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preface As the saying goes, "born of hardship, die of happiness", in fact, most middle-aged crises are produced in happiness. Some people may retort, "as you say, I still have to struggle. If I don't struggle, I will die. Isn't it wrong to choose a comfortable life? Don't I have the right to choose my own way of life?" Pe ...

preface In Android, memory leakage is very common; The consequences of memory leakage will make the application Crash This article comprehensively introduces the essence, causes and solutions of memory leakage, and finally provides some common memory leakage analysis tools. I hope you will like them. catalogue 1.png 1. Introduction ML (M ...

Android system provides three kinds of animation: frame animation, gap animation and attribute animation. Here we analyze and summarize the attribute animation. Attribute animation is more powerful than frame animation and gap animation. Frame animation and gap animation can only be applied to View and its subclasses. Attribute animation can m ...

overview LeetCode Hot: Full Permutation, rotating image, letter ectopic word grouping, maximum subarray and, jumping game Design mode: adapter mode, decorator mode, agent mode, command mode and observer mode LeetCode Hot 2.21 full arrangement Given an array nums without duplicate numbers, all possible permutations are returned. You can ...

This article is based on: androidx.databinding:databinding-runtime:3.4.1 1. Introduction to Data-Binding A data binding library is a supporting library that allows you to bind interface components in a layout to data sources in your application using declarative formats rather than programmatically. Detailed documentation reference: https:/ ...

Activity communicates with Service The first method: call the Service method through MyBinder step Inherit Binder definition middleman object BanZhengService public class BanZhengService extends Service { //Return the intermediary object I defined @Override public IBinder onBind(Intent intent) { return new MyBinder(); ...

This article is rewritten from: Android multithreading: the principle and source code analysis of AsyncTask https://www.jianshu.com/p/37502bbbb25a Basic knowledge: see: xxxx / / you must understand the label & futuretask first 3 compound use of AsyncTask: use and Implementation (based on futuretask Implementation) The principle of AsyncT ...

Original address https://juejin.cn/post/6844904023955341319 Living status We know that the Android system will kill the background process, and with the update of the system version, the intensity of killing the process is still increasing. The starting point of the system itself is good, because it can save memory, reduce power consumption and ...

picture Image Picker - picture selectorCached network image - displays images from the network and saves them in the cacheImage Cropper - image cropFluent advanced network image provider - advanced image cache loading and scaling controlThe ui made by photo - Fluent is convenient for customization and modificationMulti Image Picker - Multi ...

preface I believe many students were asked about HashMap during the interview, especially Java/Android programmers. HashMap is almost bound to be mentioned. Because there are too many points to dig. HashMap about Java can be seen everywhere on the Internet. Naturally, with the popularity of fluent, you may also be asked about the HashMap of fl ...