草庐IT

android - 添加安卓 :widgetCategory ="keyguard|home_screen" while still supporting older sdk

我正在尝试修改我的小部件,以便它支持放置在4.2锁屏上。但是我仍然想支持旧的SDK。我加了android:widgetCategory="keyguard|home_screen"到我在res/xml中的appwidget-provider,但是eclipse提示说“在android包中找不到属性widetCategory的资源标识符”如果我将minSdkVerion提高到17,一切正常,但我仍想支持旧的SDK。我已经尝试使用资源限定符创建一个separteres/xml-v17/mywidget.xml并只在那里添加标签,但错误仍然出现。感谢您的帮助。编辑:我想到了。使用res/xm

python :Configuration is still incorrect. Do you want to edit it again?

1、打开PyCharm,点击菜单栏的“File”->“Settings”。2、在弹出的“Settings”对话框中选择“Project:文件名”,其中“文件名”对应你打开的文件名称,在右侧选择“ProjectInterpreter”。  3、在“Settings”对话框的右侧区域有一个“ProjectInterpreter”下拉框,选择“ShowAll…”。 4、在弹出的“ProjectInterpreters”对话框的左上角,选择“+”按钮。 5、新窗口弹出“AddPythonInterpreter”,选择左侧的“VirtualenvEnvironment”,如果你安装了python会在右侧

node.js - MongoError : cannot establish topology capabilities as driver is still in process of connecting at Server. 功能

我正在尝试通过mongoose.connect连接到mongoDB,但我仍然收到错误:/Users/Documents/Business/01000100/node_modules/connect-mongo/lib/connect-mongo.js:133throwerr;^MongoError:cannotestablishtopologycapabilitiesasdriverisstillinprocessofconnectingatServer.capabilitiesauth_server.js:varexpress=require('express')varbody_pa

mysql - 完全奇怪 : deleting a MySQL user allows me to still login as that user with an empty password

在ArchLinux上使用MySQL5.5,当我创建一个带密码的localhost用户并赋予它对所有表的所有权限然后删除该用户时,我仍然可以以该用户身份登录而无需输入密码。重现步骤:#mysql-uroot-hlocalhost-pEnterpassword:mysql>createuser'test'@'localhost'identifiedby'testing123';mysql>grantallon*.*to'test'@'localhost'identifiedby'testing123';mysql>select*frommysql.userwhereuser='test'

php - 特殊行为 : AND without WHERE still works

我想知道为什么这个查询仍然可以完美运行。我认为WHERE子句总是必须以WHERE开头?SELECT`persons`.*FROM`persons`LEFTJOIN`team_memberships`ON(`team_memberships`.`participant`=`persons`.`id`)JOIN`teams`ON(`teams`.`id`=`team_memberships`.`team`)JOIN`departments`ON(`departments`.`id`=`teams`.`department`)JOIN`areas`ON(`areas`.`id`=`depar

docker Warning: Stopping docker.service, but it can still be activated by: docker.socket

一、报错原因  在搭建k8s环境时,涉及到docker版本和k8s版本不匹配,因此需要执行卸载docker操作,而卸载docker操作时,需要先执行systemctlstopdocker命令,因此触发了此警告信息!!!二、详细的报错信息Warning:Stoppingdocker.service,butitcanstillbeactivatedby:docker.socket三、如何解决?  在停止docker服务时,出现此警告信息,是因为docker在关闭状态下被访问会触发自动唤醒机制,非常人性化,即此时再执行任意的docker命令会直接启动docker服务~  如果希望docker不会触发

QProcess: Destroyed while process (“F:\\UPrecise1.5\\UPrecise.exe“) is still running.

出错原因:QProcess执行start()后没有进行正常close(),所以在执行析构函数的时候就会报这个错;并不一定向网上说的创建指针等等。。代码分析:UPreciseWindow::UPreciseWindow(QWidget*parent):QMainWindow(parent),ui(newUi::UPreciseWindow),m_pProcess(NULL){ui->setupUi(this);m_pProcess=newQProcess(this);connect(m_pProcess,&QProcess::started,this,&UPreciseWindow::on_pr

ios - 转换为 ARC 后出现 "deallocated while key value observers were still registered with it."错误

我正在使用这个类:https://github.com/alexleutgoeb/ALPickerView自从我转换为ARC后,我在点击pickerview几次后收到此错误:2011-10-1814:10:19.424MappingApp[3398:10d03]Aninstance0x73c7cd0ofclassCustomTapGestureRecognizerwasdeallocatedwhilekeyvalueobserverswerestillregisteredwithit.Observationinfowasleaked,andmayevenbecomemistakenly

IDEA 启动报错: Cannot connect to already running IDE instance. Exception : process xxxx is still running

 今早上班突然发现 IntelliJ突然无法使用 我的报错为: CannotconnecttoalreadyrunningIDEinstance.Exception:process 9,564isstillrunning翻译结果为:无法连接到已运行的IDE实例。异常:进程9564仍在运行我的理解就是CPU线程PID9564 已经存在现在直接打开任务管理器  查找PID为9564结束掉进程此时打开IDEA就没问题了,我的是因为飞秋的PID为9564结束掉就能启动IDEA了。

ios - 网络电话应用 ios8 : is pushkit still best practice?

我正在开发一个在ios9下需要可靠推送消息(如任何voip)的应用程序。这里说,对于IOS8+,应该使用apns(registerForRemoteNotifications):https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIApplication_Class/index.html#//apple_ref/occ/instm/UIApplication/setKeepAliveTimeout:handler:在OptimizeVOIPApps文档中,Pushkit是首选:https://de