showEditDialog function

Future<String?> showEditDialog(BuildContext context, String title, { String content = "", })

Implementation

Future<String?> showEditDialog(
  BuildContext context,
  String title, {
  String content = "",
}) async {
  var controller = TextEditingController(text: content);
  bool? res = await showDialog(
    context: context,
    builder: (BuildContext context) {
      return Center(
        child: Container(
          margin: EdgeInsets.symmetric(
            horizontal: MediaQuery.of(context).size.width / 5,
          ),
          padding: EdgeInsets.all(15),
          decoration: BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.circular(5),
          ),
          child: SingleChildScrollView(
            child: Column(
              children: [
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    title,
                    style: TextStyle(fontWeight: FontWeight.bold),
                  ),
                ),
                SizedBox(height: 5),
                TextField(
                  controller: controller,
                  keyboardType: TextInputType.number,
                  inputFormatters: [
                    FilteringTextInputFormatter.allow(RegExp("[0-9]")),
                  ],
                  decoration: InputDecoration(
                    isCollapsed: true,
                    hintText: title,
                    isDense: true,
                    border: InputBorder.none,
                  ),
                ),

                SizedBox(height: 10),

                Row(
                  children: [
                    Expanded(
                      child: GestureDetector(
                        onTap: () {
                          Navigator.pop(context);
                        },
                        child: Container(
                          padding: EdgeInsets.symmetric(vertical: 10),
                          decoration: BoxDecoration(
                            color: Colors.grey,
                            borderRadius: br5,
                          ),
                          child: Center(
                            child: Text(
                              "取消",
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ),

                    SizedBox(width: 5),
                    Expanded(
                      child: GestureDetector(
                        onTap: () {
                          Navigator.pop(context, true);
                        },
                        child: Container(
                          padding: EdgeInsets.symmetric(vertical: 10),
                          decoration: BoxDecoration(
                            color: Colors.blue,
                            borderRadius: br5,
                          ),
                          child: Center(
                            child: Text(
                              "确定",
                              style: TextStyle(color: Colors.white),
                            ),
                          ),
                        ),
                      ),
                    ),
                  ],
                ),
              ],
            ),
          ),
        ),
      );
    },
  );
  if (res == true) {
    return controller.text;
  } else {
    return null;
  }
}