Hibok/lib/utils/anim_effect_overlay.dart

import 'package:chat/generated/i18n.dart';
import 'package:chat/r.dart';
import 'package:chat/utils/image_frame_animation.dart';
import 'package:chat/utils/screen.dart';
import 'package:flutter/material.dart';

class AnimEffect {
  static showEffect(BuildContext context, int giftId) {
    var overlayState = Overlay.of(context);
    OverlayEntry overlayEntry = OverlayEntry(builder: (context) {
      return LayoutBuilder(builder: (context, constraints) {
        var item;
        if (giftId == 2) {
          var imgList = [
            R.assetsImagesGiftShow21,
            R.assetsImagesGiftShow22,
            R.assetsImagesGiftShow23,
            R.assetsImagesGiftShow24
          ].map<Widget>((imgName) => Image.asset(imgName)).toList();

          item = ImgFrameAnimation(imgList: imgList);
        } else {
          var imgPath = 'assets/images/gift_anim_$giftId.gif';
          item = Image.asset(imgPath);
        }

        return IgnorePointer(
          ignoring: true,
          child: Container(
            child: Material(
                color: Colors.black.withOpacity(0.7),
                child: Center(child: item)),
            alignment: Alignment.center,
          ),
        );
      });
    });
    overlayState.insert(overlayEntry);

    //两秒后，移除Toast
    Future.delayed(Duration(seconds: 3)).then((value) {
      overlayEntry.remove();
    });
  }

  static showDashangEffect(
      BuildContext context, bool isMe, int amount, String itemName) {
    var overlayState = Overlay.of(context);
    OverlayEntry overlayEntry = OverlayEntry(builder: (context) {
      return Positioned(
        // left: isMe ? 10 : null,
        // right: !isMe ? 10 : null,
        bottom: 150,
        child: Container(
          width: Screen.width,
          alignment: Alignment
              .center, //isMe ? Alignment.centerLeft : Alignment.centerRight,
          child: Material(
              color: Colors.black.withOpacity(0),
              child: isMe
                  ? fixedText(
                      I18n.of(context)
                          .send_gift
                          .replaceFirst('/s1', amount.toString())
                          .replaceFirst('/s2', itemName),
                      color: Colors.white)
                  : fixedText(
                      I18n.of(context)
                          .receive_gift
                          .replaceFirst('/s1', amount.toString())
                          .replaceFirst('/s2', itemName),
                      color: Colors.white)),
        ),
      );
    });
    overlayState.insert(overlayEntry);

    //两秒后，移除Toast
    Future.delayed(Duration(seconds: 3)).then((value) {
      overlayEntry.remove();
    });
  }
}