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    朋友 : 这I;P的成就咋搞的?

    我 : 不是我干的, 都是Google Play Service搞定的, 要看API文档不~

    朋友 : 知道你没个服务器搞这个, 我就想问问你怎么跟踪成就事件的? 就是你怎么判断成就完成了呢?

    我 : 啊, 这个啊...简单的怕你骂我...

 

    开说 ---- 我觉得呢, 每个问题都有N多的解决方案, 但基于人性考虑呢, 简单,好敲, 省力气的, 才是好方案...

 

    成就事件跟踪呢, 简单考虑就是实时/定时事件点上更新成就所需数据, 并在指定的事件点上(也可以实时)进行检查判断, 以决定是否解锁.

    因此, 我用了如下的类型存放成就所需数据:

 

private Type(int id, int target, boolean inc, boolean global) {			this.id = id;			this.target = target;			this.inc = inc;			this.global = global;		}

        id: 成就标识;

        target: 成就目标阈值;

        inc: 递增类型(用于区别大于/小于);

        global: 全局成就类型(就是全关卡通用, 反之每次running后清零);

 

    有了上面的结构, 实例化各个成就数据, 然后在running过程中的每个事件中, 比如, Tary移动, 指令调用, 执行成功等等地方, 累计相应的成就值就好; 当执行成功时(这个是I;P成就的前提条件), 检查每一个成就实例, 哪个满足条件了, 就解锁哪个. 很简单不是? 下面是代码:

 

package jie.android.ip.playservice;import java.util.HashMap;import jie.android.ip.PlayEventListener;import jie.android.ip.utils.Utils;public class PlayServiceTracker {		private static final String Tag = PlayServiceTracker.class.getSimpleName();		private static final int ID_MOVE_LEFT = 10;	private static final int ID_MOVE_RIGHT = 11;	private static final int ID_ACTION_EMPTY = 12;	private static final int ID_ACTION_MAX = 13;	private static final int ID_CALL_MAX = 14;	private static final int ID_CHECK_MAX = 15;	private static final int ID_STEP_MAX = 20;	private static final int ID_EXECUTE_MAX_EXCEPTIN = 30;	private static final int ID_EXECUTE_MAX_OVERFLOW = 31;	private static final int ID_EXECUTE_MAX_FINISHED = 32;	private static final int ID_EXECUTE_MAX_RESET = 33;	private static final int ID_EXECUTE_MIN_SUCC = 34;	private static final int ID_EVENT_NO_UNSOLVED = 40;		public enum Type {		MOVE_LEFT(ID_MOVE_LEFT, 50, true, false), MOVE_RIGHT(ID_MOVE_RIGHT, 50, true, false), ACTION_EMPTY(ID_ACTION_EMPTY, 30, true, false), 		ACTION_MAX(ID_ACTION_MAX, 180, true, false), CALL_MAX(ID_CALL_MAX, 30, true, false), CHECK_MAX(ID_CHECK_MAX, 50, true, false),		STEP_MAX(ID_STEP_MAX, 200, true, false),		EXECUTE_MAX_EXCEPTION(ID_EXECUTE_MAX_EXCEPTIN, 10, true, true), EXECUTE_MAX_OVERFLOW(ID_EXECUTE_MAX_OVERFLOW, 10, true, true), EXECUTE_MAX_FINISHED(ID_EXECUTE_MAX_FINISHED, 10, true, true),		EXECUTE_MAX_RESET(ID_EXECUTE_MAX_RESET, 10, true, true), EXECUTE_MIN_SUCC(ID_EXECUTE_MIN_SUCC, 1, false, true),		EVENT_NO_UNSOLVED(ID_EVENT_NO_UNSOLVED, 1, true, true);				private final int id;		private final int target;		private final boolean inc;		private final boolean global;				private Type(int id, int target, boolean inc, boolean global) {			this.id = id;			this.target = target;			this.inc = inc;			this.global = global;		}				public int getId() {			return id;		}		public int getTarget() {			return target;		}				public boolean isInc() {			return inc;		}				public boolean isGlobal() {			return global;		}	}		public class Data {		public int value;		public int target;				public boolean check() {			return value >= target;		}	}		private HashMap
     
       mapData = new HashMap
      
       ();		public PlayServiceTracker() {		init();	}		private void init() {		for (final Type type : Type.values()) {			mapData.put(type.getId(), new Integer(0));		}	}		public void update(final Type type) {		mapData.put(type.getId(), mapData.get(type.getId()) + 1);	}		public void refresh(boolean all) {		for (final Type type : Type.values()) {			if (all || !type.isGlobal()) {				mapData.put(type.getId(), new Integer(0));			}		}	}		public boolean check(final Type type) {		final Integer val = mapData.get(type.getId());		if (type.isInc()) {			return (val >= type.getTarget());		} else {			return (val <= type.getTarget());		}	}	public void check(final PlayEventListener playEventListener) {		for (final Type type : Type.values()) {			if (check(type)) {				Utils.log(Tag, "PlayEvent is triggered - id = " + type.id);				playEventListener.unlockTrackerAchievement(type.getId());			}		}	}	   }
      
     

 

    对了, 最后还好, 朋友只是鄙视了下, 没打没骂...