Android PreferenceScreen title in two lines

By default the title is set to single line. You need to extend Preference and get title textview and set single line to false. Use this class instead of the regular PreferenceScreen:

public class TwoLinePreference extends Preference {

  public TwoLinePreference(Context ctx, AttributeSet attrs, int defStyle) {
    super(ctx, attrs, defStyle);
  }

  public TwoLinePreference(Context ctx, AttributeSet attrs) {
    super(ctx, attrs);
  }

  public TwoLinePreference(Context ctx) {
    super(ctx);
  }

 @Override
 protected void onBindView(View view) {
    super.onBindView(view);

    TextView textView = (TextView) view.findViewById(android.R.id.title);
    if (textView != null) {
        textView.setSingleLine(false);
      }
  }
}

Use the method setSingleLineTitle(false)

This was added in API 26, so you should be able to use the support library version for older devices