与输出流交互时不适当的阻塞方法调用

问题描述

我通过执行以下操作将图像保存到存储中：

private fun finallySave() {
    if (imageView.drawable != null) {
        scopeForSaving.launch { savetoStorage() }
    } else {
        Toast.makeText(this,"Please load image first",Toast.LENGTH_SHORT).show()
    }
}

private suspend fun savetoStorage() {
    var outFile: File? = null
    withContext(@R_502[email protected]) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            val resolver = [email protected]
            val contentValues = ContentValues().apply {
                put(
                    MediaStore.MediaColumns.@R_502_6422@PLAY_NAME,"Draw_Easy " + System.currentTimeMillis() + ".png"
                )
                put(MediaStore.MediaColumns.MIME_TYPE,"image/jpeg")
                put(MediaStore.MediaColumns.RELATIVE_PATH,"DCIM/Draw Easy")
            }

            val uri =
                resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,contentValues)

            uri?.let { uri1 ->
                resolver.openOutputStream(uri1).use {
                    ((imageView.drawable as BitmapDrawable).bitmap).compress(
                        Bitmap.CompressFormat.PNG,100,it
                    )
                }
            }
            outFile = (uri?.path)?.let { File(it) }
        } else {
            try {
                outFile =
                    File(
                        getimageDirectory(),"Draw_Easy " + System.currentTimeMillis() + ".png"
                    )
                val outputStream = outFile?.let { FileOutputStream(it) }
                ((imageView.drawable as BitmapDrawable).bitmap).compress(
                    Bitmap.CompressFormat.PNG,outputStream
                )
                outputStream?.flush()
                outputStream?.close()
                scanFile(outFile!!,"image/png")
            } catch (e: java.lang.Exception) {
                Log.e("TAG","Failed",e)
            }
        }
    }
    Toast.makeText(
        this@MainActivity,"Image Saved to ${outFile?.absolutePath}",Toast.LENGTH_LONG
    ).show()
}

无论在代码中与输出流进行交互时，尽管运行withContext（@R_502[email protected]）的“所谓的”阻塞方法调用，它仍会给我“不适当的阻塞方法调用”错误。

有关更多信息，请参见this，this和this图片。

编辑：scopeForSaving的逻辑如下：

private var job = Job() //initialization of job
private var scopeForSaving = Coroutinescope(job + @R_502[email protected])

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

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