rawQuery(query,null);
String a,b;
b="not found";
if(cursor.moveToFirst())
{
do{
a=cursor.getString(0);
if (a.equals(uname)){
b=cursor.getString(1);
break;
}
}
while(cursor.moveToNext());
}
return b;
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
String query ="DROP TABLE IF EXISTS "+TABLE_NAME;
db.execSQL(query);
this.onCreate(db);
}
}
Login
public class Login extends AppCompatActivity {
DatabaseHelper helper=new DatabaseHelper(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
}
public void onButtonClick(View v){
if (v.getId() == R.id.Blogin);
{
EditText a = (EditText)findViewById(R.id.Tfusername);
String str= a.getText().toString();
EditText b = (EditText)findViewById(R.id.Tfpassword);
String pass= b.getText().toString();
String password= helper.searchPass(str);
if(pass.equals(password)){
Intent i= new Intent(Login.this, SingUp.class);
i.putExtra("Username",str);
startActivity(i);
}
else{
Toast t=Toast.makeText(Login.this, "Username and Paasword not match!", Toast.LENGTH_SHORT);
t.show();
}}
if(v.getId()==R.id.BtnSingup){
Intent i= new Intent(Login.this, SingUp.class);
startActivity(i);
}
}
}
SingUp
public class SingUp extends Activity {
DatabaseHelper helper=new DatabaseHelper(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.signup);
}
public void OnSignUp(View v){
if (v.getId()==R.id.Bsingup){
EditText name= (EditText)findViewById(R.id.Tfname);
EditText username= (EditText)findViewById(R.id.Tfusername);
EditText email= (EditText)findViewById(R.id.Tfemail);
EditText pass1= (EditText)findViewById(R.id.Tfpass1);
EditText pass2= (EditText)findViewById(R.id.Tfpass2);
String namestr = name.getText().toString();
String usernamestr = username.getText().toString();
String emailstr = email.getText().toString();
String pass1str = pass1.getText().toString();
String pass2str = pass2.getText().toString();
if(!pass1str.equals(pass2str)){
Toast pass=Toast.makeText(SingUp.this, "Paasword not match!", Toast.LENGTH_SHORT);
pass.show();
}
else{
Contact c =new Contact();
c.setName(namestr);
c.setEmail(emailstr);
c.setUsername(usernamestr);
c.setPass(pass1str);
helper.insertContact(c);
}
}
}
}
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