handle unknown chunk type instead of throw

src/main/java/com/reandroid/lib/arsc/chunk/UnknownChunk.java

@@ -0,0 +1,73 @@
+ /*
+  *  Copyright (C) 2022 github.com/REAndroid
+  *
+  *  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.reandroid.lib.arsc.chunk;
+
+ import com.reandroid.lib.arsc.header.HeaderBlock;
+ import com.reandroid.lib.arsc.item.ByteArray;
+
+ import java.io.IOException;
+
+ /**
+ * This class can load any valid chunk, aimed to
+ * handle any future android changes
+ * */
+public class UnknownChunk extends BaseChunk implements HeaderBlock.HeaderLoaded {
+     private final ByteArray headerExtra;
+     private final ByteArray body;
+     public UnknownChunk() {
+         super(INITIAL_CHUNK_TYPE, 1);
+         this.headerExtra = new ByteArray();
+         this.body = new ByteArray();
+
+         addToHeader(this.headerExtra);
+         addChild(body);
+
+         setHeaderLoaded(this);
+     }
+     @Override
+     public void onChunkTypeLoaded(short type) {
+     }
+     @Override
+     public void onHeaderSizeLoaded(int headerSize) {
+         int extraSize = headerSize - 8;
+         this.headerExtra.setSize(extraSize);
+     }
+     @Override
+     public void onChunkSizeLoaded(int headerSize, int chunkSize) {
+         int bodySize = chunkSize - headerSize;
+         this.body.setSize(bodySize);
+     }
+
+     @Override
+     void checkInvalidChunk(HeaderBlock headerBlock) throws IOException {
+     }
+     @Override
+     protected void onChunkRefreshed() {
+     }
+     @Override
+     public String toString(){
+         HeaderBlock headerBlock = getHeaderBlock();
+         return getClass().getSimpleName()
+                 +"{ type="+String.format("0x%04x", headerBlock.getType())
+                 +", chunkSize="+headerBlock.getChunkSize()
+                 +", headerExtra="+headerExtra.size()
+                 +", body="+body.size()+"}";
+     }
+
+     // This value must not exist is ChunkType enum list
+     private static final short INITIAL_CHUNK_TYPE = 0x0207;
+
+ }