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/*
* Copyright (C) 2021 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 androidx.window.common;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.content.Context;
import android.text.TextUtils;
import android.util.Log;
import androidx.window.util.BaseDataProducer;
import com.android.internal.R;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* Implementation of {@link androidx.window.util.DataProducer} that produces
* {@link CommonDisplayFeature} parsed from a string stored in the resources config at
* {@link R.string#config_display_features}.
*/
public final class ResourceConfigDisplayFeatureProducer extends
BaseDataProducer<List<DisplayFeature>> {
private static final boolean DEBUG = false;
private static final String TAG = "ResourceConfigDisplayFeatureProducer";
private final Context mContext;
public ResourceConfigDisplayFeatureProducer(@NonNull Context context) {
mContext = context;
}
@Override
@Nullable
public Optional<List<DisplayFeature>> getData() {
String displayFeaturesString = mContext.getResources().getString(
R.string.config_display_features);
if (TextUtils.isEmpty(displayFeaturesString)) {
return Optional.empty();
}
List<DisplayFeature> features = new ArrayList<>();
String[] featureStrings = displayFeaturesString.split(";");
for (String featureString : featureStrings) {
CommonDisplayFeature feature;
try {
feature = CommonDisplayFeature.parseFromString(featureString);
} catch (IllegalArgumentException e) {
if (DEBUG) {
Log.w(TAG, "Failed to parse display feature: " + featureString, e);
}
continue;
}
features.add(feature);
}
return Optional.of(features);
}
}
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