Programmer Think

This is my layout code; <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:text="@string/welcome" android:id="@+id/TextV ...

The temporal Query function is to retrieve the time information stored in the element table through the time range set by the user, so as to obtain the operation of elements in a specific temporal range. In this case, taking typhoon data as an example, the temporal Query conditions are constructed through the set time range, th ...

Does node.js have a built-in base64 encoding? I said this because crypto final() only outputs hex, binary, or ascii data.For example: var cipher = crypto.createCipheriv('des-ede3-cbc', encryption_key, iv); var ciph = cipher.update(plaintext, 'utf8', 'hex'); ciph += cipher.final('hex'); var decipher = crypto.createDecipheriv('des-ede3-cbc ...

Catalog Official analysis Examples of bloggers Official analysis QXmlStreamReader::qualifiedName() Returns the restricted name of the StartElement or EndElement; The restriction name is the original name of the element in the XML data. It has a prefix and a suffix. The element of the suffix is called the local name. Becaus ...

I created my application, which is in pixels in height and width, for a 480x800 resolution Pantech device. I need to change the height and width of the G1 device. I think converting it to dp will solve the problem and provide the same solution for both devices. Is there an easy way to convert pixels to dp? What's your suggestion? #1 ...

1. url:  https://weibo.com/ 2. target: Login   3. Analysis. Due to the need to fill in the verification code, this article only analyzes the part of cracking the user name and password encryption, without verification code identification. 3.1 according to the old rule, F12, enter an account password and click login to see what requests have be ...

The principle will not be introduced. You can see another one of mine Deeply understand the operation principle of blockchain through an App Demo demonstration The code is only the simplest. It simply implements the definition of a block and the connection between blocks. There is no p2p, incentive or consensus. Important da ...

[TOC] Introduction The data generated in the process of application running is stored in memory at first. If you want to save it permanently, you must save it in the hard disk. If the application wants to operate the hardware, it must pass the operating system, and the file is the virtual concept that the operating system provides to the appli ...

Put the finished product drawing first: The user's registration interface is actually composed of several input boxes (EditText) and TextView. The key point is that the entered phone number and email can be recognized and displayed in the way of hyperlink. After clicking, the corresponding software will be opened. In fact, i ...

The main functions are as follows: 1. Call api interface to get json data; 2. Convert json data to a csv file; 3. Convert each line of data in the csv file to a single xml file; 4. Package every 5 XML files The modules used are:        csv,xml,threading,tarfile,queue Daemons         memorandum: Multi thread communication can use a safe q ...