AppCompatAutoCompleteTextView.java revision 091b0f935e68ce9bfecc2422e60eada33fa3b09c 
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
17package android.support.v7.widget;
18
19import android.content.Context;
20import android.content.res.ColorStateList;
21import android.graphics.PorterDuff;
22import android.graphics.drawable.Drawable;
23import android.support.annotation.DrawableRes;
24import android.support.annotation.Nullable;
25import android.support.v4.view.TintableBackgroundView;
26import android.support.v7.appcompat.R;
27import android.support.v7.internal.widget.TintContextWrapper;
28import android.support.v7.internal.widget.TintManager;
29import android.support.v7.internal.widget.TintTypedArray;
30import android.util.AttributeSet;
31import android.widget.AutoCompleteTextView;
32
33/**
34 * A {@link AutoCompleteTextView} which supports compatible features on older version of the
35 * platform, including:
36 * <ul>
37 *     <li>Supports {@link R.attr#textAllCaps} style attribute which works back to
38 *     {@link android.os.Build.VERSION_CODES#ECLAIR_MR1 Eclair MR1}.</li>
39 *     <li>Allows dynamic tint of it background via the background tint methods in
40 *     {@link android.support.v4.view.ViewCompat}.</li>
41 *     <li>Allows setting of the background tint using {@link R.attr#backgroundTint} and
42 *     {@link R.attr#backgroundTintMode}.</li>
43 * </ul>
44 *
45 * <p>This will automatically be used when you use {@link AutoCompleteTextView} in your layouts.
46 * You should only need to manually use this class when writing custom views.</p>
47 */
48public class AppCompatAutoCompleteTextView extends AutoCompleteTextView implements
49        TintableBackgroundView {
50
51    private static final int[] TINT_ATTRS = {
52            android.R.attr.popupBackground
53    };
54
55    private TintManager mTintManager;
56    private AppCompatBackgroundHelper mBackgroundTintHelper;
57    private AppCompatTextHelper mTextHelper;
58
59    public AppCompatAutoCompleteTextView(Context context) {
60        this(context, null);
61    }
62
63    public AppCompatAutoCompleteTextView(Context context, AttributeSet attrs) {
64        this(context, attrs, R.attr.autoCompleteTextViewStyle);
65    }
66
67    public AppCompatAutoCompleteTextView(Context context, AttributeSet attrs, int defStyleAttr) {
68        super(TintContextWrapper.wrap(context), attrs, defStyleAttr);
69
70        TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs,
71                TINT_ATTRS, defStyleAttr, 0);
72        mTintManager = a.getTintManager();
73        if (a.hasValue(0)) {
74            setDropDownBackgroundDrawable(a.getDrawable(0));
75        }
76        a.recycle();
77
78        mBackgroundTintHelper = new AppCompatBackgroundHelper(this, mTintManager);
79        mBackgroundTintHelper.loadFromAttributes(attrs, defStyleAttr);
80
81        mTextHelper = new AppCompatTextHelper(this);
82        mTextHelper.loadFromAttributes(attrs, defStyleAttr);
83    }
84
85    @Override
86    public void setDropDownBackgroundResource(@DrawableRes int resId) {
87        if (mTintManager != null) {
88            setDropDownBackgroundDrawable(mTintManager.getDrawable(resId));
89        } else {
90            super.setDropDownBackgroundResource(resId);
91        }
92    }
93
94    @Override
95    public void setBackgroundResource(@DrawableRes int resId) {
96        super.setBackgroundResource(resId);
97        if (mBackgroundTintHelper != null) {
98            mBackgroundTintHelper.onSetBackgroundResource(resId);
99        }
100    }
101
102    @Override
103    public void setBackgroundDrawable(Drawable background) {
104        super.setBackgroundDrawable(background);
105        if (mBackgroundTintHelper != null) {
106            mBackgroundTintHelper.onSetBackgroundDrawable(background);
107        }
108    }
109
110    /**
111     * This should be accessed via
112     * {@link android.support.v4.view.ViewCompat#setBackgroundTintList(android.view.View, ColorStateList)}
113     *
114     * @hide
115     */
116    @Override
117    public void setSupportBackgroundTintList(@Nullable ColorStateList tint) {
118        if (mBackgroundTintHelper != null) {
119            mBackgroundTintHelper.setSupportBackgroundTintList(tint);
120        }
121    }
122
123    /**
124     * This should be accessed via
125     * {@link android.support.v4.view.ViewCompat#getBackgroundTintList(android.view.View)}
126     *
127     * @hide
128     */
129    @Override
130    @Nullable
131    public ColorStateList getSupportBackgroundTintList() {
132        return mBackgroundTintHelper != null
133                ? mBackgroundTintHelper.getSupportBackgroundTintList() : null;
134    }
135
136    /**
137     * This should be accessed via
138     * {@link android.support.v4.view.ViewCompat#setBackgroundTintMode(android.view.View, PorterDuff.Mode)}
139     *
140     * @hide
141     */
142    @Override
143    public void setSupportBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) {
144        if (mBackgroundTintHelper != null) {
145            mBackgroundTintHelper.setSupportBackgroundTintMode(tintMode);
146        }
147    }
148
149    /**
150     * This should be accessed via
151     * {@link android.support.v4.view.ViewCompat#getBackgroundTintMode(android.view.View)}
152     *
153     * @hide
154     */
155    @Override
156    @Nullable
157    public PorterDuff.Mode getSupportBackgroundTintMode() {
158        return mBackgroundTintHelper != null
159                ? mBackgroundTintHelper.getSupportBackgroundTintMode() : null;
160    }
161
162    @Override
163    protected void drawableStateChanged() {
164        super.drawableStateChanged();
165        if (mBackgroundTintHelper != null) {
166            mBackgroundTintHelper.applySupportBackgroundTint();
167        }
168    }
169
170    @Override
171    public void setTextAppearance(Context context, int resId) {
172        super.setTextAppearance(context, resId);
173        if (mTextHelper != null) {
174            mTextHelper.onSetTextAppearance(context, resId);
175        }
176    }
177}
178