1 /* 2 * Copyright (C) 2014 Google Inc. All Rights Reserved. 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.wearable.speedtracker; 18 19 import android.app.Activity; 20 import android.content.SharedPreferences; 21 import android.os.Bundle; 22 import android.preference.PreferenceManager; 23 import android.support.wearable.view.WearableListView; 24 import android.widget.TextView; 25 26 import com.example.android.wearable.speedtracker.ui.SpeedPickerListAdapter; 27 28 /** 29 * An activity that presents a list of speeds to user and allows user to pick one, to be used as 30 * the current speed limit. 31 */ 32 public class SpeedPickerActivity extends Activity implements WearableListView.ClickListener { 33 34 /* Speeds, in mph, that will be shown on the list */ 35 private int[] speeds = {25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75}; 36 37 @Override 38 protected void onCreate(Bundle savedInstanceState) { 39 super.onCreate(savedInstanceState); 40 setContentView(R.layout.speed_picker_activity); 41 42 final TextView header = (TextView) findViewById(R.id.header); 43 44 // Get the list component from the layout of the activity 45 WearableListView listView = (WearableListView) findViewById(R.id.wearable_list); 46 47 // Assign an adapter to the list 48 listView.setAdapter(new SpeedPickerListAdapter(this, speeds)); 49 50 // Set a click listener 51 listView.setClickListener(this); 52 53 listView.addOnScrollListener(new WearableListView.OnScrollListener() { 54 @Override 55 public void onScroll(int i) { 56 } 57 58 @Override 59 public void onAbsoluteScrollChange(int i) { 60 // only scroll the header up from the base position, not down... 61 if (i > 0) { 62 header.setY(-i); 63 } 64 } 65 66 @Override 67 public void onScrollStateChanged(int i) { 68 } 69 70 @Override 71 public void onCentralPositionChanged(int i) { 72 } 73 }); 74 } 75 76 @Override 77 public void onClick(WearableListView.ViewHolder viewHolder) { 78 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this); 79 pref.edit().putInt(WearableMainActivity.PREFS_SPEED_LIMIT_KEY, 80 speeds[viewHolder.getPosition()]).apply(); 81 finish(); 82 } 83 84 @Override 85 public void onTopEmptyRegionClick() { 86 } 87 } 88