PreferenceUtils.java 文件源码

/**
 * A helper that is used to load preferences from XML resources without causing a
 * StrictModeViolation. See http://crbug.com/692125.
 *
 * @param preferenceFragment A PreferenceFragment.
 * @param preferencesResId   The id of the XML resource to add to the PreferenceFragment.
 */
public static void addPreferencesFromResource(
        PreferenceFragment preferenceFragment, @XmlRes int preferencesResId) {
    StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
    try {
        preferenceFragment.addPreferencesFromResource(preferencesResId);
    } finally {
        StrictMode.setThreadPolicy(oldPolicy);
    }
}