programmable trackball

Syntax (syntax ): Android: reqhardkeyboard = ["true" | "false"]Android: reqkeyboardtype = ["undefined" | "nokeys" | "qwerty" | "twelvekey"]Android: reqnavigation = ["undefined" | "nonav" | "DPAD" | "trackball" | "Wheel"]Android: reqtouchscreen = ["undefined" | "notouch" | "stylus" | "finger"]/> Included in (contained in ): Description ): This attribute is used to specify the applicationProgramRequired hardware and software features. For exa

are called event listeners, which are used to intercept the "tickets" of user interaction with your interface ". When you use Event Listeners more commonly to listen for user actions, you may always have to expand a View class to create a custom component. Maybe you want to extend the button class to make some things more fancy. In this case, you can enable the event processor Event Handlers class to define default event behavior for your class. Event Listeners The event listener is an interfac

(const quaternion Q){// Note the order of the mult, I. e. Q comes afterM_orientation = Q * m_orientation;} Void camera: Rotate (const vector3 axis, const radian angle){Quaternion Q;Q. fromangleaxis (angle, axis );Rotate (Q );} Void camera: Roll (const glfloat angle) // In radian{Vector3 zaxis = m_orientation * vector3: unit_z;Rotate (zaxis, angleinradian );} Void camera: yaw (const glfloat angle) // in degree{Vector3 yaxis;{// Rotate around local Y axisYaxis = m_orientation * vector3: unit_y

Trackball This is a bit similar to the mouse on the PC and can be used for navigation. Therefore, focus is available, but the actual operation is not significant, because the whole screen is touch and what else to do with navigation, do you need to move the focus to a certain control with the trackball and then click it? In addition, this focus is very difficult to control and adds endless troubles to devel

Syntax: Contained in: Description: Indicates what hardware and software features the application requires. for example, an application might specify that it requires a physical keyboardor a particle navigation device, like a trackball. the specification isused to avoid installing the application on devices where it will not work. Note: Most apps shocould not use this manifest tag.You shoshouldAlwaysSupport input wi

First,Monkey test Introduction Monkey 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 pressure Force test, the duration of the procedure will be abnormal.Ii.Introduction of Monkey procedure 1) The Monkey program is provided by the Android system , written in the Java language, in the Android file system, the

buttonpublic class button {onclicklistener listener; Public void click () {listener. onclick (this);} public void setonclicklistener (onclicklistener listener) {This. listener = listener;} 3. assign the onclicklistener interface object to the public class activity {public activity () {} public static void main (string [] ARGs) {button = new button (); button. setonclicklistener (New onclicklistener () {@ override public void onclick (Button B) {system. out. println ("clicked") ;}}); button. cli

the mobile phone screen. Public booleanonTouchEvent (MotionEvent event) OnFocusChanged (), which can only be rewritten in View. This method is a focus change callback method. When a control overwrites this method, when the focus changes, this method is automatically called to handle the focus change events. Protected void onFocusChanged (boolean gainFocus, int direction, Rect previouslyFocusedRect) 2. listener-based event processing: bind a specific event listener to the android component. The

SYNTAX (SYNTAX ): Android: reqHardKeyboard = ["true" | "false"]Android: reqKeyboardType = ["undefined" | "nokeys" | "qwerty" | "twelvekey"]Android: reqNavigation = ["undefined" | "nonav" | "dpad" | "trackball" | "wheel"]Android: reqTouchScreen = ["undefined" | "notouch" | "stylus" | "finger"]/> Included IN (contained in ): DESCRIPTION ): This attribute is used to specify the hardware and software features required by the application. For example, an