React-Native Updating List View DataSource

Question

I have an iOS app I am making with react-native. The Game class contains a ListView component. I set the state in the constructor and include a dataSource. I ha

Answer 1

react is smart enough to detect changes in dataSource and if the list should be re-rendered. If you want to update listView, create new objects instead of updating the properties of existing objects. The code would look something like this:

let newArray = this._rows.slice();
newArray[rowID] = {
  ...this._rows[rowID],
  Selection: !this._rows[rowID].Selection,
};
this._rows = newArray;

let newDataSource = this.ds.cloneWithRows(newArray);
this.setState({
  dataSource: newDataSource
});

You can read more about similar issue on Github