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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.car.settings.common;
     18 
     19 import android.content.Context;
     20 import android.support.v7.widget.RecyclerView;
     21 import android.view.LayoutInflater;
     22 import android.view.View;
     23 import android.view.ViewGroup;
     24 import android.widget.AdapterView;
     25 import android.widget.ArrayAdapter;
     26 import android.widget.Spinner;
     27 import android.widget.TextView;
     28 
     29 import com.android.car.settings.R;
     30 
     31 import java.util.List;
     32 
     33 /**
     34  * Contains logic for a line item represents a spinner.
     35  */
     36 public class SpinnerLineItem<T> extends TypedPagedListAdapter.LineItem<SpinnerLineItem.ViewHolder> {
     37     private final ArrayAdapter<T> mArrayAdapter;
     38     private final AdapterView.OnItemSelectedListener mOnItemSelectedListener;
     39     private final CharSequence mTitle;
     40     private final int mSelectedPosition;
     41 
     42     public SpinnerLineItem(
     43             Context context,
     44             AdapterView.OnItemSelectedListener listener,
     45             List<?> items,
     46             CharSequence title,
     47             int selectedPosition) {
     48         mArrayAdapter = new ArrayAdapter(context, R.layout.spinner, items);
     49         mArrayAdapter.setDropDownViewResource(R.layout.spinner_drop_down);
     50         mOnItemSelectedListener = listener;
     51         mTitle = title;
     52         mSelectedPosition = selectedPosition;
     53     }
     54 
     55     @Override
     56     public int getType() {
     57         return SPINNER_TYPE;
     58     }
     59 
     60     @Override
     61     public void bindViewHolder(ViewHolder viewHolder) {
     62         viewHolder.spinner.setAdapter(mArrayAdapter);
     63         viewHolder.spinner.setSelection(mSelectedPosition);
     64         viewHolder.spinner.setOnItemSelectedListener(mOnItemSelectedListener);
     65         viewHolder.titleView.setText(mTitle);
     66     }
     67 
     68     public static class ViewHolder extends RecyclerView.ViewHolder {
     69         public final Spinner spinner;
     70         public final TextView titleView;
     71 
     72         public ViewHolder(View view) {
     73             super(view);
     74             spinner = view.findViewById(R.id.spinner);
     75             titleView = view.findViewById(R.id.title);
     76         }
     77     }
     78 
     79     public static RecyclerView.ViewHolder createViewHolder(ViewGroup parent) {
     80         return new ViewHolder(LayoutInflater.from(parent.getContext())
     81                 .inflate(R.layout.spinner_line_item, parent, false));
     82     }
     83 
     84     public T getItem(int position) {
     85         return mArrayAdapter.getItem(position);
     86     }
     87 
     88     @Override
     89     public CharSequence getDesc() {
     90         return null;
     91     }
     92 
     93     @Override
     94     public boolean isExpandable() {
     95         return false;
     96     }
     97 
     98     @Override
     99     public boolean isClickable() {
    100         return true;
    101     }
    102 }
    103