Codenameone Codename One-验证程序显示的带有有效输入的错误消息(更新)
——更新了问题并提供了更多详细信息-- 我正在更新此问题以添加更多详细信息。很抱歉在这个问题中报告了多个bug,但是我在下面的代码中遇到了多个问题 首先,这是我测试TextModeLayout的(新)代码,很容易完整复制和测试(我更改了这个问题的前一个版本的代码): 我生成了apk和ipa,并在我手中的真实设备上测试了它们(不是在设备场中)。为了更好地理解这些行为,我录制了两个视频 Android 7:正如您在视频中看到的,无论我提供了有效的输入,都会始终显示只显示姓名(但不显示姓氏)的错误消息。此外,当我用java.lang.NullPointerException点击生日选择器时,应用程序崩溃。完整日志如下: iPhoneX(iOS 11.2.2):正如您在视频中看到的,只有当输入无效时(如我所料),字段右侧的红色十字才会正确显示,但错误消息文本也始终显示为有效输入。选择性别也有问题,因为如果我点击性别然后按OK(不滚动选项),第一个选项(即“男性”)不会被选中(在我尝试过两次的视频中) 因此,同样的代码在Android上会产生崩溃,但在iOS上不会。此外,错误文本在两个操作系统上显示不正确,但行为不同 在iOS上还有一个奇怪的错误:如果你阻塞屏幕然后解锁(尝试使用iPhone X的右侧按钮,然后使用FaceID解锁),输入字段会重复,如下图所示:。这个bug很容易被复制 谢谢你的支持 ——老问题--- 请注意以下屏幕截图(指的是相同的代码):在Android上,Codenameone Codename One-验证程序显示的带有有效输入的错误消息(更新),codenameone,Codenameone,——更新了问题并提供了更多详细信息-- 我正在更新此问题以添加更多详细信息。很抱歉在这个问题中报告了多个bug,但是我在下面的代码中遇到了多个问题 首先,这是我测试TextModeLayout的(新)代码,很容易完整复制和测试(我更改了这个问题的前一个版本的代码): 我生成了apk和ipa,并在我手中的真实设备上测试了它们(不是在设备场中)。为了更好地理解这些行为,我录制了两个视频 Android 7:正如您在视频中看到的,无论我提供了有效的输入,都会始终显示只显示姓名(但不显示姓氏)的错误消息
TextComponent name
的errorMessage
以有效输入显示(而TextComponent name
的errorMessage
未按预期以有效输入显示);在iPhoneX上,TextComponent name
和TextComponent name
的错误消息以有效输入显示。为什么?怎么了
当然,预期的行为是没有显示带有有效输入的errorMessage
在截图下面,我复制了表单的完整代码
真实Android 7的屏幕截图(在我手中):
真实iPhoneX iOS11的屏幕截图(在设备场中):
完整代码:
import com.codename1.io.Log;
import com.codename1.ui.Container;
import com.codename1.ui.Display;
import com.codename1.ui.Form;
import com.codename1.ui.PickerComponent;
import com.codename1.ui.TextComponent;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.layouts.TextModeLayout;
import com.codename1.ui.validation.Constraint;
import com.codename1.ui.validation.LengthConstraint;
import com.codename1.ui.validation.Validator;
import static com.myproject.registration.Registrazione.getArrowBack;
import java.util.Date;
public class Registry extends Form {
public Registry() {
super("Anagrafica", BoxLayout.y());
}
/**
* Creates and shows the Registry Form
*
* @param backForm the previous Form to show tapping the back arrow
*/
public void show(Form backForm) {
// Back command (linked to the left arrow in the toolbar and to back hardware button)
setBackCommand(getToolbar().addCommandToLeftBar("", getArrowBack(), (e) -> {
Log.p("Invoked setBackCommand to go to the previous form");
Display.getInstance().callSerially(() -> {
backForm.showBack();
Log.p("Previous form shown correctly");
});
}
));
// More info: https://www.codenameone.com/blog/pixel-perfect-text-input-part-2.html
TextModeLayout textModeLayout = new TextModeLayout(4, 1);
Container inputPersonData = new Container(textModeLayout);
TextComponent name = new TextComponent().label("Nome").errorMessage("Inserisci il tuo nome");
TextComponent surname = new TextComponent().label("Cognome").errorMessage("Inserisci il tuo cognome");
PickerComponent gender = PickerComponent.createStrings("Maschio", "Femmina", "altro").label("Genere");
pickerComponentSetUnselectedText(gender, "Seleziona genere");
PickerComponent date = PickerComponent.createDate(new Date()).label("Data di nascita").errorMessage("Hai almeno 13 anni?");
pickerComponentSetUnselectedText(date, "Seleziona data");
Validator validator = new Validator();
// to make better
// Codename One - Validate only one input at a time
// https://stackoverflow.com/questions/50249453/codename-one-validate-only-one-input-at-a-time
validator.setShowErrorMessageForFocusedComponent(false);
validator.addConstraint(name, new LengthConstraint(2));
validator.addConstraint(surname, new LengthConstraint(2));
validator.addConstraint(date, new Constraint() {
@Override
public boolean isValid(Object value) {
boolean res = false;
// to do
// Codename One - addConstraint to PickerComponent date
// https://stackoverflow.com/questions/50249148/codename-one-addconstraint-to-pickercomponent-date
return res;
}
@Override
public String getDefaultFailMessage() {
return "You must be at least 13 years old";
}
});
inputPersonData.add(name);
inputPersonData.add(surname);
inputPersonData.add(gender);
inputPersonData.add(date);
add(inputPersonData);
setEditOnShow(name.getField());
super.show();
Log.p("Registry Form shown correctly");
}
/**
* Set a custom text for an unselected PickerComponent placed in a
* TextModeLayout
*
* @param picker
* @param text
*/
private void pickerComponentSetUnselectedText(PickerComponent picker, String text) {
if (picker.isOnTopMode()) {
picker.getPicker().setText(text);
} else {
picker.getPicker().setText("");
}
picker.getPicker().setUIID("TextHint");
picker.getPicker().addActionListener(l -> {
l.getComponent().setUIID("TextField");
});
}
}
您不应将其与验证器一起使用:
TextComponent name = new TextComponent().labelAndHint("Name").errorMessage("Insert your name");
由于您正在有效地将错误消息硬编码到组件中,因此它将被设置为null。您应该将消息放在验证器中:
validator.addConstraint(name, new LengthConstraint(2, "Insert your name"));
谢谢你,谢。关于其他问题,我找到了以下解决方案:
PickerComponent.createDate(null).label(“生日”)代码>,因为“null”参数导致报告的Android崩溃(请参阅问题中报告的日志)。如果我没记错的话,您在Facebook克隆的课程中使用了createDate(null)
:只有在不使用验证器的情况下才可以(这个问题只影响Android,而代码在iOS上工作正常)
import com.codename1.io.Log;
import com.codename1.ui.Button;
import static com.codename1.ui.CN.addNetworkErrorListener;
import static com.codename1.ui.CN.getCurrentForm;
import static com.codename1.ui.CN.updateNetworkThreadCount;
import com.codename1.ui.Container;
import com.codename1.ui.Dialog;
import com.codename1.ui.Form;
import com.codename1.ui.PickerComponent;
import com.codename1.ui.TextComponent;
import com.codename1.ui.Toolbar;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.layouts.TextModeLayout;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.ui.validation.Constraint;
import com.codename1.ui.validation.LengthConstraint;
import com.codename1.ui.validation.Validator;
import java.util.Date;
import java.util.Calendar;
public class MainClass {
private Form current;
private Resources theme;
public void init(Object context) {
// use two network threads instead of one
updateNetworkThreadCount(2);
theme = UIManager.initFirstTheme("/theme");
// Enable Toolbar on all Forms by default
Toolbar.setGlobalToolbar(true);
// Pro only feature
Log.bindCrashProtection(true);
addNetworkErrorListener(err -> {
// prevent the event from propagating
err.consume();
if (err.getError() != null) {
Log.e(err.getError());
}
Log.sendLogAsync();
Dialog.show("Connection Error", "There was a networking error in the connection to " + err.getConnectionRequest().getUrl(), "OK", null);
});
}
public void start() {
if (current != null) {
current.show();
return;
}
// More info:
// https://www.codenameone.com/blog/pixel-perfect-text-input-part-2.html
// https://stackoverflow.com/questions/50250572/codename-one-errormessages-by-the-validator-shown-with-valid-inputs-update
Form hi = new Form("Anagrafica", BoxLayout.y());
TextModeLayout textModeLayout = new TextModeLayout(4, 1);
Container inputPersonData = new Container(textModeLayout);
TextComponent name = new TextComponent().labelAndHint("Name");
TextComponent surname = new TextComponent().labelAndHint("Surname");
PickerComponent gender = PickerComponent.createStrings("Male", "Female", "Other", "Not specified").label("Gender");
gender.getPicker().setSelectedString("Not specified");
PickerComponent date = PickerComponent.createDate(new Date()).label("Birthday");
Validator validator = new Validator();
validator.setShowErrorMessageForFocusedComponent(true);
validator.addConstraint(name, new LengthConstraint(2, "Insert your name"));
validator.addConstraint(surname, new LengthConstraint(2, "Insert your surname"));
validator.addConstraint(date, new Constraint() {
@Override
public boolean isValid(Object value) {
boolean res = false;
if (value != null && value instanceof Date) {
Calendar birthday = Calendar.getInstance();
birthday.setTime((Date) value);
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
calendar.add(Calendar.YEAR, -13);
if (birthday.before(calendar)) {
res = true;
}
}
return res;
}
@Override
public String getDefaultFailMessage() {
return "Are you at least 13 years old?";
}
});
inputPersonData.add(name);
inputPersonData.add(surname);
inputPersonData.add(gender);
inputPersonData.add(date);
hi.add(inputPersonData);
Button button = new Button("Send");
hi.add(button);
validator.addSubmitButtons(button);
hi.setEditOnShow(name.getField());
hi.show();
}
public void stop() {
current = getCurrentForm();
if (current instanceof Dialog) {
((Dialog) current).dispose();
current = getCurrentForm();
}
}
public void destroy() {
}
}
这是否只发生在设备上,而不是模拟器上?它会随着焦点的变化而更新吗?离开球场?不更新日期是一个缺陷,明天将修复。我将等待明天的日期修复,之后我将更新此问题的更多细节(可能还包括视频)。谢谢你,谢!我刚刚用更多的细节更新了这个问题,我添加了一个新的代码,可以轻松地用于重现这些问题。我还添加了两个视频。我给出了答案,但我可能错过了问题的某些方面,因为它变得很长,很难通读。我添加了一个答案来完成你的答案。谢谢Shai。我们刚刚为picker添加了新的轻量级模式,希望这会使它更合理。至少在模拟器上看起来更好…谢谢,我希望新的轻量级模式能解决一些问题。。。然而:
import com.codename1.io.Log;
import com.codename1.ui.Button;
import static com.codename1.ui.CN.addNetworkErrorListener;
import static com.codename1.ui.CN.getCurrentForm;
import static com.codename1.ui.CN.updateNetworkThreadCount;
import com.codename1.ui.Container;
import com.codename1.ui.Dialog;
import com.codename1.ui.Form;
import com.codename1.ui.PickerComponent;
import com.codename1.ui.TextComponent;
import com.codename1.ui.Toolbar;
import com.codename1.ui.layouts.BoxLayout;
import com.codename1.ui.layouts.TextModeLayout;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.ui.validation.Constraint;
import com.codename1.ui.validation.LengthConstraint;
import com.codename1.ui.validation.Validator;
import java.util.Date;
import java.util.Calendar;
public class MainClass {
private Form current;
private Resources theme;
public void init(Object context) {
// use two network threads instead of one
updateNetworkThreadCount(2);
theme = UIManager.initFirstTheme("/theme");
// Enable Toolbar on all Forms by default
Toolbar.setGlobalToolbar(true);
// Pro only feature
Log.bindCrashProtection(true);
addNetworkErrorListener(err -> {
// prevent the event from propagating
err.consume();
if (err.getError() != null) {
Log.e(err.getError());
}
Log.sendLogAsync();
Dialog.show("Connection Error", "There was a networking error in the connection to " + err.getConnectionRequest().getUrl(), "OK", null);
});
}
public void start() {
if (current != null) {
current.show();
return;
}
// More info:
// https://www.codenameone.com/blog/pixel-perfect-text-input-part-2.html
// https://stackoverflow.com/questions/50250572/codename-one-errormessages-by-the-validator-shown-with-valid-inputs-update
Form hi = new Form("Anagrafica", BoxLayout.y());
TextModeLayout textModeLayout = new TextModeLayout(4, 1);
Container inputPersonData = new Container(textModeLayout);
TextComponent name = new TextComponent().labelAndHint("Name");
TextComponent surname = new TextComponent().labelAndHint("Surname");
PickerComponent gender = PickerComponent.createStrings("Male", "Female", "Other", "Not specified").label("Gender");
gender.getPicker().setSelectedString("Not specified");
PickerComponent date = PickerComponent.createDate(new Date()).label("Birthday");
Validator validator = new Validator();
validator.setShowErrorMessageForFocusedComponent(true);
validator.addConstraint(name, new LengthConstraint(2, "Insert your name"));
validator.addConstraint(surname, new LengthConstraint(2, "Insert your surname"));
validator.addConstraint(date, new Constraint() {
@Override
public boolean isValid(Object value) {
boolean res = false;
if (value != null && value instanceof Date) {
Calendar birthday = Calendar.getInstance();
birthday.setTime((Date) value);
Calendar calendar = Calendar.getInstance();
calendar.setTime(new Date());
calendar.add(Calendar.YEAR, -13);
if (birthday.before(calendar)) {
res = true;
}
}
return res;
}
@Override
public String getDefaultFailMessage() {
return "Are you at least 13 years old?";
}
});
inputPersonData.add(name);
inputPersonData.add(surname);
inputPersonData.add(gender);
inputPersonData.add(date);
hi.add(inputPersonData);
Button button = new Button("Send");
hi.add(button);
validator.addSubmitButtons(button);
hi.setEditOnShow(name.getField());
hi.show();
}
public void stop() {
current = getCurrentForm();
if (current instanceof Dialog) {
((Dialog) current).dispose();
current = getCurrentForm();
}
}
public void destroy() {
}
}