Android

Interface Optimization and processing technology (iii) Optimize table components in the logon box and table components Create an xml file under drawable under res Code:1 2 3 4 5 6 login_border_bg.xml Add Tag settings to set the

Write the database files in raw to data, rawdata Package com. city. list. db; import java. io. file; import java. io. fileNotFoundException; import java. io. fileOutputStream; import java. io. IOException; import java. io. inputStream; import com.

Encapsulate Log tools and log tools Public class LogUtil {public static final int VERBOSE = 1; public static final int DEBUG = 2; public static final int INFO = 3; public static final int WARN = 4; public static final int ERROR = 5; public static

Listview selects the first item by default. Click to change the subitem background image. The listview background image (It's not a great god. There aren't hundreds of sub-projects. You can't do it) Private int last_item_position; @ Override

After the Android-socket server is disconnected and restarted, the android client automatically reconnects to the androidsocket server. I have been studying this issue for a whole day! I finally came out, but I didn't have much sense of

Use Volley to upload files and volley to upload files Upload files in a browser, and then analyze the packets through Wireshark. It is found that the data sent is like this. MIME Multipart Media Encapsulation, Type: multipart/form-data, Boundary: "-

Interesting notifications of Android animation effects: NiftyNotification (Android Toast alternative) and androidnotification The home page of a project on github for NiftyNotification is:

Zoom in and out images (Use smooth display with ViewPager)-third-party Open Source-PhotoView, Image zoom-in and zoom-out effect is achieved using an open source project photoView on github,: https://github.com/chrisbanes/PhotoView The test code is

Basic tutorial for Android-9.3 using CameraBasic tutorial for Android-9.3 using Camera Tags (separated by spaces): basic Android tutorial This section introduces This section introduces the use of Camera in Android. Simply put, there are only two

Ubiquitous Design Pattern in Android development-Rule Pattern This series has been stopped for a long time and can be pulled up again. This article mainly introduces the policy mode. Before that, let's review the four modes described above. The

Measure calculation process of View in Android   In Android, Veiw goes through three phases in sequence from memory to display on the UI: Traffic calculation-> Layout-> drawing, for details about the overall mechanism of View calculation, layout,

Android message mechanism (Handler message transmission mechanism) For the sake of performance optimization, android UI operations are not thread-safe, which means that if multiple threads operate on the UI component concurrently, thread security

Basic Android tutorial-10.3 AudioManager (audio manager)Basic Android tutorial-10.3 AudioManager (audio manager) Tags (separated by spaces): basic Android tutorial This section introduces: In the first section of multimedia, we wrote a Duang

Sdk prompts at least Build-tools 19.1.0 or above solutions, build-tools19.1.0 I found many methods on the Internet, such as modifying the host file or setting the sdk manager tool to force. The simplest way is to manually download the package under

Android Demo --- how to extract the Button + rounded avatar of a rounded corner Friends who often play apps know that there are many buttons on the App that are rounded. The circle is full and tense, I don't know if the partner who designs the

Custom Controls for Android graphics and images (demo: Scratch, human bypass, and image cache)Overview: This part covers the android custom View, custom attributes, and comprehensive Android Image Processing Applications: Bitmap, Path, Matrix, and

Android multimedia-learn to use the system camera in step 5 To take a photo with a system camera and return the photo, follow these steps:[1] Permission [2] Start the camera with intent Intent intent = new Intent (); intent. setAction

Android-determine SIM card status Android determines the SIM card status and whether the SIM card is inserted.For example, determine the preferred network type based on the SIM. SIM card status /*** Determine whether the SIM card is included ** @

Gradle Common commands and principles, and gradle Common commandsGradle is a new Android App compilation tool introduced by Android Studio to replace the previous Ant-based compilation system. Gradle commands such. /gradlew-v. /gradlew clean.

Write the lottery activity into a technical blog and a lottery activity.How is the experience of writing a lottery into a technical blog? Preparations for this activity: A Preliminary Exploration of Python