MaterialButton 和简单的 Button 之间有什么区别吗? [英] Is any difference between a MaterialButton and a simple Button?

问题描述

如果我将Theme.MaterialComponents.Light设置为我的主题，如果我在xml布局中使用这两个按钮会有什么区别吗?

If I set Theme.MaterialComponents.Light as my main theme, will be any difference between these two buttons if I use them in an xml layout?

<Button />

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

正如我所见，它们的行为都与 MaterialButton 相同.如果我想获得旧的普通按钮的行为，我必须使用:

As I saw they behave both as MaterialButtons. If I want to get the behavior of the old plain button, I have to use:

<androidx.appcompat.widget.AppCompatButton />

提前致谢！

推荐答案

如果您使用的是 MaterialComponents 主题，没有区别> 和 .

If you are using a MaterialComponents Theme there is no difference between <Button /> and <com.google.android.material.button.MaterialButton />.

启用了自动膨胀，将用<com.google.android.material替换.button.MaterialButton 在运行时.

There is an auto-inflation enabled which will replace <Button with <com.google.android.material.button.MaterialButton at runtime.

MaterialComponentsViewInflater 在膨胀时用 Material Components 替换一些框架小部件，前提是使用 MaterialComponents 主题.
AppCompat 也会发生类似的情况(您可以检查 MaterialComponentsViewInflater 扩展 AppCompatViewInflater).

这意味着，<Button 在运行时被替换为 <com.google.android.material.button.MaterialButton，如果您使用的是 MaterialComponents 主题.

It means that, the <Button is replaced <com.google.android.material.button.MaterialButton at runtime, if you are using a MaterialComponents Theme.

如果我想获得旧的普通按钮的行为，我必须使用:.

If I want to get the behavior of the old plain button, I have to use: <androidx.appcompat.widget.AppCompatButton />.

这是一种选择，但不一定.
这取决于您想要实现的目标.您还可以配置自定义样式，因为 Widget.MaterialComponents.Button 样式由 Widget.AppCompat.Button 样式继承.

It is an option, but not necessarily.
It depends by what you want to achieve. You can also config a custom style since the Widget.MaterialComponents.Button style inherits by Widget.AppCompat.Button style.

就是区别:

<style name="Widget.MaterialComponents.Button" parent="Widget.AppCompat.Button">
    <item name="enforceMaterialTheme">true</item>
    <item name="enforceTextAppearance">true</item>
    <item name="android:textAppearance">?attr/textAppearanceButton</item>
    <item name="android:textColor">@color/mtrl_btn_text_color_selector</item>
    <item name="android:paddingLeft">@dimen/mtrl_btn_padding_left</item>
    <item name="android:paddingRight">@dimen/mtrl_btn_padding_right</item>
    <item name="android:paddingTop">@dimen/mtrl_btn_padding_top</item>
    <item name="android:paddingBottom">@dimen/mtrl_btn_padding_bottom</item>
    <item name="android:insetLeft">0dp</item>
    <item name="android:insetRight">0dp</item>
    <item name="android:insetTop">@dimen/mtrl_btn_inset</item>
    <item name="android:insetBottom">@dimen/mtrl_btn_inset</item>
    <item name="android:stateListAnimator" ns2:ignore="NewApi">@animator/mtrl_btn_state_list_anim</item>
    <item name="cornerRadius">@null</item>
    <item name="elevation">@dimen/mtrl_btn_elevation</item>
    <item name="iconPadding">@dimen/mtrl_btn_icon_padding</item>
    <item name="iconTint">@color/mtrl_btn_text_color_selector</item>
    <item name="rippleColor">@color/mtrl_btn_ripple_color</item>
    <item name="backgroundTint">@color/mtrl_btn_bg_color_selector</item>
    <item name="shapeAppearance">?attr/shapeAppearanceSmallComponent</item>
  </style>

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