Flutter共享平台接口插件hi_share_platform_interface的使用

在Flutter开发中，hi_share_platform_interface 是一个用于实现跨平台共享功能的插件接口。通过它，开发者可以轻松地在不同的平台上（如Android和iOS）实现统一的共享逻辑。

使用步骤

1. 添加依赖

首先，在项目的 pubspec.yaml 文件中添加 hi_share_platform_interface 作为依赖项：

dependencies:
  hi_share_platform_interface: ^1.0.0

然后运行以下命令以安装依赖：

flutter pub get

2. 创建平台实现

为了使插件能够在不同平台上工作，我们需要为每个平台创建具体的实现。例如，在Android和iOS上分别实现共享逻辑。

Android 实现

创建一个名为 HiSharePlugin 的类来处理Android上的共享逻辑：

// android/src/main/java/com/example/hi_share_plugin/HiSharePlugin.java
package com.example.hi_share_plugin;

import android.content.Intent;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.PluginRegistry.Registrar;

public class HiSharePlugin implements MethodCallHandler {
    private final Registrar registrar;

    public static void registerWith(Registrar registrar) {
        final MethodChannel channel = new MethodChannel(registrar.messenger(), "hi_share_plugin");
        channel.setMethodCallHandler(new HiSharePlugin(registrar));
    }

    private HiSharePlugin(Registrar registrar) {
        this.registrar = registrar;
    }

    @Override
    public void onMethodCall(MethodCall call, Result result) {
        if (call.method.equals("shareText")) {
            String text = call.argument("text");
            shareText(text);
            result.success(null);
        } else {
            result.notImplemented();
        }
    }

    private void shareText(String text) {
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_TEXT, text);
        registrar.activity().startActivity(Intent.createChooser(intent, "Share via"));
    }
}

iOS 实现

创建一个名为 HiSharePlugin 的类来处理iOS上的共享逻辑：

// ios/Classes/HiSharePlugin.m
#import <Flutter/Flutter.h>

@interface HiSharePlugin : NSObject <FlutterPlugin>
@end

@implementation HiSharePlugin

+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar {
    HiSharePlugin *instance = [[HiSharePlugin alloc] init];
    [registrar addMethodCallDelegate:instance channel:[FlutterMethodChannel methodChannelWithName:@"hi_share_plugin" binaryMessenger:registrar.messenger]];
}

- (void)handleMethodCall:(FlutterMethodCall *)call result:(FlutterResult)result {
    if ([call.method isEqualToString:@"shareText"]) {
        NSString *text = call.arguments;
        [self shareText:text];
        result(nil);
    } else {
        result(FlutterMethodNotImplemented);
    }
}

- (void)shareText:(NSString *)text {
    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:@[text] applicationActivities:nil];
    [self.bridge.viewController presentViewController:activityVC animated:YES completion:nil];
}

@end

3. 使用插件

在Flutter代码中调用共享功能：

import 'package:flutter/material.dart';
import 'package:hi_share_platform_interface/hi_share_platform_interface.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Hi Share Plugin Example')),
        body: Center(
          child: ElevatedButton(
            onPressed: () {
              HiSharePlatformInterface.shareText('Hello, World!');
            },
            child: Text('Share Text'),
          ),
        ),
      ),
    );
  }
}