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SpeedPickerListAdapter.java
/* * Copyright (C) 2014 Google Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.example.android.wearable.speedtracker.ui; import android.content.Context; import android.support.wearable.view.WearableListView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import com.example.android.wearable.speedtracker.R; /** * A {@link android.support.wearable.view.WearableListView.Adapter} that is used to populate the * list of speeds. */ public class SpeedPickerListAdapter extends WearableListView.Adapter { private int[] mDataSet; private final Context mContext; private final LayoutInflater mInflater; public SpeedPickerListAdapter(Context context, int[] dataset) { mContext = context; mInflater = LayoutInflater.from(context); mDataSet = dataset; } /** * Displays all possible speed limit choices. */ public static class ItemViewHolder extends WearableListView.ViewHolder { private TextView mTextView; public ItemViewHolder(View itemView) { super(itemView); // find the text view within the custom item's layout mTextView = (TextView) itemView.findViewById(R.id.name); } } /** * Create new views for list items (invoked by the WearableListView's layout manager) */ @Override public WearableListView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { // Inflate our custom layout for list items return new ItemViewHolder(mInflater.inflate(R.layout.speed_picker_item_layout, null)); } /** * Replaces the contents of a list item. Instead of creating new views, the list tries to * recycle existing ones. This is invoked by the WearableListView's layout manager. */ @Override public void onBindViewHolder(WearableListView.ViewHolder holder, int position) { // retrieve the text view ItemViewHolder itemHolder = (ItemViewHolder) holder; TextView view = itemHolder.mTextView; // replace text contents view.setText(mContext.getString(R.string.speed_for_list, mDataSet[position])); // replace list item's metadata holder.itemView.setTag(position); } /** * Return the size of the data set (invoked by the WearableListView's layout manager). */ @Override public int getItemCount() { return mDataSet.length; } }