there will be an if-else condition inside another if-else. If, if-else, if-else-if, jump, switch-case, etc., are some of the other decision making statements in Java. Now, let us see the Nested-if Statement in
int grp_id) { struct sk_buff *msg; /* genl is still initialising */ if (!init_net.genl_sock) return 0; switch (event) { case CTRL_CMD_NEWFAMILY: case CTRL_CMD_DELFAMILY: WARN_ON(grp); msg = ctrl_build_family_msg(family, 0, 0, event); break; case CTRL...
switch (action) { case MotionEvent.ACTION_DOWN: { … } break; case MotionEvent.ACTION_POINTER_DOWN: { … } break; case MotionEvent.ACTION_MOVE: { … if (mScrollState == SCROLL_STATE_DRAGGING) { mLastTouchX = x - mScrollOffset[0]; mLastTouchY = y - mScrollOffset[1]; if (scroll...
#include <iostream> using namespace std; int main () { // local variable declaration: int a = 100; int b = 200; switch(a) { case 100: cout << "This is part of outer switch" << endl; switch(b) { case 200: cout << "This is part of inner switch" << endl; } } cout <...
In the above example, we are first initializing two variables to 0.0 and 1.0 respectively. We then have a switch statement which evaluates the value of the variable i. Based on the value of the variable it will execute the relevant case containing nested set of statements. The output of ...
//RecyclerView.javabooleanonInterceptTouchEvent(MotionEvent e){switch(action){caseMotionEvent.ACTION_DOWN://down事件//纵轴、触摸中(非惯性)startNestedScroll(nestedScrollAxis,TYPE_TOUCH);break;}returnmScrollState==SCROLL_STATE_DRAGGING;}booleanonTouchEvent(MotionEvent e){switch(action){caseMotionEvent.ACTIO...
问一旦NestedScrollView崩溃，CollapsingToolbarLayout就停止滚动ENCoordinatorLayout是在 Google IO/15 大会...
Java break StatementJava's break statement is mainly used to break the flow of execution. It has three uses in Java: to terminate the execution of a switch statement. to exit a loop. to use as goto.Java's break statement can be labeled or unlabeled. An unlabeled break is used to ...
# NestedScrollView.java publicbooleanonTouchEvent(MotionEvent ev){ switch(ev.getActionMasked()){ caseMotionEvent.ACTION_MOVE: { ... 省略... // 如果父 view 消费了事件,则返回 true if(dispatchNestedPreScroll(0, deltaY, mScrollConsumed, mScrollOffset...
四、原理 原理其实就是看内部View什么时候回调NestedScrollingParent各种方法的,直接定位到内部View的onTouchEvent: @Override public boolean onTouchEvent(MotionEvent e) { switch (action) { case MotionEvent.ACTION_DOWN: { int nestedScrollAxis = ViewCompat.SCROLL_AXIS_NONE; if (canScrollHorizontally) {...