jingyun
75 lines
1.9 KiB
Dart
75 lines
1.9 KiB
Dart
// ignore_for_file: use_build_context_synchronously
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import 'dart:typed_data';
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import 'dart:ui' as ui;
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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import 'package:share_plus/share_plus.dart';
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ui.Rect? shareOriginForContext(BuildContext context) {
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final renderObject = context.findRenderObject();
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if (renderObject is! RenderBox || !renderObject.hasSize) {
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return null;
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}
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return renderObject.localToGlobal(Offset.zero) & renderObject.size;
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}
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Future<Uint8List> captureWidgetPng(
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GlobalKey key, {
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double pixelRatio = 3.0,
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}) async {
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await WidgetsBinding.instance.endOfFrame;
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final context = key.currentContext;
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if (context == null) {
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throw StateError('share target is not mounted');
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}
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final renderObject = context.findRenderObject();
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if (renderObject is! RenderRepaintBoundary) {
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throw StateError('share target is not a repaint boundary');
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}
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final image = await renderObject.toImage(pixelRatio: pixelRatio);
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final byteData = await image.toByteData(format: ui.ImageByteFormat.png);
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if (byteData == null) {
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throw StateError('failed to convert share image');
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}
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return byteData.buffer.asUint8List();
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}
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Future<void> sharePngFromBoundary(
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GlobalKey key, {
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required String fileName,
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String? text,
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String? subject,
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ui.Rect? sharePositionOrigin,
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double pixelRatio = 3.0,
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}) async {
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final bytes = await captureWidgetPng(key, pixelRatio: pixelRatio);
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final xFile = XFile.fromData(bytes, mimeType: 'image/png', name: fileName);
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await SharePlus.instance.share(
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ShareParams(
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files: [xFile],
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text: text,
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subject: subject,
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sharePositionOrigin: sharePositionOrigin,
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),
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);
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}
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Future<void> sharePlainText({
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required String text,
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String? subject,
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ui.Rect? sharePositionOrigin,
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}) async {
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await SharePlus.instance.share(
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ShareParams(
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text: text,
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subject: subject,
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sharePositionOrigin: sharePositionOrigin,
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),
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);
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}
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