android - 更改 MaterialButtonToggleGroup 的背景颜色

Question

我正在使用 MaterialButtonToggleGroup 创建选择器按钮。我想更改 MaterialButton 按钮的背景颜色。它的默认颜色是淡蓝色，我想把它改成淡绿色。目前，我正在使用可绘制扇区来更改背景颜色，但它不起作用。

默认颜色，

想要这个颜色，

这是我的布局，

<com.google.android.material.button.MaterialButtonToggleGroup
    android:id="@+id/toggleContent"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:checkedButton="@id/btnOutline"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    android:visibility="visible"
    app:layout_constraintRight_toRightOf="parent"
    app:singleSelection="true">

    <com.google.android.material.button.MaterialButton
        android:id="@+id/btnOutline"
        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/button_selector"
        android:text="@string/outline"
        android:textAllCaps="false" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/btnMain"
        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
        android:background="@drawable/button_selector"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/main"
        android:textAllCaps="false" />

</com.google.android.material.button.MaterialButtonToggleGroup>

这是我的可绘制文件“button_selector”，

    <?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_selected="true" android:drawable="@drawable/selector_color"/>

</selector>

这里是“selector_color”文件，

  <?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">

    <solid android:color="#93cdcb"/>
</shape>

Answer 1

对于 Material 按钮，你应该使用 app:backgroundTint 而不是 android:backgroundAndroid文档在这里也提到了它: https://developer.android.com/reference/com/google/android/material/button/MaterialButton

Do not use the android:background attribute. MaterialButton managesits own background drawable, and setting a new background meansMaterialButton can no longer guarantee that the new attributes itintroduces will function properly

For filled buttons, this class uses your theme's ?attr/colorPrimaryfor the background tint color and ?attr/colorOnPrimary for the textcolor. For unfilled buttons, this class uses ?attr/colorPrimary forthe text color and transparent for the background tint.