使用Android系统的粘贴板管理服务及ClipboardManager通过addPrimaryClipChangedListener添加Listener来监听粘贴板的状态，很很简单的一个小功能~

1.首先创建一个Service在后台运行：

        Intent intent = new Intent(this,MainService.class);
        startService(intent);

	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();
		ClipboardManager mClipboardManager = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
		Log.e("Copylistenerdemo", mClipboardManager.getPrimaryClip().getItemAt(0).getText().toString());
	}

2.在Service管理粘贴板服务：

	mClipboardManager = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
	mClipboardManager.addPrimaryClipChangedListener(mPrimaryClipChangedListener);

3.在onPrimaryClipChanged()做想要的事情，例如弹出框：

使用WindowManager来显示弹出框

	LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);       
        final View floatView = layoutInflater.inflate(R.layout.floater, null);  
		final WindowManager mWindowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);  
        LayoutParams params = new WindowManager.LayoutParams();  
        params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;//系统内部错误提示，显示于所有内容之上
        params.format = PixelFormat.RGBA_8888; 
        params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL  
                | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;  //当窗口可以获得焦点（没有设置FLAG_NOT_FOCUSALBE选项）时，仍然将窗口范围之外的点设备事件（鼠标、触摸屏）发送给后面的窗口处理
        params.width = WindowManager.LayoutParams.MATCH_PARENT; 
        params.height = WindowManager.LayoutParams.WRAP_CONTENT;  
        params.gravity = Gravity.LEFT | Gravity.TOP;  
        params.x = 0;  
        params.y = 0;
        mWindowManager.addView(floatView, params);
        ObjectAnimator animatorShow = ObjectAnimator.ofFloat(floatView, "alpha", 0.0f,1.0f);
        animatorShow.setDuration(500);
        animatorShow.start();
        ObjectAnimator animatorHide = ObjectAnimator.ofFloat(floatView, "alpha", 1.0f,0.0f);
        animatorHide.setDuration(500);
        animatorHide.setStartDelay(3000);
        animatorHide.start();

        floatView.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				Toast.makeText(MainService.this, "点击淘口令", Toast.LENGTH_SHORT).show();
				Intent intent = new Intent();
				intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
				intent.setClass(MainService.this, xxActivity.class);
				startActivity(intent);
			}
		});