android api tutorial

This is the Solidity Tutorial series article 8th introduces the solidity API, which mainly manifests as built-in special variables and functions that exist in the global namespace.Write in frontSolidity is the Ethereum Smart Contract programming language, you should know about Ethereum and smart contracts before reading this article.If you don't understand, it's recommended that you look at Ethereum first.S

Android API documentation offline second activation method, androidapi It was also recently developed for Android. However, its API documentation is neither online nor offline. Today, I debugged it and found that it requested several online files, which took a long time to request because Google was blocked. So I ch

problems, after the online query, and finally got the solution.The following are the problems encountered:(1) The user name is required when creating a new note, but if you pass the value from the landing page, you have to go through several pages, so you need to define the user name as a global variable. method to define a class and set the variables in it to static. Call this class when needed(2) Error when placing the note data in the ListView, the data is put into the Simplecursoradapter ty

Preface This chapter is about android. view. ContextMenu. ContextMenuInfo. The version is Android 2.3 r1 and translated from "Kun". Thanks again "Kun "! I look forward to your participation in Android Chinese API translation, contact me over140@gmail.com. Statement You are welcome to repost, but please keep the origin

Preface This chapter is about android. widget. RatingBar. OnRatingBarChangeListener, version: Android 2.2 r1, translated from madgoat, welcome to his blog: http://madgoat.cn, thanks again madgoat! I look forward to your participation in Android API Chinese translation, contact me over140@gmail.com. Statement You are w

Preface This chapter content is android. widget. AdapterView. OnItemClickListener, version for Android 2.3 r1, translated from "wheat", welcome to communicate with him: 0mellisa0@gmail.com, thanks again "wheat "! Welcome to join in Android API Chinese translation, contact me over140@gmail.com. Statement You are welcom

="@drawable/gafricalogo"/>This root view should be accurate so that the file can be displayed in any of the layout files that have been added to it.Use the Here ' s the layout file:xmlns:android="Http://schemas.android.com/apk/res/android"android:orientation="Vertical"Android:layout_width="Match_parent"Android:layout_height="Match_parent"Android:background="@color/app_bg"android:gravity="Center_horizontal"> layout="@layout/titlebar"/> Androi

React-native's official website Fetch introduction: https://facebook.github.io/react-native/docs/network.html#contentReact-native does not support $, that is, we cannot use $http to invoke the API, according to the React-native official website tutorial, we can use fetch, which is also a better network API, it can be used by default in react native.In the React-n

Reprinted from Http://www.w3cplus.com/css3/web-animations-api-tutorial-animations-conclusion.htmlWe've covered a lot of things earlier and want to be able to solve the problem of what the Web Animation API really is. In summarizing this series, we will review what we have discussed and then look at what has not been achieved.Why bother about APIs?In the introduct

Brief introductionZuul is the API gateway and filtering component provided by spring Cloud, which provides the following features: Certification Filter Pressure test Canary test Dynamic routing Service Migration Load Balancing Safety Static request Processing Dynamic traffic Management In this tutorial, we will use Zuul to forward the web-side request /produ

API version:Baidu positioning api:v5.0 (http://developer.baidu.com/map/wiki/index.php?title=android-locsdk/guide/v5-0)Baidu geocoding api:v2.0 (http://developer.baidu.com/map/index.php?title=webapi/guide/webservice-geocoding#7. E9.80.86.E5.9C.B0.E7.90.86.E7.BC.96.E7.A0.81.E6.9C.8D.E5.8A.A1)How to use:1) Apply for key (Http://lbsyun.baidu.com/apiconsole/key?application=key)Create a new app (note that the app

As an example:For example, the Android.content.ClipboardManager class is used in the program, and the class is added to the "library" in API 11.(Forgive me, do not understand the Google API document in the added in API 11 here is where to add it?) If there is an expert know, particularly grateful)So in the actual code and run debugging should pay attention to two

Learning Android For some time, should improve their actual combat ability, do some simple demo. Below we introduce how to use the network API to realize the weather forecast function, mainly involves how to use the API to obtain the network data, the network data return is generally the JSON format, here also involves the JSON parsing problem, these are the rela

Google has officially supported fingerprint recognition after android6.0, and is still on holiday today, so I tried this API at random, but encountered a variety of problems① found a lot of problems in using the Fingerprintmanager class, and some of the functions in this class were hide, which we can't call, like Enroll (), which means that the current official support is actually limited, We can read a fingerprint that already exists on this machine

In the past 2 months, the basic requirements of the project have been basically customized and evaluated, which revolves around the A31 and Android4.2.2. Recently, due to the need, in the framework of modifying his camera, the application needs to give Hal a parameter to control the implementation of the underlying image processing algorithm, that is, to provide a reasonable API for the development and use of the app.At first, the simplest and most ef

Because the Baidu map api,2.0+ and 3.0+ changes relatively big, API basically was completely changed, some students may 2.0+ API use is very familiar with, but update to 3.0+, but will encounter some small trouble (because the API has changed, you need to re-learn its API, t

voidSetOutAnimation(Animation outAnimation) Set the animation used when the view exits the screen Parameters OutAnimation animation starting when the view exits the screen See getOutAnimation() setOutAnimation(android.content.Context, int) Public voidSetOutAnimation(Context context, int resourceID) Set the animation used when the view exits the screen Parameters Context ResourceID: The resource id of the animation. See getOutAnimation() setOutAnimation(android.view.animation.Animation) Public

Android API Guides --- Text and InputText and InputUse the text service to add convenience features, such as copying/Pasting and checking spelling to your application. You can also develop your own text service that provides custom input methods, dictionaries, and spell checks, and you can distribute them to users for applications.Blog postsAdd voice input to your IMEThe new feature in