来自画廊的照片旋转 90 度和小问题

Posted 2023-04-17

【中文标题】来自画廊的照片旋转 90 度和小问题

【英文标题】：Issue With Photo from Gallery Rotated 90 Degrees and Small

【发布时间】：2020-09-06 06:30:44

【问题描述】：

我有一个问题，当从手机的图库中选择个人资料图片时，它会旋转 90 度。即使我关闭然后重新打开应用程序，这种情况仍然存在。此外，个人资料图片的尺寸要小得多，我似乎无法增加它的尺寸。如果有办法增加尺寸，那就太好了。任何帮助表示赞赏。

        btn = findViewById<View>(R.id.btn_profile) as Button
        imageview = findViewById<View>(R.id.profile_image) as ImageView

        val wallpaperDirectory = File(getExternalFilesDir(null).toString() + IMAGE_DIRECTORY)

        var listImages : Array<File>? = null
        listImages = wallpaperDirectory.listFiles()

        if(listImages != null && listImages.size!! > 0)

            val img2 = BitmapFactory.decodeFile(listImages[0].absolutePath)

            val round = RoundedBitmapDrawableFactory.create(resources, img2)
            round.isCircular = true
            profile_image.setImageDrawable(round)

        
        else 
            val img = BitmapFactory.decodeResource(resources, R.mipmap.profile_image)
            val round = RoundedBitmapDrawableFactory.create(resources, img)
            round.isCircular = true
            profile_image.setImageDrawable(round)
            println("hit hit hit")

        

    //    Profile Image
    private fun showPictureDialog() 
        val pictureDialog = AlertDialog.Builder(this)
        pictureDialog.setTitle("Select Action")
        val pictureDialogItems = arrayOf("Select Photo From Gallery", "Capture Photo From Camera")
        pictureDialog.setItems(pictureDialogItems
        )  dialog, which ->
            when (which) 
                0 -> choosePhotoFromGallary()
                1 -> takePhotoFromCamera()
            
        
        pictureDialog.show()
    

    fun choosePhotoFromGallary() 
        val galleryIntent = Intent(Intent.ACTION_PICK,
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI)

        startActivityForResult(galleryIntent, GALLERY)
    

    fun takePhotoFromCamera() 
        val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
        startActivityForResult(intent, CAMERA)
    

    public override fun onActivityResult(requestCode:Int, resultCode:Int, data: Intent?) 

        super.onActivityResult(requestCode, resultCode, data)

        if (Activity.RESULT_OK == resultCode && requestCode == GALLERY)
        
            if (data != null)
            
                val contentURI = data.data
                try
                
                    val bitmap = MediaStore.Images.Media.getBitmap(this.contentResolver, contentURI)
                    val round = RoundedBitmapDrawableFactory.create(resources, bitmap)
                    round.isCircular = true

                    val path = saveImage(bitmap)
                    Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
                    imageview!!.setImageDrawable(round)

                
                catch (e: IOException) 
                    e.printStackTrace()
                    Toast.makeText(this@MainActivity, "Failed!", Toast.LENGTH_SHORT).show()
                
            
        
        else if (Activity.RESULT_OK == resultCode && requestCode == CAMERA)
        
            val thumbnail = data!!.extras!!.get("data") as Bitmap
            val round = RoundedBitmapDrawableFactory.create(resources, thumbnail)
            round.isCircular = true
            imageview!!.setImageDrawable(round)
            saveImage(thumbnail)
            Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()

        
    

    fun saveImage(myBitmap: Bitmap):String 
        val bytes = ByteArrayOutputStream()
        myBitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes)
        val wallpaperDirectory = File(getExternalFilesDir(null).toString() + IMAGE_DIRECTORY)
        wallpaperDirectory.deleteRecursively()

        // have the object build the directory structure, if needed.
        Log.d("fee",wallpaperDirectory.toString())
        if (!wallpaperDirectory.exists())
        

            wallpaperDirectory.mkdirs()
        

        try
        
            Log.d("heel",wallpaperDirectory.toString())
            val f = File(wallpaperDirectory, ((Calendar.getInstance()
                .getTimeInMillis()).toString() + ".jpg"))
            f.createNewFile()
            val fo = FileOutputStream(f)
            fo.write(bytes.toByteArray())
            MediaScannerConnection.scanFile(this,
                arrayOf(f.getPath()),
                arrayOf("image/jpeg"), null)
            fo.close()
            Log.d("TAG", "File Saved::--->" + f.getAbsolutePath())

            return f.getAbsolutePath()
        
        catch (e1: IOException) 
            e1.printStackTrace()
        

        return ""
    
    companion object 
        private val IMAGE_DIRECTORY = "/demonuts"

    

    //    Profile Image

【参考方案1】：

我想通了——我忘了​​在 var bitmap 之后输入val rotatedBitmap = bitmap.rotate(90F) 来旋转它