<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">剛做android開發時經常遇到資料傳遞的問題，因為對Java也不是很熟悉，傳遞資料通過Intent或直接放到一個靜態類中。</span>

後來才知道通過java介面回撥來傳輸資料和做各種監聽，後來看到Event Bus資料傳輸的框架受到了啟發，自己弄了一個

簡單的萬能回撥介面，自己感覺還不錯。自己是個新手，歡迎各種菜鳥、小牛、大牛吐槽和指導！

1、先寫個所以介面回撥的都繼承的BaseHandle

public abstract interface BaseHandle {

}

2、在寫個管理所以介面回撥的類

public class HandlerRegister {
	
	private static HashMap<String, ArrayList<BaseHandle>> receiverPond = new HashMap<String, ArrayList<BaseHandle>>();
	

	
	/**
	 * 註冊新的handle
	 * @param handleName
	 */
	public static void addType(String handleName) {
		try {
			ArrayList<BaseHandle> itemList = new ArrayList<BaseHandle>();
			receiverPond.put(handleName, itemList);
		} catch (Exception e) {
			e.printStackTrace(); 
		}
	}
	
	/**
	 * 新增 handle
	 * @param key
	 * @param handle
	 */
	public static void setReceiver(String key,BaseHandle handle) {
		
		try {
			if (receiverPond.containsKey(key)) {
				receiverPond.get(key).add(handle);
			}else {
				addType(key);
				receiverPond.get(key).add(handle);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}
	
	/**
	 * 獲取已經存在的handle
	 * @param key
	 * @return
	 */
	public static ArrayList<BaseHandle> getReceiver(String key) {
		return receiverPond.get(key);
	}
	
	/**
	 * 刪除單個handle
	 * @param key
	 * @param handle
	 */
	public static void deleteHandle(String key,BaseHandle handle) {
		try {
			if (!receiverPond.containsKey(key)) {
				return;
			}
			receiverPond.get(key).remove(handle);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
	}
	
	/**
	 * 刪除key下所有handle
	 * @param key
	 */
	public static void deleteAllHandle(String key) {
		try {
			receiverPond.remove(key);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
 

public interface BuyServiceHandle extends BaseHandle{
	public static final String BUYSERVICE_HANDLE_KEY = "buyservice_handle";
	public void buyResult(String uid);

}

	BuyServiceHandle mBuyServiceHandle = new BuyServiceHandle() {
		
		@Override
		public void buyResult(final String uid) {			
			updateDoctor(uid);	
			
		}


	};
 

HandleRegister.setReceiver(BuyServiceHandle.BUYSERVICE_HANDLE_KEY, mBuyServiceHandle);

	private void informUpdateDoctorList(String uid) {
		ArrayList<BaseHandle> handleList = HandleRegister.getReceiver(BuyServiceHandle.BUYSERVICE_HANDLE_KEY);
		if (handleList == null) {
			return;
		}
		for (BaseHandle temp:handleList) {
			((BuyServiceHandle)temp).buyResult(uid);
		}
	}