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.Intent; 21 import android.os.Bundle; 22 import android.support.wearable.view.WearableListView; 23 import android.widget.TextView; 24 25 import com.example.android.wearable.speedtracker.ui.SpeedPickerListAdapter; 26 27 /** 28 * An activity that presents a list of speeds to user and allows user to pick one, to be used as 29 * the current speed limit. 30 */ 31 public class SpeedPickerActivity extends Activity implements WearableListView.ClickListener { 32 33 public static final String EXTRA_NEW_SPEED_LIMIT = 34 "com.example.android.wearable.speedtracker.extra.NEW_SPEED_LIMIT"; 35 36 /* Speeds, in mph, that will be shown on the list */ 37 private int[] speeds = {25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75}; 38 39 @Override 40 protected void onCreate(Bundle savedInstanceState) { 41 super.onCreate(savedInstanceState); 42 setContentView(R.layout.speed_picker_activity); 43 44 final TextView header = (TextView) findViewById(R.id.header); 45 46 // Get the list component from the layout of the activity 47 WearableListView listView = (WearableListView) findViewById(R.id.wearable_list); 48 49 // Assign an adapter to the list 50 listView.setAdapter(new SpeedPickerListAdapter(this, speeds)); 51 52 // Set a click listener 53 listView.setClickListener(this); 54 55 listView.addOnScrollListener(new WearableListView.OnScrollListener() { 56 @Override 57 public void onScroll(int i) { 58 } 59 60 @Override 61 public void onAbsoluteScrollChange(int i) { 62 // only scroll the header up from the base position, not down... 63 if (i > 0) { 64 header.setY(-i); 65 } 66 } 67 68 @Override 69 public void onScrollStateChanged(int i) { 70 } 71 72 @Override 73 public void onCentralPositionChanged(int i) { 74 } 75 }); 76 } 77 78 @Override 79 public void onClick(WearableListView.ViewHolder viewHolder) { 80 81 int newSpeedLimit = speeds[viewHolder.getPosition()]; 82 83 Intent resultIntent = new Intent(Intent.ACTION_PICK); 84 resultIntent.putExtra(EXTRA_NEW_SPEED_LIMIT, newSpeedLimit); 85 setResult(RESULT_OK, resultIntent); 86 87 finish(); 88 } 89 90 @Override 91 public void onTopEmptyRegionClick() { 92 } 93 } 94
