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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...too many of orphaned sockets”。
另外，服务端需要打开大量的文件描述符，比如200万个，但我们设置最大文件描述符限制时，会遇到一些问题，我们在后面详细讲解。
2. 客户端的准备
由于我们需要构建大量的客户端，而我们知道...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...事不太好，我们决定把这儿的统计脚本独立出来，并放到文件域，如：www.mysite_file.com/track/site_a.js，然后把这个js的引用放到全局的页脚：
<script type=”text/javascript” src=”www.mysite_file.com/track/site_a.js”></script>
这样后边要修改...
“Insufficient Storage Available” even there is lot of free space in device memory
...ated to storage shortage (2.)
It happens on the console (pm install file.apk), with Google Play, other markets and manual GUI-install (for example, “clicking” on a downloaded APK file); it is not a download issue, ...
Packages end up entirely on the /data partition -or- mostly on the SD card (...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...建lua运行上下文
lua_State* luaL_newstate(void) ;
//加载lua脚本文件
int luaL_loadfile(lua_State *L, const char *filename);
lua和c/c++的数据交互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取数据，栈中的每个数据通过索引值进...
Replace selector images programmatically
...ding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/top_bar_default" >
</item>
<item android:id="@+id/nav_icons" android:bottom="0dip">
<level-list xmlns:android="http://schemas.an...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...y "sync gradle file".
Native multi-dex
One of the slowest steps of the apk build is converting java bytecode into single dex file. Enabling native multidex (minSdk 21 for debug builds only) will help the tooling to reduce an amount of work (check answer from Aksel Willgert below).
Dependencies
...
LEGO EV3 机器人传感器面板 · App Inventor 2 中文网
...面板
项目概述
下载
示例项目文件：
EV3 传感器介绍
硬件要求
传感器连接
App Inventor 组件设置
设计器界面
组件列表
传感...
What does the LayoutInflater attachToRoot parameter mean?
...ivity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
button.xml
<Button xmlns:android...
Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified?
...ng="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
Added into this container is a separate TextView, visible as small ...
How can I style an Android Switch?
... Android sources:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false" android:drawable="@drawable/switch_thumb_disabled_holo_light" />
<item android:state_pressed="true" android:drawable="@drawable/switch_thumb_pressed_h...