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Description
I have a window, where it is required to enter a number password before one can procede. I use a buttonmatrix (for the numbers), and a seperate button to handle deletion of characters. As it is a password i have enabled the pwd mode in the textarea, but when i then try to delete a charcter i get some weird results. Basically it seems to work just fine without password mode switched on, but with the password mode on I get these wierd results when i delete characters.
What MCU/Processor/Board and compiler are you using?
As the video shows im using the simulator on a windows, right now, though i hardly think it’s the problem.
What do you want to achieve?
I would like to have a working password “system” in the sense that i can delete characters with password mode on.
What have you tried so far?
I have tried to run it without the password mode set to true, and then i couldn’t crash/break it, so thats why i’m so stuck
Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.
I belive this is all the relevant code
btnm1 = lv_btnmatrix_create(winPin, NULL);
lv_btnmatrix_set_map(btnm1, btnm_map);
lv_obj_add_style(btnm1, LV_BTNMATRIX_PART_BG, &style_btnm_bg);
lv_obj_add_style(btnm1, LV_BTNMATRIX_PART_BTN, &style_btnmatrix_btn);
lv_obj_set_size(btnm1, 170, 226);
lv_btnmatrix_set_btn_ctrl(btnm1, 9, LV_BTNMATRIX_CTRL_HIDDEN );
lv_btnmatrix_set_btn_ctrl(btnm1, 11, LV_BTNMATRIX_CTRL_HIDDEN);
lv_obj_align(btnm1, NULL, LV_ALIGN_CENTER, 0, 15);
lv_obj_set_event_cb(btnm1, btnmatrix_event_handler);
BSbtn = lv_imgbtn_create(winPin, NULL);
lv_imgbtn_set_src(BSbtn, LV_BTN_STATE_RELEASED, &BackspaceIcon);
lv_imgbtn_set_src(BSbtn, LV_BTN_STATE_PRESSED, &BackspaceIconPR);
lv_obj_set_event_cb(BSbtn, btnmatrix_event_handler);
lv_obj_align(BSbtn, NULL, LV_ALIGN_CENTER, 55, 100);
printf("PinWin B\n");
ta = lv_textarea_create(winPin, NULL);
lv_obj_set_size(ta, 160, 40);
lv_obj_add_style(ta, LV_TEXTAREA_PART_BG, &style_text_placeholder);
lv_obj_add_style(ta, LV_TEXTAREA_PART_PLACEHOLDER, &style_text_placeholder);
lv_textarea_set_cursor_click_pos(ta, true);
lv_textarea_set_max_length(ta, 4);
lv_obj_align(ta, winPin, LV_ALIGN_IN_TOP_MID, 0, 10);
lv_textarea_set_text(ta, "");
lv_textarea_set_accepted_chars(ta, "1234567890");
lv_textarea_set_placeholder_text(ta, "____");
lv_textarea_set_one_line(ta, true);
lv_textarea_set_cursor_hidden(ta, false);
lv_textarea_set_text_sel(ta, false);
lv_textarea_set_pwd_mode(ta, true);
printf("PinWin C\n");
The button matrix handler including dealing with clicks on the deletion button (BSbtn)
static void btnmatrix_event_handler(lv_obj_t* obj, lv_event_t event)
{
if (event != LV_EVENT_CLICKED) return;
if (obj == NULL) return;
if (obj == BSbtn) {
lv_textarea_set_cursor_pos(ta, LV_TEXTAREA_CURSOR_LAST);
lv_textarea_del_char(ta);
printf("%s\n", lv_textarea_get_text(ta));
return;
} // endif
if (obj != BSbtn && lv_btnmatrix_get_active_btn_text(btnm1) != NULL) {
lv_textarea_add_text(ta, lv_btnmatrix_get_active_btn_text(btnm1));
printf("%s\n", lv_textarea_get_text(ta));
//if the entered numbers are correct
if (strcmp(lv_textarea_get_text(ta), "1234") == 0) {
printf("%s\n", "Bingo");
lv_obj_del(winPin);
lv_obj_del(winCard);
};
} // end if
}
/*You code here*/
Screenshot and/or video
When a character is pressed or deleted the textareas text is printed to the left:
