@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
LogUtils.e("ada", "0 onInterceptTouchEvent");
final int action = ev.getAction();
if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) {
return true;
}
final float x = ev.getX();
final float y = ev.getY();
switch (action) {
case MotionEvent.ACTION_MOVE:
if (mCurScreen == 1) {
LinearLayout view = (LinearLayout) getChildAt(1);
if (y < view.getMeasuredHeight()) {
ScrollLayout1 l = (ScrollLayout1) view.getChildAt(0);
int curscreen = l.getCurScreen();
curscreen++;
int deltaX = (int) (mLastMotionX - x);
if (curscreen == 1) {
if (deltaX < 0) {
return true;
} else {
return false;
}
} else {
if (curscreen == l.getChildCount()) {
if (deltaX > 0) {
return true;
} else {
return false;
}
} else {
return false;
}
}
}
}
LogUtils.e(TAG, "0 onInterceptTouchEvent-ACTION_MOVE");
final int xDiff = (int) Math.abs(mLastMotionX - x);
if (xDiff > mTouchSlop) {
mTouchState = TOUCH_STATE_SCROLLING;
}
break;
case MotionEvent.ACTION_DOWN:
mLastMotionX = x;
mLastMotionY = y;
mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING;
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
mTouchState = TOUCH_STATE_REST;
break;
}
return mTouchState != TOUCH_STATE_REST;
}
public ScrollLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mScroller = new Scroller(context);
mCurScreen = mDefaultScreen;
mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
LogUtils.setLoggerLevel(LogUtils.ERROR);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
LogUtils.e("ada", "0 onTouchEvent");
// 是否可滑动
if (!isScroll) {
return false;
}
Launcher.view.onTouchEvent(event);
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(event);
final int action = event.getAction();
final float x = event.getX();
final float y = event.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
// LogUtils.e(TAG, "event down!");
if (!mScroller.isFinished()) {
mScroller.abortAnimation();
}
mLastMotionX = x;
// ---------------New Code----------------------
mLastMotionY = y;
// ---------------------------------------------
return true;
case MotionEvent.ACTION_MOVE:
LogUtils.e(TAG, "0 onTouchEvent-ACTION_MOVE");
int deltaX = (int) (mLastMotionX - x);
// ---------------New Code----------------------
int deltaY = (int) (mLastMotionY - y);
if (Math.abs(deltaX) < 200 && Math.abs(deltaY) > 10) break;
mLastMotionY = y;
// -------------------------------------
mLastMotionX = x;
scrollBy(deltaX, 0);
break;
case MotionEvent.ACTION_UP:
// LogUtils.e(TAG, "event : up");
// if (mTouchState == TOUCH_STATE_SCROLLING) {
final VelocityTracker velocityTracker = mVelocityTracker;
velocityTracker.computeCurrentVelocity(1000);
int velocityX = (int) velocityTracker.getXVelocity();
// LogUtils.e(TAG, "velocityX:" + velocityX);
if (velocityX > SNAP_VELOCITY && mCurScreen > 0) {
// Fling enough to move left
// LogUtils.e(TAG, "snap left");
snapToScreen(mCurScreen - 1);
} else if (velocityX < -SNAP_VELOCITY && mCurScreen < getChildCount() - 1) {
// Fling enough to move right
// LogUtils.e(TAG, "snap right");
snapToScreen(mCurScreen + 1);
} else {
snapToDestination();
}
if (mVelocityTracker != null) {
mVelocityTracker.recycle();
mVelocityTracker = null;
}
// }
mTouchState = TOUCH_STATE_REST;
break;
case MotionEvent.ACTION_CANCEL:
mTouchState = TOUCH_STATE_REST;
break;
}
return true;
}
