Question

我正在使用Android生成的登录活动，即使我的密码正确，它也会一直给我错误的密码错误。我已多次检查我的代码，但我找不到任何错误。它只是不启动我的Home活动并报告错误。有人可以检查我的代码并纠正我，如果我做错了...

**编辑：添加完整代码

*** editted：通过检查我的下一个活动解决了这个问题，该活动设置会话在没有会话登录时重定向到登录页面（显然我之前错过了）。感谢所有的帮助。

 private static final String[] DUMMY_CREDENTIALS = new String[] {
        "foo@example.com:hello", "bar@example.com:world" };

public static final String EXTRA_EMAIL = "com.example.android.authenticatordemo.extra.EMAIL";

private UserLoginTask mAuthTask = null;
private String mEmail;
private String mPassword;
private EditText mEmailView;
private EditText mPasswordView;
private View mLoginFormView;
private View mLoginStatusView;
private TextView mLoginStatusMessageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_login);

    mEmail = getIntent().getStringExtra(EXTRA_EMAIL);
    mEmailView = (EditText) findViewById(R.id.email);
    mEmailView.setText(mEmail);

    mPasswordView = (EditText) findViewById(R.id.password);
    mPasswordView
            .setOnEditorActionListener(new TextView.OnEditorActionListener() {
                @Override
                public boolean onEditorAction(TextView textView, int id,
                        KeyEvent keyEvent) {
                    if (id == R.id.login || id == EditorInfo.IME_NULL) {
                        attemptLogin();
                        return true;
                    }
                    return false;
                }
            });

    mLoginFormView = findViewById(R.id.login_form);
    mLoginStatusView = findViewById(R.id.login_status);
    mLoginStatusMessageView = (TextView) findViewById(R.id.login_status_message);

    findViewById(R.id.sign_in_button).setOnClickListener(
            new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    attemptLogin();
                }
            });
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    getMenuInflater().inflate(R.menu.login, menu);
    return true;
}


public void attemptLogin() {
    if (mAuthTask != null) {
        return;
    }

    // Reset errors.
    mEmailView.setError(null);
    mPasswordView.setError(null);

    // Store values at the time of the login attempt.
    mEmail = mEmailView.getText().toString();
    mPassword = mPasswordView.getText().toString();

    boolean cancel = false;
    View focusView = null;

    // Check for a valid password.
    if (TextUtils.isEmpty(mPassword)) {
        mPasswordView.setError(getString(R.string.error_field_required));
        focusView = mPasswordView;
        cancel = true;
    } else if (mPassword.length() < 4) {
        mPasswordView.setError(getString(R.string.error_invalid_password));
        focusView = mPasswordView;
        cancel = true;
    }

    // Check for a valid email address.
    if (TextUtils.isEmpty(mEmail)) {
        mEmailView.setError(getString(R.string.error_field_required));
        focusView = mEmailView;
        cancel = true;
    } else if (!mEmail.contains("@")) {
        mEmailView.setError(getString(R.string.error_invalid_email));
        focusView = mEmailView;
        cancel = true;
    }

    if (cancel) {
        // There was an error; don't attempt login and focus the first
        // form field with an error.
        focusView.requestFocus();
    } else {

        mLoginStatusMessageView.setText(R.string.login_progress_signing_in);
        showProgress(true);
        mAuthTask = new UserLoginTask();
        mAuthTask.execute((Void) null);
    }
}


@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
        int shortAnimTime = getResources().getInteger(
                android.R.integer.config_shortAnimTime);

        mLoginStatusView.setVisibility(View.VISIBLE);
        mLoginStatusView.animate().setDuration(shortAnimTime)
                .alpha(show ? 1 : 0)
                .setListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        mLoginStatusView.setVisibility(show ? View.VISIBLE
                                : View.GONE);
                    }
                });

        mLoginFormView.setVisibility(View.VISIBLE);
        mLoginFormView.animate().setDuration(shortAnimTime)
                .alpha(show ? 0 : 1)
                .setListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        mLoginFormView.setVisibility(show ? View.GONE
                                : View.VISIBLE);
                    }
                });
    } else {
        // The ViewPropertyAnimator APIs are not available, so simply show
        // and hide the relevant UI components.
        mLoginStatusView.setVisibility(show ? View.VISIBLE : View.GONE);
        mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
    }
}


public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
    @Override
    protected Boolean doInBackground(Void... params) {
        for (String credential : DUMMY_CREDENTIALS) {
            String[] pieces = credential.split(":");
            if (pieces[0].equals(mEmail)) {
                 // Account exists, return true if the password matches.
                 return pieces[1].equals(mPassword);

            }
        }
            // TODO: register the new account here.
        return false;
    }

    @Override
    protected void onPostExecute(final Boolean success) {
        mAuthTask = null;
        showProgress(false);
        if (success) {
            finish();
            Intent myIntent = new Intent(LoginActivity.this, GarajHome.class);
            LoginActivity.this.startActivity(myIntent);
        } else {
            mPasswordView.setError(getString(R.string.error_incorrect_password));
            mPasswordView.requestFocus();
        }
    }

    @Override
    protected void onCancelled() {
        mAuthTask = null;
        showProgress(false);
    }
}

Answer 1

@Override
        protected Boolean doInBackground(Void... params) {
           boolean isCorrect = false;
            for (String credential : DUMMY_CREDENTIALS) {
                String[] pieces = credential.split(":");
                if (pieces[0].equalsIgnoreCase(mEmail)&& pieces[1].equalsIgnoreCase(mPassword)) {

                          isCorrect=true;
                          break;

                }
            }
                // TODO: register the new account here.
            return isCorrect;
        }

我使用你的代码写我的删除了一些逻辑它为我工作我认为我删除的代码问题是看看我的代码

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

import com.pk.to_do_timer.R;



public class test extends Activity{
private static final String[] DUMMY_CREDENTIALS = new String[] {
        "foo@example.com:hello", "bar@example.com:world" };

public static final String EXTRA_EMAIL = "com.example.android.authenticatordemo.extra.EMAIL";

private UserLoginTask mAuthTask = null;
;

private EditText mEmailView;
private EditText mPasswordView;
private View mLoginFormView;
private View mLoginStatusView;
private TextView mLoginStatusMessageView;
private String mEmail="foo@example.com";
private String mPassword = "hello";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_login);



    findViewById(R.id.sign_in_button).setOnClickListener(
            new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    attemptLogin();
                }
            });
}




public void attemptLogin() {
    if (mAuthTask != null) {
        return;
    }



       // showProgress(true);
        mAuthTask = new UserLoginTask();
        mAuthTask.execute((Void) null);
    }





@SuppressLint("NewApi")
public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
    @Override
    protected Boolean doInBackground(Void... params) {
         boolean isCorrect = false;
         for (String credential : DUMMY_CREDENTIALS) {
             String[] pieces = credential.split(":");
             if (pieces[0].equalsIgnoreCase(mEmail)&& pieces[1].equalsIgnoreCase(mPassword)) {

                       isCorrect=true;
                       break;

             }
         }

             // TODO: register the new account here.
         return isCorrect;
    }

    @Override
    protected void onPostExecute(final Boolean success) {
        mAuthTask = null;

        if (success) {
            finish();
            Intent myIntent = new Intent(test.this, GarajHome.class);
            test.this.startActivity(myIntent);
        } 
    }

    @Override
    protected void onCancelled() {
        mAuthTask = null;
        //showProgress(false);
    }
}
}

Android生成的LoginActivity错误（密码不正确）

1 个答案: