技術標籤：Flutter

效果圖：

    showGeneralDialog(
        context: context,
        pageBuilder: (context, anim1, anim2) {
          return;
        },
        barrierColor: Colors.grey.withOpacity(.4),
        barrierDismissible: true,
        barrierLabel: "Tips",
        transitionDuration:
 
 Duration(milliseconds: 400),
        transitionBuilder: (context, anim1, anim2, child) {
          return Transform.scale(
              scale: anim1.value,
              child: Opacity(
                opacity: anim1.value,
                child: AlertDialog(
                  shape: RoundedRectangleBorder
 
(
                      borderRadius:
                      BorderRadius.all(Radius.circular(20))),
                  title: Text("Tips"),
                  content:StatefulBuilder(builder: (context, StateSetter setState){
                    return SingleChildScrollView(
                      child:
 
 Column(
                        children:  [
                       
                          RadioListTile(
                            value: 0,
                            groupValue: groupValue,
                            ///點選狀態改變時的回撥 必選引數
                            onChanged: (v) {
                              setState(() {
                                groupValue = v;
                              });
                            },
                            title: Text("Pay \$1 only for"),
                       
                          ),
                          RadioListTile(
                            value: 1,
                            groupValue: groupValue,
                            onChanged: (v) {
                              setState(() {
                                groupValue = v;
                              });
                            },
                            title: Text("Pay \$3 for"),
                       
                          ),
                     
                        ],
                      ),
                    );
                  }),
                  actions: [
                    FlatButton(
                      onPressed: () {
                        FocusScope.of(context).requestFocus(FocusNode());
                        Navigator.pop(context);
                      },
                      child: Text('Cancel'),
                    ),
                    FlatButton(
                      onPressed: () {
                        FocusScope.of(context).requestFocus(FocusNode());
                        Navigator.pop(context);
                      },
                      child: Text('Pay Now'),
                    ),
                  ],
                ),
              ));
        });