私の主な活動はログイン活動を開始します。ユーザーが正常にログインすると、ApiResponseHandler
オブジェクトが呼び出さactivity.finish()
れます。すべてが正しく行われたように見えます。意図を通過する際に、それを引き起こす可能性のあるギャップは見当たりませんnull
。
エラーのポイントは、以下のコメントで示されます。MainActivity
public class MainActivity extends Activity {
static final int LOGIN_INTENT_ID = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//launch login activity
startActivityForResult(new Intent(this, LoginActivity.class), LOGIN_INTENT_ID);
}
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
//handle activity response
if (requestCode == LOGIN_INTENT_ID) {
if (resultCode == Activity.RESULT_OK) {
//intent is null, so .getSerializableExtra() fails
User user = (User) intent.getSerializableExtra("User");
Toast.makeText(getApplicationContext(), "Logged in as: " + user.getFirstName() + " " + user.getLastName(), Toast.LENGTH_SHORT).show();
}
}
}
}
私のログインアクティビティ:
public class LoginActivity extends Activity {
public static final Logger logger = Logger.getLogger(LoginActivity.class.getName());
Button loginButton;
EditText loginField;
EditText passwordField;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
loginButton = (Button)findViewById(R.id.loginFormLabelButton_Login);
loginField = (EditText)findViewById(R.id.loginFormLogin);
passwordField = (EditText)findViewById(R.id.loginFormPassword);
}
/**
* Login a user when the button is clicked
* @param v
*/
public void logUserIn(View v) {
loginButton.setText(R.string.loginFormLabelButton_Login_Working);
ApiRequest request = new ApiRequest();
request.setLogin(loginField.getText().toString());
request.setPassword(passwordField.getText().toString());
if (request.getLogin().length() == 0) {
showErrorDialog(getString(R.string.loginErrorDialog_LoginRequired));
return;
}
if (request.getPassword().length() == 0) {
showErrorDialog(getString(R.string.loginErrorDialog_PasswordRequired));
return;
}
//make request and handle results
ApiRequestHandler<User> apiHandler = new ApiRequestHandler<User>(User.class);
apiHandler.setUrl(getString(R.string.loginFormApiUrl));
apiHandler.setApiRequest(request);
apiHandler.setResponseHandler(new ApiResponseHandler(this, getIntent()));
apiHandler.execute();
loginButton.setText(R.string.loginFormLabelButton_Login);
}
....
}
このnew ApiResponseHandler(this, getIntent())
ように見えます...
public class ApiResponseHandler implements com.Bible_Bowl_Management.Api.ApiResponseHandler<User> {
private Activity activity;
private Intent intent;
public ApiResponseHandler(Activity activity, Intent intent) {
this.activity = activity;
this.intent = intent;
}
@Override
public void ResponseSuccessful(User user) {
intent.putExtra("User", user);
activity.setResult(Activity.RESULT_OK);
activity.finish();
}
@Override
public void ResponseNoContent() {
Toast.makeText(this.activity.getApplicationContext(), "No account found with these credentials", Toast.LENGTH_LONG).show();
}
}