minor update

README.md

@@ -14,9 +14,7 @@ Current codebase is fork from [dde-dock#39c1a6b](https://github.com/linuxdeepin/
 
 ### Usage
 
-You need do `apt build-dep dde-dock` first.
-
-You also need to install `dde-dock-dev` package: `apt install dde-dock-dev` .
+We assume you already enabled a `deb-src` source in your `/etc/apt/sources.list` thus you can use `apt build-dep <pkg-name>` to install build depts. Then you need do `apt build-dep dde-dock` first, and install `dde-dock-dev` package by doing `apt install dde-dock-dev`. Of course you can also install the build depts manually if you like.
 
 To compile and run:
 

datetimeplugin.cpp

@@ -27,6 +27,8 @@
 #include <QLabel>
 #include <QDebug>
 
+#define PLUGIN_STATE_KEY "enable"
+
 DatetimePlugin::DatetimePlugin(QObject *parent)
  : QObject(parent),
 
@@ -70,9 +72,9 @@ void DatetimePlugin::init(PluginProxyInterface *proxyInter)
 
 void DatetimePlugin::pluginStateSwitched()
 {
- m_centralWidget->setEnabled(!m_centralWidget->enabled());
+ m_proxyInter->saveValue(this, PLUGIN_STATE_KEY, pluginIsDisable());
 
- if (m_centralWidget->enabled()) {
+ if (!pluginIsDisable()) {
  m_proxyInter->itemAdded(this, pluginName());
  } else {
  m_proxyInter->itemRemoved(this, pluginName());
@@ -81,7 +83,7 @@ void DatetimePlugin::pluginStateSwitched()
 
 bool DatetimePlugin::pluginIsDisable()
 {
- return !m_centralWidget->enabled();
+ return !(m_proxyInter->getValue(this, PLUGIN_STATE_KEY, true).toBool());
 }
 
 int DatetimePlugin::itemSortKey(const QString &itemKey)