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AppInventor2添加超过10个屏幕会怎样？ - App Inventor 2 中文网 - 清泛IT...
...自文档：https://www.fun123.cn/reference/other/manyscreens.html
根据官方文档，建议屏幕数量不要超过10个，那么问了来了，实际上屏幕数量能否超过10个呢？超过10个会怎样？
试试就知道，我们来个压力测试，通过“复制屏幕”的功能，...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...2G，这是INT整数范围决定的。
…
最后一个求助方式就是官方论坛了，那里的国际友人建议我检查一下是不是索引不佳所致，死马当活马医，我激活了Profiler记录慢操作：
mongo> use <DB>
mongo> db.setProfilingLevel(1);
不过结果显示基...
HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...做更多的工作。
一、基础介绍
https://www.haproxy.org/ （官方网站）
https://www.haproxy.org/download/1.8/src/haproxy-1.8.14.tar.gz （下载地址）
http://cbonte.github.io/haproxy-dconv/1.8/configuration.html （文档Haproxy 1.8 文档）
HAProxy提供高可用性、负...
How to use the TextWatcher class in Android?
...sequence from start to start+count.
You must not change the text in the TextView from this method (by using myTextView.setText(String newText)).
onTextChanged(CharSequence s, int start, int before, int count)`
Similar to the beforeTextChanged method but called after the text changes.
The s parame...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...代品。目前已经在chrome、safari等知名软件中运用。
根据官方测试报告，ptmalloc在一台2.8GHz的P4机器上（对于小对象）执行一次malloc及free大约需要300纳秒。而TCMalloc的版本同样的操作大约只需要50纳秒。
小对象分配
tcmalloc为每...
How do you change text to bold in Android?
How do you change text/font settings in an Android TextView ?
19 Answers
19
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Factory Pattern. When to use factory methods?
...urn has a Kitchen and a LivingRoom object, and the LivingRoom object has a TV object inside as well.
The simplest method to achieve this is having each object create their children on their construct method, but if the properties are relatively nested, when your House fails creating you will proba...
What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?
...
It should be possible with setTypeface() and Typeface.create():
convertView.setTypeface(Typeface.create("sans-serif-light", Typeface.NORMAL));
See Docs:
Create a typeface object given a family name, and option style
information. If null is passed for the name, then the "default" font
...
Is there a way to comment out markup in an .ASPX page?
...uage="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ht_tv1.Default" %> --%>
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Blank._Default" %>
This won't.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx...
Cannot lower case button text in android studio
...
I have faced this issue in TextView. I have tried
android:textAllCaps="false",
mbutton.setAllCaps(false);
<item name="android:textAllCaps">false</item>
none of that worked for me. Finally I fed up and I have hard coded text, it is wor...