thumbnail on android

.vscode/launch.json

+{
+    // 使用 IntelliSense 了解相关属性。 
+    // 悬停以查看现有属性的描述。
+    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Flutter",
+            "request": "launch",
+            "type": "dart"
+        }
+    ]
+}
\ No newline at end of file

android/src/main/kotlin/com/jarvan/fluwx/FluwxPlugin.kt

 package com.jarvan.fluwx
 
+import android.util.Log
 import com.jarvan.fluwx.constant.CallResult
 import com.jarvan.fluwx.constant.WeChatPluginMethods
 import com.jarvan.fluwx.handler.WeChatPluginHandler
@@ -22,6 +23,7 @@ class FluwxPlugin(private var registrar: Registrar) : MethodCallHandler {
     }
 
     override fun onMethodCall(call: MethodCall, result: Result): Unit {
+        Log.e("---",call.method)
         if(call.method ==  WeChatPluginMethods.INIT ){
             val api = WXAPIFactory.createWXAPI(registrar.context().applicationContext, call.arguments as String?)
             api.registerApp(call.arguments as String)

android/src/main/kotlin/com/jarvan/fluwx/handler/WeChatPluginHandler.kt

@@ -50,11 +50,12 @@ object WeChatPluginHandler {
 
 
     fun handle(call: MethodCall, result: MethodChannel.Result) {
-
+        Log.e("---",call.method)
         if (!wxApi!!.isWXAppInstalled) {
             result.error(CallResult.RESULT_WE_CHAT_NOT_INSTALLED, CallResult.RESULT_WE_CHAT_NOT_INSTALLED, null)
             return
         }
+
         when (call.method) {
             WeChatPluginMethods.SHARE_TEXT -> shareText(call, result)
             WeChatPluginMethods.SHARE_MINI_PROGRAM -> shareMiniProgram(call, result)
@@ -151,11 +152,9 @@ object WeChatPluginHandler {
             if (thumbnail.isNullOrBlank()){
                 thumbnail = imagePath
             }
-            Log.e("tag","$thumbnail")
 
             val thumbnailData = getThumbnailByteArrayCommon(registrar,thumbnail!!)
 
-
 //           val thumbnailData =  Util.bmpToByteArray(bitmap,true)
             handleShareImage(imgObj,call,thumbnailData,result)
         }
@@ -197,15 +196,19 @@ object WeChatPluginHandler {
         msg.title = call.argument("title")
         msg.description = call.argument("description")
         val thumbnail: String? = call.argument("thumbnail")
-        if (thumbnail != null && thumbnail.isNotBlank()) {
-            msg.thumbData = WeChatThumbnailUtil.thumbnailForCommon(thumbnail, registrar)
+
+        launch(UI){
+            if (thumbnail != null && thumbnail.isNotBlank()) {
+                msg.thumbData = getThumbnailByteArrayCommon(registrar,thumbnail)
+            }
+
+            val req = SendMessageToWX.Req()
+            setCommonArguments(call, req, msg)
+            req.message = msg
+            result.success(wxApi?.sendReq(req))
         }
 
 
-        val req = SendMessageToWX.Req()
-        setCommonArguments(call, req, msg)
-        req.message = msg
-        result.success(wxApi?.sendReq(req))
     }
 
     private fun shareVideo(call: MethodCall, result: MethodChannel.Result) {
@@ -222,15 +225,18 @@ object WeChatPluginHandler {
         msg.title = call.argument(WechatPluginKeys.TITLE)
         msg.description = call.argument(WechatPluginKeys.DESCRIPTION)
         val thumbnail: String? = call.argument(WechatPluginKeys.THUMBNAIL)
-        if (thumbnail != null && thumbnail.isNotBlank()) {
-            msg.thumbData = WeChatThumbnailUtil.thumbnailForCommon(thumbnail, registrar)
+
+        launch(UI){
+            if (thumbnail != null && thumbnail.isNotBlank()) {
+                msg.thumbData = getThumbnailByteArrayCommon(registrar,thumbnail)
+            }
+            val req = SendMessageToWX.Req()
+            setCommonArguments(call, req, msg)
+            req.message = msg
+            result.success(wxApi?.sendReq(req))
         }
 
 
-        val req = SendMessageToWX.Req()
-        setCommonArguments(call, req, msg)
-        req.message = msg
-        result.success(wxApi?.sendReq(req))
     }
 
 
@@ -239,18 +245,20 @@ object WeChatPluginHandler {
         webPage.webpageUrl = call.argument("webPage")
         val msg = WXMediaMessage()
 
+        Log.e("tag","share web")
         msg.mediaObject = webPage
         msg.title = call.argument(WechatPluginKeys.TITLE)
         msg.description = call.argument(WechatPluginKeys.DESCRIPTION)
         val thumbnail: String? = call.argument(WechatPluginKeys.THUMBNAIL)
-        if (thumbnail != null && thumbnail.isNotBlank()) {
-            msg.thumbData = WeChatThumbnailUtil.thumbnailForCommon(thumbnail, registrar)
+        launch(UI) {
+            if (thumbnail != null && thumbnail.isNotBlank()) {
+                msg.thumbData = getThumbnailByteArrayCommon(registrar, thumbnail)
+            }
+            val req = SendMessageToWX.Req()
+            setCommonArguments(call, req, msg)
+            req.message = msg
+            result.success(wxApi?.sendReq(req))
         }
-
-        val req = SendMessageToWX.Req()
-        setCommonArguments(call, req, msg)
-        req.message = msg
-        result.success(wxApi?.sendReq(req))
     }
 
     //    private fun createWxImageObject(imagePath:String):WXImageObject?{

android/src/main/kotlin/com/jarvan/fluwx/utils/Util.java

@@ -16,6 +16,8 @@ import junit.framework.Assert;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Bitmap.CompressFormat;
+import android.graphics.Canvas;
+import android.graphics.Rect;
 import android.util.Log;
 
 class Util {
@@ -44,7 +46,42 @@ class Util {
     }
 
 
-    public static byte[] getHtmlByteArray(final String url) {
+    public static byte[] bmpToByteArray2(final Bitmap bmp, final boolean needRecycle) {
+        int i;
+        int j;
+        if (bmp.getHeight() > bmp.getWidth()) {
+            i = bmp.getWidth();
+            j = bmp.getWidth();
+        } else {
+            i = bmp.getHeight();
+            j = bmp.getHeight();
+        }
+
+        Bitmap localBitmap = Bitmap.createBitmap(i, j, Bitmap.Config.ARGB_4444);
+        Canvas localCanvas = new Canvas(localBitmap);
+
+        while (true) {
+            localCanvas.drawBitmap(bmp, new Rect(0, 0, i, j), new Rect(0, 0, i, j), null);
+            if (needRecycle)
+                bmp.recycle();
+            ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
+            localBitmap.compress(Bitmap.CompressFormat.JPEG, 100,
+                    localByteArrayOutputStream);
+            localBitmap.recycle();
+            byte[] arrayOfByte = localByteArrayOutputStream.toByteArray();
+            try {
+                localByteArrayOutputStream.close();
+                return arrayOfByte;
+            } catch (Exception e) {
+                // F.out(e);
+            }
+            i = bmp.getHeight();
+            j = bmp.getHeight();
+        }
+
+    }
+
+        public static byte[] getHtmlByteArray(final String url) {
         URL htmlUrl = null;
         InputStream inStream = null;
         try {

android/src/main/kotlin/com/jarvan/fluwx/utils/WeChatThumbnailUtil.java

@@ -9,6 +9,8 @@ import android.util.Log;
 import com.jarvan.fluwx.constant.WeChatPluginImageSchema;
 import com.jarvan.fluwx.constant.WechatPluginKeys;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -24,13 +26,14 @@ import okhttp3.Request;
 import okhttp3.Response;
 import okhttp3.ResponseBody;
 import okio.BufferedSink;
+import okio.BufferedSource;
 import okio.Okio;
 import okio.Source;
 import top.zibin.luban.Luban;
 
 public class WeChatThumbnailUtil {
     public static final int SHARE_IMAGE_THUMB_LENGTH = 32;
-    private static final int COMMON_THUMB_WIDTH = 150;
+    private static final int COMMON_THUMB_WIDTH = 10;
 
     private WeChatThumbnailUtil() {
     }
@@ -102,58 +105,78 @@ public class WeChatThumbnailUtil {
         int size = SHARE_IMAGE_THUMB_LENGTH * 1024;
 
         try {
-            File file1 = Luban
+            File compressedFile = Luban
                     .with(registrar.context())
+                    .ignoreBy(SHARE_IMAGE_THUMB_LENGTH)
                     .setTargetDir(registrar.context().getCacheDir().getAbsolutePath())
-                    .ignoreBy(32)
                     .get(file.getAbsolutePath());
-            if(file.length() <= 32 * 1024){
-                return Util.bmpToByteArray(BitmapFactory.decodeFile(file1.getAbsolutePath()), true);
-            }else {
-                return continueCompress(file1);
+            if (compressedFile.length() < SHARE_IMAGE_THUMB_LENGTH * 1024) {
+                Source source = Okio.source(compressedFile);
+                BufferedSource bufferedSource = Okio.buffer(source);
+                byte[] bytes = bufferedSource.readByteArray();
+                source.close();
+                bufferedSource.close();
+                return bytes;
+            }
+            byte[] result = createScaledBitmapWithRatio(compressedFile);
+            if (result.length < SHARE_IMAGE_THUMB_LENGTH * 1024) {
+                return result;
             }
 
+            return createScaledBitmap(compressedFile);
+
         } catch (IOException e) {
             e.printStackTrace();
         }
-        return  new byte[]{};
+        return new byte[]{};
     }
 
-    private static byte[] continueCompress(File file){
-        //        Bitmap bitmap = ThumbnailCompressUtil.makeNormalBitmap(file.getAbsolutePath(), -1, 32 * 1024);
-//        if (bitmap.getByteCount() <= size) {
-//            return bmpToByteArray(bitmap,true);
-//        }
-//
-//
-//        byte[] result = Util.bmpToByteArray(bitmap, true);
-//        if (result.length <= size) {
-//            return result;
-//        }
-//
-        Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
-
-        Bitmap bitmap2 = ThumbnailCompressUtil.createScaledBitmapWithRatio(bitmap, COMMON_THUMB_WIDTH, false);
-
-        Util.getHtmlByteArray()
-        if(bitmap2.getByteCount() <= 32 * 1024){
-            return bmpToByteArray(bitmap2,true);
-        }
+    private static byte[] createScaledBitmapWithRatio(File file) {
+
+        Bitmap originBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
+        Bitmap result = ThumbnailCompressUtil.createScaledBitmapWithRatio(originBitmap, COMMON_THUMB_WIDTH, true);
+
+        String path = file.getAbsolutePath();
+        String suffix = path.substring(path.lastIndexOf("."), path.length());
+        return bmpToByteArray(result, suffix, true);
+
+
+    }
 
-        bitmap = ThumbnailCompressUtil.createScaledBitmap(bitmap,COMMON_THUMB_WIDTH,true);
+    private static byte[] createScaledBitmap(File file) {
+        Bitmap originBitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
+        Bitmap result = ThumbnailCompressUtil.createScaledBitmap(originBitmap, COMMON_THUMB_WIDTH, true);
 
-        return bmpToByteArray(bitmap,true);
+        return bmpToByteArray(result, ".png", true);
     }
 
-    private static byte[] bmpToByteArray(Bitmap bitmap, boolean recycle) {
-        int bytes = bitmap.getByteCount();
-        ByteBuffer buf = ByteBuffer.allocate(bytes);
-        bitmap.copyPixelsToBuffer(buf);
+    private static byte[] bmpToByteArray(Bitmap bitmap, String suffix, boolean recycle) {
+//        int bytes = bitmap.getByteCount();
+//        ByteBuffer buf = ByteBuffer.allocate(bytes);
+//        bitmap.copyPixelsToBuffer(buf);
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        Bitmap.CompressFormat format = Bitmap.CompressFormat.PNG;
+        if (suffix.toLowerCase().equals(".jpg") || suffix.toLowerCase().equals(".jpeg")) {
+            format = Bitmap.CompressFormat.JPEG;
+        }
+
+        bitmap.compress(format, 100, byteArrayOutputStream);
+        InputStream inputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
+        byte[] result = null;
+
         if (recycle) {
             bitmap.recycle();
         }
-
-        return buf.array();
+        Source source = Okio.source(inputStream);
+        BufferedSource bufferedSource = Okio.buffer(source);
+        try {
+            result = bufferedSource.readByteArray();
+            source.close();
+            bufferedSource.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return result;
     }
 
     private static File fromAssetForCommon(String thumbnail, PluginRegistry.Registrar registrar) {
@@ -168,8 +191,6 @@ public class WeChatThumbnailUtil {
                 BufferedSink sink = Okio.buffer(Okio.sink(outputStream));
                 Source source = Okio.source(fileDescriptor.createInputStream());
                 sink.writeAll(source);
-                sink.flush();
-
                 source.close();
                 sink.close();
             } catch (IOException e) {
@@ -199,11 +220,8 @@ public class WeChatThumbnailUtil {
                 result = File.createTempFile(UUID.randomUUID().toString(), getSuffix(url));
                 OutputStream outputStream = new FileOutputStream(result);
                 BufferedSink sink = Okio.buffer(Okio.sink(outputStream));
-                Source source = Okio.source(responseBody.byteStream());
-                sink.writeAll(source);
+                sink.writeAll(responseBody.source());
                 sink.flush();
-
-                source.close();
                 sink.close();
             }
 
@@ -214,6 +232,25 @@ public class WeChatThumbnailUtil {
         return result;
     }
 
+
+    private static File inputStreamToFile(InputStream inputStream,String suffix) {
+        File result = null;
+        try {
+            result = File.createTempFile(UUID.randomUUID().toString(), suffix);
+            OutputStream outputStream = new FileOutputStream(result);
+            BufferedSink sink = Okio.buffer(Okio.sink(outputStream));
+            Source source = Okio.source(inputStream);
+            sink.writeAll(source);
+            sink.flush();
+            sink.close();
+            source.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return result;
+    }
+
     private static String getSuffix(String path) {
         String suffix = ".jpg";
         int index = path.lastIndexOf(".");

example/.vscode/launch.json

+{
+    // 使用 IntelliSense 了解相关属性。 
+    // 悬停以查看现有属性的描述。
+    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Flutter",
+            "request": "launch",
+            "type": "dart"
+        }
+    ]
+}
\ No newline at end of file

example/lib/main.dart

@@ -12,7 +12,7 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  String _platformVersion = 'Unknown';
+
 
   @override
   void initState() {
@@ -27,22 +27,7 @@ class _MyAppState extends State<MyApp> {
 
   // 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.
-    try {
-//      platformVersion = await Fluwx.platformVersion;
-    } 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
@@ -58,14 +43,18 @@ class _MyAppState extends State<MyApp> {
                 var fluwx = Fluwx();
 //                thumbnail: 'http://b.hiphotos.baidu.com/image/h%3D300/sign=4bfc640817d5ad6eb5f962eab1c939a3/8718367adab44aedb794e128bf1c8701a08bfb20.jpg',
                 fluwx.share(
-                    WeChatShareImageModel(
-                    image: 'http://a.hiphotos.baidu.com/image/h%3D300/sign=91a426229082d158a4825fb1b00819d5/0824ab18972bd4077557733177899e510eb3096d.jpg',
-                    thumbnail:'http://a.hiphotos.baidu.com/image/h%3D300/sign=91a426229082d158a4825fb1b00819d5/0824ab18972bd4077557733177899e510eb3096d.jpg',
-                    transaction:
-                        'http://b.hiphotos.baidu.com/image/h%3D300/sign=4bfc640817d5ad6eb5f962eab1c939a3/8718367adab44aedb794e128bf1c8701a08bfb20.jpg',
-                    scene: WeChatScene.SESSION));
+                  WeChatShareWebPageModel(
+                    webPage: "https://www.jianshu.com/",
+                    title: "简书",
+
+                  )
+                    ).then((result){
+                    print("--$result");
+                },onError: (msg){
+                      print(msg);
+                });
               },
-              child: new Text("share text to wechat")),
+              child: new Text("share ")),
         ),
       ),
     );

lib/src/fluwx.dart

@@ -33,6 +33,7 @@ class Fluwx {
   }
 
   Future share(WeChatShareModel model) async {
+    var s = _shareModelMethodMapper[model.runtimeType];
     if (_shareModelMethodMapper.containsKey(model.runtimeType)) {
       return await _channel.invokeMethod(
           _shareModelMethodMapper[model.runtimeType], model.toMap());

lib/src/models/wechat_share_models.dart

@@ -176,6 +176,7 @@ class WeChatShareMusicModel extends WeChatShareModel {
     this.title: "",
     this.description: "",
     this.musicDataUrl,
+    this.musicLowBandDataUrl,
     String thumbnail,
     WeChatScene scene,
     String messageExt,
@@ -269,7 +270,7 @@ class WeChatShareWebPageModel extends WeChatShareModel {
 
   WeChatShareWebPageModel({
     String transaction,
-    this.webPage,
+    @required this.webPage,
     this.title: "",
     this.description: "",
     String thumbnail,