android - styles.xml の Edittext 背景

Question

私はstyles.xmlでこれを見ました：

?android:attr/editTextBackground

?android:attr/editTextBackground が何であるかを正確に把握する方法はありますか?

それはどこかにナインパッチですか？

Answer 1

Android ソースをオンラインで簡単に見つけることができます。Edit text background は、次のようなセレクターです。

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2007 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_window_focused="false" android:state_enabled="true" android:drawable="@drawable/textfield_default" />
    <item android:state_window_focused="false" android:state_enabled="false" android:drawable="@drawable/textfield_disabled" />
    <item android:state_enabled="true" android:state_focused="true" android:drawable="@drawable/textfield_selected" />
    <item android:state_enabled="true" android:drawable="@drawable/textfield_default" />
    <item android:state_focused="true" android:drawable="@drawable/textfield_disabled_selected" />
    <item android:drawable="@drawable/textfield_disabled" />
</selector>