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How to show integer from activity in XML?

I am using XML output in my application. So the main activity just tells android to show the XML layout of the main one.

But what if I have an integer opcode in a variable, and I want that integer variable to appear on the display as well?

How do I PUSH an integer variable in XML ??? From a basic XML reference to other strings in XML, it's easy - @ string / app_name ... but how can I use an integer variable from an activity?

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2 answers


Presumably you are displaying text in TextView

.

You can display text either from a string resource (defined in XML and called R.string.*

as you mention) or from String

runtime.

You cannot change XML resources at runtime; you use them for fixed values ​​like labels or other UI text. Thus, there is no way to "push" a value for XML.

But you can happily do something like this at runtime by dynamically updating your interface:



int userAge = calculateUsersAge();
TextView age = (TextView) findViewById(R.id.age_field);
age.setText(userAge +" years old");

Or better if there are no hardcoded values ​​in the code:

age.setText(getString(R.string.years_old, userAge));

Where years_old

is the text "% d years" in yours res/values/strings.xml

and "% d Jahre alt" in yours res/values-de/strings.xml

, etc.

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int app_Integer = 10;

Converting from int to String to set in your text form ::



String app_String = "" +app_Integer;
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