programmable trackball

using a custom view in the xml layout, you must use the "fully qualified class name" Common View component callback methods: Android provides some event processing callback methods for GUI components. Taking View as an example, the following methods are provided: ① Trigger a screen event on this component: booleanOnTouchEvent(MotionEvent event );② When a button is pressed on the component: booleanOnKeyDown(Int keyCode, KeyEvent event );③ When a button on the component is released: booleanOn

-500-96 = 6994mb. Another detail is that when you use the partition software to perform partition operations, the partition size may not be exactly the above value, more or less, or it doesn't matter if there is a decimal number. 4. Partitioning Method The above mentioned a lot of SD card related knowledge, may be a lot of oil are impatient, so let's talk about the specific SD card partition operations. To partition, You need to first enter the recovery (recovery mode, flash mode). The mag

allowing an application to solve only one problem for the user has to be said to be a joke of IOS. 6. No focus Some Android mobile phones have trackball and other input devices. you can scroll the trackball to focus on a certain control on the interface. This can help users with some touch barrier. More importantly, with the release of Android @ Home, the android system may appear on refrigerators, washin

In the previous section, the Monkey tool was described using the environment of the building, portal. In this section I will describe in detail the use of the Monkey tool. First, Monkey test introduction Monkey testing is a means of Android platform automation, through the monkey program to simulate the user touch screen, sliding trackball, keystrokes and other operations to test the program on the device, testing the duration of the program is abnorm

One, Monkey command format[adb shell] monkey [optiongs] ADB Shell Monkey-help>>d:help.txtUsage:monkey [-P allowed_package [-P allowed_package] ...][-C Main_category [-C main_category] ...][--ignore-crashes] [--ignore-timeouts][--ignore-security-exceptions][--monitor-native-crashes] [--ignore-native-crashes][--kill-process-after-error] [--hprof][--pct-touch PERCENT] [--pct-motion PERCENT][--pct-trackball PERCENT] [--pct-syskeys PERCENT][--pct-nav PERCE

Listeners The event listener is an interface of the View class and contains a separate callback method. These methods are called by the android framework when the listener registered in the view is triggered by user interface operations. The following callback methods are included in the event listener interface:Onclick () Included in view. onclicklistener. It is called when the user touches this item (in touch mode), or focuses on this item through a browser key or a

subclasses. onSizeChanged(int, int, int, int) Called when the size of this view has changed.Called when the dimension of the view changes. Drawing onDraw(android.graphics.Canvas) Called when the view should render (rendering) its content.Called when the view needs to render his content Event processing onKeyDown(int, KeyEvent) Called when a new hardware key event occurs.Called when a new hardware press event occurs

direction is lost. Menu key: used for calling and storage. The purpose is to retain more space for content display. Search key: marketing the google search business Shut down and lock the screen like other mobile phones. Trackball touchpad Volume key (-+) and photo key Global return buttons It can be cross-application. For example, If you enable application a and go back to application B through the notification system, you can go back with the r

Ext.: http://blog.csdn.net/huangbiao86/article/details/8490743Shell, Monkey, System, Android, File system Monkey, example, introductionFirst, Monkey test introductionMonkey testing is an automated test of the Android platform, through the monkey program to simulate the user touch screen, sliding trackball, keys and other operations to the device's program on the pressureForce test, the duration of the procedure will be abnormal.Ii. Introduction of Mon

. This method can also stimulate any button message listener. Parameters Events to be distributed Return Value If this event is processed, true is returned; otherwise, false is returned. Public voidHide() Remove the controller from the screen. Public booleanIsShowing() (Translator's note: determines whether the media controller is visible .) Public voidOnFinishInflate() Called when the XML file loads the view. This function is called at the final stage of loading, and all child views have bee

information than startup prompts, test completion, and end results. Level 1 provides more detailed testing information, such as events sent individually to the ActivITy. Level 2 provides more detailed setup information, such as the Activity that was selected or unchecked in the test. The following example uses "-v-v-V", which represents the output of the most verbose monkey log. - - 800000 >c:\long_radio_report.txtMonkeyIntroduction to TestingMonkey testing is a means of automated testing of t

, which is often referred to as an interrupt request line.Back to top of pageAPIC vs 8259AThe CPU of the X86 computer provides only two external pins for interrupts: NMI and INTR. Where NMI is an unshielded interrupt, which is typically used for power-down and physical memory parity; The INTR is a shielded interrupt that can be interrupted by setting the interrupt screen bit, which is primarily used to accept interrupt signals from external hardware, which are passed to the CPU by the interrupt

the X86 computer provides only two external pins for interrupts: NMI and INTR. Where NMI is an unshielded interrupt, it is usually used for power off and physical memory parity; Intr is a shielded interrupt that can be interrupted by setting the interrupt shield, which is primarily used to accept interrupt signals from external hardware that are passed to the CPU by the interrupt controller. There are two common interrupt controllers: 1. Programmable

The rendering pipeline is the entire process of OpenGL-rendered scenes and is the process of rendering the objects to the plane. OpenGL's rendering pipeline went through the traditional fixed pipeline (the steps in the rendering process are defined beforehand) to the current programmable way (using the shader implementation), which is mainly due to the development of the current graphics card, the new graphics card provides user-

Introduction to FPGA Introductory knowledge In recent years, due to the use of Field Programmable gate Array (FPGA) is very flexible, and can be unlimited programming, has been more and more electronic programmers love, many friends want to learn some of the FPGA primer to prepare for the industry, now on the FPGA introduction knowledge of books, forums, Tutorials are a variety of different types. The following author also through the search for

), direct input, direct play, direct sound, direct show, direct setup, direct media objects, and other components, it provides a complete set of Multimedia Interface solutions. Its outstanding performance in 3D graphics makes its other components almost ignored. The outstanding performance of direct graphics and Microsoft's influence make countless hardware vendors fear and constantly follow the changes to develop new graphics processor architectures. At the same time, ATI and NVIDIA are still f

1 Basic ConceptsThe timing mechanism, along with some more visible kernel activity (such as check timeouts), drives the process to switch.Two main timing measurements: Save the current time and date so that they can be returned to the user program through the Ftime () and gettimeofday () system calls. The maintenance timer, which can tell the kernel or user program that a time interval has passed. Timing measurements are performed by several hardware circuits based on fixed-fre

function, there is the exposure of programmable objects, programming objects have public property methods or events, than such as COM interfaces or. NET class library interfaces. There is also a web-based WebService programming interface. In general, for DOM, the programming interface is represented as a programming interface for programmable objects, where the DOM publishes several

There is a adb shell very practical command called input , through which you can do some interesting things.inputThe complete help information for the command is as follows:Usage:input [;]> [...] The Sources Are:mouse keyboard joystick touchnavigation Touchpad Trackball Stylus dpad gesture touchscreen gamepadthe com Mands and default sources Are:text> (default:touchscreen) keyevent [--longpress] > ... (Default:keyboard) Tap > > (default:touchscreen) s

that everyone is familiar with computer memory, so I will not talk about it here. I just want to mention it briefly. The main memory of GPU and CPU is implemented by DRAM, while the cache is implemented by the lower-latency SRAM. The storage structure of GPU and CPU is basically the same. In addition, CUDA better presents the memory structure to users, so as to control program behavior more flexibly.CUDA Memory Model For programmers, memory can be divided into the following two types: