PawletOS/app_Settings
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Fix monkey crash by guarding singleton initializing

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Fixes: 35203476
Test: Run monkey test and observe no crash happens.
      adb shell monkey -p com.google.android.launcher -p com.android.settings
           -c android.intent.category.LAUNCHER --ignore-security-exceptions
	   --monitor-native-crashes -s 454 -v -v -v 125000
Change-Id: Ib13afcc4e14470510f3ccbb20d7e7d6009347149
This commit is contained in:
Tadashi G. Takaoka
2017-02-10 16:58:45 +09:00
parent ac3b32932a
commit 23372e8994
1 changed files with 24 additions and 8 deletions
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32
src/com/android/settings/search/DynamicIndexableContentMonitor.java
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@@ -129,7 +129,7 @@ public final class DynamicIndexableContentMonitor implements
mContext = context;
mIndex = index;
PACKAGE_CHANGE_MONITOR.register(context);
PACKAGE_CHANGE_MONITOR.registerMonitor(context);
mHasFeaturePrinting = context.getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_PRINTING);
if (mHasFeaturePrinting) {
@@ -154,7 +154,7 @@ public final class DynamicIndexableContentMonitor implements
public void unregister(Activity activity, int loaderId) {
if (mIndex == null) return;
PACKAGE_CHANGE_MONITOR.unregister();
PACKAGE_CHANGE_MONITOR.unregisterMonitor();
if (mHasFeaturePrinting) {
activity.getLoaderManager().destroyLoader(loaderId);
}
@@ -240,15 +240,31 @@ public final class DynamicIndexableContentMonitor implements
private static class PackageChangeMonitor extends PackageMonitor {
private static final String TAG = PackageChangeMonitor.class.getSimpleName();
// Null if not initialized.
// Null if not initialized. Guarded by {@link #mLock}.
@Nullable private PackageManager mPackageManager;
private final Object mLock = new Object();
public void register(Context context) {
mPackageManager = context.getPackageManager();
public void registerMonitor(Context context) {
synchronized (mLock) {
if (mPackageManager != null) {
return;
}
mPackageManager = context.getPackageManager();
// Start tracking packages. Use background thread for monitoring. Note that no need to
// unregister this monitor. This should be alive while Settings app is running.
register(context, null /* thread */, UserHandle.CURRENT, false);
// Start tracking packages. Use background thread for monitoring. Note that no need
// to unregister this monitor. This should be alive while Settings app is running.
super.register(context, null /* thread */, UserHandle.CURRENT, false);
}
}
public void unregisterMonitor() {
synchronized (mLock) {
if (mPackageManager == null) {
return;
}
super.unregister();
mPackageManager = null;
}
}
// Covers installed, appeared external storage with the package, upgraded.