Programmer Think

Kotlin Is a modern programming language that focuses on simplicity, clarity and code security. Google officially adopted Kotlin by adding support to Android Studio in 2017, and then announced it as the preferred language for Android developers on Google I/O 2019. Perhaps your Android application team has gradually added Kotlin code to your pr ...

1. Preface Recently, the fuzzy search function in the project is very difficult at first, but it's nothing to think about it carefully, because the specific fuzzy search part is the interface provided by the back end, and what we need to do is to perform the search function once when the content of the search box changes. 2. Renderings ...

prefaceAs we all know, Binder is the main interprocess communication suite in the Android system. More specifically, many articles call it Binder driver. Why is it a driver? What is the driver? Let's uncover it step by step from the Binder in the kernel from the bottom up. This article focuses on helping readers have a brief understanding of Bi ...

Bottom navigation bar The bottom navigation bar is commonly used. At present, almost all commonly used apps use the bottom navigation bar to classify the content. The implementation of the bottom navigation bar is also relatively simple, which can be implemented in a user-defined way. Usually, each item is composed of an icon and title, and th ...

prefaceThis article is not written to analyze how the Handler is used. The purpose is to look at the evolution of the Handler from a design point of view and why there are four classes: looper, messagequeue, Handler and message.I The nature of thread communication?The main difference between threads and processes is that threads share memory. I ...

1, KSPWhen developing Android applications, many people make complaints about Kotlin slow, and KAPT is one of the culprits who slow down compilation. We know that many Android libraries use annotations to simplify template code, such as Room, Dagger, Retrofit, etc. by default, kotlin uses kapt to process annotations. Kapt has no special annotat ...

Article introduction: GT package that you can't put down in development. Follow the GSLS official website to view more source code (✿ ﾟ ▽ ﾟ) toolkit. All articles are compiled so that readers can directly read and completely copy and paste. Among them, complex or more source codes will have source codes and paste them on the github website. ...

[27.EditText soft keyboard] EditText does not pop up the soft keyboard initially, only the cursor is displayed, click and then pop up Solution 1: Set in the activity property of the manifest android:windowSoftInputMode="stateHidden" Solution 2: InputMethodManager inputMethodManager = (InputMethodManager)this.getSystemService(Context.IN ...

The Android system actually has a built-in database. SQLite is a lightweight relational database. It has very fast operation speed and occupies very few resources. It usually only needs a few hundred KB of memory, so it is especially suitable for mobile devices. SQLite not only supports the standard SQL syntax, but also follows the ACID t ...

preface System performance optimization is a huge topic. It can be said that most of our work in Freamwork is held around this point. In this article, we have done some work in AMS under the condition of low memory. By killing some unnecessary processes, users can ensure the smooth use of the system without jamming. Low memory performance opti ...