Mobile Develop

About WiFiWi-Fi can be divided into five dynasties: first generation 802.11, developed in 1997, operates only in 2.4GHz, the fastest 2mbit/s Second generation 802.11b, only run at 2.4GHz, the fastest 11mbit/s, is gradually eliminated

HTTP request ModelFirst, connect to a Web server a client application (such as a Web browser) opens a socket on the HTTP port of the Web server (default is 80).Example: http://www.myweb.com:8080/index.htmlIn Java, this is equivalent to code:Soceet

1) Activity life cycle methods, such as: OnCreate (), OnStart (), Onresume (), onStop (), etc.2) Event handling methods, such as OnClick (), Onitemclick (), etc.In general, the execution time of the activity's OnCreate (), OnStart (), Onresume ()

A small program: pictures instead of mouse movementThe operation effect of the program:When the mouse moves to the window, the mouse is gone, instead of the picture .....==============================================Code section:=====================

1.System or Custom2. CodeFirstactivity.java Packageiflab.test;Importandroid.app.Activity;ImportAndroid.os.Bundle;Importandroid.text.Editable;ImportAndroid.text.TextWatcher;ImportAndroid.widget.TextView;ImportAndroid.widget.Toast; Public

Nonsense not much to say, directly on the code:Package com.otn.android.toast;Import android.app.Activity;Import Android.app.AlertDialog;Import Android.os.Bundle;Import android.view.Gravity;Import Android.view.LayoutInflater;Import

Since the establishment of a good environment, the operation of a appdemo a variety of exotic problems, after may feel is quite simple problem, but for the first contact of the people, there is no impulse to hit the computer too • Here will own the

For Android project development, spinner is often used to implement the drop-down box effect. For spinner, there are several ways to load adapters:1. Direct loading of Android Arrayadapter,simpleadapter;2. Customize the adapter that inherits the

Create a new layout file My_dialog.xml The following is the Strings.xml file: demo091801 Settings hello world! Customize dialog box User name Password Add a button control to the main activity_main.xml, and when you

If we need to debug the USB program and the Android device has only one USB port, then you can use WiFi to debug the program so that the USB port can be used.The approximate steps are as follows:1. Install "WiFi adb Wireless Debugger" in Android

Today's smartphones are equipped with a wide variety of sensors, this article describes the sensor development interface provided by the Android SDK, and shows how to use these interfaces with a simple example.Andriod SDK Sensor related classesThe

According to friends, third-party sharing component Statistics Report:Social sharing is making the mobile internet a huge potential: more than 51.1% of mobile-phone users have used sharing features in mobile apps. As more and more users have formed

Why do I need JNI?Android this huge system from bottom to top consists of the Linux kernel, C + + libraries, Java application framework, Java applications. This involves a question of how the C + + libraries intersect with Java applications, or can

Because Google is limited, that is, after the wall, the download speed is still very slow, people are very crash ah, so here to share the offline installation of the Android SDK and Eclipse ADT offline installation method.Before installing, first

Importjava.io.UnsupportedEncodingException;/*** Encoding of converted strings*/ Public classChangecharset {/**7-bit ASCII character, also known as the basic Latin block of the iso646-us, Unicode character set*/ Public Static FinalString us_ascii = "

As we all know, Android is open source, and now the market to decompile the fruits of other people's labor is also a lot, so we also need to learn the Smail language, (that is, the Android project anti-compilation grammar voice), see How to give us

 Select Sort:each trip selects the smallest (or largest) element from the data element to be sorted, placed in the final order of the ordered sequence, until all the data elements are sorted out. Select Sort is an unstable sort method. I. Algorithm

At first editetext the focus waits for input and the cursor flashes. WORKAROUND: You need to have the parent control get the focus.Android:focusable= "true" android:focusableintouchmode= "true" Remove the default border, below 4.0 is

Developer OptionsThe developer options are hidden, enter settings--about the phone, multiple click version number, a prompt message will appear, click a certain number of times after the developer options will be added to the Settings menu.650) this.

Problem Description:Access to the database, the phone can delete the database data is not to show the data in the database do not know where the problem, with the HTTPThis is the way I see all the information in my WebService: