Is it possible to setText of TextView in MainActivity.java using string.xml?

Question

In my code I have the xml string that I would like to replace in the java file with another string from the string.xml, if the TextView is clicked. Can I input a string from the string.xml file into the mainactity.java file?

//activity_main.xml
android:id="@+id/description"
android:text="description of activity"

//MainActivity.java
TextView moreInfo = (TextView) findViewById(R.id.description);
    moreInfo.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            moreInfo.setText(@string/description_activity_main);)
        }
    });

Answer 1

Yes, you can. You're just doing it wrong. Here's what you should do:

moreInfo.setText(getString(R.string.description_activity_main));

Answer 2

XML file saved at res/values/strings.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello!</string>
</resources>

This application code retrieves a string:

String string = getString(R.string.hello);

Answer 3

You can use your string from string.xml by using getResources() which can be used after importing R file as,

import com.example.R; // com.example should be replaced your package path

Then change as the following,

moreInfo.setText(getResources().getString(R.string.description_activity_main));

Answer 4

使用getString()函数

getString(R.string.sting_name)