我写了这个SSCCE来说明问题。模拟器是NexusFive但它定制了使用API​​22。

SSCCE 的

RES /价值/ colors.xml

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;

＆LT;资源＆GT;
    ＆LT;颜色名称=primaryColor＆GT;＃69F0AE＆LT; /彩色＆GT; ＆所述;！ - 光ferozi  - ＆GT;
    ＆LT;颜色名称=primaryColorDark＆GT;＃00E676＆LT; /彩色＆GT; ＆LT;！ - 较深Ferozi  - ＆GT;
    ＆LT;颜色名称=accentColor＆GT;＃F44336＆LT; /彩色＆GT; ＆LT;！ - 红500  - ＆GT;
＆LT; /资源＆GT;
 

RES /价值/ styles.xml

 ＆LT;资源＆GT;

    ＆LT;样式名称=AppBaseTheme父=Theme.AppCompat＆GT;＆LT; /风格＆GT;


    ＆LT;样式名称=AppTheme父=AppBaseTheme＆GT;
        ＆LT;项目名称=colorPrimary＆GT; @色/ primaryColor＆LT; /项目＆GT;
        ＆LT;项目名称=colorPrimaryDark＆GT; @色/ primaryColorDark＆LT; /项目＆GT;
        ＆LT;项目名称=colorAccent＆GT; @色/ accentColor＆LT; /项目＆GT;
    ＆LT; /风格＆GT;

＆LT; /资源＆GT;
 

RES /值-V21 / styles.xml

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT;资源＆GT;
    ＆LT;样式名称=AppTheme父=AppBaseTheme＆GT;
        ＆LT;项目名称=机器人：colorPrimary＆GT; @色/ primaryColor＆LT; /项目＆GT;
        ＆LT;项目名称=机器人：colorPrimaryDark＆GT; @色/ primaryColorDark＆LT; /项目＆GT;
        ＆LT;项目名称=机器人：colorAccent＆GT; @色/ accentColor＆LT; /项目＆GT;
    ＆LT; /风格＆GT;
＆LT; /资源＆GT;
 

activity_main.xml

 ＆LT; RelativeLayout的的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    的xmlns：工具=htt​​p://schemas.android.com/tool​​s

    机器人：layout_width =match_parent
    机器人：layout_height =match_parent

    机器人：paddingBottom会=@扪/ activity_vertical_margin
    机器人：以下属性来=@扪/ activity_horizo​​ntal_margin
    机器人：paddingRight =@扪/ activity_horizo​​ntal_margin
    机器人：paddingTop =@扪/ activity_vertical_margin

    工具：上下文=practice_projects.material_design_google_now_like_searchbox_four.MainActivity＆GT;

    ＆LT;的TextView
        机器人：layout_width =WRAP_CONTENT
        机器人：layout_height =WRAP_CONTENT
        机器人：文本=@字符串/参考hello world/＆GT;

＆LT; / RelativeLayout的＆GT;
 

MainActivity.java

 公共类MainActivity扩展AppCompatActivity {

    @覆盖
    保护无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_main）;
    }

    @覆盖
    公共布尔onCreateOptionsMenu（功能菜单）{
        //充气菜单;这增加了项目操作栏，如果它是present。
        。getMenuInflater（）膨胀（R.menu.main，菜单）;
        返回true;
    }

    @覆盖
    公共布尔onOptionsItemSelected（菜单项项）{
        //处理动作栏项目点击这里。将操作栏
        //自动在主/向上按钮操作的点击，只要
        //你在AndroidManifest.xml中指定一个父活动。
        INT的id = item.getItemId（）;
        如果（ID == R.id.action_settings）{
            返回true;
        }
        返回super.onOptionsItemSelected（项目）;
    }
}
 

解决方案

这是 AppCompatActivity 将无法识别安卓colorPrimary 。如果您只更改这些属性，这是完全没有必要创建一个V21 styles.xml。如果您自定义其他属性V21，那么只需将颜色属性的基本主题和V21 styles.xml删除它们。

I wrote this SSCCE to demonstrate the problem. The emulator is NexusFive but it is customised to use API22.

SSCCE

res/values/colors.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>
    <color name="primaryColor">#69F0AE</color> <!-- Light ferozi -->
    <color name="primaryColorDark">#00E676</color> <!-- Darker Ferozi -->
    <color name="accentColor">#F44336</color> <!-- Red 500 -->
</resources>

res/values/styles.xml

<resources>

    <style name="AppBaseTheme" parent="Theme.AppCompat"></style>


    <style name="AppTheme" parent="AppBaseTheme">
        <item name="colorPrimary">@color/primaryColor</item>
        <item name="colorPrimaryDark">@color/primaryColorDark</item>
        <item name="colorAccent">@color/accentColor</item>
    </style>

</resources>

res/values-v21/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="AppBaseTheme">
        <item name="android:colorPrimary">@color/primaryColor</item>
        <item name="android:colorPrimaryDark">@color/primaryColorDark</item>
        <item name="android:colorAccent">@color/accentColor</item>
    </style>
</resources>

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"
    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="practice_projects.material_design_google_now_like_searchbox_four.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</RelativeLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

An AppCompatActivity will not recognize android:colorPrimary. If you are only changing these properties, it is completely unnecessary to create a v21 styles.xml. If you are customizing other properties for v21, then just move your color properties to the base theme and delete them from v21 styles.xml.