Kotlin相机未将图像保存到文件

Question

相机打开，允许我拍照，但不能将图像保存到目录中。我希望将文件保存到图片。我尝试放置getExternalStoragePublicDirectory而不是getExternalFileDir，但这会使应用返回初始的activity。 我希望activity拍照，然后允许我的应用从文件目录中手动选择该图片

//相机活动

    package org.wit.shiploggerm1a2.activities
    import android.Manifest.permission.CAMERA
    import android.Manifest.permission.READ_EXTERNAL_STORAGE
    import android.app.Activity
    import android.content.Intent
    import android.content.pm.PackageManager
    import android.graphics.Bitmap
    import android.graphics.BitmapFactory
    import android.net.Uri
    import android.os.Bundle
    import android.os.Environment
    import android.provider.MediaStore
    import android.support.v4.app.ActivityCompat
    import android.support.v4.content.ContextCompat
    import android.support.v4.content.FileProvider
    import android.support.v7.app.AppCompatActivity
    import android.view.View
    import android.widget.Button
    import android.widget.ImageView
    import android.widget.Toast
    import org.wit.shiploggerm1a2.R
    import java.io.File
    import java.io.IOException
    import java.text.SimpleDateFormat
    import java.util.*


    class CameraActivity : AppCompatActivity() {
        lateinit var imageView: ImageView
        lateinit var captureButton: Button

    val REQUEST_IMAGE_CAPTURE = 1


    private val PERMISSION_REQUEST_CODE: Int = 101

    private var mCurrentPhotoPath: String? = null;
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_camera)

        imageView = findViewById(R.id.image_view)
        captureButton = findViewById(R.id.btn_capture)
        captureButton.setOnClickListener(View.OnClickListener {
            if (checkPersmission()) takePicture() else requestPermission()
        })


    }


    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
        when (requestCode) {
            PERMISSION_REQUEST_CODE -> {

                if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)
                    && grantResults[1] == PackageManager.PERMISSION_GRANTED) {

                    takePicture()

                } else {
                    Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show()
                }
                return
            }

            else -> {

            }
        }
    }

    private fun takePicture() {

        val intent: Intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
        val file: File = createFile()

        val uri: Uri = FileProvider.getUriForFile(
            this,
            "com.example.android.fileprovider",
            file
        )
        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri)
        startActivityForResult(intent, REQUEST_IMAGE_CAPTURE)

    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == Activity.RESULT_OK) {

            val auxFile = File(mCurrentPhotoPath)

            var bitmap: Bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath)
            imageView.setImageBitmap(bitmap)

        }
    }

    private fun checkPersmission(): Boolean {
        return (ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA) ==
                PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this,
            android.Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)
    }

    private fun requestPermission() {
        ActivityCompat.requestPermissions(this, arrayOf(READ_EXTERNAL_STORAGE, CAMERA), PERMISSION_REQUEST_CODE)
    }

    @Throws(IOException::class)
    private fun createFile(): File {
        val timeStamp: String = SimpleDateFormat("yyyyMMdd_HHmmss").format(Date())
        val storageDir: File = getExternalFilesDir(Environment.DIRECTORY_PICTURES)
        return File.createTempFile(
            "JPEG_${timeStamp}_", /* prefix */
            ".jpg", /* suffix */
            storageDir /* directory */
        ).apply {
            mCurrentPhotoPath = absolutePath
        }
    }
}

//清单

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="org.wit.shiploggerm1a2">
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>




    <application

            android:name=".main.MainApp"
            android:allowBackup="true"
            android:icon="@mipmap/shortcut_round"
            android:label=""
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
        <activity android:name=".activities.ShipLoggerActivity">
        </activity>
        <activity android:name=".activities.CameraActivity">

        </activity>
        <provider
                android:name="android.support.v4.content.FileProvider"
                android:authorities="com.example.android.fileprovider"
                android:exported="false"
                android:grantUriPermissions="true">
            <meta-data
                    android:name="android.support.FILE_PROVIDER_PATHS"
                    android:resource="@xml/file_path">

            </meta-data>
        </provider>

        <activity android:name=".activities.ShipLoggerListActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>


    </application>

</manifest>