Concatenate string and integer in string.xml

Question

I am trying to concatenate string and integer in string.xml like below...

<integer name="min_length">10</integer>
<string name="error">Enter minimum @integer/min_length chars</string>

So that the value of getString(R.string.error) could be "Enter minimum 10 chars". But getting error, please help!

Answer 1

From the link Shree posted

XML

<string name="error">Enter minimum %1$d chars</string>

Java

int min_length = 10;
Resources res = getResources();
String text = String.format(res.getString(R.string.error), min_length);

Answer 2

A quick solution for your question!

Write your Integer and String like

<integer name="min_length">10</integer>
<string name="error">Enter minimum min_length chars</string>

And Concat them like

String string = 
getString(R.string.error).replace("min_length",
 String.valueOf(getResources().getInteger(R.integer.min_length)))

In Android you can't concatenate Strings inside xml without any logical codes like you have shown

See more at formatting and styling String resources

Answer 3

You can not concatenate strings or integer and strings in xml. You can do refer to another string or integer in one string or integer tag respectively in xml , but only one. Like:

 <integer name="min_length">10</integer>

<integer name="min">@integer/min_length</integer>

You can refer integer inside integer and string inside string .

If you try to do what you mentioned above android studio , you will be thrown away with error.

Answer 4

You can do this now using DataBinding.

<TextView android:text='@{"Enter minimum " + @string/min_length)}' />

Read more about DataBinding here