Android仿微信右上角点击加号弹出PopupWindow

public class PopWinShare extends PopupWindow {
  private View mainView;
  private TextView layoutShare, layoutCopy;

  public PopWinShare(Activity paramActivity, View.OnClickListener paramOnClickListener, int paramInt1, int paramInt2) {
    super(paramActivity);
    //窗口布局
    mainView = LayoutInflater.from(paramActivity).inflate(R.layout.popwin_share, null);
    //分享布局
    layoutShare = ((TextView) mainView.findViewById(R.id.complain_tv));
    //复制布局
    layoutCopy = (TextView) mainView.findViewById(R.id.expect_tv);
    //设置每个子布局的事件监听器
    if (paramOnClickListener != null) {
      layoutShare.setOnClickListener(paramOnClickListener);
      layoutCopy.setOnClickListener(paramOnClickListener);
    }
    setContentView(mainView);
    //设置宽度
    setWidth(paramInt1);
    //设置高度
    setHeight(paramInt2);
    //设置显示隐藏动画
    setAnimationStyle(R.style.AnimTools);
    //设置背景透明
    setBackgroundDrawable(new ColorDrawable(0));
  }

}

 if (popWinShare == null) {
          //自定义的单击事件
          OnClickLintener paramOnClickListener= new OnClickLintener();
          popWinShare = new PopWinShare(PersonalHomepageActivity.this, paramOnClickListener, 120, 130);
          //监听窗口的焦点事件，点击窗口外面则取消显示
          popWinShare.getContentView().setOnFocusChangeListener(new View.OnFocusChangeListener() {

            @Override
            public void onFocusChange(View v, boolean hasFocus) {
              if (!hasFocus) {
                popWinShare.dismiss();
              }
            }
          });
        }
//设置默认获取焦点
        popWinShare.setFocusable(true);
//以某个控件的x和y的偏移量位置开始显示窗口
        popWinShare.showAsDropDown(tousuTv, 0, 0);
//如果窗口存在，则更新
        popWinShare.update();

class OnClickLintener implements View.OnClickListener {

  @Override
  public void onClick(View v) {
    switch (v.getId()) {
      case R.id.complain_tv:
        Intent intent = new Intent(PersonalHomepageActivity.this, ComplainActivity.class);
        intent.putExtra("about_user_id", friend_id);
        startActivity(intent);
        break;
      case R.id.expect_tv:
        getExpect();
        break;

      default:
        break;
    }

  }

}