import com.android.dex.Code.Try; //导入依赖的package包/类
private Code readCode() {
    int registersSize = readUnsignedShort();
    int insSize = readUnsignedShort();
    int outsSize = readUnsignedShort();
    int triesSize = readUnsignedShort();
    int debugInfoOffset = readInt();
    int instructionsSize = readInt();
    short[] instructions = readShortArray(instructionsSize);
    Try[] tries;
    CatchHandler[] catchHandlers;
    if (triesSize > 0) {
        if (instructions.length % 2 == 1) {
            readShort(); // padding
        }

        /*
         * We can't read the tries until we've read the catch handlers.
         * Unfortunately they're in the opposite order in the dex file
         * so we need to read them out-of-order.
         */
        Section triesSection = open(data.position());
        skip(triesSize * SizeOf.TRY_ITEM);
        catchHandlers = readCatchHandlers();
        tries = triesSection.readTries(triesSize, catchHandlers);
    } else {
        tries = new Try[0];
        catchHandlers = new CatchHandler[0];
    }
    return new Code(registersSize, insSize, outsSize, debugInfoOffset, instructions,
                    tries, catchHandlers);
}
 

import com.android.dex.Code.Try; //导入依赖的package包/类
private Try[] readTries(int triesSize, CatchHandler[] catchHandlers) {
    Try[] result = new Try[triesSize];
    for (int i = 0; i < triesSize; i++) {
        int startAddress = readInt();
        int instructionCount = readUnsignedShort();
        int handlerOffset = readUnsignedShort();
        int catchHandlerIndex = findCatchHandlerIndex(catchHandlers, handlerOffset);
        result[i] = new Try(startAddress, instructionCount, catchHandlerIndex);
    }
    return result;
}