flutter_image_marker 0.0.5

A image water maker Flutter plugin for android && ios.

example/lib/main.dart

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:flutter_image_marker/flutter_image_marker.dart';
import 'package:wechat_assets_picker/wechat_assets_picker.dart';

void main() {
  runApp(const MyAppPrepare());
}

class MyAppPrepare extends StatelessWidget {
  const MyAppPrepare({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: GestureDetector(
        /// 全局键盘关闭
        onTap: () {
          FocusScopeNode focusScopeNode = FocusScope.of(context);
          if (!focusScopeNode.hasPrimaryFocus && focusScopeNode.focusedChild != null) {
            FocusManager.instance.primaryFocus?.unfocus();
          }
        },
        child: const MyApp(),
      ),
      localizationsDelegates: const <LocalizationsDelegate<dynamic>>[
        GlobalWidgetsLocalizations.delegate,
        GlobalMaterialLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      locale: const Locale('zh'),
      supportedLocales: const <Locale>[
        Locale('zh'), // Chinese
        // Locale('iw'), // Hebrew
      ],
    );
  }
}

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String imagePath = "";
  String markerPath = "";

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = await FlutterImageMarker.platformVersion ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
          appBar: AppBar(
            title: const Text('Plugin example app'),
          ),
          body: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  TextButton(
                      onPressed: () async {
                        final List<AssetEntity>? result = await AssetPicker.pickAssets(context,
                            pickerConfig: const AssetPickerConfig(
                              maxAssets: 1,
                              requestType: RequestType.image,
                            ));
                        if (result == null || result.isEmpty) {
                          return;
                        }
                        File? file = await result.first.originFile;
                        if (file != null) {
                          setState(() {
                            imagePath = file.path;
                          });
                        }
                      },
                      child: const Text(
                        "图片选择",
                        style: TextStyle(color: Colors.black, fontSize: 16),
                      )),
                  const SizedBox(
                    width: 16,
                  ),
                  TextButton(
                      onPressed: () async {
                        try {
                          TengitsMakerModel mode = TengitsMakerModel();
                          mode.imagePath = imagePath;
                          mode.textColor = Colors.red;
                          mode.textBgColor = Colors.blue;
                          mode.text = "mark test";
                          mode.fontSize = 40;
                          mode.position = MarkerPosition.bottomLeft;
                          String? ret = await FlutterImageMarker.markText(mode);
                          if (ret == null) {
                            ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
                              content: Text('sdk调用返回为空'),
                            ));
                          } else {
                            setState(() {
                              markerPath = ret;
                            });
                          }
                        } catch (exception) {
                          ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
                            content: Text('sdk调用异常了'),
                          ));
                        }
                      },
                      child: const Text(
                        "打水印",
                        style: TextStyle(color: Colors.black, fontSize: 16),
                      )),
                ],
              ),
              const SizedBox(
                height: 16,
              ),
              Row(
                children: [
                  Container(
                    width: 200,
                    height: 200,
                    decoration: BoxDecoration(
                      color: const Color(0xffEBEDF0),
                      border: Border.all(color: const Color(0xffE14C4C)),
                      borderRadius: BorderRadius.circular(4),
                    ),
                    child: Offstage(
                      offstage: imagePath.isEmpty,
                      child: Image.file(
                        File(imagePath),
                        fit: BoxFit.fill,
                      ),
                    ),
                  ),
                  Expanded(
                      child: Text(
                    "水印图片地址：" + markerPath,
                    style: const TextStyle(color: Colors.blue, fontSize: 16),
                  )),
                ],
              ),
              if (markerPath.isNotEmpty)
                Container(
                  width: 400,
                  height: 350,
                  decoration: BoxDecoration(
                    color: const Color(0xffEBEDF0),
                    border: Border.all(color: const Color(0xffE14C4C)),
                    borderRadius: BorderRadius.circular(4),
                  ),
                  child: Image.file(
                    File(markerPath),
                    fit: BoxFit.fill,
                  ),
                ),
            ],
          )),
    );
  }
}