Flutter 腾讯云COS上传文件 使用andriod flutter混合开发 使用flutter1.12 1.17及以上版本
flutter 腾讯云COS上传 使用andriod flutter混合开发 试用flutter1.12 1.17及以上版本
- flutter 腾讯云COS上传 使用andriod flutter混合开发 使用flutter1.12 1.17及以上版本
- 前言
- 解决方法 andriod与flutter混合开发
- 推荐大家用as打开flutter目录下的app目录编写 flutter环境下java会红线报错
- 打开后的目录如图 一开始打开要下载各种依赖 很慢 多等一会
- Andriod代码部分
- CosFlutterPlugin.java
- GeneratedPluginRegistrant.java
- MainActivity.java
- flutter调用的代码
- 参考的官方文档
flutter 腾讯云COS上传 使用andriod flutter混合开发 使用flutter1.12 1.17及以上版本
前言
腾讯云对Flutter极不友好 在其官方文档里没有给出flutter的官方插件 flutter插件网https://pub.dev/里唯一的插件经我反复尝试已经不能使用。现研究混合开发，又发现新的flutter版本（>1.12）已经不兼容旧的了，所以需要新的api接口。
解决方法 andriod与flutter混合开发
在网上搜索了很多混合开发的，基本处于在andriod基础上进行flutter的增加。这不是我们的目的，我们的目的是在flutter的基础上编写andriod代码。
大家最好先在博客里看一看混合开发，学一学基础，再进行相应的混合开发的代码编写。
推荐大家用as打开flutter目录下的app目录编写 flutter环境下java会红线报错
如图所示的app
打开后的目录如图 一开始打开要下载各种依赖 很慢 多等一会
MyFlutterPlugin那个不用在意 是test用 其他的代码贴在下方
Andriod代码部分
CosFlutterPlugin.java
package io.flutter.plugins;
import android.app.Activity;
import com.tencent.cos.xml.CosXmlService;
import com.tencent.cos.xml.CosXmlServiceConfig;
import com.tencent.cos.xml.exception.CosXmlClientException;
import com.tencent.cos.xml.exception.CosXmlServiceException;
import com.tencent.cos.xml.listener.CosXmlProgressListener;
import com.tencent.cos.xml.listener.CosXmlResultListener;
import com.tencent.cos.xml.model.CosXmlRequest;
import com.tencent.cos.xml.model.CosXmlResult;
import com.tencent.cos.xml.transfer.COSXMLUploadTask;
import com.tencent.cos.xml.transfer.TransferConfig;
import com.tencent.cos.xml.transfer.TransferManager;
import com.tencent.qcloud.core.auth.QCloudCredentialProvider;
import com.tencent.qcloud.core.auth.ShortTimeCredentialProvider;
import java.util.HashMap;
import io.flutter.Log;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.PluginRegistry;
import android.content.Context;
import android.app.Application;
import androidx.annotation.NonNull;
import java.lang.ref.WeakReference;
import java.util.UUID;
import io.flutter.embedding.engine.plugins.FlutterPlugin;
import io.flutter.embedding.engine.plugins.activity.ActivityAware;
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
import static com.amap.api.maps.model.BitmapDescriptorFactory.getContext;
public final class CosFlutterPlugin implements FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware {
private static Context mContext;
private static MethodChannel channel;
private static final String PLUGIN_NAME = "tencent_cos";
private Application mApplication;
private Activity mActivity;
@Override
public void onMethodCall(MethodCall call, MethodChannel.Result result) {
if (call.method.equals("TencentCos.uploadFile")) {
Log.e("TencentCosPlugin", "TencentCos.uploadFile");
String secretId = "xxxxxxxxxxxxxxxxx"; //永久密钥 secretId 改为自己的
String secretKey = "xxxxxxxxxxxxxxxxx"; //永久密钥 secretKey
// keyDuration 为请求中的密钥有效期，单位为秒
QCloudCredentialProvider myCredentialProvider =
new ShortTimeCredentialProvider(secretId, secretKey, 300);
String region = "xxxxxxxxxxxxxxxxx";//改为自己的
String bucket = "xxxxxxxxxxxxxxxxx";//改为自己的
final String localPath = call.argument("localPath");
final String way = call.argument("way");
android.util.Log.d(localPath, "onMethodCall: ");
// 先查找
int index = localPath.lastIndexOf(".");
// 截取
String lastname = localPath.substring(index, localPath.length());
//生成uuid
UUID own=UUID.randomUUID();
String cosPath = "app/"+way+"/20."+own.toString().replace("-", "")+lastname;
/// 初始化 COS Service
// 创建 CosXmlServiceConfig 对象，根据需要修改默认的配置参数
// CosXmlServiceConfig.Builder builder = new CosXmlServiceConfig.Builder().setRegion(region).setDebuggable(false).isHttps(true);
CosXmlServiceConfig serviceConfig = new CosXmlServiceConfig.Builder()
.setRegion(region)
.isHttps(true) // 使用 HTTPS 请求, 默认为 HTTP 请求
.builder();
// 初始化 COS Service，获取实例
// context = InstrumentationRegistry.getInstrumentation().getTargetContext();
CosXmlService cosXmlService = new CosXmlService(mContext, serviceConfig, myCredentialProvider);
///访问 COS 服务
// 初始化 TransferConfig，这里使用默认配置，如果需要定制，请参考 SDK 接口文档
TransferConfig transferConfig = new TransferConfig.Builder().build();
//初始化 TransferManager
TransferManager transferManager = new TransferManager(cosXmlService, transferConfig);
//上传文件
COSXMLUploadTask cosxmlUploadTask = transferManager.upload(bucket, cosPath, localPath, null);
final HashMap<String, Object> data = new HashMap<>();
data.put("localPath", localPath);
data.put("cosPath", cosPath);
// result.success("https://kt-1301681474.cos.ap-shanghai.myqcloud.com/"+cosPath);
cosxmlUploadTask.setCosXmlProgressListener(new CosXmlProgressListener() {
@Override
public void onProgress(final long complete, final long target) {
mActivity.runOnUiThread(new Runnable() {
@Override
public void run() {
// result.success( complete + "====run====" + target);
channel.invokeMethod("onProgress", complete + "====run====" + target);
}
});
// Log.e("onProgress", cosPath);
// Log.d("TencentCosPlugin", "onProgress =${progress * 100.0 / max}%");
}
});
//设置返回结果回调
cosxmlUploadTask.setCosXmlResultListener(new CosXmlResultListener() {
@Override
public void onSuccess(CosXmlRequest request, CosXmlResult httPesult) {
// COSXMLUploadTask.COSXMLUploadTaskResult cOSXMLUploadTaskResult =
// (COSXMLUploadTask.COSXMLUploadTaskResult) result;
Log.d("onSuccess", cosPath);
Log.d("TencentCosPlugin", "Success: " + httPesult.printResult());
mActivity.runOnUiThread(new Runnable() {
@Override
public void run() {
result.success("https://kt-1301681474.cos.ap-shanghai.myqcloud.com/"+cosPath);
}
});
// result.success("0");
}
@Override
public void onFail(CosXmlRequest request, CosXmlClientException exception, CosXmlServiceException serviceException) {
Log.d("TencentCosPlugin", "Failed: " + (exception.toString() + serviceException.toString()));
data.put("message", (exception.toString() + serviceException.toString()));
mActivity.runOnUiThread(new Runnable() {
@Override
public void run() {
result.success("fail upload");
}
});
if (exception != null) {
exception.printStackTrace();
} else {
serviceException.printStackTrace();
}
}
});
} else {
result.notImplemented();
}
}
// public CosFlutterPlugin(PluginRegistry.Registrar registrar, MethodChannel channel) {
// this.registrar = registrar;
// this.channel = channel;
// }
//
// /**
// * Plugin registration. 旧方法
// */
// public static void registerWith(PluginRegistry.Registrar registrar) {
// final MethodChannel channel = new MethodChannel(registrar.messenger(), "tencent_cos");
// channel.setMethodCallHandler(new CosFlutterPlugin(registrar, channel));
// }
//// FlutterPlugin 的两个 方法
@Override
public void onAttachedToEngine(@NonNull FlutterPlugin.FlutterPluginBinding binding) {
Log.e("onAttachedToEngine", "onAttachedToEngine");
channel = new MethodChannel(binding.getBinaryMessenger(), PLUGIN_NAME);
mApplication = (Application) binding.getApplicationContext();
mContext=binding.getApplicationContext();
channel.setMethodCallHandler(this);
}
@Override
public void onDetachedFromEngine(@NonNull FlutterPlugin.FlutterPluginBinding binding) {
Log.e("onDetachedFromEngine", "onDetachedFromEngine");
channel.setMethodCallHandler(null);
channel = null;
}
///activity 生命周期
@Override
public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
Log.e("onAttachedToActivity", "onAttachedToActivity");
mActivity = binding.getActivity();
}
@Override
public void onDetachedFromActivityForConfigChanges() {
Log.e("onDetachedFromActivityForConfigChanges", "onDetachedFromActivityForConfigChanges");
}
@Override
public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) {
Log.e("onReattachedToActivityForConfigChanges", "onReattachedToActivityForConfigChanges");
}
@Override
public void onDetachedFromActivity() {
Log.e("onDetachedFromActivity", "onDetachedFromActivity");
mActivity = null;
}
}
GeneratedPluginRegistrant.java
package io.flutter.plugins;
import androidx.annotation.Keep;
import androidx.annotation.NonNull;
import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.embedding.engine.plugins.shim.ShimPluginRegistry;
/**
* Generated file. Do not edit.
* This file is generated by the Flutter tool based on the
* plugins that support the Android platform.
*/
@Keep
public final class GeneratedPluginRegistrant {
public static void registerWith(@NonNull FlutterEngine flutterEngine) {
ShimPluginRegistry shimPluginRegistry = new ShimPluginRegistry(flutterEngine);
me.yohom.amap_all_fluttify.AmapAllFluttifyPlugin.registerWith(shimPluginRegistry.registrarFor("me.yohom.amap_all_fluttify.AmapAllFluttifyPlugin"));
flutterEngine.getPlugins().add(new me.yohom.amap_core_fluttify.AmapCoreFluttifyPlugin());
flutterEngine.getPlugins().add(new me.yohom.amap_location_fluttify.AmapLocationFluttifyPlugin());
flutterEngine.getPlugins().add(new me.yohom.amap_map_fluttify.AmapMapFluttifyPlugin());
flutterEngine.getPlugins().add(new me.yohom.amap_search_fluttify.AmapSearchFluttifyPlugin());
flutterEngine.getPlugins().add(new me.yohom.core_location_fluttify.CoreLocationFluttifyPlugin());
flutterEngine.getPlugins().add(new io.flutter.plugins.deviceinfo.DeviceInfoPlugin());
io.flutter.plugins.flutter_plugin_android_lifecycle.FlutterAndroidLifecyclePlugin.registerWith(shimPluginRegistry.registrarFor("io.flutter.plugins.flutter_plugin_android_lifecycle.FlutterAndroidLifecyclePlugin"));
flutterEngine.getPlugins().add(new io.github.ponnamkarthik.toast.fluttertoast.FlutterToastPlugin());
flutterEngine.getPlugins().add(new me.yohom.foundation_fluttify.FoundationFluttifyPlugin());
flutterEngine.getPlugins().add(new io.flutter.plugins.imagepicker.ImagePickerPlugin());
com.vansz.loading_indicator_view.LoadingIndicatorViewPlugin.registerWith(shimPluginRegistry.registrarFor("com.vansz.loading_indicator_view.LoadingIndicatorViewPlugin"));
flutterEngine.getPlugins().add(new io.flutter.plugins.pathprovider.PathProviderPlugin());
flutterEngine.getPlugins().add(new com.baseflow.permissionhandler.PermissionHandlerPlugin());
flutterEngine.getPlugins().add(new io.flutter.plugins.sharedpreferences.SharedPreferencesPlugin());
flutterEngine.getPlugins().add(new com.tekartik.sqflite.SqflitePlugin());
flutterEngine.getPlugins().add(new io.flutter.plugins.urllauncher.UrlLauncherPlugin());
flutterEngine.getPlugins().add(new io.flutter.plugins.videoplayer.VideoPlayerPlugin());
flutterEngine.getPlugins().add(new creativecreatorormaybenot.wakelock.WakelockPlugin());
}
}
MainActivity.java
package com.example.youdianle_app_flutter
import android.os.Bundle
import androidx.annotation.NonNull
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.embedding.engine.plugins.shim.ShimPluginRegistry
import io.flutter.plugins.GeneratedPluginRegistrant;
import io.flutter.plugins.MyFlutterPlugin
import io.flutter.plugins.CosFlutterPlugin
// import android.os.Bundle
// import io.flutter.app.FlutterActivity
// import io.flutter.plugins.GeneratedPluginRegistrant
// import io.flutter.plugins.MyFlutterPlugin
class MainActivity: FlutterActivity() {
//老方法
// override fun onCreate(savedInstanceState: Bundle?) {
// super.onCreate(savedInstanceState)
// GeneratedPluginRegistrant.registerWith(this)
// MyFlutterPlugin.registerWith(this.registrarFor("com.example.flutter_app/plugin"))
// // CosFlutterPlugin.registerWith(this.registrarFor("tencent_cos"))
// }
override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
super.configureFlutterEngine(flutterEngine)
flutterEngine.plugins.add(MyFlutterPlugin());
flutterEngine.getPlugins().add(CosFlutterPlugin());
// GeneratedPluginRegistrant.registerWith(flutterEngine)
// val shimPluginRegistry = ShimPluginRegistry(flutterEngine)
// MyFlutterPlugin.registerWith(shimPluginRegistry.registrarFor("com.example.flutter_app/plugin"));
}
}
flutter调用的代码
//上传图片云
import 'package:flutter/services.dart';
class UploadPic {
static const cosPlugin = const MethodChannel('tencent_cos');
static Future<String> getCos(String path,String way) async {
Map<String, Object> map = {"localPath": path, "way": way};
print(path);
var res = await cosPlugin.invokeMethod("TencentCos.uploadFile", map);
print(res);
return res;
}
}
MethodChannel里的名字要与andriod的一一对应 具体的混合开发基础可以自行学习一下
参考的官方文档
腾讯官方文档 https://cloud.tencent.com/document/product/436/12159
暂时使用的是永久秘钥
后续会考虑改用临时秘钥（官方也推荐使用临时秘钥，永远密码只作为开发环境使用）。