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.example.android.support.wear.app;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 import android.view.ViewGroup;
22 import android.widget.TextView;
23 
24 import androidx.recyclerview.widget.RecyclerView;
25 import androidx.wear.widget.WearableLinearLayoutManager;
26 import androidx.wear.widget.WearableRecyclerView;
27 
28 import com.example.android.support.wear.R;
29 
30 /**
31  * Main activity for the WearableRecyclerView demo.
32  */
33 public class SimpleWearableRecyclerViewDemo extends Activity {
34 
35     @Override
onCreate(Bundle savedInstanceState)36     protected void onCreate(Bundle savedInstanceState) {
37         super.onCreate(savedInstanceState);
38         setContentView(R.layout.wrv_demo);
39 
40         WearableRecyclerView wrv = findViewById(R.id.wrv_container);
41 
42         wrv.setLayoutManager(new WearableLinearLayoutManager(this));
43         wrv.setAdapter(new DemoAdapter());
44         wrv.setCircularScrollingGestureEnabled(true);
45         wrv.setEdgeItemsCenteringEnabled(true);
46     }
47 
48     private static class ViewHolder extends RecyclerView.ViewHolder {
49         TextView mView;
ViewHolder(TextView itemView)50         ViewHolder(TextView itemView) {
51             super(itemView);
52             mView = itemView;
53         }
54     }
55 
56     private static class DemoAdapter extends WearableRecyclerView.Adapter<ViewHolder> {
57         private static final int ITEM_COUNT = 100;
58 
59         @Override
onCreateViewHolder(ViewGroup parent, int viewType)60         public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
61             TextView view = new TextView(parent.getContext());
62             return new ViewHolder(view);
63         }
64 
65         @Override
onBindViewHolder(ViewHolder holder, int position)66         public void onBindViewHolder(ViewHolder holder, int position) {
67             holder.mView.setText("Holder at position " + position);
68             holder.mView.setTag(position);
69         }
70 
71 
72         @Override
getItemCount()73         public int getItemCount() {
74             return ITEM_COUNT;
75         }
76     }
77 }
78