Tizen 本机 Web 视图：如何在本机 Web 视图中存储和恢复 cookie？

Question

我正在尝试开发本机 Web 视图应用程序，并且运行良好。但是每次我关闭并重新启动应用程序时，所有 login/cookie 信息都会丢失。如何在本机 Web 视图中存储和恢复 Cookie？

非常奇怪的是：HTML5 网络存储（本地数据库）已恢复，但 cookie 不再可用！？

你有什么信息要给我吗？

这是我正在使用的基本代码（来自三星示例）：

#include "webviewexample.h"

// Header files needed for  EWK Webkit
#include <Ecore.h>
#include <Ecore_Evas.h>
#include <Ecore_Getopt.h>
#include <Eet.h>
#include <Eina.h>
#include <Elementary.h>
#include <Evas.h>
#include <EWebKit.h>
#include <app.h>

typedef struct appdata {
    Evas_Object *win;
    Evas_Object *conform;
    Evas_Object *label;
    Evas_Object *entry;
    Evas_Object *web_view;
    Evas_Object *back_button;
    Evas_Object *forward_button;
} appdata_s;

static void
win_back_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s *ad = data;
    /* Let window go to hide state. */
    elm_win_iconified_set(ad->win, EINA_TRUE);
}

static void
btn_go_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s* ad = data;
    ewk_view_url_set(ad->web_view, elm_object_text_get(ad->entry) );
}

static void
btn_prev_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s* ad = data;
    if( ewk_view_back_possible( ad->web_view ) == EINA_TRUE )
        ewk_view_back( ad->web_view );
}

static void
btn_next_cb(void *data, Evas_Object *obj, void *event_info)
{
    appdata_s* ad = data;
    if( ewk_view_forward_possible( ad->web_view ) == EINA_TRUE )
        ewk_view_forward( ad->web_view );
}

static void
my_table_pack(Evas_Object *table, Evas_Object *child, int x, int y, int w, int h)
{
   evas_object_size_hint_align_set(child, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(child, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_table_pack(table, child, x, y, w, h);
   evas_object_show(child);
}

static void
create_base_gui(appdata_s *ad)
{
    /* set up policy to exit when last window is closed */
    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
    /* Window */
    ad->win = elm_win_util_standard_add(PACKAGE, PACKAGE);
    elm_win_autodel_set(ad->win, EINA_TRUE);

    int rots[4] = { 0, 90, 180, 270 };
    elm_win_wm_rotation_available_rotations_set(ad->win, (const int *)(&rots), 4);

    eext_object_event_callback_add(ad->win, EEXT_CALLBACK_BACK, win_back_cb, ad);

    {
        /* Box to put the table in so we can bottom-align the table
         * window will stretch all resize object content to win size */
        Evas_Object *box = elm_box_add(ad->win);
        evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        elm_win_resize_object_add(ad->win, box);
        evas_object_show(box);

        /* Table */
        Evas_Object *table = elm_table_add(ad->win);
        /* Make table homogenous - every cell will be the same size */
        elm_table_homogeneous_set(table, EINA_TRUE);
        /* Set padding of 10 pixels multiplied by scale factor of UI */
        elm_table_padding_set(table, 5 * elm_config_scale_get(), 10 * elm_config_scale_get());
        /* Let the table child allocation area expand within in the box */
        evas_object_size_hint_weight_set(table, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        /* Set table to fiill width but align to bottom of box */
        evas_object_size_hint_align_set(table, EVAS_HINT_FILL, EVAS_HINT_FILL);
        elm_box_pack_end(box, table);
        evas_object_show(table);

        {
            /* Entry */
            ad->entry = elm_entry_add(ad->win);
            elm_entry_scrollable_set(ad->entry, EINA_TRUE);
            eext_entry_selection_back_event_allow_set(ad->entry, EINA_TRUE);
            elm_object_text_set(ad->entry, "http://www.tizen.org");
            my_table_pack(table, ad->entry, 0, 0, 3, 1);

            /* Button-1 */
            Evas_Object *btn = elm_button_add(ad->win);
            elm_object_text_set(btn, "Prev");
            evas_object_smart_callback_add(btn, "clicked", btn_prev_cb, ad);
            my_table_pack(table, btn, 0, 1, 1, 1);

            /* Button-2 */
            btn = elm_button_add(ad->win);
            elm_object_text_set(btn, "Go");
            evas_object_smart_callback_add(btn, "clicked", btn_go_cb, ad);
            my_table_pack(table, btn, 1, 1, 1, 1);

            /* Button-3 */
            btn = elm_button_add(ad->win);
            elm_object_text_set(btn, "Next");
            evas_object_smart_callback_add(btn, "clicked", btn_next_cb, ad);
            my_table_pack(table, btn, 2, 1, 1, 1);

            /* WebView */
            Evas *evas = evas_object_evas_get(ad->win);
            ad->web_view = ewk_view_add(evas);
            ewk_view_url_set(ad->web_view, elm_object_text_get(ad->entry) );
            my_table_pack(table, ad->web_view, 0, 2, 3, 8);

        }
    }

    /* Show window after base gui is set up */
    evas_object_show(ad->win);
}

static bool
app_create(void *data)
{
    /* Hook to take necessary actions before main event loop starts
        Initialize UI resources and application's data
        If this function returns true, the main loop of application starts
        If this function returns false, the application is terminated */
    appdata_s *ad = data;

    create_base_gui(ad);

    return true;
}

static void
app_control(app_control_h app_control, void *data)
{
    /* Handle the launch request. */
}

static void
app_pause(void *data)
{
    /* Take necessary actions when application becomes invisible. */
}

static void
app_resume(void *data)
{
    /* Take necessary actions when application becomes visible. */
}

static void
app_terminate(void *data)
{
    /* Release all resources. */
    ewk_shutdown();
}

static void
ui_app_lang_changed(app_event_info_h event_info, void *user_data)
{
    /*APP_EVENT_LANGUAGE_CHANGED*/
    char *locale = NULL;
    system_settings_get_value_string(SYSTEM_SETTINGS_KEY_LOCALE_LANGUAGE, &locale);
    elm_language_set(locale);
    free(locale);
    return;
}

int
main(int argc, char *argv[])
{
    appdata_s ad = {0,};
    memset(&ad, 0x00, sizeof(appdata_s));
    int ret = 0;

    ui_app_lifecycle_callback_s event_callback = {0,};
    memset(&event_callback, 0x00, sizeof(ui_app_lifecycle_callback_s));
    app_event_handler_h handlers[5] = {NULL, };


    event_callback.create = app_create;
    event_callback.terminate = app_terminate;
    event_callback.pause = app_pause;
    event_callback.resume = app_resume;
    event_callback.app_control = app_control;

    ui_app_add_event_handler(&handlers[APP_EVENT_LANGUAGE_CHANGED], APP_EVENT_LANGUAGE_CHANGED, ui_app_lang_changed, &ad);

    ret = ui_app_main(argc, argv, &event_callback, &ad);
    if (ret != APP_ERROR_NONE) {
        dlog_print(DLOG_ERROR, LOG_TAG, "app_main() is failed. err = %d", ret);
    }

    return ret;
}

清单文件：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<manifest xmlns="http://tizen.org/ns/packages" api-version="2.4" package="org.example.webviewexample" version="1.0.0">
    <profile name="mobile"/>
    <ui-application appid="org.example.webviewexample" exec="webviewexample" launch_mode="single" multiple="false" nodisplay="false" taskmanage="true" type="capp">
        <label>webviewexample</label>
        <icon>webviewexample.png</icon>
    </ui-application>
    <privileges>
        <privilege>http://tizen.org/privilege/network.get</privilege>
        <privilege>http://tizen.org/privilege/appmanager.launch</privilege>
        <privilege>http://tizen.org/privilege/location</privilege>
        <privilege>http://tizen.org/privilege/internet</privilege>
        <privilege>http://tizen.org/privilege/notification</privilege>
        <privilege>http://tizen.org/privilege/display</privilege>
        <privilege>http://tizen.org/privilege/camera</privilege>
        <privilege>http://tizen.org/privilege/externalstorage</privilege>
        <privilege>http://tizen.org/privilege/content.write</privilege>
    </privileges>
</manifest>

Answer 1

您可以查看 EWebKit: WebView API References 以获得与 Cookie 相关的 API 功能。

terms/functions 上 API 参考文献：

Ewk Cookie Manager、

Ewk_Cookie_Persistent_Storage、

ewk_cookie_manager_persistent_storage_set (),

Ewk_Cookie_Accept_Policy

Answer 2

谢谢您的解答，但我一直没能解决。我现在已经通过解决方法解决了它： 1. 通过 Javascript 我将 cookie 保存在 LocalStorage 中。 2. 启动应用程序时，我从 LocalStorage 读取数据并再次创建 cookie。

我就是这样。

Tizen 本机 Web 视图：如何在本机 Web 视图中存储和恢复 cookie？

Tizen native web view: How to store and restore cookies in a native web view?

webview

tizen

tizen-native-app