import fr.ganfra.materialspinner.MaterialSpinner; //导入依赖的package包/类
public static boolean curpValido(EditText editTextCurp, EditText editTextNombre, EditText editTextApellidoPaterno,
                                 EditText editTextApellidoMaterno, EditText editTextFechaNacimiento,
                                 MaterialSpinner spinnerGenero, MaterialSpinner spinnerEstadoNacimiento) {
    if (editTextCurp.getText().length() == 18) {
        if (editTextNombre.getText().toString().length() != 0 &&
                editTextApellidoPaterno.getText().toString().length() != 0 &&
                editTextApellidoMaterno.getText().toString().length() != 0 &&
                editTextFechaNacimiento.getText().toString().length() != 0 &&
                spinnerGenero.getSelectedItemPosition() != 0 &&
                spinnerEstadoNacimiento.getSelectedItemPosition() != 0) {
            return true;
        } else {
            return false;
        }
    } else {
        ((TextInputLayout)editTextCurp.getParent().getParent()).setErrorEnabled(true);
        ((TextInputLayout)editTextCurp.getParent().getParent()).setError("CURP debe tener 18 caracteres");
        return false;
    }
}
 

import fr.ganfra.materialspinner.MaterialSpinner; //导入依赖的package包/类
public static boolean spinnerDatosCurpInvalido(MaterialSpinner spinner){
    if(spinner.getSelectedItemPosition() == 0){
        return true;
    }
    else{
        return false;
    }
}
 

import fr.ganfra.materialspinner.MaterialSpinner; //导入依赖的package包/类
/**
 * Función para mostrar un error en el spinner cuando la selección es nula.
 * @param spinner: Objeto tipo MaterialSpinner.
 * @return boolean.
 */
public static boolean spinnerSinSeleccion(MaterialSpinner spinner){
    if(spinner.getSelectedItemPosition() == 0){
        spinner.setError("Este campo es obligatorio");
        return true;
    }
    else{
        return false;
    }
}
 

import fr.ganfra.materialspinner.MaterialSpinner; //导入依赖的package包/类
public static ValidationStatus validate(MaterialSpinner spinner) {
    if (!(spinner.getTag(R.id.v_required) instanceof String) || !(spinner.getTag(R.id.error) instanceof String)) {
        return new ValidationStatus(true, null);
    }
    Boolean isRequired = Boolean.valueOf((String) spinner.getTag(R.id.v_required));
    if (!isRequired) {
        return new ValidationStatus(true, null);
    }
    int selectedItemPosition = spinner.getSelectedItemPosition();
    if(selectedItemPosition > 0) {
        return new ValidationStatus(true, null);
    }
    return new ValidationStatus(false, (String) spinner.getTag(R.id.error));
}
 

import fr.ganfra.materialspinner.MaterialSpinner; //导入依赖的package包/类
@Override
public List<View> getViewsFromJson(String stepName, Context context, JSONObject jsonObject, CommonListener listener) throws Exception {
    List<View> views = new ArrayList<>(1);
    MaterialSpinner spinner = (MaterialSpinner) LayoutInflater.from(context).inflate(R.layout.item_spinner, null);

    String hint = jsonObject.optString("hint");
    if (!TextUtils.isEmpty(hint)) {
        spinner.setHint(jsonObject.getString("hint"));
        spinner.setFloatingLabelText(jsonObject.getString("hint"));
    }

    spinner.setId(ViewUtil.generateViewId());

    spinner.setTag(R.id.key, jsonObject.getString("key"));
    spinner.setTag(R.id.type, jsonObject.getString("type"));

    JSONObject requiredObject = jsonObject.optJSONObject("v_required");
    if (requiredObject != null) {
        String requiredValue = requiredObject.getString("value");
        if (!TextUtils.isEmpty(requiredValue)) {
            spinner.setTag(R.id.v_required, requiredValue);
            spinner.setTag(R.id.error, requiredObject.optString("err"));
        }
    }

    String valueToSelect = "";
    int indexToSelect = -1;
    if (!TextUtils.isEmpty(jsonObject.optString("value"))) {
        valueToSelect = jsonObject.optString("value");
    }

    JSONArray valuesJson = jsonObject.optJSONArray("values");
    String[] values = null;
    if (valuesJson != null && valuesJson.length() > 0) {
        values = new String[valuesJson.length()];
        for (int i = 0; i < valuesJson.length(); i++) {
            values[i] = valuesJson.optString(i);
            if (valueToSelect.equals(values[i])) {
                indexToSelect = i;
            }
        }
    }

    if (values != null) {
        spinner.setAdapter(new ArrayAdapter<>(context, android.R.layout.simple_list_item_1, values));
        spinner.setSelection(indexToSelect + 1, true);
        spinner.setOnItemSelectedListener(listener);
    }
    views.add(spinner);
    return views;
}