Android 在 snapchat 上分享图片

Question

我正在使用此代码来分享乐谱的屏幕截图:

Intent sharingIntent = new Intent(Intent.ACTION_SEND);
        sharingIntent.setType("image/png");
        Uri image = Uri.parse(Environment.getExternalStorageDirectory().toString() + "/sharescore.png");
        try {
            // create bitmap screen capture
            View v1 = v.getRootView();
            v1.setDrawingCacheEnabled(true);
            Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
            v1.setDrawingCacheEnabled(false);

            File imageFile = new File(image.getPath());

            FileOutputStream outputStream = new FileOutputStream(imageFile);
            int quality = 100;
            bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
            outputStream.flush();
            outputStream.close();
        } catch (Throwable e) {
            // Several error may come out with file handling or OOM
            e.printStackTrace();
        }
        sharingIntent.putExtra(Intent.EXTRA_STREAM, image);
        startActivity(Intent.createChooser(sharingIntent, getString(R.string.share_via)));

当我使用“imgae/jpeg”类型时，它适用于 Whatsapp Twitter 等，但不适用于 snapchat 和 Instagram。它导致错误“无法打开所选图像”。我怎样才能使它适用于 snapchat 和 instagram。

Answer 1

他们的问题是，我将屏幕截图保存到 sd 卡，但 snapchat 没有从外部存储读取文件的权限。我必须使用只能由我的应用程序访问的应用程序目录，并且必须使用我自己的文件提供程序 (com.test.fileprovider) 更改权限，以便 snapchat 可以访问它。这是代码:

Intent sharingIntent = new Intent(Intent.ACTION_SEND);
        sharingIntent.setType("image/jpg");
        sharingIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        File newFile = new File(getContext().getCacheDir(), "share_score.jpg");
        Log.d(getClass().getSimpleName(), newFile.getAbsolutePath());
        Uri image = FileProvider.getUriForFile(getContext(), "com.test.fileprovider", newFile);
        try {
            // create bitmap screen capture
            View v1 = v.getRootView();
            v1.setDrawingCacheEnabled(true);
            Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
            v1.setDrawingCacheEnabled(false);

            FileOutputStream outputStream = new FileOutputStream(newFile);
            int quality = 100;
            bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
            outputStream.flush();
            outputStream.close();
        } catch (Throwable e) {
            // Several error may come out with file handling or OOM
            e.printStackTrace();
        }
        sharingIntent.putExtra(Intent.EXTRA_STREAM, image);
        startActivity(Intent.createChooser(sharingIntent, getString(R.string.share_via)));