Android

This article mainly explains the use of Android matrix control graphics rotation zoom movement, see the code specifically: Copy Code code as follows: /** * Use matrix to control picture movement, scaling, rotation */ public class

The list of files in the SD card is displayed through ListView in Android there are two methods, one is: Through the inheritance listactivity display, the second is: use Baseadapter display. Baseadapter is a common base class adapter that provides

In Android, you often use help, about, and the author's tips page. A page like this: Such a page, we can through the Alertdialog dialog box to design. Design a Aboutdialog class to inherit from Alertdialog Copy Code code as follows:

There is a service in Android that says it's a service, and it's an interface called Android Interface Definition Language, which provides access across processes, abbreviated as: Aidl. The benefit of such a service is that there is a common

TextView properties in a layout file Copy Code code as follows: Android:id= "@+id/businesscardsingle_content_abstract" Android:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:layout_margintop= "5DP"

Objective The needs of our developers in the actual project are varied, and sometimes we have to match the app's own design style, and sometimes we feel that the system's dialog box is not very free, so it's necessary to define a dialog for

Coordinatorlayout implements a variety of scrolling effects mentioned in the material design. The framework currently provides several ways to work without having to write animated code, including: * Let the floating operation buttons slide up and

Objective During the Android development, I found that many An Zhouyuan code used design patterns, more commonly used adapter patterns (various adapter), Builder Mode (Alert dialog build), and so on. Although we know a lot about design patterns, in

At the beginning of Android 6.0, some of the privileges required us to apply dynamically, that is, when we open the app, the system will not take the initiative like you need to apply for apps, and require customers to apply actively when using the

Recently things have been very busy, a new project to rush out, but many functions have to redo, has been writing code, Debug. Today, because a new program to use fragment to do, although the previous use of fragment, but did not study carefully,

The front for you to talk about the two clockwise method of the timer, in the recording of video and other operations quite use, today brings you the countdown to achieve two ways. Although the recent writing is relatively simple and basic, but the

Effect chart train of thought: is to set the number of GridLayout first, and then put a certain number of custom Calendar button control, the last implementation of the calendar logic can be. Steps: First step: Customize the Calendar control

We are in the development of Android app will inevitably have to deal with the server, especially for user account information registration and login is every Android developers must master skills, this article will be the client registration/login

TextView in Android is one of the most complex controls in the entire framework, responsible for most of the work of displaying text in Android, and many of the controls in Framwork are directly or indirectly inherited from TextView, such as button,

Usage XML android:background=? attr/zzbackground app:backgroundattr= zzbackground//If the current page is to be refreshed immediately, pass the property name here For example, R.attr.zzbackground Chuan Zzbackground can be android:textcolor=?

Effect Preview Source code Transfer Gate: Https://github.com/yanzhenjie/CircleTextProgressbar Realization and principle We've seen it in many apps, such as app welcome page countdown, download file countdown, etc. Analysis of the principle,

The effect is as follows: A brief introduction to Bitmapshader About Shader What is, what Shader kinds of types and how to use does not belong to the scope of this article, on this aspect is not very understanding of the students, suggested that

In Android development, view is the technology that we have to touch to show. Typically, as the view becomes more complex, the performance of the overall layout decreases. Here's a view that promotes layout performance in some scenarios, which is

Today I'm sharing with you the way to set up wallpapers in Android, there are three ways to set up wallpaper in Android, respectively: 1, the use of Wallpapermanager setresource (int ResourceID) method 2, the use of Wallpapermanager SetBitmap

Action: A string constant that sets the action to be completed by intent. Use Setaction () to set the Action property and use Getaction () to get the Action property. You can either use the system's built-in action or define it yourself. System