Monkey

A simple monkey test. Use random input to stress test the application.

Usage

Enable LV_USE_MONKEY in lv_conf.h.

First configure monkey, use lv_monkey_config_t to define the configuration structure, set the type (check input devices for the supported types), and then set the range of period_range and input_range, the monkey will output random operations at random times within this range. Call lv_monkey_create to create monkey. Finally call lv_monkey_set_enable(monkey, true) to enable monkey.

If you want to pause the monkey, call lv_monkey_set_enable(monkey, false). To delete the monkey, call lv_monkey_del(monkey).

Note that input_range has different meanings in different type:

  • LV_INDEV_TYPE_POINTER No effect, click randomly within the pixels of the screen resolution.

  • LV_INDEV_TYPE_ENCODER The minimum and maximum values ​​of enc_diff.

  • LV_INDEV_TYPE_BUTTON The minimum and maximum values ​​of btn_id. Use lv_monkey_get_indev() to get the input device, and use lv_indev_set_button_points() to map the key ID to the coordinates.

  • LV_INDEV_TYPE_KEYPAD No effect, Send random Keys.

Example

Touchpad monkey example

C code  

 GitHub
#include "../../lv_examples.h"
#if LV_USE_MONKEY && LV_BUILD_EXAMPLES

void lv_example_monkey_1(void)
{
    /*Create pointer monkey test*/
    lv_monkey_config_t config;
    lv_monkey_config_init(&config);
    config.type = LV_INDEV_TYPE_POINTER;
    config.period_range.min = 10;
    config.period_range.max = 100;
    lv_monkey_t * monkey = lv_monkey_create(&config);

    /*Start monkey test*/
    lv_monkey_set_enable(monkey, true);
}

#endif

MicroPython code  

 GitHub Simulator
Error encountered while trying to open /home/runner/work/lvgl/lvgl/examples/others/monkey/lv_example_monkey_1.py

Encoder monkey example

C code  

 GitHub
#include "../../lv_examples.h"
#if LV_USE_MONKEY && LV_BUILD_EXAMPLES

void lv_example_monkey_2(void)
{
    /*Create encoder monkey test*/
    lv_monkey_config_t config;
    lv_monkey_config_init(&config);
    config.type = LV_INDEV_TYPE_ENCODER;
    config.period_range.min = 50;
    config.period_range.max = 500;
    config.input_range.min = -5;
    config.input_range.max = 5;
    lv_monkey_t * monkey = lv_monkey_create(&config);

    /*Set the default group*/
    lv_group_t * group = lv_group_create();
    lv_indev_set_group(lv_monkey_get_indev(monkey), group);
    lv_group_set_default(group);

    /*Start monkey test*/
    lv_monkey_set_enable(monkey, true);
}

#endif

MicroPython code  

 GitHub Simulator
Error encountered while trying to open /home/runner/work/lvgl/lvgl/examples/others/monkey/lv_example_monkey_2.py

Button monkey example

C code  

 GitHub
#include "../../lv_examples.h"
#if LV_USE_MONKEY && LV_BUILD_EXAMPLES

void lv_example_monkey_3(void)
{
    static lv_point_t btn_points[3];
    lv_coord_t hor_res = LV_HOR_RES;

    /*Create button monkey test*/
    lv_monkey_config_t config;
    lv_monkey_config_init(&config);
    config.type = LV_INDEV_TYPE_BUTTON;
    config.period_range.min = 50;
    config.period_range.max = 500;
    config.input_range.min = 0;
    config.input_range.max = sizeof(btn_points) / sizeof(lv_point_t) - 1;
    lv_monkey_t * monkey = lv_monkey_create(&config);

    /*Set the coordinates bound to the button*/
    btn_points[0].x = hor_res / 4;
    btn_points[0].y = 10;
    btn_points[1].x = hor_res / 2;
    btn_points[1].y = 10;
    btn_points[2].x = hor_res * 3 / 4;
    btn_points[2].y = 10;

    lv_indev_set_button_points(lv_monkey_get_indev(monkey), btn_points);

    /*Start monkey test*/
    lv_monkey_set_enable(monkey, true);
}

#endif

MicroPython code  

 GitHub Simulator
Error encountered while trying to open /home/runner/work/lvgl/lvgl/examples/others/monkey/lv_example_monkey_3.py

API

Typedefs

typedef struct _lv_monkey lv_monkey_t

Functions

void lv_monkey_config_init(lv_monkey_config_t *config)

Initialize a monkey config with default values

Parameters

config -- pointer to 'lv_monkey_config_t' variable to initialize

lv_monkey_t *lv_monkey_create(const lv_monkey_config_t *config)

Create monkey for test

Parameters

config -- pointer to 'lv_monkey_config_t' variable

Returns

pointer to the created monkey

lv_indev_t *lv_monkey_get_indev(lv_monkey_t *monkey)

Get monkey input device

Parameters

monkey -- pointer to a monkey

Returns

pointer to the input device

void lv_monkey_set_enable(lv_monkey_t *monkey, bool en)

Enable monkey

Parameters

  • monkey -- pointer to a monkey

  • en -- set to true to enable

bool lv_monkey_get_enable(lv_monkey_t *monkey)

Get whether monkey is enabled

Parameters

monkey -- pointer to a monkey

Returns

return true if monkey enabled

void lv_monkey_set_user_data(lv_monkey_t *monkey, void *user_data)

Set the user_data field of the monkey

Parameters

  • monkey -- pointer to a monkey

  • user_data -- pointer to the new user_data.

void *lv_monkey_get_user_data(lv_monkey_t *monkey)

Get the user_data field of the monkey

Parameters

monkey -- pointer to a monkey

Returns

the pointer to the user_data of the monkey

void lv_monkey_del(lv_monkey_t *monkey)

Delete monkey

Parameters

monkey -- pointer to monkey

struct lv_monkey_config_t

Public Members

lv_indev_type_t type

< Input device type Monkey execution period

uint32_t min
uint32_t max
struct lv_monkey_config_t::[anonymous] period_range

The range of input value

int32_t min
int32_t max
struct lv_monkey_config_t::[anonymous] input_range