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.ui; 18 19 import android.content.Context; 20 import android.graphics.drawable.GradientDrawable; 21 import android.support.wearable.view.WearableListView; 22 import android.util.AttributeSet; 23 import android.widget.ImageView; 24 import android.widget.LinearLayout; 25 import android.widget.TextView; 26 27 import com.example.android.wearable.speedtracker.R; 28 29 /** 30 * A simple extension of the {@link android.widget.LinearLayout} to represent a single item in a 31 * {@link android.support.wearable.view.WearableListView}. 32 */ 33 public class SpeedPickerLayout extends LinearLayout 34 implements WearableListView.OnCenterProximityListener { 35 36 private final float mFadedTextAlpha; 37 private final int mFadedCircleColor; 38 private final int mChosenCircleColor; 39 private ImageView mCircle; 40 private TextView mName; 41 SpeedPickerLayout(Context context)42 public SpeedPickerLayout(Context context) { 43 this(context, null); 44 } 45 SpeedPickerLayout(Context context, AttributeSet attrs)46 public SpeedPickerLayout(Context context, AttributeSet attrs) { 47 this(context, attrs, 0); 48 } 49 SpeedPickerLayout(Context context, AttributeSet attrs, int defStyle)50 public SpeedPickerLayout(Context context, AttributeSet attrs, 51 int defStyle) { 52 super(context, attrs, defStyle); 53 mFadedTextAlpha = getResources() 54 .getInteger(R.integer.action_text_faded_alpha) / 100f; 55 mFadedCircleColor = getResources().getColor(R.color.grey); 56 mChosenCircleColor = getResources().getColor(R.color.blue); 57 } 58 59 // Get references to the icon and text in the item layout definiton 60 @Override onFinishInflate()61 protected void onFinishInflate() { 62 super.onFinishInflate(); 63 mCircle = (ImageView) findViewById(R.id.circle); 64 mName = (TextView) findViewById(R.id.name); 65 } 66 67 @Override onCenterPosition(boolean animate)68 public void onCenterPosition(boolean animate) { 69 mName.setAlpha(1f); 70 ((GradientDrawable) mCircle.getDrawable()).setColor(mChosenCircleColor); 71 } 72 73 @Override onNonCenterPosition(boolean animate)74 public void onNonCenterPosition(boolean animate) { 75 ((GradientDrawable) mCircle.getDrawable()).setColor(mFadedCircleColor); 76 mName.setAlpha(mFadedTextAlpha); 77 78 } 79 } 80