Android会议室管理app

柔光的暖阳◎ 2022-08-02 09:39 193阅读 0赞

1 先来张图

![Center][]

2 原理

2.1系统原理

实现了会议室的预定功能，且通过日历时间轴等等控件来控制会议室的使用。

2.2数据库

使用了郭霖的LitePal，具体请移步[http://blog.csdn.net/guolin\_blog][http_blog.csdn.net_guolin_blog]。

2.3TimeLine控件源码

package com.example.shijianzhou;
    
    import java.util.ArrayList;
    import java.util.Calendar;
    import java.util.HashMap;
    
    import android.content.Context;
    import android.os.Handler;
    import android.os.SystemClock;
    import android.text.format.Time;
    import android.util.AttributeSet;
    import android.view.Display;
    import android.view.LayoutInflater;
    import android.view.WindowManager;
    import android.widget.ImageView;
    import android.widget.LinearLayout;
    
    /**
     * 用来实现会议预定的时间轴。
     * 
     * @version 0.1
     * @author zhou
     * 
     */
    public class TimeLine extends LinearLayout {
    
    	private Runnable mTicker;
    	private Handler mHandler;
    	/**
    	 * 控制定时线程是否运行的flag。
    	 */
    	private boolean mTickerStopped;
    	private Calendar mCalendar;
    	private String mFormat = "hh:mm:ss";
    	private ImageView pasttime;
    	private int Width;
    	private int Height;
    	private LinearLayout mainline;
    
    	private ArrayList<HashMap<String, Integer>> huiyitimelist;
    
    	public TimeLine(Context context, AttributeSet attrs) {
    		super(context, attrs);
    		// TODO Auto-generated constructor stub
    		LayoutInflater.from(context).inflate(R.layout.timeline, this, true);
    		pasttime = (ImageView) findViewById(R.id.pasttime);
    		mainline = (LinearLayout) findViewById(R.id.mainline);
    		initTimeLine(context);
    	}
    
    	@Override
    	protected void onAttachedToWindow() {
    		super.onAttachedToWindow();
    		setmTickerstart();
    	}
    
    	@Override
    	protected void onDetachedFromWindow() {
    		super.onDetachedFromWindow();
    		mTickerStopped = true;
    	}
    
    	private void initTimeLine(Context context) {
    		if (mCalendar == null) {
    			mCalendar = Calendar.getInstance();
    		}
    		huiyitimelist = new ArrayList<HashMap<String, Integer>>();
    		// 取得屏幕的宽度和高度
    		WindowManager windowManager = (WindowManager) getContext()
    				.getSystemService(Context.WINDOW_SERVICE);
    		Display display = windowManager.getDefaultDisplay();
    		Width = display.getWidth();
    		Height = display.getHeight();
    	}
    
    	/**
    	 * 
    	 * 移动游标到指定位置。
    	 * 
    	 * @param position
    	 *            位置参数。
    	 */
    	public void movePoint(int position) {
    		android.view.ViewGroup.LayoutParams params = pasttime.getLayoutParams();
    		params.width = position;
    		pasttime.setLayoutParams(params);
    	}
    
    	/**
    	 * 
    	 * 使时间轴上指定的一段变红，即该段时间会议室已经被预定。
    	 * 
    	 * @param start
    	 *            起始时间(秒)
    	 * @param end
    	 *            结束时间(秒)
    	 * 
    	 * @return -1 失败 1 成功。
    	 */
    	public int setSegmentRed(int start, int end) {
    		HashMap<String, Integer> map = new HashMap<String, Integer>();
    		map.put("starttime", start);
    		map.put("endtime", end);
    		start = start * Width / (24 * 60 * 60);
    		end = end * Width / (24 * 60 * 60);
    		map.put("start", start);
    		map.put("end", end);
    		if (end <= start) {
    			return -1;// 代表会议时间错误。
    		}
    		for (int i = 0; i < huiyitimelist.size(); i++) {
    			int startlocal = huiyitimelist.get(i).get("start");
    			int endlocal = huiyitimelist.get(i).get("end");
    			if ((start > startlocal & start < endlocal)
    					| (end > startlocal & end < endlocal)) {
    				return -2;// 代表会议时间冲突。
    			}
    		}
    		huiyitimelist.add(map);
    		mainline.removeAllViews();
    		for (int i = 0; i < huiyitimelist.size(); i++) {
    			int startlocal = huiyitimelist.get(i).get("start");
    			int endlocal = huiyitimelist.get(i).get("end");
    			LinearLayout layout_sub_Lin = new LinearLayout(getContext());
    			LinearLayout.LayoutParams LP_WW = new LinearLayout.LayoutParams(
    					LinearLayout.LayoutParams.MATCH_PARENT,
    					LinearLayout.LayoutParams.MATCH_PARENT);
    			LP_WW.width = (endlocal - startlocal);
    			if (i == 0) {
    				LP_WW.leftMargin = startlocal;
    			} else {
    				LP_WW.leftMargin = startlocal
    						- huiyitimelist.get(i - 1).get("end");
    			}
    			layout_sub_Lin.setLayoutParams(LP_WW);
    			layout_sub_Lin.setBackgroundColor(0x88ffff00);
    			mainline.addView(layout_sub_Lin);
    		}
    		return 1;
    	}
    
    	/**
    	 * 清除所有时间轴上的会议占用时间标记。
    	 */
    	public void clearAllsegment() {
    		mainline.removeAllViews();
    		huiyitimelist.clear();
    	}
    
    	/**
    	 * 控制定时器是否继续工作。
    	 * 
    	 * @param mTickerStopped
    	 *            true则时钟停止。
    	 */
    	public void setmTickerStopped() {
    		mTickerStopped = true;
    		movePoint(0);
    	}
    
    	/**
    	 * 时间轴动起来。
    	 */
    	public void setmTickerstart() {
    		// TODO Auto-generated method stub
    		mTickerStopped = false;
    		mHandler = new Handler();
    		mTicker = new Runnable() {
    			public void run() {
    				if (mTickerStopped) {
    					return;
    				} else {
    					mCalendar.setTimeInMillis(System.currentTimeMillis());
    					Time t = new Time(); // or Time t=new Time("GMT+8"); 加上Time
    											// Zone资料。
    					t.setToNow(); // 取得系统时间。
    					int hour = t.hour; // 0-23
    					int minute = t.minute;
    					int second = t.second;
    					int allseconds = hour * 60 * 60 + minute * 60 + second;
    					int point = allseconds * Width / (24 * 60 * 60);
    					movePoint(point);
    					invalidate();
    					// 遍历是否有会议开始或者结束。
    					// Log.v("znz", "size --> " + huiyitimelist.size());
    					// Log.v("znz",
    					// "starttime --> "
    					// + huiyitimelist.get(0).get("starttime"));
    					// Log.v("znz", "allseconds ---> " + allseconds);
    					// Log.v("znz",
    					// "endtime --> " + huiyitimelist.get(0).get("endtime"));
    					for (int i = 0; i < huiyitimelist.size(); i++) {
    						if (allseconds >= huiyitimelist.get(i).get("starttime")
    								& allseconds <= huiyitimelist.get(i).get(
    										"endtime")) {
    
    							if (timelinecallback != null) {
    								timelinecallback.huiyiStarted(huiyitimelist
    										.get(i).get("starttime"), huiyitimelist
    										.get(i).get("endtime"));
    								break;
    							}
    						}
    						if (i == (huiyitimelist.size() - 1)) {
    							if (timelinecallback != null) {
    								timelinecallback.huiyiStoped();
    							}
    						}
    					}
    					long now = SystemClock.uptimeMillis();
    					long next = now
    							+ (1000 - System.currentTimeMillis() % 1000);
    					mHandler.postAtTime(mTicker, next);
    				}
    			}
    		};
    		mTicker.run();
    	}
    
    	private TimelineCallback timelinecallback;
    
    	/**
    	 * @param timelinecallback
    	 *            the timelinecallback to set
    	 */
    	public void setTimelinecallback(TimelineCallback timelinecallback) {
    		this.timelinecallback = timelinecallback;
    	}
    
    }

2.4项目下载

[http://download.csdn.net/detail/zhounanzhaode/8902951][http_download.csdn.net_detail_zhounanzhaode_8902951]

[Center]: /images/20220731/04463c298adf4399adfdde3395006636.png
[http_blog.csdn.net_guolin_blog]: http://blog.csdn.net/guolin_blog
[http_download.csdn.net_detail_zhounanzhaode_8902951]: http://download.csdn.net/detail/zhounanzhaode/8902951