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I am trying to use textMapper to change the text shown in NumberPicker.
I found the TextMapper class, but I don't know how to use it.
Please tell me how to use textMapper
Its basically a method that takes a String argument and returns a String value that transforms the input.
eg:
String modifyText(String s){
return "Value " +s; // Appends "Value" to the String s
}
Can be set to the textMapper property to show the values in the picker as "Value ..." instead of just '...'
Related
I have a constants file with text values, for example:
const String loginIntro1 = "Login to account";
const String loginButton = "Login";
And I also have a Map containing similar info, for example:
{"loginIntro1":"Login to account","loginButton":"Login"}
The idea is that the Map (derived from a JSON file) takes precedence, but if the value doesn't exist, the constants value is used instead.
In my text widget, I want to grab the text by a method call, such as:
getText('loginIntro1');
Is this even possible? How can I get the value from the constants file with a String, rather than a direct reference to the variable? Perhaps I'm missing a much simpler way of achieving this!
i am new in dart and just want to know how to take integer input from user in dart with null safety. i found out a way to take number input from dart which is:
String? chossenNumber = stdin. readLineSync();
if(chossenNumber !=null)
{
int number = int.parse(chossenNumber);
}
but i am unable to use number variable outside of the scope. Please tell me a way to solve this issue.
You can define the variable at the top of the class and initialize it here so you will be able to use it everywhere in the class
The solution of it very simple just take input of number as String i.e
String? chossenNumber = stdin. readLineSync();
and when you want to use this variable parse it to the 'int' i.e
if(int.parse(chossenNumber) <100)
{
print("Your Statement");
}
I have created a multifield custom widget having two fields with names ./urlLink and ./urlText.
Now i m trying to fetch the values from widget into the component's jsp with following code
String property = properties.get("./urlLink",String[].class);
for(String value: property ) {
out.print(value);
}
out.print(property);
But i am not able to get its value instead i m getting error.
If you're getting a property and it contains a string value, you need to use the method getString() - that way when you have the property, you can set the string to the value by doing something like this:
Property property = properties.get("./urlLink",String.class);
String value = property.getString();
Just a side note, if your return is supposed to be a string array, your type that you're putting the values in should be a string array.
String[] value
Check out the documentation on day.com for Properties and getting the values inside them.
Looks like a typo: you don't prefix a property name with .\ when accessing it.
My guess is you got a NullPointerException, right? That's because there's no ./urlLink property in the value map (properties). You should check against that anyway (so that it's not thrown on a fresh page with no content).
If that doesn't help -- double check that you have the properties in the content (call your page with .xml or .infinite.json extensions, and then double check if you can read them as plain strings (you should be able to -- CRX does some magic, smart type conversions).
It's good to register custom xtype as :
// registering the custom widget with the name dualfield
CQ.Ext.reg("dualfield", CQ.Ext.form.DualField);
Then u can easily fetch the value as :
String[] data = properties.get("multi",String[].class);
Here multi is the name of widget having multifield as xtype
I wish to use a customized string for use in an OnExceptionAspect.
Say I created a string named "message" and then in:
Method A: message = "Could not record your personal data"
Method B: message = "Could not record your date of birth" etc.
Then, in the OnExceptionAspect, the string would be obtained from the method that threw the exception and include it in the resultant messagebox or whatever, for example:
If(MethodThatThrewException) has string "message";
exceptionMessage = (MethodThatThrewExption).message;
Is the above possible or is there another way of doing this.
I decided it's easier to pass the variable as a parameter to the aspect eg...
[ExceptionDialog(null, "This is my custom message")]
I passed a variable from first.m to seViewController.m. I'm able to print that variable using NSLog(#variable) but I'm unable to use textField.text=variable. How to print that variable in a textbox?
-(void)insert:variable
{
NSLog(#"%#",variable);
textfield.text=variable;
}
In my text box value is not coming...
You can try
textfield.text=[variable description]; // or -localizedDescription
That's what is used when you print your object using NSLog.
However it may be more appropriate to get some textual attributes from your object and then assign them to textField. That will depend, of course, of what type your variable is, what info it contains and how you want to print it...
Try This code:
-(void)insert:(NSString*) variable
{
NSLog(#"%#",variable);
textfield.text=[NSString stringWithFormat:#"%#",variable];
}
Try with below
-(void)insert:(NSString*) variable
{
NSLog(#"%#",variable);
textfield.text=variable;
}
You don't indicate variable's type in your code snippet (is that valid Objective-C syntax?). If it's an NSString, your code should work as is. If it's any object type (including NSString), you can use the description method to get a descriptive string.
If it's a C primitive (int, float, etc.) you will have to create an NSString (possibly using [NSString stringWithFormat].