Android 로그인 활동 템플릿

Question

작동시키기위한 코드를 추가해야하는 내용과 장소는 무엇입니까? 기본적으로 아무 것도하지 않으며 단추는 "로그인 또는 등록"을 표시하지만 등록 활동은 표시하지 않습니다. 메뉴에서 "잃어버린 암호 복구"도 아무 것도하지 않습니다. finish() 후에 인 텐트를 작성하여 서명 한 후 새 액티비티를 열 수있었습니다. 이메일과 비밀번호에 관계없이 성공적으로 로그인합니다.

편집 : 코드는 다음과 같습니다.

public class LoginActivity extends Activity 
{ 
/** 
* A dummy authentication store containing known user names and passwords. 
* TODO: remove after connecting to a real authentication system. 
*/ 
private static final String[] CREDENTIALS = new String[] 
     { 
     "myaccount1@gmail.com:12345", "myaccount2@gmail.com:54321" 
     }; 

/** 
* The default email to populate the email field with. 
*/ 
public static final String EXTRA_EMAIL = "myaccount1@gmail.com"; 

/** 
* Keep track of the login task to ensure we can cancel it if requested. 
*/ 
private UserLoginTask mAuthTask = null; 

// Values for email and password at the time of the login attempt. 
private String mEmail; 
private String mPassword; 

// UI references. 
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); 

    // Set up the login form. 
    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.activity_login, menu); 
    return true; 
} 

/** 
* Attempts to sign in or register the account specified by the login form. 
* If there are form errors (invalid email, missing fields, etc.), the 
* errors are presented and no actual login attempt is made. 
*/ 
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 
    { 
     // Show a progress spinner, and kick off a background task to 
     // perform the user login attempt. 
     mLoginStatusMessageView.setText(R.string.login_progress_signing_in); 
     showProgress(true); 
     mAuthTask = new UserLoginTask(); 
     mAuthTask.execute((Void) null); 
    } 
} 

/** 
* Shows the progress UI and hides the login form. 
*/ 
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) 
private void showProgress(final boolean show) 
{ 
    // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow 
    // for very easy animations. If available, use these APIs to fade-in 
    // the progress spinner. 
    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); 
    } 
} 

/** 
* Represents an asynchronous login/registration task used to authenticate 
* the user. 
*/ 
public class UserLoginTask extends AsyncTask<Void, Void, Boolean> 
{ 
    @Override 
    protected Boolean doInBackground(Void... params) 
    { 
     // TODO: attempt authentication against a network service. 

     try 
     { 
      // Simulate network access. 
      Thread.sleep(2000); 
     } catch (InterruptedException e) 
     { 
      return false; 
     } 

     for (String credential : 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. 
     //CREDENTIALS[2]=mEmail+":"+mPassword; tried this for regisration 
     return true; 
    } 

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

     if (success) 
     { 
      finish(); 
      Intent myIntent = new Intent(LoginActivity.this,CalculatorActivity.class); 
      LoginActivity.this.startActivity(myIntent); 
     } else 
     { 
      mPasswordView 
        .setError(getString(R.string.error_incorrect_password)); 
      mPasswordView.requestFocus(); 
     } 
    } 

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

}

이 자격 증명의 기본 문자열을 잘 작동하지만 등록 프로세스를 구현하는 방법을 모른다는, 어떻게 그 mEmail 및 mPassword 자격 증명 문자열에 추가하는 방법은 무엇입니까?

Answer 1

CREDENTIALS는 프로그램의 처음 몇 줄에 정의 된 문자열 배열이며 수동으로 편집 할 수 있습니다. 예 :

private static final String[] CREDENTIALS = new String[] 
     { 
     "myaccount1@gmail.com:12345", "myaccount2@gmail.com:54321", "bla@bla.com:1234" 
     }; 

그러나이 템플릿 코드는 웹 서비스 데이터베이스 또는 이와 유사한 것에 대한 로그인을위한 것입니다. 로컬 데이터베이스에 로그인하려면 AsyncTask mumbo jumbo가 필요하지 않습니다. cancel! = true 일 때 trylogin() 함수에 인증 코드를 쓸 수 있습니다.