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      1 /*
      2  * Copyright (C) 2016 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 package com.example.android.wearable.wear.wearnotifications;
     17 
     18 import android.widget.ImageView;
     19 
     20 import android.support.v4.app.NotificationCompat;
     21 import android.support.wearable.view.WearableRecyclerView;
     22 import android.util.Log;
     23 import android.view.LayoutInflater;
     24 import android.view.View;
     25 import android.view.ViewGroup;
     26 import android.widget.TextView;
     27 
     28 /**
     29  * Provides a binding from {@link NotificationCompat.Style} data set to views displayed within the
     30  * {@link WearableRecyclerView}.
     31  */
     32 public class CustomRecyclerAdapter extends
     33         WearableRecyclerView.Adapter<CustomRecyclerAdapter.ViewHolder> {
     34 
     35     private static final String TAG = "CustomRecyclerAdapter";
     36 
     37     private String[] mDataSet;
     38 
     39     // Custom Controller used to instruct main activity to update {@link Notification} and/or
     40     // UI for item selected.
     41     private Controller mController;
     42 
     43     /**
     44      * Provides reference to the views for each data item. We don't maintain a reference to the
     45      * {@link ImageView} (representing the icon), because it does not change for each item. We
     46      * wanted to keep the sample simple, but you could add extra code to customize each icon.
     47      */
     48     public static class ViewHolder extends WearableRecyclerView.ViewHolder {
     49 
     50         private final TextView mTextView;
     51 
     52         public ViewHolder(View view) {
     53             super(view);
     54             mTextView = (TextView) view.findViewById(R.id.textView);
     55         }
     56 
     57         @Override
     58         public String toString() { return (String) mTextView.getText(); }
     59     }
     60 
     61     public CustomRecyclerAdapter(String[] dataSet, Controller controller) {
     62         mDataSet = dataSet;
     63         mController = controller;
     64     }
     65 
     66     @Override
     67     public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
     68         View view = LayoutInflater.from(viewGroup.getContext())
     69                 .inflate(R.layout.recycler_row_item, viewGroup, false);
     70 
     71         return new ViewHolder(view);
     72     }
     73 
     74     @Override
     75     public void onBindViewHolder(ViewHolder viewHolder, final int position) {
     76         Log.d(TAG, "Element " + position + " set.");
     77 
     78         viewHolder.mTextView.setOnClickListener(new View.OnClickListener() {
     79 
     80             @Override
     81             public void onClick(View view) {
     82                 mController.itemSelected(mDataSet[position]);
     83             }
     84         });
     85 
     86         // Replaces content of view with correct element from data set
     87         viewHolder.mTextView.setText(mDataSet[position]);
     88     }
     89 
     90     // Return the size of your dataset (invoked by the layout manager)
     91     @Override
     92     public int getItemCount() {
     93         return mDataSet.length;
     94     }
     95 }