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