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Merge "Guard against crashes from data saver listeners" into nyc-dev

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This commit is contained in:
Jason Monk
2016-04-12 15:39:07 +00:00
committed by Android (Google) Code Review
parent a20e8f314f ca4cc55517
commit 557c716a3a
1 changed files with 14 additions and 9 deletions
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9
packages/SystemUI/src/com/android/systemui/statusbar/policy/DataSaverController.java
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@@ -33,26 +33,31 @@ public class DataSaverController {
} }
private void handleRestrictBackgroundChanged(boolean isDataSaving) { private void handleRestrictBackgroundChanged(boolean isDataSaving) {
final int N = mListeners.size(); synchronized (mListeners) {
for (int i = 0; i < N; i++) { for (int i = 0; i < mListeners.size(); i++) {
mListeners.get(i).onDataSaverChanged(isDataSaving); mListeners.get(i).onDataSaverChanged(isDataSaving);
} }
} }
}
public void addListener(Listener listener) { public void addListener(Listener listener) {
synchronized (mListeners) {
mListeners.add(listener); mListeners.add(listener);
if (mListeners.size() == 1) { if (mListeners.size() == 1) {
mPolicyManager.registerListener(mPolicyListener); mPolicyManager.registerListener(mPolicyListener);
} }
}
listener.onDataSaverChanged(isDataSaverEnabled()); listener.onDataSaverChanged(isDataSaverEnabled());
} }
public void remListener(Listener listener) { public void remListener(Listener listener) {
synchronized (mListeners) {
mListeners.remove(listener); mListeners.remove(listener);
if (mListeners.size() == 0) { if (mListeners.size() == 0) {
mPolicyManager.unregisterListener(mPolicyListener); mPolicyManager.unregisterListener(mPolicyListener);
} }
} }
}
public boolean isDataSaverEnabled() { public boolean isDataSaverEnabled() {
return mPolicyManager.getRestrictBackground(); return mPolicyManager.getRestrictBackground();