Android

Recently I completed a project. Because I am a newbie, I have been stuck in the performance problem of listview over the past few days. There will always be a choppy phenomenon, and the pull-down refresh will also feel a little choppy. I have

The Dex file is a java binary file running on delvik on Android. If you are interested in the content and the developer has not published the source code, you can decompile the dex file using the following method:   1. Decompress system. img   Use

1. android: layout_width = "0.0dip" Description: The display size is 0. That is, it is not displayed. If it is an advertisement or other pop-up window, the command is set to 0.0dip and will not be displayed on the program page. 2. Relative layout:

Static and cut symbol table In order to prevent attackers from clarifying their program's sensitive business logic, we tried to raise the inverse threshold.This article introduces a Defense Technique-use the static keyword to remove the function

After the dk-build Environment is set up, we need to try to see if the environment is actually set up. ① Open ecplise and create a new project JNITest After the creation, compile a local method named sayHelloWorldFromC () in MainActivity (this is

I was idle recently. I looked for the source code on the Internet and suddenly found a fast development framework developed by a Chinese technical expert Andbase. It took me a day to study the source code and how to use it, now we will introduce you

You can use the AlertDialog. Builder. setItems method to display a String array as a list in the dialog box. The Code is as follows: String provinces [] = "Liaoning Province", "Shandong Province", "Hebei Province", "Fujian Province", "Guangdong

Android ViewPager sliding Event Description When I was working on a project today, I made a small research on viewPager page slide events: First, ViewPager uses OnPageChangeListener to process sliding events. OnPageChangeListener:

Because the GridView does not need to be grouped, the code processing is more concise, and the Principles have been explained clearly before. The code is just a simple one, and the necessary parts are simply commented out.1. Main Interface

Previous connection: http://blog.csdn.net/fu222cs98/article/details/21053491Continue previous articleQuestion 11: how to load resource files in the Fragment implementation class:In the onCreate method: LayoutInflater inflater =

In a project, it is composed of multiple Activity programs. At this time, communication between these Activity programs is required, and communication between these activities is completed by Intent. Intent operation method supported by the Activity

1. LinearLayout (linear layout ): LinearLayout is the first layout where only one control can be placed in one row or column. Now let's look at an instance: Activity_main.xml: Running image: The control is

I recently read some developer APP development. Although all of them have achieved perfect functions, many of them are far-fetched! I think: as a qualified software engineer, the most important thing is not how much code you have written, but how

Run the following command in the C: \ Program Files \ Java \ jdk1.6.0 _ 07 \ bin> directory (jdk installation directory) (if environment variables have been configured, enter the following command directly, however, the generated file will be in the

Https://github.com/zxing/zxing/tree/zxing-3.0.0. Rack pack http://repo1.maven.org/maven2/com/google/zxing/core/3.0.0/ Official Note: https://github.com/zxing/zxing/wiki/Getting-Started-Developing (all English, this article also referred) The size of

   ATCID is mainly used to process AT commands transmitted from the PC. The AT commands are mainly divided into three categories: 1. AT command to be processed by Modem; 2. AT commands that need to be processed AT the native layer (processed inside

(Reprinted please indicate the source: http://blog.csdn.net/buptgshengod) 1. Background In the android source code, we can see various characters starting with @, most of which appear in comments, as shown in But do not underestimate their

Use Terrain as an example to describe Transform Each Unity Object has a Transform, which represents some parameters of the Object in spatial coordinates. In Inspector, Transform has three attributes. For example Position: the Position of the

Author: Du Wei Intel thread building module (Intel TBB) is the most well-known C ++ thread library. Its latest version has been updated to 4.2. Compared with earlier versions 4.1, the updated version provides multiple important new features. Some

When I Post data to the Rest service on the Android end today, it is always unsuccessful. I checked a lot of information to know that the time format required for the Rest end to deserialize the json string must be UTC, and Date (12345678 + 0800)