Home | History | Annotate | Download | only in widget
      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
      5  * in compliance with the License. You may obtain a copy of the License at
      6  *
      7  * http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the License
     10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
     11  * or implied. See the License for the specific language governing permissions and limitations under
     12  * the License.
     13  */
     14 package androidx.leanback.widget;
     15 
     16 /**
     17  * A {@link PresenterSelector} that always returns the same {@link Presenter}.
     18  * Useful for rows of items of the same type that are all rendered the same way.
     19  */
     20 public final class SinglePresenterSelector extends PresenterSelector {
     21 
     22     private final Presenter mPresenter;
     23 
     24     /**
     25      * @param presenter The Presenter to return for every item.
     26      */
     27     public SinglePresenterSelector(Presenter presenter) {
     28         mPresenter = presenter;
     29     }
     30 
     31     @Override
     32     public Presenter getPresenter(Object item) {
     33         return mPresenter;
     34     }
     35 
     36     @Override
     37     public Presenter[] getPresenters() {
     38         return new Presenter[]{mPresenter};
     39     }
     40 }
     41