Erro na tela de Login - Projeto pessoal
Estou tentando fazer uma tela de login para um projeto que estou criando e está dando um problema quando clico no botão Login. Era pra aparecer uma mensagem de alerta no Toast, mas aparece esse texto "Index -1 requested, with a size of 1". Segue o código:
package com.example.busquetaxi;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import android.support.v7.app.ActionBarActivity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void RegisteringClick(View view) {
Intent it = new Intent(this, RegisteringActivity.class);
startActivity(it);
}
public void LoginClick(View view) {
SQLiteDatabase db = openOrCreateDatabase("usuarios.db", Context.MODE_PRIVATE, null);
EditText txtEmail = (EditText) findViewById(R.id.txtEmail);
EditText txtPassword = (EditText) findViewById(R.id.txtPassword);
try {
Cursor cursor = db.rawQuery("SELECT password FROM usuarios WHERE email = ?" ,
new String[]{String.valueOf(txtEmail.getText().toString())});
Toast.makeText(getBaseContext(), cursor.getString(cursor.getColumnIndex("password")), Toast.LENGTH_LONG).show();
if (cursor.getString(cursor.getColumnIndex("password")).equals(SHA(txtPassword))) {
/*Intent it = new Intent(this, ListActivity.class);
startActivity(it);*/
db.close();
Toast.makeText(getBaseContext(), "Login efetuado com sucesso", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getBaseContext(), "Email ou senha errados",Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
}
}
public String SHA(EditText password) {
StringBuilder pas = new StringBuilder();
MessageDigest algorithm = null;
try {
algorithm = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
try {
byte hash[] = algorithm.digest(password.toString().getBytes("UTF-8"));
for (byte b : hash){
pas.append(String.format("%02X", 0xFF & b));
}
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
}
return pas.toString();
}
@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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Esse é o xml:
[XML]
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/lbEmail" />
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textEmailAddress" >
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/lbPassword" />
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPassword" />
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="LoginClick"
android:text="@string/lbLogin" />
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="RegisteringClick"
android:text="@string/lbRegistering" />
[/XML]
A mensagem que aparece no Logcat é:
[quote]08-09 15:32:13.762: I/WindowManager(79): createSurface Window{413e53d8 Toast paused=false}: DRAW NOW PENDING[/quote]
