Android

This example describes how Android controls both the number of edittext input characters and the prohibition of special character input. Share to everyone for your reference. The specific analysis is as follows: Here's a summary of three ways to do

The example of this article is about the implementation of database SQL programming for Android programming. Share to everyone for your reference. The specific analysis is as follows: Install lightweight database SQLite in Android, and now test the

Android introduced a privilege mechanism the initial point of view is to strictly control and handle security issues through a privilege policy, see: The following two articles, but there are still some small but not negligible questions about the

Yesterday you need to handle a problem and you need to listen for the home key. The first thought was to use the Onkeydonwn method. But found that home cannot handle this, ONKEYDONWN can handle menu and back keys, but home cannot. Because the home

This article illustrates the method of data transfer between Android implementation activities. Share to everyone for your reference. The specific analysis is as follows: First, explain the start and shutdown of activity: 1. StartActivity (Intent

The right and left sliding is the most commonly used mobile phone, this simple encapsulation a bit, later directly to use on it. Just a few lines is all it takes, and the following class is encapsulated. package com.example.test; Import

What's the difference between a notification and a message? Notification: When sent, it will be displayed in the System notification column, while ringing or vibrating to alert the user.Message: After sending will not be displayed in the system

The Android hardware abstraction layer, in short, is the encapsulation of the Linux kernel driver, which provides an interface to the lower level of implementation detail. support for hardware is divided into two tiers, one layer in user space,

Detailed explanation of WebView in Android: 1. Concept: WebView (network view) can load a display page, which can be viewed as a browser. It uses the WebKit rendering engine to load the Display Web page. 2. How to use: (1). Instantiate the

To tell you the truth, for xutils, I recently used the development framework (also just contact), for its function has to say, simplified a lot of development steps, can be said to be a very good development tool, but its recent update to 3.0 does

This article introduces the Android implementation of the first letter navigation bar, first look at the picture, how to implement the code to see The specific steps 1. Overall layout of the display2. Realize A-Z grouping3. Customize A-Z

With this article, I would like to explain how to create a searchable "contact list" Android application. With this application, users can browse through all saved contacts and search for contacts by their contact names by using the navigation

This example describes the spinner usage of the Android control. Share to everyone for your reference. Specifically as follows: Use of the following emulated Drop-down lists Layout file: Spinneractivity class: Package

In the project development, many times will use the Android time, lists the acquisition time the way, and everybody studies together progressfirst, get the system time 1. To get the current time of the system through the Calendar class

Apps only involve contact people's interfaces, almost all alphabetically and in the way the navigation bar is arranged. Since this demand so fire, so began to learn related content, this article is I through the reference on the Internet data

A common feature of the application is that when users are happy to load more content automatically, this is done by sending a data request when the user slides a certain threshold value.The same is true: the effect of sliding information needs to

In Android, it's not safe to update UI controls in a non main thread, and app runs directly crash, so when we need to update UI controls in a non main thread, we need to use handler and message to implement demo, Use to a button and a TextView,

This article illustrates the Android implementation of the Taobao shopping cart to increase and reduce the number of merchandise functions. Share to everyone for your reference, specific as follows: In a previous example of Android's imitation

This article is an example of how Android calls the phone's camera function. Share to everyone for your reference. Specifically as follows: First, main.xml layout file: Second, the core code: Package com.ljq.test; Import

Refer to Android imitation Tencent QQ implementation of sliding Delete this article to learn, the article implementation of the function is: on the ListView item from right to left, the deletion button appears, click the Delete button to delete the