Android

Last year, Amazon releasedKindleDevelopment Kit that enables developers to create and run applications on popular wireless portable e-book readers. But in fact, many people with Kindles are more accustomed to using real money to buy e-book

Overview The development website www.android.com is in harmony, and the content on the official SDK website needs to be turned

1. Application Basics Android applications are written in Java programming language. Compiled Java code, including any data and resource files required by the application, is bundled into an Android package using the aapt tool, and the archive file

  Today, I wrote a method to handle the onDoubleTap event. Double-click the program to zoom in and out the screen event, double-click the screen image to zoom in, and then double-click the screen image to zoom in to the original effect. See the

  Recently, with an eye on the attention and research of ANDROID4.0, the first time I put the source code of ANDROID4.0 down is only a matter of time, so I was not able to record the process as soon as possible. Today, I will write it down as soon

Currently, all devices that can be searched by chance involve file operations, such as computers and mobile phones. Android file operations are similar to those on computers. They can be stored in the built-in storage of mobile phones or SD cards.

  In the previous article, we introduced the OAuth authentication method and related implementation based on the Sina Weibo open platform. After the user has successfully authorized and obtained the corresponding AccessToken and Access_secret, we

(1) ConnectivityManagerIn Android, The ConnectivityManager class represents the network connection service, which is used to monitor the network connection status, configure invalid reconnection, and control the network antenna. To obtain a

The blocking key can override the two methods of activiy. Blocked return key Public boolean onKeyDown (int keyCode, KeyEvent event ){ Switch (keyCode ){Case KeyEvent. KEYCODE_BACK:Return true;}Return super. onKeyDown (keyCode, event );}   The

I have no intention of discovering a good xml layout for drawing background images in android today! Shape. Using shape can replace the previous background image search! A picture shows the effect.  This background is drawn using shape. A few lines

The Android system will maintain a program process for as long as possible, but when the system resources are insufficient, after all, the system will kill some old processes for some new or more important processes to release the memory. The system

1. Create an XML file in the layout directory: [Html] Xmlns: android = "http://schemas.android.com/apk/res/android"Android: orientation = "vertical"Android: layout_width = "match_parent"Android: layout_height = "match_parent">Android: id = "@ +

Android permission control code analysis   Before in the article introduced android system management level: http://www.bkjia.com/kf/201204/127682.html, here the core code analysis   The android system makes full use of the linux user permission

A drawn resource is a general concept of a graph that can be drawn to the screen. It can be obtained by using APIs such as getDrawable (int) or using android: the drawable and android: icon attributes apply them to another XML resource. There are

Obtain the device version, such as a tablet or mobile phone. Android. OS. Build. VERSION. SDK_INT> = 11, android3.0 or above ---- Tablet Android. OS. Build. VERSION. SDK_INT> = 7, android2.1 or above ---- mobile phone   Obtain device manufacturers,

If you need to automatically start the application when Android starts up, you can respond to android. intent. action. BOOT_COMPLETED broadcasts messages. Android is triggered when the android system is started. intent. action. BOOT_COMPLETED

Android phone simulation application Applet 1. Introduction There is already a call effect in android. To better understand android, We can compile a simple android program to simulate it. Code Description 1. First, we will compile the view

In addition to the ability to return data results from an Activity, it is also very common to transmit data to an Activity.1. Create a project named PassData. 2. Code in main. xml. [Java] view plaincopy Android: layout_width = "fill_parent"Android:

1. method 1 Private void toggleGPS (){Intent gpsIntent = new Intent ();GpsIntent. setClassName ("com. android. settings", "com. android. settings. widget. SettingsAppWidgetProvider ");GpsIntent. addCategory ("android. intent. category. ALTERNATIVE ")

[Java]For (Enumeration en = NetworkInterface. GetNetworkInterfaces (); en. hasMoreElements ();){NetworkInterface intf = en. nextElement (); if (intf. getName (). toLowerCase (). equals ("eth0") | intf. getName (). toLowerCase (). equals ("wlan0")