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Fix npe.

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This commit is contained in:
Andrew Wilson 2015-08-26 14:14:44 -07:00
parent b122969624
commit c6ae330320
1 changed files with 3 additions and 1 deletions
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2
packages/flutter/lib/widgets/mimic.dart
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@ -98,8 +98,10 @@ class Mimic extends GlobalKeyWatcher {
void _setMimicable(widget) { void _setMimicable(widget) {
if (_mimicable != widget) { if (_mimicable != widget) {
_stopMimic(); _stopMimic();
if (widget != null) {
widget.startMimic(); widget.startMimic();
} }
}
setState(() { setState(() {
_mimicable = widget; _mimicable = widget;
}); });