Programmer Group

RecyclerView The scalability of ListView is not good. It can only realize the vertical scrolling effect of data, but not the horizontal scrolling. RecyclerView not only can easily achieve the same effect of ListView, but also optimizes the shortcomings of ListView. RecyclerView scroll horizontally 1. RecyclerView is a new c ...

When using listview/recycleview, we often encounter a demand: a layout is suspended under a ListView, and when the items of ListView exceed the bottom of the screen, they are fixed at the bottom. At first, I thought of using ListView's footer to realize this function. Later, I found a simple layout to realize this function. L ...

Today, let's talk about the use of DataBinding in the list RecyclerView List binding List display is often used in App. Data Binding plays an important role in the list, directly binding data and events to each list item.   RecyclerView In the past, we used to use ListView, GridView, or some customized views on GitHub to do waterfall flo ...

Novice on the road, meet CSV read-write requirements, CSV file has blank lines. Referring to some blogs, I wrote JAVA read-write CSV file tool class by myself. CsvReader: /** * @Title: CsvReader.java * @Package:xxd.tools * @Description:TODO * @author XingXuDong * @date:2018 September 26, 2014 19:47 PM */ package xxd.t ...

When the table slides up and down, the first row is fixed and linkage is not required. The effect is as follows:       Right slide, slide, select:      The structure is as follows: Each Item of the header LinearLayout and the table content ListView is the same LinearLayout. If you want to have different lines, set the wi ...

1. First understand the recording process 1. Define AudioRecord recording related parameters, such as audio acquisition source, audio sampling rate, channel, data format, and minimum recording cache //Audio acquisition source private static final int mAudioSource = MediaRecorder.AudioSource.MIC; //Microphone //Audio ...

Why do we use base base64 is one of the most common encoding methods used to transmit 8-bit byte code on the network. Sometimes we need to encode the binary data in a form suitable for placement in the URL. At this time, base64 encoding is not readable, that is, the encoded data will not be directly seen by people. In addition ...

introduction: Recently, the company is working on an education, training, learning and online examination project. I am mainly engaged in the online course module, mainly doing the course classification, course, courseware creation and online learning and statistical functions, because courseware involves many types, such as video, audio, graph ...

As we mentioned in the previous article, when @ Bean annotation is marked on a method, the method return value will be put into the ioc container when the ioc container is started In the development process, there are many package scanning methods. Next, we will introduce two methods: one is based on xml, the other is based on annotation. Let ...

Custom menu query interface After using the interface to create a custom menu, developers can also use the interface to query the structure of the custom menu. In addition, please note that after the personalized menu is set, the default menu and all personalized menu information can be obtained by using this customized menu que ...