将 android 代码转换为 iOS，用于将位图图像输入从本机 iOS 插件发送到 phone-gap

Question

我尝试了很多方法将图像输入发送到 phone-gap 从本地 iOS plugin.But 最终遇到了一个问题..请任何人告诉我我在哪里实施错误？

这是我的 phonegap 插件方法代码：

 myPlugin.convertToFile("profileBase64Callback", citizen.profileImage,  function(){ }, function(){ });//citizen.profileImage is of type base64 data

使用从原生 iOS 到 phonegap

的响应图像

 function profileBase64Callback(imageURI){

   console.log("profileImage path :" + imageURI);

}

android版本原生插件文件：

       if(action.equals("convertToFile")){
        try{
               JSONObject json = args.getJSONObject(0);
               callbackFunction = (String) json.get("callback");
               String base64 = json.getString("base64");

                Log.d(TAG, "base64 content"+base64);
                byte[] decodedString = Base64.decode(base64, Base64.DEFAULT);
                Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);
                String filePath = convertBitmapToFile(decodedByte);
                //callbackContext.success(requestId);
                sendData(filePath);
        }catch(Exception e){
            Log.d(TAG + ": error in start: ", e.getMessage(), e);
        }
        }

//convertBitmapToFile 在android

中的实现

   private String convertBitmapToFile(Bitmap photo)
   {
      File mypath = null;
      try {
        File dir;
            File storage = null;
            // =  Environment.getExternalStorageDirectory();
            if (Environment.getExternalStorageState() == null) {
                storage = Environment.getDataDirectory();
            }else if(Environment.getExternalStorageState() != null){
                storage = Environment.getExternalStorageDirectory();
            }

            dir = new File(storage.getAbsolutePath() + “/AppName/profilePicture");

            if (!dir.exists())
            {
                dir.mkdirs();
                File file = new File(dir, ".nomedia");
                if(!file.exists())
                    file.createNewFile();
            }

          String uniqueId = "AppName"+Utility.getCurrentDate()+"_"+Utility.getCurrentTime()+"_"+Math.random();
          String current = uniqueId + ".jpg";

          mypath = new File(dir, current);
          FileOutputStream mFileOutStream = new FileOutputStream(mypath);
          photo.compress(Bitmap.CompressFormat.JPEG, 10, mFileOutStream);
          ByteArrayOutputStream stream = new ByteArrayOutputStream();
          photo.compress(CompressFormat.JPEG, 0, stream);
          mFileOutStream.flush();
          mFileOutStream.close();

        return mypath.getAbsolutePath();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        return null;
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

我正在通过这种方法获取图像，但是当使用控制台以 javascript 方法打印时，profilepicture 处于未定义状态。任何人都可以告诉我上面从 android [=40 的转换=] 或者我应该使用哪种方法将图像转换为解码数组，bitmapimage

Answer 1

这解决了我的问题：

Base64File.m

- (void)convertToFile:(CDVInvokedUrlCommand *)command{

    NSLog(@"--convertToFile Plugin");
    NSString *methodname1;
    NSDictionary* options = [[NSDictionary alloc]init];
    if ([command.arguments count] > 0) {
       options = [command argumentAtIndex:0];
       methodname1 =[options objectForKey:@"callback"];
 }

   //Now data is decoded. You can convert them to UIImage

   NSData* data = [[NSData alloc] initWithBase64EncodedString:methodname1 options:0];
   NSString  *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:@"tmp/Test.png"]; // identity the home directory and file name

   [data writeToFile:jpgPath atomically:YES];

   NSString *appndStr = [@"file://" stringByAppendingString:jpgPath];
   NSLog(@"----appndStr--%@",appndStr);

   NSDictionary* jsonDict = @{
                               @"imagURI": appndStr,
                              };

    NSData* jsonData         = [NSJSONSerialization dataWithJSONObject:jsonDict options:0 error:nil];

   //Generate the JSON String
    NSString* jsonString1   = [[NSString alloc] initWithBytes:[jsonData bytes]
                                                   length:[jsonData length]
                                                 encoding:NSUTF8StringEncoding];
    NSString *echo = jsonString1;


   dispatch_async(dispatch_get_main_queue(), ^{
       CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:@"OK"];
       [pluginResult setKeepCallbackAsBool:true];

       [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];

        //Send data to Javascript callback Method
        NSString * jsCallBack = [NSString stringWithFormat:@"%@(%@);", @"profileBase64Callback", echo];
        [self.webView stringByEvaluatingJavaScriptFromString:jsCallBack];

    });

 }

Profile.js

  function profileBase64Callback(imageURI){
      console.log("profileImage path :" + imageURI.imagURI);
   }

控制台输出：

profile图片路径:file:///Users/samDesk/Library/Developer/CoreSimulator/Devices/C8427646-AB64-4063-A7BE-57547DDA656E/data/Applications/DDD4B4DR-2803-4615-9EC9-5840EAAD6709/tmp/Test.png

将 android 代码转换为 iOS，用于将位图图像输入从本机 iOS 插件发送到 phone-gap

Conversion of android code to iOS for sending bitmap image input to phone-gap from native iOS plugin

android

objective-c

ios

phonegap-plugins

cordova