1 | public void addListener(INotifyChangedListener listener)↵ | | 1 | public void addListener(INotifyChangedListener listener)↵
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2 | {↵ | | 2 | {↵
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3 | if (changeNotifier == null)↵ | | 3 | if (changeNotifier == null)↵
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4 | {↵ | | 4 | {↵
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5 | changeNotifier = new ChangeNotifier();↵ | | 5 | changeNotifier = new ChangeNotifier();↵
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6 | }↵ | | 6 | }↵
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7 | changeNotifier.addListener(listener);↵ | | 7 | changeNotifier.addListener(listener);↵
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8 | }↵ | | 8 | }↵
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9 | /**↵ | | |
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10 | * Removes a notification listener.↵ | | |
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11 | */↵ | | |
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12 | public void removeListener(INotifyChangedListener listener)↵ | | 9 | public void removeListener(INotifyChangedListener listener)↵
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13 | {↵ | | 10 | {↵
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14 | if (changeNotifier != null)↵ | | 11 | if (changeNotifier != null)↵
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15 | {↵ | | 12 | {↵
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16 | changeNotifier.removeListener(listener); | | 13 | changeNotifier.removeListener(listener);
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