Saripaar 验证库抛出未找到规则错误

Question

我正在尝试在我的项目中使用 Saripaar 验证，但出现以下错误：

java.lang.IllegalStateException: No rules found. You must have at least one rule to validate. If you are using custom annotations, make sure that you have registered them using the 'Validator.register()' method.

我的架构将处理视图的责任分离到 class，例如对于登录Activity 我有 LoginView，这是我处理视图逻辑的地方，例如 ButterKnife 注入、事件监听、等。在这个 class 我有我的注释 fields.My LoginView 看起来像这样：

import android.content.res.ColorStateList;
import android.support.design.widget.Snackbar;
import android.support.v4.content.ContextCompat;
import android.support.v4.widget.ImageViewCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.widget.AppCompatEditText;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;

import com.mobsandgeeks.saripaar.ValidationError;
import com.mobsandgeeks.saripaar.Validator;
import com.mobsandgeeks.saripaar.annotation.Email;
import com.mobsandgeeks.saripaar.annotation.NotEmpty;
import com.mobsandgeeks.saripaar.annotation.Password;
import com.serti.android.feenicia.validatortest.R;
import com.serti.android.feenicia.validatortest.screen.login.LoginActivity;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import rx.Observable;
import rx.subjects.PublishSubject;

public class LoginView implements Validator.ValidationListener {
    public static final String LOGIN_ACTION = "LOGIN";
    @BindView(R.id.login_button)
    Button loginButton;
    @BindView(R.id.username_edittext)
    @NotEmpty
    @Email
    AppCompatEditText usernameEditText;
    @BindView(R.id.password_edittext)
    @Password(min = 8, scheme = Password.Scheme.ALPHA_NUMERIC_MIXED_CASE_SYMBOLS)
    AppCompatEditText passwordEditText;
    @BindView(R.id.eye_imageview)
    ImageView eyeImageView;
    @BindView(R.id.loading_progressbar)
    ProgressBar loadingProgressBar;

    private boolean passwordIsVisible;

    private AlertDialog confirmPaymentDialog;
    private LoginActivity context;
    private View rootView;

    private PublishSubject<String> clickSubject = PublishSubject.create();

    Validator validator;

    public LoginView(LoginActivity context){
        this.context = context;
        FrameLayout parent = new FrameLayout(context);
        parent.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
        rootView = LayoutInflater.from(context).inflate(R.layout.activity_login, parent, true);
        ButterKnife.bind(this, rootView);

        validator = new Validator(context);
        validator.setValidationListener(this);

        eyeImageView.setOnClickListener(v -> handleClick(v.getId()));
        loginButton.setOnClickListener(v -> handleClick(v.getId()));
        passwordIsVisible = false;
    }

    @Override
    public void onValidationSucceeded() {
        String action = null;
        Snackbar.make(rootView, "Validated", Snackbar.LENGTH_LONG).show();
        loginButton.setVisibility(View.GONE);
        loadingProgressBar.setVisibility(View.VISIBLE);
        action = LOGIN_ACTION;

        if(action != null){
            clickSubject.onNext(action);
        }
    }

    @Override
    public void onValidationFailed(List<ValidationError> errors) {
        for(ValidationError error : errors){
            View view = error.getView();
            String message = error.getCollatedErrorMessage(context);
            if(view instanceof AppCompatEditText){
                ((AppCompatEditText) view).setError(message);
            } else {
                Snackbar.make(view, message, Snackbar.LENGTH_LONG).show();
            }
        }
    }

    public String getUserName(){
        return usernameEditText.getText().toString();
    }
    public String getPassword(){
        return passwordEditText.getText().toString();
    }

    private void handleClick(int id){
        String action = null;
        switch (id){
            case R.id.login_button:
                validator.validate();
                break;
            case R.id.eye_imageview:
                togglePasswordVisibility();
        }
    }

    private void togglePasswordVisibility(){
        int color = 0;
        if(passwordIsVisible){
            passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance());
//            eyeImageView.setImageDrawable(context.getResources().getDrawable(R.drawable.eye_white));
            color = ContextCompat.getColor(context, R.color.dark_blue_button);
            ImageViewCompat.setImageTintList(eyeImageView, ColorStateList.valueOf(color));
        }else{
            passwordEditText.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
//            eyeImageView.setImageDrawable(context.getResources().getDrawable(R.drawable.eye_white));
            color = ContextCompat.getColor(context, R.color.dark_gray);
        }
        ImageViewCompat.setImageTintList(eyeImageView, ColorStateList.valueOf(color));
        passwordIsVisible = !passwordIsVisible;
        passwordEditText.setSelection(passwordEditText.getText().length());
    }

    private void showIncompleteCredentialsMessage() {
        Snackbar.make(loginButton, context.getText(R.string.incomplete_credentials_title), Snackbar.LENGTH_LONG).show();
    }

    public View getView(){
        return rootView;
    }
    public Observable<String> observeClicks(){
        return clickSubject;
    }
    public void openMainScreen(){
        context.startMainActivity();
    }

    public void openSearchTicketsScreen() {
        context.startSearchTicketsActivity();
    }

    public void showWrongCredentialsMessage() {
        loginButton.setVisibility(View.VISIBLE);
        loadingProgressBar.setVisibility(View.GONE);
        Snackbar.make(loginButton, context.getText(R.string.wrong_credentials_title), Snackbar.LENGTH_LONG).show();
    }

    public void setContext(LoginActivity context) {
        this.context = context;
    }
}

根据我的猜测，图书馆正试图在我的 Activity 上找到这些字段，但由于它们不存在，所以它抛出了这个错误。

有没有办法根据我正在处理的架构使用这个库？

Answer 1

使用 validator = new Validator(this) 代替 validator = new Validator(context);

Saripaar 验证库抛出未找到规则错误

Saripaar Validation library throws No rules found error

android

validation

mvp

butterknife

saripaar