Posts made by zhumingqi

@kuriko OKOK

我在UIFlow2.3.3里使用M5GFX实现最简单的图片切换，频繁切换后发现，图片无法再切换，但系统还在运行，只是不能切换图片，怀疑应该是图片组件崩溃了。我尝试用gc.collect强制回收也没有效果，gc.mem_free监测发现内存一直持续减少。以下是我的UIFlow设计和相应的代码：
import os, sys, io, gc
import M5
from M5 import *

ImageSwitchFlag = None

def GcCollectAndPrint():
global ImageSwitchFlag
gc.collect()
print(gc.mem_free())
pass

def btnA_wasClicked_event(state):
global ImageSwitchFlag
if ImageSwitchFlag == 0:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBacklight.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 1
elif ImageSwitchFlag == 1:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBT.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 0

def setup():
global ImageSwitchFlag

M5.begin()
Widgets.fillScreen(0x000000)

BtnA.setCallback(type=BtnA.CB_TYPE.WAS_CLICKED, cb=btnA_wasClicked_event)

ImageSwitchFlag = 0

def loop():
global ImageSwitchFlag
M5.update()

if name == 'main':
try:
setup()
while True:
loop()
except (Exception, KeyboardInterrupt) as e:
try:
from utility import print_error_msg
print_error_msg(e)
except ImportError:
print("please update to latest firmware")******

b442ffec-d9ce-4445-898c-4b8ffc3caa82-image.png

Today, I updated the UIFlow to V2.3.4, and burned V2.3.4 firmware as well. Then I tested that image component again with M5GFX in UIFlow 2.3.4. But the issue still exists. After I switch two JPG pics with one image component for sometime, the memory will reduced continiously. Finally, the system will break out. And I try to use gc.collect() after every drawImage(), but it's not useful.
Here is my design and python code:
import os, sys, io, gc
import M5
from M5 import *

ImageSwitchFlag = None

def GcCollectAndPrint():
global ImageSwitchFlag
gc.collect()
print(gc.mem_free())
pass

def btnA_wasClicked_event(state):
global ImageSwitchFlag
if ImageSwitchFlag == 0:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBacklight.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 1
elif ImageSwitchFlag == 1:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBT.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 0

def setup():
global ImageSwitchFlag

M5.begin()
Widgets.fillScreen(0x000000)

BtnA.setCallback(type=BtnA.CB_TYPE.WAS_CLICKED, cb=btnA_wasClicked_event)

ImageSwitchFlag = 0

def loop():
global ImageSwitchFlag
M5.update()

if name == 'main':
try:
setup()
while True:
loop()
except (Exception, KeyboardInterrupt) as e:
try:
from utility import print_error_msg
print_error_msg(e)
except ImportError:
print("please update to latest firmware")******

I tested more UI design. And I found that the memory leak only happens when I use image component and switch images frequently. Is that a UIFlow2.3.3 bug or my design is incorrect?

I tested more UI design. And I found that the memory leak only happens when I use image component and switch images frequently. Is that a UIFlow2.3.3 bug or my design is incorrect?

I used UIFlow2 to devleop a simple UI demo, and I monitor the free memory with gc.mem_free(). I found the free memory reduced continiously though I called gc.collect() every loop. Finally, the UI can not update again, but the loop still was running.

I used UIFlow2.3.3 to develop a simple UI demo. There is only one image widget to switch 2 JPG images every second. When I monitor the memory with gc.mem_free, I found the memory reduced continiously. And finally, the image switching was stop, but the loop was running. I wonder how to solve the UI memory leak? Here is my python code:
import os, sys, io
import M5
from M5 import *
import time

image0 = None
oldData14 = None

ImgFlag = None

def setup():
global image0, oldData14, ImgFlag

M5.begin()
Widgets.fillScreen(0x000000)
image0 = Widgets.Image("/flash/res/img/default.jpg", 0, 0, scale_x=1, scale_y=1)

image0.setImage("/flash/res/img/RotaryBGBacklight.jpg")
ImgFlag = 0

def loop():
global image0, oldData14, ImgFlag
M5.update()
if (time.localtime())[5] != oldData14:
PrintFreeMem()
oldData14 = (time.localtime())[5]
if ImgFlag == 0:
image0.setImage("/flash/res/img/RotaryBGBT.jpg")
ImgFlag = 1
elif ImgFlag == 1:
image0.setImage("/flash/res/img/RotaryBGBacklight.jpg")
ImgFlag = 0
else:
pass

def PrintFreeMem():
print("Free mem:", gc.mem_free())

if name == 'main':
try:
setup()
while True:
loop()
except (Exception, KeyboardInterrupt) as e:
try:
from utility import print_error_msg
print_error_msg(e)
except ImportError:
print("please update to latest firmware")

And my UIFlow2 design:

@kuriko It was recover. Thank you.

This morning I can save project normally. This afternoon I try to delete some images from project files, but I failed. And then I try to save the project, also failed. Finally, I found that I can not operate anything successfully online. I just save the project to local firstly.