android system recovery

listener btnOpen to each button. setOnClickListener (this); btnHide. setO NClickListener (this); btnExit. setOnClickListener (this) ;}@ Override public void onClick (View v) {switch (v. getId () {case R. id. btnOpen: // create an Intent and set intent Intent = new Intent (MainActivity. this, OtherActivity. class); if (ARR_INT> = arrStr. length) ARR_INT = 0; // send data intent. putExtra ("info", arrStr [ARR_INT ++]); // start another Activity this. startActivity (intent); break; case R. id. btn

This year, Google launched Android Auto, a car Android, designed to provide entertainment, navigation, and other functions. Android Auto, however, is not the end point, and now news reports that Google is developing a vehicle-mounted Android system that can completely replac

Once upon a time, I wrote an article on Android sensor "stunning entire basketball court "... in a twinkling of an eye, two years have passed. It's really a thing that's gone, and the technology is updated fast. Now it's 4.0 chocolate ice cream... 0. Overview This article hopes to understand the sensor system from the dynamic perspective (application process) and static perspective (framework architecture.

Tell me what I'm trying to do before I finish this example. First, modify the "Actionbarsherlock" navigation example. Before I implemented this example, I tried "actionbarsherlock" to modify one of its tab navigation examples, and the modification was successful. But finally found that it is not a actionbar implementation of the tab, can not hide Actionbar, when the Actionbar hide method is invoked, Actionbar is hidden, but the title of the tab page still exists, And in the lower version of

Implementation of screenshot capture in Android system (with code included) and screenshot capture in android system1. I have been writing a blog on the background for almost two years. I have written more than 100 articles. The most popular article is how to achieve screenshots of the android

drawable-hdpi.According to the above, dip (DP) should be used as the unit in the layout, and SP is recommended for units defined as text size.ContextThe Context class is an abstract class with many subclasses, such as Activity, Tabactivity, Service, and so on. Many methods need to pass in the context parameter in order to instantiate an object, such as a Toast instance object, when the first object is passed into the context object. In fact, the context can literally be understood to resemble a

compiled directly from the android source code! Repo is the encapsulation of git to facilitate the acquisition of the android source code. The source code is maintained by git, so the same is true for obtaining the source code by git. In addition, all documents on www.android.com are available, and documents on the Internet are also available on the official website! I. Basic Development Environme

Android system architecture and android System Structure 1. Applications Android is released together with a series of core application packages, including email clients, SMS Short Message programs, calendars, maps, browsers, and contact management programs. All application

Android adopts a hierarchical architecture like its operating system. From the structural diagram, Android is divided into four layers: application layer, application framework layer, system Runtime Library layer, and Linux core layer. Android Architecture 1. ApplicationsAn

According to foreign media reports, Android and iOS two operating systems after the monopoly of mobile phones and tablets, began to the smart home, smart cars, living room entertainment, the Internet of things and other areas of expansion. Both Google and Apple have previously launched platform products that connect smartphones and telematics systems. December 18, 2014, Google is planning to develop a car information

Before the introduction of an article on how to write a simple driver and access to the driver's applet, and finally compile the program into the Android kernel source code through the Program Access driver verification is possible, then this article continues this knowledge point, the driver through the JNI connection to create a system service, Provide to the upper-level application Access Service functio

FromArticle: [Android source code] Android graphic rendering (skia EGL OpenGL ES) Android OpenGL ES coordinate system: it is three-dimensional (of course there are also two-dimensional, but there is no Z axis, there is no difference), the coordinate origin of the coordinate syst