1 /*
2  * Copyright (C) 2014 The Android Open Source Project
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 android.support.v7.internal.widget;
18 
19 import android.content.Context;
20 import android.support.annotation.DrawableRes;
21 import android.util.AttributeSet;
22 import android.widget.ImageView;
23 
24 /**
25  * An tint aware {@link android.widget.ImageView}
26  *
27  * @hide
28  */
29 public class TintImageView extends ImageView {
30 
31     private static final int[] TINT_ATTRS = {
32             android.R.attr.background,
33             android.R.attr.src
34     };
35 
36     private final TintManager mTintManager;
37 
TintImageView(Context context)38     public TintImageView(Context context) {
39         this(context, null);
40     }
41 
TintImageView(Context context, AttributeSet attrs)42     public TintImageView(Context context, AttributeSet attrs) {
43         this(context, attrs, 0);
44     }
45 
TintImageView(Context context, AttributeSet attrs, int defStyleAttr)46     public TintImageView(Context context, AttributeSet attrs, int defStyleAttr) {
47         super(context, attrs, defStyleAttr);
48 
49         TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs, TINT_ATTRS,
50                 defStyleAttr, 0);
51         if (a.length() > 0) {
52             if (a.hasValue(0)) {
53                 setBackgroundDrawable(a.getDrawable(0));
54             }
55             if (a.hasValue(1)) {
56                 setImageDrawable(a.getDrawable(1));
57             }
58         }
59         a.recycle();
60 
61         // Keep the TintManager in case we need it later
62         mTintManager = a.getTintManager();
63     }
64 
65     @Override
setImageResource(@rawableRes int resId)66     public void setImageResource(@DrawableRes int resId) {
67         // Intercept this call and instead retrieve the Drawable via the tint manager
68         setImageDrawable(mTintManager.getDrawable(resId));
69     }
70 }
71