如何將 TextView 文本顏色設置為特定的主題顏色

Question

我嘗試學習 Android 主題，但在將TextView TextColor 設置為另一種顏色時遇到了麻煩，然后是這個全局顏色：

<item name="android:textColor">@color/white</item>

我創建了這個：

 <item name="chatBubbleTextColor">@color/material_bohemia_500</item>

並認為我可以在 TextView xml 中使用它

android:textColor="?attr/chatBubbleTextColor"

但我無法讓它工作，也許它不是那樣工作的？
我知道我可以這樣做：

<style name="BohemiachatBubbleTextColor" parent="android:Theme">
    <item name="android:textColor">@color/material_bohemia_500</item>
</style>

但我真的必須這樣做嗎？ 我只想創建一個顏色屬性而不是創建一個新樣式

這是主題，它是兩個主題，兩者的chatBubbleTextColor都不同

Bohemia App Theme 和 Red App Theme

<!-- Base Theme -->
<style name="BaseTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Attributes for all APIs -->
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
    <item name="dialogTheme">@style/AppTheme.Dialog</item>
    <item name="alertDialogTheme">@style/AppTheme.Dialog.Alert</item>
    <item name="colorControlHighlight">@color/selector_black_pressed</item>
    <!-- Theme for the Preferences -->
    <item name="preferenceTheme">@style/AppPreferenceTheme</item>
    <!-- Theme for the pacv_placesAutoCompleteTextV -->
    <item name="pacv_placesAutoCompleteTextViewStyle">@style/Widget.AppCompat.EditText</item>



<!-- Default App Theme -->
<style name="AppTheme" parent="BaseTheme">
    <!-- API specific attributes 14+ -->
    <item name="selectableRectDrawable">@drawable/state_list_selectable_rect_black</item>
    <item name="selectableRectDrawableInverse">@drawable/state_list_selectable_rect_white</item>
    <item name="selectableRectDrawableColored">@drawable/state_list_selectable_rect_black</item>
    <item name="selectableRoundedRectDrawable">@drawable/state_list_selectable_rounded_rect_black</item>
    <item name="selectableRoundedRectDrawableInverse">@drawable/state_list_selectable_rounded_rect_white</item>
    <item name="selectableRoundedRectDrawableColored">@drawable/state_list_selectable_rounded_rect_black</item>
</style>



<!-- Bohemia App Theme -->
<style name="BaseTheme.Bohemia" parent="AppTheme">
    <!-- Attributes for all APIs -->
    <item name="colorPrimary">@color/material_bohemia_400</item>
    <item name="colorPrimaryDark">@color/material_bohemia_500</item>
    <item name="colorAccent">@color/material_bohemia_a100</item>
    <item name="dialogTheme">@style/AppTheme.Dialog.Bohemia</item>
    <item name="alertDialogTheme">@style/AppTheme.Dialog.Alert.Bohemia</item>
    <item name="android:windowBackground">@color/material_bohemia_600</item>
    <!-- Sets the color of the control when it is not activated like an unchecked checkbox. -->
    <item name="colorControlNormal">@color/material_bohemia_a200</item>
    <!-- Chat bubble -->
    <item name="chatBubbleTextColor">@color/material_bohemia_500</item>

</style>

<style name="AppTheme.Bohemia" parent="BaseTheme.Bohemia">
    <!-- API specific attributes 14+ -->
    <item name="selectableRectDrawableColored">@drawable/state_list_selectable_rect_bohemia</item>
    <item name="selectableRoundedRectDrawableColored">@drawable/state_list_selectable_rounded_rect_bohemia</item>
    <!-- Add your custom overall styles here -->
</style>

<!-- Red App Theme -->
<style name="BaseTheme.Red" parent="AppTheme">
    <!-- Attributes for all APIs -->
    <item name="colorPrimary">@color/material_red_500</item>
    <item name="colorPrimaryDark">@color/material_red_700</item>
    <item name="colorAccent">@color/material_red_a700</item>
    <item name="dialogTheme">@style/AppTheme.Dialog.Red</item>
    <item name="alertDialogTheme">@style/AppTheme.Dialog.Alert.Red</item>
    <item name="android:windowBackground">@color/material_red_300</item>
    <!-- Chat bubble -->
    <item name="chatBubbleTextColor">@color/material_red_500</item>
</style>

<style name="AppTheme.Red" parent="BaseTheme.Red">
    <!-- API specific attributes 14+ -->
    <item name="selectableRectDrawableColored">@drawable/state_list_selectable_rect_red</item>
    <item name="selectableRoundedRectDrawableColored">@drawable/state_list_selectable_rounded_rect_red</item>

    <!-- Add your custom overall styles here -->
</style>

Answer 1

我在這里找到了我自己的問題的答案。

基本上是這樣的：

在文件attr.xml我定義了這個：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <attr name="ChatBubbleBackGroundColor" format="reference|color" />
    <attr name="ChatBubbleTextColor" format="reference|color" />
</resources>

接下來我添加到我的兩個BaseTheme s：

<style name="BaseTheme.Red" parent="AppTheme">
   <item name="ChatBubbleBackGroundColor">@color/material_red_a200</item>
   <item name="ChatBubbleTextColor">@color/material_red_a700</item>
</style>

<style name="BaseTheme.Orange" parent="AppTheme">
   <item name="ChatBubbleBackGroundColor">@color/material_orange_a200</item>
   <item name="ChatBubbleTextColor">@color/material_orange_a700</item>
</style>

最后在我的布局中：

<TextView
    android:id="@+id/quoteTitle"
    android:textColor="?ChatBubbleTextColor"
    android:BackGround="?ChatBubbleBackGroundColor"
    ...
</TextView>

Answer 2

在您的 TextView 中使用style="@style/chatBubbleTextColor"而不是android:textColor="?attr/chatBubbleTextColor" 。 像這樣的東西

<TextView
                style="@style/chatBubbleTextColor"
                android:id="@+id/my_id"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                 />

Answer 3

如果您將此主題應用於任何活動，則您已在此主題中為chatBubbleTextColor設置顏色 android: TextView = <style name="BaseTheme.Bohemia" parent="AppTheme"> android:textColor="?attr/chatBubbleTextColor"那么如果在AppTheme樣式中設置chatBubbleTextColor它將工作，它將對整個應用程序可用