Commit 649a7b0

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wanjian

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1 parent 02e3803 commit 649a7b0Copy full SHA for 649a7b0

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Original file line number	Diff line number	Diff line change
`@@ -21,20 +21,29 @@ int getSafeChildCount(int groupIndex) {`
`21`	`21`	`}`
`22`	`22`
`23`	`23`	`public void collapseGroup(int groupIndex) {`
	`24`	`+ if (groupIndex < 0 \|\| groupIndex >= getSafeGroupCount()) {`
	`25`	`+ return;`
	`26`	`+ }`
`24`	`27`	`if (isExpanded(groupIndex)) {`
`25`	`28`	`notifyChildItemRangeRemoved(groupIndex, 0, getSafeChildCount(groupIndex));`
`26`	`29`	`isCollapsed.set(groupIndex);`
`27`	`30`	`}`
`28`	`31`	`}`
`29`	`32`
`30`	`33`	`public void expandGroup(int groupIndex) {`
	`34`	`+ if (groupIndex < 0 \|\| groupIndex >= getSafeGroupCount()) {`
	`35`	`+ return;`
	`36`	`+ }`
`31`	`37`	`if (isExpanded(groupIndex) == false) {`
`32`	`38`	`isCollapsed.clear(groupIndex);`
`33`	`39`	`notifyChildItemRangeInserted(groupIndex, 0, getSafeChildCount(groupIndex));`
`34`	`40`	`}`
`35`	`41`	`}`
`36`	`42`
`37`	`43`	`public boolean isExpanded(int groupIndex) {`
	`44`	`+ if (groupIndex < 0 \|\| groupIndex >= getSafeGroupCount()) {`
	`45`	`+ return false;`
	`46`	`+ }`
`38`	`47`	`return !isCollapsed.get(groupIndex);`
`39`	`48`	`}`
`40`	`49`

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