ev from descendants

);int height;int tempHeight=lp.height;if (tempHeight > 0) {height = MeasureSpec.makeMeasureSpec(tempHeight,MeasureSpec.EXACTLY);} else {height = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);}view.measure(width, height);} 5. if the hiding succeeds, we need to implement the specific functions below. pull-down refresh, release refresh, and refresh the three statuses. The status is changed through gestures. So here we need to implement onTouch, and of course there is OnScrollListener. Y

*/private OnDismissCallback onDismissCallback;/***** set the animation time ** @ param mAnimationTime */public void setmAnimationTime (long mAnimationTime) {this. mAnimationTime = mAnimationTime;}/*** set the deletion callback interface ** @ param onDismissCallback */public void setOnDismissCallback (OnDismi SsCallback onDismissCallback) {this. onDismissCallback = onDismissCallback;} public SwipeDismissListView (Context context) {this (context, null);} public SwipeDismissListView (Context conte

scenario for storing hierarchical data.Here is some data to show the hierarchical structure data in the comment table. Sample table:　　Picture Description Storage Structure:　　　　Analysis of the optimal absence of adjacency tableFor the adjacency table above, many programmers have used it as a default solution, but even so, it still has problems in the past.Analysis 1: Query all descendants of a node (seeking subtree) How to check?Let's take a look at t

Use javascript to obtain the cursor position on the page and the object that triggers the event. use javascript to obtain the cursor position: The Code is as follows: Function mousePosition (ev ){If (ev. pageX | ev. pageY ){Return {X: ev. pageX,Y: ev. pageY};}Return {X:

This article introduces how to use JS to obtain mouse coordinates. If you need it, refer to it. The Code is as follows: Var restrictX;Var restrictY;Var tip;// Mouse coordinatesFunction mousePosition (ev ){Return {X: ev. clientX + document.doc umentElement. scrollLeft-document.doc umentElement. clientLeft,Y: ev. clientY + document.doc umentElement. scrollTop-doc

Native javascript compatibility: currentStyle, scrollTop, event, and bound event IE binding events are attachEventdetachEvent compatibility test instances. If you are interested, refer to section 1. get the width, border color and other css (not line) in the style table is mainly IE6-7 support currentStyle, standard browser support getComputedStyle; Instance: encapsulation Function The Code is as follows: Function getStyle (obj, name ){If (obj. currentStyle ){Return obj. currentStyle [name];

Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 2444 Question: Yes N Students, including M People know each other. Each person can be assigned a room and asked if they can N The students are divided into two parts. The students in each part do not know each other, but the students in the two parts do not know each other. If it can be divided into two parts, the maximum number of rooms is calculated; otherwise, the output is No . Analysis: First, determine whether i

());06 .}[Email protected]08. Public Boolean ontouchevent (motionevent event ){09. If (mgesturedetector. ontouchevent (event ))10. Return true;11. Else12. Return false;13 .}14. Class learngesturelistener extends gesturedetector. simpleongesturelistener {15. @ override16. Public Boolean onsingletapup (motionevent eV ){17. log. D ("onsingletapup", Ev. tostring ());18. Return true;19 .}20. @ override21. Publi

); } }); parentView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { Log.e(TAG, parentView=====onTouch); return false; } }); parentView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.e(TAG, parentView=====onClick); } }); }} Customize

dragoffsety; private windowmanager. layoutparams windowparams; private int scaledtouchslop; private int upscrollbounce; private int downscrollbounce; Public draggridview (context, attributeset attrs) {super (context, attrs );}} 6. Override the touch interception event Method onintercepttouchevent (). @ Override public Boolean onintercepttouchevent (motionevent eV) {If (ev. getaction () = motionevent.

Use JavaScript to get the mouse position: CopyCode The Code is as follows: function mouseposition (EV ){ If (EV. pagex | eV. Pagey ){ Return { X: eV. pagex, Y: eV. Pagey};}Return {X: eV. clientx + document. Body. scrollleft-d

"){ Public void run (){ // Call in a loop: readevent (EV );...Send = preprocessevent (Di, Ev );// The preprocessevent function of the keyq class is actually called....Int keycode = rotatekeycodelocked (EV. keycode );Int [] map = mkeyrotationmap; For (INT I = 0; I If (MAP = keycode) Return map [I + 1]; }//Addlocked (Di, curtime,

source. Ie: window. event. under the srcElement standard: event.tar getnodeName: locate the Tag Name of the element */oUl. onmouseover = function (ev) {var ev = ev | window. event; var target = ev.tar get | ev. srcElement; // alert (target. innerHTML); if (target. nodeName. toLowerCase () = "li") {target. style. backg

1. Get the width, border color and other css (not line) in the style table is mainly IE6-7 support currentStyle, standard browser support getComputedStyle; Instance: encapsulation FunctionCopy codeThe Code is as follows: function getStyle (obj, name ){If (obj. currentStyle ){Return obj. currentStyle [name];}Else {Return getComputedStyle (obj, false) [name];}} Call: getStyle ('color '); 2. Get the scroll distanceDocument. body. scrollTop for standard browsersDocument.doc umentElement. scrollTop

Drag (parent Class)functionDrag (ID) {var_this = This; This. DISX = 0; This. Disy = 0; This. Odiv =document.getElementById (ID); This. Odiv.onmousedown =function(EV) {_this.fndown (EV); return false; };} Drag.prototype.fnDown=function(EV) {var_this = This; varoevent = EV | |event; This. DISX = oevent.clientx- This

for processing. * // @ Overridepublic boolean onInterceptTouchEvent (MotionEvent ev) {if (! IsIntercept (ev) {return false;} return super. onInterceptTouchEvent (ev) ;}@ Overridepublic boolean dispatchTouchEvent (MotionEvent event) {boolean dte = super. dispatchTouchEvent (event); if (MotionEvent. ACTION_UP = event. getAction ()! Dte) {// onItemClickint position

1. Get the width, border color and other css (not line) in the style table is mainly IE6-7 support currentStyle, standard browser support getComputedStyle;Instance: encapsulation FunctionCopy codeThe Code is as follows:Function getStyle (obj, name ){If (obj. currentStyle ){Return obj. currentStyle [name];}Else {Return getComputedStyle (obj, false) [name];}} Call: getStyle ('color ');2. Get the scroll distanceDocument. body. scrollTop for standard browsersDocument.doc umentElement. scrollTop appl

Copy codeThe Code is as follows:Var restrictX;Var restrictY;Var tip;// Mouse coordinatesFunction mousePosition (ev ){Return {X: ev. clientX + document.doc umentElement. scrollLeft-document.doc umentElement. clientLeft,Y: ev. clientY + document.doc umentElement. scrollTop-document.doc umentElement. clientTop};}// Mouse eventFunction mouseMove (

dispatchTouchEvent (MotionEvent ev) {3 final Callback cb = getCallback (); 4 if (mEnableFaceDetection) {5 int pointCount = ev. getPointerCount (); 6 7 switch (ev. getAction () MotionEvent. ACTION_MASK) {8 case MotionEvent. ACTION_POINTER_DOWN: 9 10 ....... 11 12 return cb! = Null ! IsDestroyed () mFeatureId In other words, under normal circumstances, the curr

indicates that the return type of the method is void.Click the non-MyButton area and the results are as follows:Click on the MyButton area and the results are as follows:With these two results we can find that the event is activity->viewgroup->view from the top down.However, there is a non-correspondence between the two results, that is, the first result of the Mylayout Onintercepttouchevent method is not executed when lifting, and the second result is executed. This is because the Dispatchtouc