如何更改PreferenceCategory/PreferenceScreen的文本颜色

Question

以下是：

preferences.xml

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

    <PreferenceCategory
        android:key="@string/pref_basicsettings_key"
        android:title="@string/pref_basicsettings_title" >
        <CheckBoxPreference
            android:defaultValue="@string/pref_test1_default"
            android:key="@string/pref_test1_key"
            android:summary="@string/pref_test1_dlg"
            android:title="@string/pref_test1_title" />
        <CheckBoxPreference
            android:defaultValue="@string/pref_test2_default"
            android:key="@string/pref_test2_key"
            android:summary="@string/pref_test2_dlg"
            android:title="@string/pref_test2_title" />
    </PreferenceCategory>
</PreferenceScreen>

BasicSettingsActivity.java

public class BasicSettingsActivity extends PreferenceActivity {

    public static final String TAG = BasicSettingsActivity.class
            .getSimpleName();

    /** Called when the activity is first created. */
    @SuppressWarnings("deprecation")
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        prefs.registerOnSharedPreferenceChangeListener(mSharedPreferenceListener);

        // add preference resource
        addPreferencesFromResource(com.testapp.R.xml.basic_settings);
    }
}

我该如何更改PreferenceCategory中的文本颜色？

- ssk

Answer 1

我添加了一个新的样式：

<style name="PreferenceScreen" parent="Theme.AppCompat">
    <item name="android:textColor">#ffffff</item>
    <item name="android:textColorPrimary">#ffffff</item>
    <item name="colorPrimary">#ff0000</item>
    <item name="colorPrimaryDark">#ff0000</item>
    <item name="colorAccent">#ff0000</item>
    <item name="android:background">#CCCCCC</item>
</style>

并将其包含在活动中：

<activity android:name="com.smartipcamera.owlcam.ui.BasicSettingsActivity"
    android:theme="@style/PreferenceScreen" >
</activity>

- ssk

---

你不知道如何使得当一个元素依赖于另一个元素且处于非活动状态时，这些颜色也会改变吗？我在自定义首选项屏幕时遇到了同样的问题。 - ArthurLodbrock

Answer 2

添加新样式

<style name="SettingStyle">
    <item name="android:background">#FFFFFF</item>
    <item name="android:textViewStyle">@style/PreferenceStyle</item>
</style>
<style name="PreferenceStyle" parent="android:Widget.TextView">
    <item name="android:textColor">#000000</item>
</style>

并将其包含在首选项活动中。

public class SettingsActivity extends AppCompatActivity {

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.setting);

    setTheme(R.style.SettingStyle);
    ....

}

- Andy Cheng