Programmer Think

1. Summary of Interactive Ways Android Calling methods with JS through WebView is actually: Android calls JS code JS calls Android code The bridge between them is WebView There are two ways for Android to call JS code: 1. Load Url () through WebView 2. Evaluate Javascript () via WebView There are three ways for JS to call ...

Introduction This week, we mainly do page design and code writing. In the previous two days, we mainly did the following work: Preliminary Design of Pages and Logical Interaction Design Client Code Writing Background Coding Next, I will introduce the registration function, which is part of my work in writing client code. Registration fun ...

Shared Preferences, as one of Android's data storage methods, is characterized by: 1. Only Java basic data types are supported, and custom data types are not supported. 2. Data sharing in application; 3. Easy to use. Usage method 1. Storage of data SharedPreferences sp = getSharedPreferences("sp_demo", Context.MODE_PRIVATE); sp.edit(). ...

Principle analysis The general logic of token is that the login interface obtains a token and refresh_token for refreshing token. In the next token request, all interfaces need to carry the token request so that the server can verify that the source of the request is legitimate. This token is timeliness, the server will give him a timeliness ...

I. Introduction Above is the homepage Tab of the Android side of the brief book. Tab is also very common in other apps. It can be implemented in many ways: TabHost, custom controls (third-party libraries), RadioGroup and so on. This article mainly introduces the use of TabLayout in the Android Design library. TabLayout and ViewPager are ...

Local environment: macOS 10.12.5 Working directory: ~/android-docker/ I. Preparing case-sensitive disk images Create a disk image First, use the following command to view disk information. diskutil info / If the File System Personality of disk information is Case-sensitive Journaled HFS+, then the current file system is case-sensitiv ...

Preface In my last article, I briefly learned about the environment configuration and basic usage of DataBinding: Summary of Android Data Binding (I) This article summarizes the basic ways of using Google's official documents. Basic data binding 1. Objects (JavaBean s) can be created in this way: /** * Created by QingMei on 2017/5 ...

This chapter focuses on collections, operator overloading, control flow operators, and so on.In addition to collections, you can think that other content is more complicated and difficult to use. I suggest that the reader practice more, or the brothers will not help you! Kotlin mainstream collection framework Frame analysis of sets If ...

Preface In Android, data sharing between applications is a very common thing, and the typical scenario is to read the phone address book. In order to share data safely and efficiently, Android provides ContentProvider, a component called ContentProvider. This article briefly explains the use of ContentProvider. Accessing data in other appl ...

At the 2017 Google IO conference, besides android, Kotlin, there is a new architecture, componets. There are many introductions about the architecture itself on the internet. I will briefly analyze the demo provided by the government. After all, it is the kingdom to write code. First, add a basic knowledge of componets: the schematic diagram ...