android 一个Activity跳转到另一个Activity，并数值传递的方法

        有两个Activity,  ButtonView.java   PhotoView.java , ButtonView要带参数跳转到PhotoView。

    ButtonView.java ：

getStartActivity(ButtonView.this, PhotoView.class, params);

public void getStartActivity(Context cnt, Class<?> cls,HashMap<String, Object> params) {
		Intent mint = new Intent(cnt, cls);
		ArrayList list = new ArrayList();
		if (params!=null){
			params.remove("_result");
			list.add(params);
		}
		Bundle bd = new Bundle();
		bd.putParcelableArrayList("key", list);
		// mint.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
		mint.putExtras(bd);
		
		startActivity(mint);
	}

 PhotoView.java:

接受参数

/* 获取传递数值  */
HashMap<String, Object> params = getParams(getIntent());
public HashMap<String, Object> getParams(Intent mint) {
		/*
		 * Bundle bundle = this.getIntent().getExtras(); ArrayList<String>
		 * arrClass1 = (ArrayList<String>) bundle.getSerializable("class");
		 */
		Bundle bd = mint.getExtras();
		if (bd==null) return null;
		ArrayList list = bd.getParcelableArrayList("key");
		HashMap<String, Object> params = (HashMap<String, Object>) list.get(0);
		return params;
	}