FlutterでMap<String, dynamic>をリストに追加する方法

リストの作成とMapの追加

List<Map<String, dynamic>> myList = [];
Map<String, dynamic> myMap = {
"key1": "value1",
"key2": 2,
"key3": true,
};
myList.add(myMap);

リストの初期化と同時にMapを追加

List<Map<String, dynamic>> myList = [
{
"key1": "value1",
"key2": 2,
"key3": true,
},
];

リストの指定位置にMapを挿入

List<Map<String, dynamic>> myList = [
{
"key1": "value1",
"key2": 2,
"key3": true,
},
{
"key4": "value4",
"key5": 5,
"key6": false,
},
];
Map<String, dynamic> newMap = {
"key7": "value7",
"key8": 8,
"key9": true,
};
myList.insert(1, newMap);

リスト内のMapの値を更新

List<Map<String, dynamic>> myList = [
{
"key1": "value1",
"key2": 2,
"key3": true,
},
];
myList[0]["key2"] = 3;