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Merge "Fix bug #12066726 java.lang.NullPointerException at android.widget.CalendarView.onScroll(CalendarView.java:1216) - DO NOT MERGE" into klp-dev

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This commit is contained in:
Fabrice Di Meglio
2014-03-06 00:29:34 +00:00
committed by Android (Google) Code Review
parent 2b58a29f82 25d9ce4058
commit 1ff2df6194
1 changed files with 28 additions and 25 deletions
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53
core/java/android/widget/CalendarView.java
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@@ -1210,35 +1210,38 @@ public class CalendarView extends FrameLayout {
child = (WeekView) view.getChildAt(offset);
}
// Find out which month we're moving into
int month;
if (mIsScrollingUp) {
month = child.getMonthOfFirstWeekDay();
} else {
month = child.getMonthOfLastWeekDay();
}
// And how it relates to our current highlighted month
int monthDiff;
if (mCurrentMonthDisplayed == 11 && month == 0) {
monthDiff = 1;
} else if (mCurrentMonthDisplayed == 0 && month == 11) {
monthDiff = -1;
} else {
monthDiff = month - mCurrentMonthDisplayed;
}
// Only switch months if we're scrolling away from the currently
// selected month
if ((!mIsScrollingUp && monthDiff > 0) || (mIsScrollingUp && monthDiff < 0)) {
Calendar firstDay = child.getFirstDay();
if (child != null) {
// Find out which month we're moving into
int month;
if (mIsScrollingUp) {
firstDay.add(Calendar.DAY_OF_MONTH, -DAYS_PER_WEEK);
month = child.getMonthOfFirstWeekDay();
} else {
firstDay.add(Calendar.DAY_OF_MONTH, DAYS_PER_WEEK);
month = child.getMonthOfLastWeekDay();
}
// And how it relates to our current highlighted month
int monthDiff;
if (mCurrentMonthDisplayed == 11 && month == 0) {
monthDiff = 1;
} else if (mCurrentMonthDisplayed == 0 && month == 11) {
monthDiff = -1;
} else {
monthDiff = month - mCurrentMonthDisplayed;
}
// Only switch months if we're scrolling away from the currently
// selected month
if ((!mIsScrollingUp && monthDiff > 0) || (mIsScrollingUp && monthDiff < 0)) {
Calendar firstDay = child.getFirstDay();
if (mIsScrollingUp) {
firstDay.add(Calendar.DAY_OF_MONTH, -DAYS_PER_WEEK);
} else {
firstDay.add(Calendar.DAY_OF_MONTH, DAYS_PER_WEEK);
}
setMonthDisplayed(firstDay);
}
setMonthDisplayed(firstDay);
}
mPreviousScrollPosition = currScroll;
mPreviousScrollState = mCurrentScrollState;
}