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also clean up decrypted temp files on low memory

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This commit is contained in:
Vincent Breitmoser 2016-06-23 23:21:17 +02:00
parent 1eca794346
commit be3543c78d
1 changed files with 24 additions and 7 deletions
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31
k9mail/src/main/java/com/fsck/k9/provider/DecryptedFileProvider.java
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@ -25,7 +25,7 @@ public class DecryptedFileProvider extends FileProvider {
private static final long FILE_DELETE_THRESHOLD_MILLISECONDS = 3 * 60 * 1000;
private static boolean receiverRegistered = false;
private static DecryptedFileProviderCleanupReceiver receiverRegistered = null;
@Override
@ -84,15 +84,32 @@ public class DecryptedFileProvider extends FileProvider {
return directory;
}
@MainThread // no need to synchronize for receiverRegistered
private static void registerFileCleanupReceiver(Context context) {
if (receiverRegistered) {
@Override
public void onTrimMemory(int level) {
if (level < TRIM_MEMORY_COMPLETE) {
return;
}
receiverRegistered = true;
Context context = getContext();
if (context == null) {
return;
}
deleteOldTemporaryFiles(context);
if (receiverRegistered != null) {
context.unregisterReceiver(receiverRegistered);
receiverRegistered = null;
}
}
@MainThread // no need to synchronize for receiverRegistered
private static void registerFileCleanupReceiver(Context context) {
if (receiverRegistered != null) {
return;
}
receiverRegistered = new DecryptedFileProviderCleanupReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
context.registerReceiver(new DecryptedFileProviderCleanupReceiver(), intentFilter);
context.registerReceiver(receiverRegistered, intentFilter);
}
private static class DecryptedFileProviderCleanupReceiver extends BroadcastReceiver {
@ -106,7 +123,7 @@ public class DecryptedFileProvider extends FileProvider {
boolean allFilesDeleted = deleteOldTemporaryFiles(context);
if (allFilesDeleted) {
context.unregisterReceiver(this);
receiverRegistered = false;
receiverRegistered = null;
}
}
}