mirror of
https://github.com/material-components/material-components-android.git
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1217dcfb55
In TalkBack, once the menu is double tapped the focus automatically changes to the first item on the dropdown list, just like how it would with a Spinner. Clients may keep using the framework's AutoCompleteTextView inside of the TextInputLayout as before. PiperOrigin-RevId: 272026973
122 lines
4.4 KiB
Java
122 lines
4.4 KiB
Java
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.material.theme;
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import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
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import android.content.Context;
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import android.os.Build.VERSION;
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import android.os.Build.VERSION_CODES;
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import androidx.annotation.Keep;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.RestrictTo;
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import androidx.appcompat.app.AppCompatViewInflater;
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import android.support.v7.widget.AppCompatAutoCompleteTextView;
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import androidx.appcompat.widget.AppCompatButton;
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import androidx.appcompat.widget.AppCompatCheckBox;
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import androidx.appcompat.widget.AppCompatRadioButton;
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import androidx.appcompat.widget.AppCompatTextView;
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import android.util.AttributeSet;
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import com.google.android.material.button.MaterialButton;
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import com.google.android.material.checkbox.MaterialCheckBox;
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import com.google.android.material.radiobutton.MaterialRadioButton;
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import com.google.android.material.textview.MaterialAutoCompleteTextView;
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import com.google.android.material.textview.MaterialTextView;
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/**
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* An extension of {@link AppCompatViewInflater} that replaces some framework widgets with Material
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* Components ones at inflation time, provided a Material Components theme is in use.
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*/
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@Keep // Make proguard keep this class as it's accessed reflectively by AppCompat
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public class MaterialComponentsViewInflater extends AppCompatViewInflater {
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// Cached background resource ID used for workaround to not inflate MaterialButton in
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// API 23-25 FloatingToolbar. Technically 0 is the only invalid resource ID, but we are assuming
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// it's safe to use -1 as a sentinel here.
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private static int floatingToolbarItemBackgroundResId = -1;
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@NonNull
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@Override
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protected AppCompatButton createButton(@NonNull Context context, @NonNull AttributeSet attrs) {
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if (shouldInflateAppCompatButton(context, attrs)) {
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return new AppCompatButton(context, attrs);
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}
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return new MaterialButton(context, attrs);
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}
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/** @hide */
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@RestrictTo(LIBRARY_GROUP)
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protected boolean shouldInflateAppCompatButton(
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@NonNull Context context, @NonNull AttributeSet attrs) {
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// Workaround for FloatingToolbar inflating floating_popup_menu_button.xml on API 23-25, which
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// should not have MaterialButton styling.
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if (!(VERSION.SDK_INT == VERSION_CODES.M
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|| VERSION.SDK_INT == VERSION_CODES.N
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|| VERSION.SDK_INT == VERSION_CODES.N_MR1)) {
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return false;
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}
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if (floatingToolbarItemBackgroundResId == -1) {
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floatingToolbarItemBackgroundResId =
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context
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.getResources()
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.getIdentifier("floatingToolbarItemBackgroundDrawable", "^attr-private", "android");
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}
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if (floatingToolbarItemBackgroundResId != 0 && floatingToolbarItemBackgroundResId != -1) {
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for (int i = 0; i < attrs.getAttributeCount(); i++) {
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if (attrs.getAttributeNameResource(i) == android.R.attr.background) {
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int backgroundResourceId = attrs.getAttributeListValue(i, null, 0);
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if (floatingToolbarItemBackgroundResId == backgroundResourceId) {
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return true;
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}
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}
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}
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}
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return false;
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}
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@NonNull
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@Override
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protected AppCompatCheckBox createCheckBox(Context context, AttributeSet attrs) {
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return new MaterialCheckBox(context, attrs);
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}
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@NonNull
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@Override
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protected AppCompatRadioButton createRadioButton(Context context, AttributeSet attrs) {
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return new MaterialRadioButton(context, attrs);
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}
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@NonNull
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@Override
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protected AppCompatTextView createTextView(Context context, AttributeSet attrs) {
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return new MaterialTextView(context, attrs);
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}
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@NonNull
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@Override
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protected AppCompatAutoCompleteTextView createAutoCompleteTextView(
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@NonNull Context context, @Nullable AttributeSet attrs) {
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return new MaterialAutoCompleteTextView(context, attrs);
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}
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}
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