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Android Database Framework - Green Dao Lightweight Object Relational Mapping Framework, Permanent Goodbye to sqlite Not long ago, I wrote a blog post on ORMLite framework. Android Database Framework: ORMLite Lightweight Object Relational Mapping (ORM)Java Package But for me personally, I may be more inclined to use Green Dao, so toda ...

In AIDL, incoming parameters from client and server can be set to flow direction. Only parameters do not contain return values. 1. in: The client can pass in parameters to the service (default method) 2. out: The server modifying the client's incoming parameter object will affect the client's incoming instance 3. inout: The serv ...

The first is related resources. AndroidStudio 3.0 canary 1 Official Download Address Click without ladder Baidu Cloud Download Address Google provides demo clicks on new Android O features and Kotlin Kotlin Demo Android Studio 3.0 already fully supports Kotlin, so now you can easily build a new Kotlin-based Android project or add Kotlin ...

4.1.8 Processing Empty ListView ListView is used to display list data, but when there is no data in the list, ListView will not display any data or prompts. According to the need to improve the user experience, there should be no data prompts here. Fortunately, ListView provides a method, setEmptyView(), through which we can set a default pro ...

Definition of a policy pattern: A policy pattern defines a series of algorithms and encapsulates each one so that they can be substituted with each other. A policy pattern makes an algorithm independent of the clients that use it. Scenarios for using the policy pattern: Multiple ways of dealing with the same type of problem, only when speci ...

Customize QQ Home Interface Tab I took time to learn the blog of big sperm and downloaded it by the way, but it's really nauseous that CSDN does not have the function of one-click reload, so I'm bored!!!Of course, you can also go to his Xiaoo to learn Xiaoo. Click to jump to the original blog post QQ Android version effect pasted first ...

The use of customized view is very common in android. Here, we introduce a simple customized view in the container of listview. This is a functional presentation. First, you need to create an xml file in the layout folder to determine the composition of each small item, that is, listitem.xml Then, we define a list view to display our ...

Preface In the input box EditText, we often add icons such as deleting X, drop-down arrows to get better user experience and needs. If on the right side, we often set the drawableRight attribute to achieve, then how do these icons respond to click events? Here's a brief record! Method First of all, we need to inherit AppCompat EditText an ...

Recently, when I was writing some little Demo review basics, when I used EditText, I suddenly found that I hardly noticed the color of its cursor and underline before, so I spent a lot of time and read many blogs. Now I will summarize and share the harvest. 1. First impression: native EditText We need to modify the native EditText, first o ...

I. Introduction First, browse the handler code below: public class SampleActivity extends Activity { private final Handler mLeakyHandler = new Handler() { @Override public void handleMessage(Message msg) { // ... } } } This is a very common piece of code when using handler. However, it can cause serious memory l ...