@Override
public void onViewPositionChanged(View changedView, int left, int top, int dx, int dy) {
LogUtil.i(
TAG,
"onViewPositionChanged:" + "left:" + left + ",top:" + top + ",dx:" + dx + ",dy:" + dy);
mTop = top;
mDragOffset = (float) top / mDragRange;
LogUtil.i(TAG, "onViewPositionChanged:" + "mDragOffset:" + mDragOffset);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mBgView.setAlpha(mDragOffset);
}
if (!isUnderEnterprise) {
if (Constants.hasEnterpriseAccountLoggedIn()) {
ImageLoader.getInstance()
.displayImage(
Constants.userInfo.getEnterprise().getLogo(),
mHeaderView,
DisplayImageOptionsUtil.flagDisplayOpts);
mBgView.setVisibility(View.GONE);
} else {
if (mDragOffset < 1) {
mHeaderView.setImageResource(R.drawable.flag);
mBgView.setVisibility(View.GONE);
} else {
mHeaderView.setImageResource(R.drawable.flag_up);
mBgView.setVisibility(View.VISIBLE);
}
}
} else {
mHeaderView.setImageResource(R.drawable.flag);
mBgView.setVisibility(View.GONE);
}
requestLayout();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
mDragHelper.processTouchEvent(event);
final int action = event.getAction();
final float x = event.getX();
final float y = event.getY();
// 触摸点是否落在HeaderView上
boolean isHeaderViewUnder = mDragHelper.isViewUnder(mHeaderView, (int) x, (int) y);
switch (action & MotionEventCompat.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
{
mInitialMotionX = x;
mInitialMotionY = y;
break;
}
case MotionEvent.ACTION_UP:
{
final float dx = x - mInitialMotionX;
final float dy = y - mInitialMotionY;
final float slop = mDragHelper.getTouchSlop();
LogUtil.i(TAG, "dx * dx + dy * dy = " + dx * dx + dy * dy);
LogUtil.i(TAG, "slop * slop = " + slop * slop);
LogUtil.i(TAG, "mDragOffset:" + mDragOffset);
if (dx * dx + dy * dy < slop * slop && isHeaderViewUnder) {
if (Constants.hasEnterpriseAccountLoggedIn()) {
if (onFlagAreaExpandLis != null) {
onFlagAreaExpandLis.onSAASCMSSwitch();
}
} else {
if (mDragOffset == 0) {
minimize();
} else {
maximize();
}
}
} else {
if (Constants.hasEnterpriseAccountLoggedIn()) {
if (onFlagAreaExpandLis != null) {
onFlagAreaExpandLis.onSAASCMSSwitch();
}
}
}
break;
}
}
return isHeaderViewUnder && isViewHit(mHeaderView, (int) x, (int) y)
|| isViewHit(mContentView, (int) x, (int) y);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
mBgView.layout(l, t, r, b);
int dragViewHeight = mHeaderView.getMeasuredHeight();
int dragViewWidth = mHeaderView.getMeasuredWidth();
mDragRange = mContentView.getMeasuredHeight(); // parentViewHeight -
// dragViewHeight;
if (Constants.hasEnterpriseAccountLoggedIn()) {
mTop = 0;
}
LogUtil.d(
TAG,
"onLayout:"
+ "changed:"
+ changed
+ ",l:"
+ l
+ ",t:"
+ t
+ ",r:"
+ r
+ ",b:"
+ b
+ ",mDragRange"
+ mDragRange
+ ",mtop----"
+ mTop
+ " drageViewWidth----"
+ dragViewWidth
+ " dragViewHeight----"
+ dragViewHeight);
mContentView.layout(0, 0, r, mTop);
mHeaderView.layout(
20, mTop + mHeaderView.getPaddingTop(), 20 + dragViewWidth, mTop + dragViewHeight);
}
@Override
protected void onFinishInflate() {
LogUtil.d(TAG, "onFInishInflate");
mHeaderView = (ImageView) findViewById(R.id.view_header);
mContentView = findViewById(R.id.view_content);
mBgView = new View(getContext());
mBgView.setBackgroundResource(R.color.translucent);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
mBgView.setAlpha(0.0f);
}
mBgView.setVisibility(View.GONE);
mBgView.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
maximize();
}
});
addView(mBgView, 0);
if (isUnderEnterprise) {
mHeaderView.setImageResource(R.drawable.flag);
}
}
@Override
public void onViewReleased(View releasedChild, float xvel, float yvel) {
LogUtil.i(TAG, "onViewReleased:" + "xvel:" + xvel + ",yvel:" + yvel);
// yvel Fling产生的值，yvel > 0 则是快速往下Fling || yvel < 0 则是快速往上Fling
int top = getPaddingTop();
if (yvel > 0 || (yvel == 0 && mDragOffset > 0.4f) /* 后面这个小括号里判断处理拖动之后停下来但是未松手的情况 */) {
top += mDragRange;
}
if (Constants.hasEnterpriseAccountLoggedIn()) {
top = 0;
}
mDragHelper.settleCapturedViewAt(releasedChild.getLeft(), top);
invalidate();
}
public void onResume(boolean isUnderEnterprise) {
this.isUnderEnterprise = isUnderEnterprise;
if (isUnderEnterprise) {
mHeaderView.setImageResource(R.drawable.flag);
} else {
if (Constants.hasEnterpriseAccountLoggedIn()) {
LogUtil.e(TAG, "-------------------login--------------->>>>");
ImageLoader.getInstance()
.displayImage(
Constants.userInfo.getEnterprise().getLogo(),
mHeaderView,
DisplayImageOptionsUtil.flagDisplayOpts);
} else {
mHeaderView.setImageResource(R.drawable.flag);
}
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = MotionEventCompat.getActionMasked(ev);
if (action != MotionEvent.ACTION_DOWN) {
mDragHelper.cancel();
return super.onInterceptTouchEvent(ev);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
mDragHelper.cancel();
return false;
}
final float x = ev.getX();
final float y = ev.getY();
boolean interceptTap = false;
switch (action) {
case MotionEvent.ACTION_DOWN:
mInitialMotionX = x;
mInitialMotionY = y;
interceptTap = mDragHelper.isViewUnder(mHeaderView, (int) x, (int) y);
break;
case MotionEvent.ACTION_MOVE:
final float adx = Math.abs(x - mInitialMotionX);
final float ady = Math.abs(y - mInitialMotionY);
final int slop = mDragHelper.getTouchSlop();
LogUtil.d(TAG, "adx:" + adx + " ady:" + ady + " slop:" + slop);
if (ady > slop && adx > ady) {
mDragHelper.cancel();
return false;
}
break;
}
return mDragHelper.shouldInterceptTouchEvent(ev) || interceptTap;
}