另类操作系统 三星Tizen2.4测试版SDK已经向开发者推送下载

另类操作系统 三星Tizen2.4测试版SDK已经向开发者推送下载

从本篇文章中，你将会了解到如何下载、安装并使用三星Tizen2.4测试版SDK进行开发。

下载

1. 访问三星的开发者网站（https://developer.tizen.org/development/sdk/download）。
2. 在“Tizen Studio”页面选择合适的平台进行下载，Windows、macOS和Ubuntu都可下载，这里以Windows为例。
3. 点击下载链接，等待下载完成。

安装

1. 双击下载的安装程序，按照提示进行安装。
2. 安装完后启动Tizen Studio。

创建新项目

1. 启动Tizen Studio后，点击“File” -> “New” -> “Tizen Project” -> “Tizen Wearable 2.3 Native Application”。
2. 在弹出的对话框中填写项目信息，例如应用名称、包名、版本号等。
3. 点击“Finish”进行创建。

运行项目

1. 点击“Run” -> “Tizen Emulator Manager”，在弹出的窗口中创建一个新的模拟器。
2. 选择所要运行的模拟器，点击“Run”进行运行。
3. 在模拟器中选择你创建的项目并运行。

示例 1

下面通过一个简单的示例代码来展示在Tizen Studio中如何编写一个简单的应用：

#include <app.h>
#include <Elementary.h>

int main(int argc, char *argv[]) {
    ui_app_lifecycle_callback_s event_callback = {0,};
    app_event_handler_h handlers[5] = {NULL, };
    int ret;

    ui_app_add_event_handler(&handlers[APP_EVENT_LOW_BATTERY], APP_EVENT_LOW_BATTERY, app_event_callback, &event_callback);
    ui_app_add_event_handler(&handlers[APP_EVENT_LOW_MEMORY], APP_EVENT_LOW_MEMORY, app_event_callback, &event_callback);
    ui_app_add_event_handler(&handlers[APP_EVENT_DEVICE_ORIENTATION_CHANGED], APP_EVENT_DEVICE_ORIENTATION_CHANGED, app_event_callback, &event_callback);
    ui_app_add_event_handler(&handlers[APP_EVENT_LANGUAGE_CHANGED], APP_EVENT_LANGUAGE_CHANGED, app_event_callback, &event_callback);
    ui_app_add_event_handler(&handlers[APP_EVENT_REGION_FORMAT_CHANGED], APP_EVENT_REGION_FORMAT_CHANGED, app_event_callback, &event_callback);

    event_callback.create = create_cb;
    event_callback.terminate = terminate_cb;
    event_callback.pause = pause_cb;
    event_callback.resume = resume_cb;
    event_callback.app_control = app_control_cb;
    event_callback.ui_app_lang_changed = ui_app_lang_changed_cb;
    event_callback.ui_app_orient_changed = ui_app_orient_changed_cb;
    event_callback.ui_app_region_changed = ui_app_region_changed_cb;

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

    return ret;
}

static bool create_cb(void *data) {
    ui_app_lifecycle_callback_s *callbacks = data;

    /* Hook to take necessary actions before main event loop starts
        Initialize UI resources
        Open a connection to the sensor manager
        Register callbacks for sensor events if it is necessary
    */

    return true;
}

static void terminate_cb(void *data) {
    /* Release all resources. */
}

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

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

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

static void ui_app_lang_changed_cb(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);
}

static void ui_app_orient_changed_cb(app_event_info_h event_info, void *user_data) {
    /* APP_EVENT_DEVICE_ORIENTATION_CHANGED */
}

static void ui_app_region_changed_cb(app_event_info_h event_info, void *user_data) {
    /* APP_EVENT_REGION_FORMAT_CHANGED */
}

示例 2

下面通过一个简单的图形化界面来展示如何在Tizen Studio中创建一个简单的用户界面：

#include <app.h>
#include <Elementary.h>

enum {
    SQUARE = 0,
    CIRCLE = 1,
    RECTANGLE = 2,
    ITEM_LAST,
};

static const char *_icon_path[] = {
    "images/ico_square.png",
    "images/ico_circle.png",
    "images/ico_rectangle.png",
};

typedef struct appdata {
    Evas_Object *win;
    Evas_Object *conform;
    Evas_Object *layout;
    Evas_Object *list;
} appdata_s;

static void win_delete_request_cb(void *data, Evas_Object *obj, void *event_info) {
    ui_app_exit();
}

static void item_selected_cb(void *data, Evas_Object *obj, void *event_info) {
    appdata_s *ad = data;
    int index = (int)elm_object_item_data_get(event_info);

    switch (index) {
        case SQUARE:
            dlog_print(DLOG_INFO, "mytag", "Square is selected!");
            break;
        case CIRCLE:
            dlog_print(DLOG_INFO, "mytag", "Circle is selected!");
            break;
        case RECTANGLE:
            dlog_print(DLOG_INFO, "mytag", "Rectangle is selected!");
            break;
        default:
            break;
    }
}

static void create_base_gui(appdata_s *ad) {
    /* Window */
    elm_config_use_sync_set(EINA_TRUE);
    ad->win = elm_win_util_standard_add(PACKAGE, PACKAGE);
    elm_win_autodel_set(ad->win, EINA_TRUE);
    elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
    evas_object_smart_callback_add(ad->win, "delete,request", win_delete_request_cb, NULL);

    /* Conformant */
    ad->conform = elm_conformant_add(ad->win);
    evas_object_size_hint_weight_set(ad->conform, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
    elm_win_resize_object_add(ad->win, ad->conform);
    evas_object_show(ad->conform);

    /* Create a list view */
    ad->list = elm_list_add(ad->conform);
    evas_object_show(ad->list);

    elm_list_item_append(ad->list, "Square", NULL, NULL, item_selected_cb, ad);
    elm_list_item_append(ad->list, "Circle", NULL, NULL, item_selected_cb, ad);
    elm_list_item_append(ad->list, "Rectangle", NULL, NULL, item_selected_cb, ad);

    /* Layout */
    ad->layout = elm_layout_add(ad->conform);
    elm_layout_theme_set(ad->layout, "layout", "application", "default");
    evas_object_size_hint_weight_set(ad->layout, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
    elm_object_content_set(ad->conform, ad->layout);

    elm_object_part_content_set(ad->layout, "elm.swallow.content", ad->list);

    /* Show window */
    evas_object_show(ad->win);
}

int main(int argc, char *argv[]) {

    appdata_s ad = {NULL,};

    ui_app_lifecycle_callback_s event_callback = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
    app_event_handler_h handlers[5] = {NULL, };
    int ret = 0;

    /* Hook to take necessary actions before main event loop starts
        Initialize UI resources
        Open a connection to the sensor manager
        Register callbacks for sensor events if it is necessary
    */

    //create_base_gui(&ad);
    create_base_gui(&ad);

    ret = ui_app_main(argc, argv, &event_callback, &ad);

    /* Hook to take necessary actions before main event loop starts
        Release all resources
    */

    return ret;
}

以上就是下载、安装和使用Tizen Studio开发三星Tizen2.4测试版SDK的完整攻略，通过这些步骤，你可以轻松上手开发Tizen应用。