Android Open Source - ExpertAndroid Field

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License

The source code is released under:

MIT License

Java Source Code

package com.iuriio.demos.expertandroid.ch6forms;
//  w  w w  . j a  va2 s  . c o  m
import android.widget.TextView;

import java.util.ArrayList;

/**
 * Created by iuriio on 10/24/13.
 */
public class Field implements IValidator {
    private TextView control;
    private boolean required = true;
    private ArrayList<IValueValidator> valueValidatorList = new ArrayList<IValueValidator>();

    public Field(TextView tv) {
        this(tv, true);
    }

    public Field(TextView tv, boolean required) {
        this.control = tv;
        this.required = required;
    }

    public void addValidator(IValueValidator validator) {
        this.valueValidatorList.add(validator);
    }

    @Override
    public boolean validate() {
        String value = this.getValue();
        if (StringUtils.invalidString(value)) {
            if (this.required) {
                this.warnRequiredField();
                return false;
            }
        }

        for (IValueValidator validator : this.valueValidatorList) {
            boolean result = validator.validateValue(this.getValue());
            if (result) {
                continue;
            }

            String errorMessage = validator.getErrorMessage();
            this.setErrorMessage(errorMessage);
            return false;
        }

        return true;
    }

    private void warnRequiredField() {
        this.setErrorMessage("This is a required field");
    }

    public void setErrorMessage(String message) {
        this.control.setError(message);
    }

    public String getValue() {
        return this.control.getText().toString();
    }
}

Java Source Code List

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