a5f1b5c629
1. Don't create UiBlockerController if there is no related controller 2. Don't update visibility if UiBlockerController is null 3. Use findPreference() from DashboardFragment, which already has null check. Change-Id: Iee24c64317fb9d5a1cf2076d25728af485d390c5 Fixes: 122807414 Fixes: 122805831 Test: RunSettingsRoboTests
102 lines
3.0 KiB
Java
102 lines
3.0 KiB
Java
/*
|
|
* Copyright (C) 2019 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package com.android.settings.dashboard;
|
|
|
|
import android.util.Log;
|
|
|
|
import androidx.annotation.NonNull;
|
|
|
|
import com.android.settings.core.BasePreferenceController;
|
|
import com.android.settingslib.utils.ThreadUtils;
|
|
|
|
import java.util.HashSet;
|
|
import java.util.List;
|
|
import java.util.Set;
|
|
import java.util.concurrent.CountDownLatch;
|
|
import java.util.concurrent.TimeUnit;
|
|
|
|
/**
|
|
* Control ui blocker data and check whether it is finished
|
|
*
|
|
* @see BasePreferenceController.UiBlocker
|
|
* @see BasePreferenceController.UiBlockListener
|
|
*/
|
|
public class UiBlockerController {
|
|
private static final String TAG = "UiBlockerController";
|
|
private static final int TIMEOUT_MILLIS = 500;
|
|
|
|
private CountDownLatch mCountDownLatch;
|
|
private boolean mBlockerFinished;
|
|
private Set<String> mKeys;
|
|
private long mTimeoutMillis;
|
|
|
|
public UiBlockerController(@NonNull List<String> keys) {
|
|
this(keys, TIMEOUT_MILLIS);
|
|
}
|
|
|
|
public UiBlockerController(@NonNull List<String> keys, long timeout) {
|
|
mCountDownLatch = new CountDownLatch(keys.size());
|
|
mBlockerFinished = keys.isEmpty();
|
|
mKeys = new HashSet<>(keys);
|
|
mTimeoutMillis = timeout;
|
|
}
|
|
|
|
/**
|
|
* Start background thread, it will invoke {@code finishRunnable} if any condition is met
|
|
*
|
|
* 1. Waiting time exceeds {@link #mTimeoutMillis}
|
|
* 2. All background work that associated with {@link #mCountDownLatch} is finished
|
|
*/
|
|
public boolean start(Runnable finishRunnable) {
|
|
if (mKeys.isEmpty()) {
|
|
// Don't need to run finishRunnable because it doesn't start
|
|
return false;
|
|
}
|
|
ThreadUtils.postOnBackgroundThread(() -> {
|
|
try {
|
|
mCountDownLatch.await(mTimeoutMillis, TimeUnit.MILLISECONDS);
|
|
} catch (InterruptedException e) {
|
|
Log.w(TAG, "interrupted");
|
|
}
|
|
mBlockerFinished = true;
|
|
ThreadUtils.postOnMainThread(finishRunnable);
|
|
});
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return {@code true} if all work finished
|
|
*/
|
|
public boolean isBlockerFinished() {
|
|
return mBlockerFinished;
|
|
}
|
|
|
|
/**
|
|
* Count down latch by {@code key}. It only count down 1 time if same key count down multiple
|
|
* times.
|
|
*/
|
|
public boolean countDown(String key) {
|
|
if (mKeys.remove(key)) {
|
|
mCountDownLatch.countDown();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|