android.preference.Preference#setShouldDisableView ( )源码实例Demo

/**
 * Initializes the Preference based on the state of any policies that may affect it,
 * e.g. by showing a managed icon or disabling clicks on the preference.
 *
 * This should be called once, before the preference is displayed.
 */
public void initPreference(Preference preference) {
    if (isPreferenceControlledByPolicy(preference)) {
        preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());

        if (isPreferenceClickDisabledByPolicy(preference)) {
            // Disable the views and prevent the Preference from mucking with the enabled state.
            preference.setShouldDisableView(false);

            // Prevent default click behavior.
            preference.setFragment(null);
            preference.setIntent(null);
            preference.setOnPreferenceClickListener(null);
        }
    }
}
 

/**
 * Initializes the Preference based on the state of any policies that may affect it,
 * e.g. by showing a managed icon or disabling clicks on the preference.
 *
 * This should be called once, before the preference is displayed.
 */
public void initPreference(Preference preference) {
    if (isPreferenceControlledByPolicy(preference)) {
        preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());

        if (isPreferenceClickDisabledByPolicy(preference)) {
            // Disable the views and prevent the Preference from mucking with the enabled state.
            preference.setShouldDisableView(false);

            // Prevent default click behavior.
            preference.setFragment(null);
            preference.setIntent(null);
            preference.setOnPreferenceClickListener(null);
        }
    }
}
 

/**
 * Initializes the Preference based on the state of any policies that may affect it,
 * e.g. by showing a managed icon or disabling clicks on the preference.
 *
 * This should be called once, before the preference is displayed.
 */
public void initPreference(Preference preference) {
    if (isPreferenceControlledByPolicy(preference)) {
        preference.setIcon(ManagedPreferencesUtils.getManagedByEnterpriseIconId());
    } else if (isPreferenceControlledByCustodian(preference)) {
        preference.setIcon(R.drawable.ic_account_child_grey600_36dp);
    }

    if (isPreferenceClickDisabledByPolicy(preference)) {
        // Disable the views and prevent the Preference from mucking with the enabled state.
        preference.setShouldDisableView(false);

        // Prevent default click behavior.
        preference.setFragment(null);
        preference.setIntent(null);
        preference.setOnPreferenceClickListener(null);
    }
}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    PreferenceUtils.addPreferencesFromResource(this, R.xml.autofill_and_payments_preferences);
    getActivity().setTitle(R.string.prefs_autofill_and_payments);

    ChromeSwitchPreference autofillSwitch =
            (ChromeSwitchPreference) findPreference(PREF_AUTOFILL_SWITCH);
    autofillSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            PersonalDataManager.setAutofillEnabled((boolean) newValue);
            return true;
        }
    });

    if (ChromeFeatureList.isEnabled(ChromeFeatureList.ANDROID_PAYMENT_APPS)) {
        Preference pref = new Preference(getActivity());
        pref.setTitle(getActivity().getString(R.string.payment_apps_title));
        pref.setFragment(AndroidPaymentAppsFragment.class.getCanonicalName());
        pref.setShouldDisableView(true);
        pref.setKey(PREF_ANDROID_PAYMENT_APPS);
        getPreferenceScreen().addPreference(pref);
    }
}
 

@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
    changed = true;
    // tricky to fix for android 2.3
    preference.setShouldDisableView(true);
    return true;
}