Android TextView inside ListView直到手动滚动后才能测量正确的高度。

public class MyAdapter extends BaseAdapter {
    private List<String> data;
    private int[] textHeights;

    public MyAdapter(List<String> data) {
        this.data = data;
        textHeights = new int[data.size()];
    }

    @Override
    public int getCount() {
        return data.size();
    }

    @Override
    public Object getItem(int position) {
        return data.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
            holder = new ViewHolder();
            holder.textView = convertView.findViewById(R.id.text_view);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.textView.setText(data.get(position));
        holder.textView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                textHeights[position] = holder.textView.getHeight();
                holder.textView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            }
        });

        return convertView;
    }

    public int getTextHeight(int position) {
        return textHeights[position];
    }

    private static class ViewHolder {
        TextView textView;
    }
}

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private MyAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.list_view);
        List<String> data = new ArrayList<>();
        // 添加数据到data中
        adapter = new MyAdapter(data);
        listView.setAdapter(adapter);
        listView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                if (scrollState == SCROLL_STATE_IDLE) {
                    // 滚动结束后重新测量TextView的高度
                    int firstVisiblePosition = listView.getFirstVisiblePosition();
                    int lastVisiblePosition = listView.getLastVisiblePosition();
                    for (int i = firstVisiblePosition; i <= lastVisiblePosition; i++) {
                        View view = listView.getChildAt(i - firstVisiblePosition);
                        if (view != null) {
                            int position = i;
                            int height = adapter.getTextHeight(position);
                            TextView textView = view.findViewById(R.id.text_view);
                            textView.setHeight(height);
                        }
                    }
                }
            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            }
        });
    }
}