//图片工具
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import 'dart:io';
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import 'package:dio/dio.dart';
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import 'package:flutter/material.dart';
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import 'package:image_cropper/image_cropper.dart';
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import 'package:image_gallery_saver/image_gallery_saver.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:permission_handler/permission_handler.dart';
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import '../../utils/ui_constant.dart';
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import 'config_util.dart';
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import 'encrypt_util.dart';
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import 'permission_util.dart';
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import 'share_utils.dart';
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import 'ui_utils.dart';
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class ImageUtil {
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//选择并裁剪图片
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static Future<File?> selectAndCropImage() async {
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final ImagePicker _picker = ImagePicker();
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final XFile? image = await _picker.pickImage(source: ImageSource.gallery);
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ImageCropper cropper = ImageCropper();
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File? croppedFile = await cropper.cropImage(
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cropStyle: CropStyle.circle,
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sourcePath: image!.path,
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aspectRatioPresets: [CropAspectRatioPreset.square],
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androidUiSettings: const AndroidUiSettings(
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toolbarTitle: 'Cropper',
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toolbarColor: ColorConstant.theme,
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toolbarWidgetColor: Colors.white,
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initAspectRatio: CropAspectRatioPreset.square,
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lockAspectRatio: true),
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iosUiSettings: const IOSUiSettings(
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minimumAspectRatio: 1.0,
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));
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return croppedFile;
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}
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//保存图片
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static saveImg(String url, BuildContext context) {
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Future<Directory?> dir;
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if (Platform.isAndroid) {
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dir = getExternalStorageDirectory();
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} else {
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dir = getApplicationDocumentsDirectory();
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}
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dir.then((value) {
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if (value == null) {
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ToastUtil.toast("获取缓存目录失败", context);
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return;
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}
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String doc = value.path;
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String path = doc + "/" + EncryptUtil.MD5(url) + ".png";
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_dowloadImg(url, path, context).then((value) {
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if (value) {
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ToastUtil.toast("保存成功", context);
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}
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});
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});
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}
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///分享图片
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///type: 1-微信 2-qq 3-新浪
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static shareImg(String url, int type, BuildContext context) {
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getTemporaryDirectory().then((value) {
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String path = value.path + "/" + EncryptUtil.MD5(url) + ".png";
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_dowloadImg(url, path, context).then((value) {
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if (value) {
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//开始分享
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switch (type) {
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case 0:
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ShareUtil.shareImg(context, File(path), SharePlatform.all);
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break;
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case 1:
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ShareUtil.shareImg(context, File(path), SharePlatform.wx);
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break;
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case 2:
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ShareUtil.shareImg(context, File(path), SharePlatform.qq);
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break;
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case 3:
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ShareUtil.shareImg(context, File(path), SharePlatform.sina);
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break;
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}
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}
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});
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});
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}
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static Future<bool> _dowloadImg(
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String url, String path, BuildContext context) async {
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PermissionStatus status =
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await PermissionUtil.openPermission(Permission.storage, force: true);
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if (status != PermissionStatus.granted) {
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return false;
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}
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//下载图片
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Dio dio = Dio();
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//设置连接超时时间
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dio.options.connectTimeout = 20000;
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//设置数据接收超时时间
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dio.options.receiveTimeout = 20000;
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Response response;
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try {
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response = await dio.download(url, path);
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if (response.statusCode == 200) {
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await ImageGallerySaver.saveFile(path);
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return true;
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} else {
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return false;
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}
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} catch (e) {
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ToastUtil.toast("网络连接失败", context);
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return false;
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}
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}
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}
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