1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.one.v2.common; 18 19 import android.hardware.camera2.CaptureResult; 20 import android.hardware.camera2.TotalCaptureResult; 21 22 import com.android.camera.async.Updatable; 23 import com.android.camera.one.v2.core.ResponseListener; 24 25 /** 26 * A {@link ResponseListener} which listens for a particular metadata key. 27 */ 28 public class MetadataResponseListener<V> extends ResponseListener { 29 private final Updatable<V> mUpdatable; 30 private final CaptureResult.Key<V> mKey; 31 32 /** 33 * @param key The key associated with the value for which to listen to 34 * changes. 35 */ 36 public MetadataResponseListener(CaptureResult.Key<V> key, Updatable<V> updatable) { 37 mKey = key; 38 mUpdatable = updatable; 39 } 40 41 @Override 42 public void onProgressed(CaptureResult partialResult) { 43 V newValue = partialResult.get(mKey); 44 if (newValue != null) { 45 mUpdatable.update(newValue); 46 } 47 } 48 49 @Override 50 public void onCompleted(TotalCaptureResult totalCaptureResult) { 51 V newValue = totalCaptureResult.get(mKey); 52 if (newValue != null) { 53 mUpdatable.update(newValue); 54 } 55 } 56 } 57
