flutter_leak_canary

Description:

flutter leak canary

flutter_leak_canary #
This is a plugin that can detect whether a certain class has a memory leak. It is similar to Android's LeakCanary.
step 1 #
It needs to be configured as VsCode or Android Studio to configure the running parameters "--disable-dds"
"configurations": [
{
...
"args": [
"--disable-dds"
],
"type": "dart"
},

]
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Or

step 2 #
add LeakCanaryStateMixin or LeakCanarySimpleMixin to detect
class _WeakPageState extends State<WeakPage> with LeakCanaryStateMixin {
//...
}

or

class TestModel2 with LeakCanarySimpleMixin {


init() {
//...
watch();
//...
}

void dispose() {
//...
try2Check();
//..
}
}


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example: #

class WeakPage extends StatefulWidget {
const WeakPage({super.key});

@override
State<WeakPage> createState() => _WeakPageState();
}

class TestModel with LeakCanarySimpleMixin {
Timer? timer;
int count = 0;
init() {
watch();
timer = Timer.periodic(Duration(seconds: 1), (timer) {
count++;
print("TestModel $count");
});
}

void dispose() {
// timer?.cancel();
try2Check();
}
}

class TestModel2 with LeakCanarySimpleMixin {
Timer? timer;
int count = 0;
init() {
watch();
}

void dispose() {
timer?.cancel();
timer = null;
try2Check();
}
}

class _WeakPageState extends State<WeakPage> with LeakCanarySta
TestModel? test = TestModel();
TestModel2? test2 = TestModel2();
Timer? timer;
int count = 0;
@override
void initState() {
super.initState();
test?.init();
test2?.init();
timer = Timer.periodic(Duration(seconds: 1), (timer) {
count++;
print("_WeakPageState ${count}");
});
}

@override
void dispose() {
// TODO: implement dispose
super.dispose();
//timer.cancel();
test?.dispose();
test2?.dispose();
test = null;
test2 = null;
}

@override
Widget build(BuildContext context) {
return Material(
child: Center(
child: Container(
child: InkWell(
onTap: () {
Navigator.of(context).pop();
},
child: Text('back')),
),
),
);
}
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