activeandroid

Activeandroid is an open-source database framework that makes it easier for us to use databases in Android, and today we'll look at the use of this database framework.1. Introduction of ActiveandroidFirst create our own project, in our project introduced Activeandroid, introduced activeandroid need us to modify two places, a global gradle file, there is a local g

From the Java Web to Android students should know SSH or SSI, used to hibernate or mybatis, to go to Android after the easy to find the ORM is not feel very uncomfortable. In fact, there are many Orm in Android. Activeandroid sugarorm Siminov Greendao ormlite androrm This article mainly introduces the usage of activeandroid. Students who have used Litepal will find that the use of these two frameworks is so

difference is just the details of the process.If interested classmates, recommend reading the source code under Activeandroid. Reading the fucking code!Once wrote a series of articles introducing Xutils, the FINALDB module is an ORM framework, which is often used in my work. Today we introduced the Activeandroid API is quite simple and friendly. And the function of the same powerful.

, recommended reading under the activeandroid source. Reading the fucking code! Previously wrote a series of articles about Xutils, the Finaldb module is an ORM framework, which is also used in my work. The Activeandroid API we are introducing today is also quite simple and friendly and powerful. Activeandroid Concise API gives people a feeling that it is comfor

In the previous chapter, we finished reading the Conguration class. Finally, we find that conguration is for the initialization of the database. It contains the memory size, database name, database version, parser information. Public Static synchronized voidInitialize (configuration configuration) {if(sisinitialized) {LOG.V ("Activeandroid already initialized."); return; } Scontext=Configuration.getcontext (); Smodelinfo=Newmodelinfo (configuration);

, recommend reading under the activeandroid source. Reading the fucking code!Previously wrote a series of articles introducing Xutils, of which the Finaldb module is an ORM framework, which is commonly used in my work. Today we introduced the Activeandroid API is quite simple and friendly, but also the same powerful features. Activeandroid Simple API gives people

Android ORM framework ActiveAndroid and ormactiveandroid1. In AndroidManifest. xml, we need to add these twoAA_DB_NAME (Database name, which cannot be changed, but is optional. If this parameter is left blank, the default value is "Application. db) AA_DB_VERSION (the database version number is also optional-the default value is 1) ... 2. initialize In the first Activity or application 3. To create an object class, you must inherit from the Model.

Set in Androidmanifest Meta-data Android:name = "Aa_models" android:value= "Entity class for Full package name"/>Many are separated by commas, but this setting is not valid and is not known for a reason. So in the code, before initialize, add the database entity class.Configuration.builder config = new Configuration.builder (this); Config.addmodelclasses (Dbaccount.class, Dbplatform.class, Dbmessage.class, Dbpopquestion.class, Dbstudyrecord.class); Activeandroid.initialize (Config.create

() {return"userentity{" + "age=" + Age + ", username= '" + username + ' \ ' + '} '; }} Public class extends Application { @Override publicvoid onCreate () { super . OnCreate (); // initializing the database framework Activeandroid.initialize (this);} }/*** 1. Add dependencies * 2. Initialize Activeandroid * 3 in the Application class. Create an entity class that inherits from Model * 4. Create an instance of an entity

settings4) SQLite/data/data/packagename/databasesScenario: Large data volume, similar data structure, frequent increase/deletion/change/checkContacts, text messages, pictures, audio, video5) WebURLScenario: Users can view on any deviceCategory:1) Service side2) ClientReview:SQLite Use steps1) Inherit Sqliteopenhelper2) Create helper, helper.getwritabledatabase ()3) db.execsql (SQL)db.rawquery ()relational databaseObject Oriented4) ORM Object Relational MappingDb.insert ()Db.delete ()db.update (

. string. label_press_main, Toast. LENGTH_SHORT ). show (); mExitTime = System. currentTimeMillis ();} else {finish ();} return true;} else return super. onKeyDown (keyCode, event );}ActiveAndroid conflicts with Gson Problem description:ActiveAndroid Model cannot be instantiated through Gson because ActiveAndroid Model contains fields that cannot be converted by Gson; Solution:Filter the specified class in

effect, see the blog link. SwipeRefreshLayout SwipeRefreshLayout is a pull-down refresh component updated by Google in the support v4 19.1 library. It is easy to use and can easily implement the Google Now effect.Some open-source libraries required for Android Development Speaking of open-source libraries, you have to mention GitHub. It can only be said that it is currently the most active open-source community. If you do not know how to register an account to use it, it is definitely a tool fo

understand this, you can participate in some open-source projects.Some open-source libraries required for Android Development Speaking of open-source libraries, you have to mention GitHub. It can only be said that it is currently the most active open-source community. If you do not know how to register an account to use it, it is definitely a tool for you to quickly improve technology.Volley In App development, it is inevitable to interact with the server. volley is an open-source network commu

to write a separate SQL statement. Each database record is wrapped neatly into a class of methods, such as Delete () and save ().Objects that extend the Activeandroid model can be stored in a database, such as:[JS]View Plaincopy User.save (); You can easily replace large SQL statements:[JS]View Plaincopy INSERT into Users (nickname, Name, Address, City, PostalCode, country) VALUES (' Batman ',' Bruce W ',' Palisades 21 ',' Goth

operation of data than the Android native system SQLite 47.android-cleanarchitecture Cleanarchitecture is a very typical use of the MVP architecture of the project, if you have not understood the MVP architecture can look at this project Stickylistheaders. Stickylistheaders is a ListView section header library that can be fixed at the top of the screen, that is, the header of the current section is fixed at the top of the screen, and when it slides to anoth

://github.com/white-cat/ThinkAndroidSpringandroid http://projects.spring.io/spring-androidAndroidannotations http://androidannotations.orgHTTP Asynchronous Request Http://loopj.com/android-async-httpAndroidquery Https://github.com/androidquery/androidquery (Asynchronous loading)Asynchttpclient https://github.com/AsyncHttpClient/async-http-client (Asynchronous request)Ion https://github.com/koush/ion (Asynchronous request)OkHttp http://square.github.io/okhttp (HTTP tool)Greendao http://greendao-o

.ActiveAndroid Activeandroid is a lightweight ORM architecture for the Android platform designed with the Active record architecture pattern in rails, enabling rapid development with virtually no SQL code to write 51.android-volley Volley is a new network communication framework launched by Google's official development team in 2013 at the Google I/O Conference, a framework that comb

BlogSwiperefreshlayoutSwiperefreshlayout is a drop-down refresh component of Google's support V4 19.1 version of the library update, which is handy for Google Now's results.Some open source libraries that Android developers must knowWhen it comes to the open source Library, you have to mention GitHub, only to say that the most active open source community, do not know to quickly register an account to use, is definitely your fast technology to improve the weapon.VolleyWhile app development is i

more, such as Greendao, Ormlite, Activeandroid, Sugarorm, and so on, where Greendao runs most efficiently and consumes the least memory. Let's take a look at the specific usage of Greendao. Second, download and unzip Greendao related resources through the official website, you can obtain Greendao related resources, official website address:http://greendao-orm.com/ . Through the above address, the Greendao related resources

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