rxbinding/src/main/java/com/ogaclejapan/rx/binding/RxActions.java
public static <T extends AbsListView> RxAction<T, String> setFilterText() {
    return new RxAction<T, String>() {
      @Override
      public void call(T view, String filterText) {
        if (TextUtils.isEmpty(filterText)) {
          view.clearTextFilter();
        } else {
          view.setFilterText(filterText);
        }
      }
    };
  }
public static <T extends AbsListView> RxAction<T, String> setFilterText() {
    return new RxAction<T, String>() {
      @Override
      public void call(T view, String filterText) {
        if (TextUtils.isEmpty(filterText)) {
          view.clearTextFilter();
        } else {
          view.setFilterText(filterText);
        }
      }
    };
  }
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