Programmer Group

Android develops TabLayout and Fragment to achieve tabbed effect Use TabLayout and Fragment to realize the function of tabs First on the renderings Write the interface first. Main activity.xml code vertical linear layout, two controls, with tabs above and content below <android.support.design.widget.TabLayout ...

AspectJ: a facet oriented framework 1.1 download: http://www.eclipse.org/downloads/download.php?file=/tools/aspectj/aspectj-1.8.13.jar 1.2 direct installation 1.3 create a new application and add configuration in build.gradle: copy the complete code here apply plugin: 'com.android.application' import org.aspectj.bridge.IMes ...

Simple use of memcached java client Start Memcached server ./memcached -d -m10 -u root -l 192.168.1.106 -p 2222 -c 256 -P /tmp/memcached.pid -The d option is to start a Daemons -m is the amount of memory allocated to Memcache, in MB, here is 10MB -u is the user running Memcache, here is r oot -l is the IP address ...

I want to open my voice and sing in the past few days. I found that the interaction effect in the app is very interesting. I suddenly want to write it out (maybe this is instinct) On the left is the local effect, and on the second is the singing bar effect Write code here Picture description here Picture descriptio ...

Set listening method 1 Usage method Set listening method 2 Usage method Set listening method 1 An Interface is defined in the Adapter; Keep an interface object in the Adapter; Set the interface object through the set and get methods of adapter; Set itemView and view clickListener in the onBindViewHolder metho ...

I've seen Glide's source code before, but the code package of Glide is strict and cannot be solved. There is a business scenario that may lead to memory leakage. I mentioned this method, but it felt a little complicated, so I didn't do it. In the afternoon, I spent a little time to sort out the following ideas again, and found ...

Recently, we have encountered the need for keyword query on large text. The effect to be achieved is that when a user enters a word or a word, all the contents containing the word or a word should be searched. It's the same as MySQL's LIKE query. In this scenario, the first thing I think about is to directly use MySQL storage, and then query, w ...

Component schema ViewModel 1.What? 2. Usage 1. Create the ViewModel to be saved 2. Create a provider and obtain the ViewModel instance saved in the ViewModelStore through the provider 3.ViewModel 1. ViewModel associated with application 4.ViewModelProvider Constructor Factory Get ViewModel instanc ...

Lifecycle source code analysis Catalogue introduction 01. What is the role of lifecycle 02. Simple use of lifecycle 03. Usage scenarios of lifecycle 04. How to realize life cycle awareness 05. How annotation methods are called 06.addObserver call analysis 07. Sort out and summarize the knowledge po ...

according to W3C performance team More than 50 ms is a long task. Pictures from Using RAIL model to evaluate performance According to the figure above, when the delay exceeds 100ms, the user will notice a slight delay. So to avoid this situation, we can use two schemes, one is Web Worker, the other is Time Slicing. Web Wor ...