package com.algo;
import java.util.LinkedList;
import java.util.List;
public class AlgoCalculator {
    private List<short[]> mDataBuffer = new LinkedList<>();
    public AlgoCalculator() {
    }
    // 定義一個(gè)Listener接口；可將一個(gè)boolean值傳遞出去
    public interface ResultChangeListener {
        void onChange(boolean found);
    }
    private ResultChangeListener resultChangeListener;
    // 調(diào)用方能夠設(shè)置并實(shí)現(xiàn)這個(gè)接口
    public void setResultChangedListener(ResultChangeListener resultChangedListener) {
        this.resultChangeListener = resultChangedListener;
    }
    // 傳輸數(shù)據(jù)
    public void setDataStream(short[] data) {
        checkData(data);// 處理數(shù)據(jù)方法
    }
    // 處理數(shù)據(jù)，并送出結(jié)果
    private void checkData(short[] data) {
        if (data.length == 0) {
            return;
        }
        long sum = 0;
        for (short b : data) {
            sum += b;
        }
        if (sum > 40) {
            resultChangeListener.onChange(true); // 數(shù)據(jù)處理結(jié)果
        } else {
            resultChangeListener.onChange(false);
        }
    }
}

import com.algo.AlgoCalculator;
public class MainUser {
    public static void main(String[] args) {
        AlgoCalculator algoCalculator = new AlgoCalculator(); // 初始化
        // 設(shè)置監(jiān)聽(tīng)器，并在里面增加要執(zhí)行的動(dòng)作
        algoCalculator.setResultChangedListener(new AlgoCalculator.ResultChangeListener() {
            @Override
            public void onChange(boolean found) {
                System.out.println("result: " + found);
            }
        });
        short[] data1 = {1, 2, 3,};
        short[] data2 = {10, 20, 30};
        short[] data3 = {6, 7, 8};
        short[] data4 = {1, 1, 1};
        // 傳入數(shù)據(jù)
        algoCalculator.setDataStream(data1);    // output false
        algoCalculator.setDataStream(data2);    // output true
        algoCalculator.setDataStream(data3);    // output false
        algoCalculator.setDataStream(data4);    // output false
    }
}

private Handler mMainHandler;
mMainHandler = new Handler(Looper.getMainLooper());// 在主線程中運(yùn)行
private void notifySthChange(final int state) {
    mMainHandler.post(new Runnable() {
        @Override
        public void run() {
            ArrayList<SListener> list = new ArrayList<>(mListeners);
            for (SListener l : list) {
                l.OnSthChanged(state);
            }
        }
    });
}