Use string from MainActivity.java in activity_main.xml

Question

I have a string defined in MainActivity.java:

public String counter1 = String.valueOf(e.getCount());

I would like to use this string in activity_main.xml as:

android:text="@string/counter1"

As you can tell I am very new to this so basic steps would be appreciated.

Thanks

Answer 1

Short answer: you cannot. The resources you set in your xml layouts must be statically defined in resources files, like.-

<string name="counter1">COUNTER VALUE</string>

To dynamically define new strings, you must set them programmatically.-

TextView textView = (TextView) findViewById(R.id.textViewId);
textView.setText(counter1);

Answer 2

What do you want to do if you could get this to work? If you want to set text dynamically, you can use setText :

yourTextView.setText(counter1);

Answer 3

If you want to set something programmatically which you can... you should use

txtview.setText(yourString);

if you want to set a String in XML then you either set it in the XML like you did

  android:text="Exercise Name"

or using strings which then you can use programmatically as well in strings:

   <string name="Delete">Delete</string>

in code you can call it with R.string.Delete or getString(R.string.app_name);

of course you can also set from strings in XML with @string...

by the sound of what you are trying to do, you want the TextView to change while program is running so the first option would suit you well

Answer 4

you can not,if you want to acheive this kind of solution: create string in strings.xml

<string name="counter1">value of counter</string>

and if you want to set the text of counter dynamically then in you activity:

TextView tView = (TextView) findViewById(R.id.textViewId);
tView.setText(counter1);

you should follow this,because all static strings shoul always be defined in strings.xml