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androidclasspreferenceactivity

"Cannot resolve method 'addPreferencesFromResource(int)'"

This is not deprecation-related. I get this error wherever I put the line addPreferencesFromResource(R.xml.preferences);, just after onCreate or in a seperate method called after.

I did include import android.preference.PreferenceActivity; but it shows up greyed as unused.

I'm using the latest Android Studio if it counts for something.

Solution

  • The compilation error occurs because you're extending Activity and not PreferenceActivity.

    So replace

    public class MainActivity extends Activity {

    with 

    public class MainActivity extends PreferenceActivity {

    and you should be good to go.