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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.support.v7.widget.RecyclerView;
     20 import android.view.LayoutInflater;
     21 import android.view.View;
     22 import android.view.ViewGroup;
     23 import android.widget.TextView;
     24 import com.android.car.settings.R;
     25 
     26 /**
     27  * Contains logic for a line item represents text only view of a title and a description.
     28  */
     29 public abstract class TextLineItem extends TypedPagedListAdapter.LineItem<TextLineItem.ViewHolder> {
     30     private final CharSequence mTitle;
     31 
     32     private View.OnClickListener mOnClickListener = (v) -> onClick();
     33 
     34     public TextLineItem(CharSequence title) {
     35         mTitle = title;
     36     }
     37 
     38     @Override
     39     public int getType() {
     40         return TEXT_TYPE;
     41     }
     42 
     43     @Override
     44     public void bindViewHolder(ViewHolder viewHolder) {
     45         viewHolder.titleView.setText(mTitle);
     46         viewHolder.descView.setText(getDesc());
     47         viewHolder.itemView.setOnClickListener(mOnClickListener);
     48         viewHolder.itemView.setEnabled(isEnabled());
     49     }
     50 
     51     static class ViewHolder extends RecyclerView.ViewHolder {
     52         final TextView titleView;
     53         final TextView descView;
     54 
     55         public ViewHolder(View view) {
     56             super(view);
     57             titleView = (TextView) view.findViewById(R.id.title);
     58             descView = (TextView) view.findViewById(R.id.desc);
     59         }
     60     }
     61 
     62     public static RecyclerView.ViewHolder createViewHolder(ViewGroup parent) {
     63         View v = LayoutInflater.from(parent.getContext())
     64                 .inflate(R.layout.text_line_item, parent, false);
     65         return new ViewHolder(v);
     66     }
     67 
     68     public abstract void onClick();
     69 
     70     public abstract boolean isEnabled();
     71 }
     72