unload method
卸载扩展
Implementation
@override
unload() {
super.unload();
eval('''
delete __FLUJS_setIntervalCount__;
__FLUJS_setIntervalCount__ = undefined;
delete __FLUJS_setIntervalCallbacks;
__FLUJS_setIntervalCallbacks = undefined;
delete setInterval;
setInterval = undefined;
delete clearInterval;
clearInterval = undefined;
''', sourceURL: "cleanIntervalJSCode");
removeInterface(__FLUJS_SetInterval__);
removeInterface(__FLUJS_ClearInterval__);
}