SpeedTest app source

#include <pebble.h>

Window* window;
TextLayer* text;

char *itoa(int num)
{
    if (num == 0)
        return "0";
    static char buff[20] = {};
    int i = 0, temp_num = num, length = 0;
    char *string = buff;
    if(num >= 0) {
        // count how many characters in the number
        while(temp_num) {
            temp_num /= 10;
            length++;
        }
        // assign the number to the buffer starting at the end of the
        // number and going to the begining since we are doing the
        // integer to character conversion on the last number in the
        // sequence
        for(i = 0; i < length; i++) {
            buff[(length-1)-i] = '0' + (num % 10);
            num /= 10;
        }
        buff[i] = '\0'; // can't forget the null byte to properly end our string
    }
    else
        return "ER";
    return string;
}

void received_data(DictionaryIterator *received, void *context) {

    int counter = dict_find(received, 0)->value->uint8;

    text_layer_set_text(text, itoa(counter));

    DictionaryIterator* dictionary;
    app_message_outbox_begin(&dictionary);
    dict_write_uint8(dictionary, 0, counter);
    dict_write_uint32(dictionary, 1, dict_find(received, 1)->value->uint32);
    app_message_outbox_send();

    light_enable_interaction();
}

void button_clicked()
{
    app_comm_set_sniff_interval(SNIFF_INTERVAL_REDUCED);
    app_comm_set_sniff_interval(SNIFF_INTERVAL_REDUCED);

    DictionaryIterator* dictionary;
    app_message_outbox_begin(&dictionary);
    dict_write_uint8(dictionary, 0, 0);
    dict_write_uint32(dictionary, 1, 0);
    app_message_outbox_send();

    app_comm_set_sniff_interval(SNIFF_INTERVAL_NORMAL);
}

void click_config_provider(void* context) {
    window_single_click_subscribe(BUTTON_ID_SELECT, button_clicked);
}



int main() {
    app_message_register_inbox_received(received_data);
    app_message_open(124, 50);

    window = window_create();

    Layer* topLayer = window_get_root_layer(window);

    text = text_layer_create(GRect(5,5,100,100));
    text_layer_set_font(text, fonts_get_system_font(FONT_KEY_DROID_SERIF_28_BOLD));
    layer_add_child(topLayer, (Layer*) text);

    window_set_click_config_provider(window, (ClickConfigProvider) click_config_provider);

    window_stack_push(window, true /* Animated */);

    app_event_loop();
}