在其他应用程序中共享图像 [英] Sharing images in other application

问题描述

我有带有图像的应用程序，并且希望共享由用户在其他一些应用程序中选择的图像.从这里的其他问题中，我知道我必须将图像放置在公共场所，以便其他应用程序可以访问它.但是我仍然收到错误消息:没有应用程序可以执行此操作"，我在哪里出错了?将图片复制到SD卡的代码:

I have application with images and I want share image which is choosen by user in some other application. From other question here I know that I must put the image in public place so it can be accesed by other application. But I still get error "no application can perform this action" any idea where am I doing mistake? Code for copying image to SD card:

String path = Environment.getExternalStorageDirectory().toString();
  File file = new File(path,String.valueOf(idOfImage));
      if (!file.exists()) 
           {
      Bitmap myBitmap = BitmapFactory.decodeResource(getResources(),idOfImage);
      FileOutputStream out = null;
          try {
                 out = new FileOutputStream(file);
                 myBitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
              } catch (Exception e) 
                {
                   e.printStackTrace();
                } finally {
          try {
                 if (out != null) 
                {
                   out.close();
                }
                } catch (IOException e) 
                 {
                   e.printStackTrace();
                 }
            }

用于发送意图和选择选择器的代码:

Code for sending the intent and picking chooser:

Intent shareIntent = new Intent();
                    shareIntent.setAction(Intent.ACTION_SEND);
                    Uri uri = Uri.fromFile(file);
                    shareIntent.putExtra(Intent.EXTRA_STREAM, uri);   
                      StartActivity(Intent.createChooser(shareIntent,getResources().getText(R.string.share)));

感谢答案.

sharedIntent.setType("image/png")时工作正常使用Gmail和G +添加了泳道，但不适用于Messengers FB和其他人.

Works fine when sharingIntent.setType("image/png"); lane added, with Gmail and G+ , but doesnt work with Messengers FB and others.

推荐答案

尝试此代码

  Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);

  shareIntent.setType("image/*");

  shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, (String)                       
  v.getTag(R.string.app_name));

  shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri); // put your image URI

  PackageManager pm = v.getContext().getPackageManager();

   List<ResolveInfo> activityList = pm.queryIntentActivities(shareIntent, 0);

   for (final ResolveInfo app : activityList) 
     {
     if ((app.activityInfo.name).contains("facebook")) 
     {

       final ActivityInfo activity = app.activityInfo;

       final ComponentName name = new ComponentName(activity.applicationInfo.packageName, activity.name);

      shareIntent.addCategory(Intent.CATEGORY_LAUNCHER);

      shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

      shareIntent.setComponent(name);

      v.getContext().startActivity(shareIntent);

      break;
    }
  }

编辑1

Intent shareIntent = new Intent();
         shareIntent.setAction(Intent.ACTION_SEND);

         shareIntent.putExtra(Intent.EXTRA_STREAM,Uri.fromFile(new File(filePath)));  //optional//use this when you want to send an image
         shareIntent.setType("image/jpeg");
         shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
         startActivity(Intent.createChooser(shareIntent, "send"));

使用此代码我尝试过，它可以在我这边工作

use this code i tried it and it works here at my side

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