Android ListView动态设置高度

 public void getData() {
        List<TravelPeopleEntity> dataList = new ArrayList<>();
        for (int i = 1; i < 5; i++) {
            TravelPeopleEntity entity = new TravelPeopleEntity();
            entity.setId(i);
            entity.setName("李娜娜");
            entity.setCard("610402199206054213");
            entity.setPhoneNumber("15319079845");
            dataList.add(entity);
        }
        adapter = new TravelPeopleAdapter(this);
        adapter.setData(dataList);
        listView.setAdapter(adapter);
        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = getHeight()
                + (listView.getDividerHeight() * (adapter.getCount() - 1));
        ((ViewGroup.MarginLayoutParams) params).setMargins(0, 0, 0, 30);
        listView.setLayoutParams(params);
    }

    public int getHeight() {
        int total = 0;
        for (int i = 0; i < adapter.getCount(); i++) {
            View listItem = adapter.getView(i, null, listView);
            listItem.measure(0, 0);
            total += listItem.getMeasuredHeight();
        }
        return total;
    }