How to implement Facebook sharing in a Tizen Native app

Problem Understanding

The user wants to implement content sharing functionality from their Tizen Native app to Facebook using the Facebook Tizen app. This requires:

• Launching the Facebook app from their application
• Passing content (text/images) to share
• Handling scenarios where the Facebook app isn't available

Solution Methods

1. Using App Control API: The App Control API allows you to launch other applications and pass data between them. For Facebook sharing, you can use the app_control API to:

   • Create an app control request
   • Set the operation type to share
   • Add the content to be shared
   • Launch the Facebook app

2. Checking for Facebook app availability: Before attempting to share, check if the Facebook app is installed using app_manager_get_app_info().

3. Fallback option: If Facebook app isn't available, consider implementing web-based sharing as an alternative.

Code Examples

// Example code for sharing text to Facebook
#include <app_control.h>
#include <app_manager.h>

void share_to_facebook(const char* text) {
    app_control_h app_control = NULL;
    app_control_create(&app_control);
    
    // Set operation type
    app_control_set_operation(app_control, APP_CONTROL_OPERATION_SHARE_TEXT);
    
    // Set text to share
    app_control_add_extra_data(app_control, APP_CONTROL_DATA_TEXT, text);
    
    // Set target app ID (Facebook)
    app_control_set_app_id(app_control, "com.facebook.katana");
    
    // Launch the app
    app_control_send_launch_request(app_control, NULL, NULL);
    
    app_control_destroy(app_control);
}

// Check if Facebook app is installed
bool is_facebook_installed() {
    app_info_h info;
    int ret = app_manager_get_app_info("com.facebook.katana", &info);
    if (ret == APP_MANAGER_ERROR_NONE) {
        app_info_destroy(info);
        return true;
    }
    return false;
}

Additional Tips

• For sharing images, use APP_CONTROL_OPERATION_SHARE and add the image path using APP_CONTROL_DATA_PATH.
• Test your implementation on different Tizen versions as behavior might vary.
• Consider adding error handling for cases where sharing fails.
• For more details, refer to the official documentation on App Control API at samsungtizenos.com.