Android

This example describes the usage of database transactions in Android development. Share to everyone for your reference, specific as follows: In the development of Android applications, transaction processing is very important when using a database.

A lightweight data interchange format with good readability and fast-coding features. The industry's mainstream technology provides it with a complete solution (a bit like regular expressions that are supported by most languages today), allowing

The Android platform has three network interfaces that can be used: java.net.* (Standard Java interface), Org.apache interface, and android.net.* (Android network interface). The functions and roles of these interfaces are described below. 1.

The example in this article describes how Android programming implements TextView font color settings. Share to everyone for your reference, specific as follows: for Settextview (int a) Here's a is the value of the color passed in. For example, the

Rob Red envelopes, first look at the effect chart ~ To achieve automatic red envelopes, solve the problem has two points: One: How to monitor the occurrence of red envelopes in real time Second: How to automatically enter the page when the red

The example in this article describes how Android is programmed to get a mobile phone back-office service. Share to everyone for your reference, specific as follows: public static String Getrunningservicesinfo {StringBuffer serviceinfo = new

There are two main ways to use service in Android, by invoking the StartService method of the context, or by invoking the Bindservice method of the context, this article only explores the use of pure bindservice, Does not involve any StartService

Clearfocus Invalid? EditText in focus and not focus, the display is different: Focus when the cursor is flashing, and we usually give it to set the selector,focus when it is added to the border and so on. Usually when we touch a view outside of

JSON syntax First look at the syntax and structure of JSON so that we know how to parse it. A JavaScript object represents a subset of the syntax when JSON syntax. The value of the JSON can be: Number (integer or floating-point) String (within

These days because of the requirements of the project, you need to overlay a layer of transparent arc on the ImageView, and in the direction of the arc to display the corresponding text, the effect as shown in the following figure: To get this

You can think of fragment as a modular part of the activity, having its own lifecycle, getting its own events, and you can add or remove it when the event is running (a bit like the one you can reuse in a different activity). Child activity "). This

Water-like ripple ball progress bar Controller, Android to achieve high-end atmosphere of the mainstream special effects for everyone to reference, the specific content as follows Effect Chart: Circleview This is mainly the realization of

This article describes the Android API based TABS3 to achieve the tabhost effect. Share to everyone for your reference, specific as follows: Two days ago, the teacher let himself write a video player client, this is his lectures on a small demo, by

The purpose of the contentobserver--Content Viewer is to observe (capture) the changes in the database caused by a particular URI, and then do some corresponding processing, similar to theA Trigger in database technology (Trigger) that fires when

In the Android system API, there are two camera classes: Android.graphics.Camera Android.hardware.Camera The second application in the mobile phone hardware related to the operation of the camera, this article is about using the first

This example describes the messaging mechanism in Android programming. Share to everyone for your reference, specific as follows: Before we analyze the Android messaging mechanism, let's look at a piece of code: public class Mainactivity

Project Introduction: One of the biggest headaches on Android is getting pictures, displays, recycling from the web, and any problem with a link may be directly oom, and this project may help you. The purpose of Universal Image Loader for Android

1.Pull IntroductionThe pull parser is built into the Android system, and the pull parser, like the SAX parser, provides similar events, such as the start element and the intro element event, using Parser.next () to go to the next element and trigger

New Animation API that allows you to create touch feedback in UI controls, change view state, and toggle a series of custom animations for the activitySpecifically: Touch feedback Animation In response to view's touching events To hide and

Android is an operating system that is based on the Linux kernel and is oriented to mobile terminals. To adapt to its special needs as a mobile platform operating system, Google has made a special design and optimization, so that the application is