android - Kotlin 未解析引用 : with

Question

我已经尝试过使缓存失效。清理构建和重建项目也已完成。但我仍然不断收到 Unresolved reference :我正在使用 picasso 图书馆，我的其他 Activity 运行良好。 Picasso库已经在gradle中实现了。语言版本为1.2 Android Studio

代码:

import android.app.Activity
import android.content.Intent
import android.graphics.Bitmap
import android.net.Uri
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import android.widget.Toast
import chatonapp.project.com.chatonapp.R
import com.google.android.gms.tasks.Task
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.FirebaseUser
import com.google.firebase.database.*
import com.google.firebase.storage.FirebaseStorage
import com.google.firebase.storage.StorageReference
import com.google.firebase.storage.UploadTask
import com.squareup.picasso.Picasso
import com.theartofdev.edmodo.cropper.CropImage
import id.zelory.compressor.Compressor
import kotlinx.android.synthetic.main.activity_settings.*

import java.io.ByteArrayOutputStream
import java.io.File

class SettingsActivity : AppCompatActivity() {
    var mDatabase: DatabaseReference? = null
    var mCurrentUser: FirebaseUser? = null
    var mStorageRef: StorageReference? = null
    var GALLERY_ID: Int = 1

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_settings)


        mCurrentUser = FirebaseAuth.getInstance().currentUser
        mStorageRef = FirebaseStorage.getInstance().reference


        var userId = mCurrentUser!!.uid

        mDatabase = FirebaseDatabase.getInstance().reference
                .child("Users")
                .child(userId)

        mDatabase!!.addValueEventListener(object : ValueEventListener{

            override fun onDataChange(dataSnapshot: DataSnapshot?) {
                var displayName = dataSnapshot!!.child("display_name").value
                var image = dataSnapshot!!.child("image").value.toString()
                var userStatus = dataSnapshot!!.child("status").value
                var thumbnail = dataSnapshot!!.child("thumb_image").value

                settinsDisplayName.text = displayName.toString()
                settingsStatusText.text = userStatus.toString()

                if (!image!!.equals("default")) {
                    Picasso.with(applicationContext)
                            .load(image)
                            .placeholder(R.drawable.profile_img)
                            .into(settingsProfileID)
                }
            }

            override fun onCancelled(databaseErrorSnapshot: DatabaseError?) {

            }

        })


        settingsChangeStatus.setOnClickListener {
            var intent = Intent(this, StatusActivity::class.java)
            intent.putExtra("status", settingsStatusText.text.toString().trim())
            startActivity(intent)

        }

        settingsChangeImgBtn.setOnClickListener {
            var galleryIntent = Intent()
            galleryIntent.type = "image/*"
            galleryIntent.action = Intent.ACTION_GET_CONTENT
            startActivityForResult(Intent.createChooser(galleryIntent, "SELECT_IMAGE"), GALLERY_ID)
        }

    }

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

            var image: Uri = data!!.data

            CropImage.activity(image)
                    .setAspectRatio(1, 1)
                    .start(this)

        }

        if (requestCode === CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
            val result = CropImage.getActivityResult(data)

            if (resultCode === Activity.RESULT_OK) {

                val resultUri = result.uri

                var userId = mCurrentUser!!.uid
                var thumbFile = File(resultUri.path)

                var thumbBitmap = Compressor(this)
                        .setMaxWidth(200)
                        .setMaxHeight(200)
                        .setQuality(65)
                        .compressToBitmap(thumbFile)



                var byteArray = ByteArrayOutputStream()
                thumbBitmap.compress(Bitmap.CompressFormat.JPEG,  100,
                        byteArray)
                var thumbByteArray: ByteArray
                thumbByteArray = byteArray.toByteArray()

                var filePath = mStorageRef!!.child("chat_profile_images")
                        .child(userId + ".jpg")

                //Create another directory for thumbimages ( smaller, compressed images)
                var thumbFilePath = mStorageRef!!.child("chat_profile_images")
                        .child("thumbs")
                        .child(userId + ".jpg")


                filePath.putFile(resultUri)
                        .addOnCompleteListener{
                            task: Task<UploadTask.TaskSnapshot> ->
                            if (task.isSuccessful) {


                                var donwloadUrl = task.result.downloadUrl.toString()


                                var uploadTask: UploadTask = thumbFilePath
                                        .putBytes(thumbByteArray)

                                uploadTask.addOnCompleteListener{
                                    task: Task<UploadTask.TaskSnapshot> ->
                                    var thumbUrl = task.result.downloadUrl.toString()

                                    if (task.isSuccessful) {


                                        var updateObj = HashMap<String, Any>()
                                        updateObj.put("image", donwloadUrl)
                                        updateObj.put("thumb_image", thumbUrl)


                                        mDatabase!!.updateChildren(updateObj)
                                                .addOnCompleteListener {
                                                    task: Task<Void> ->
                                                    if (task.isSuccessful) {
                                                        Toast.makeText(this, "Profile Image Saved!",
                                                                Toast.LENGTH_LONG)
                                                                .show()

                                                    }else {

                                                    }
                                                }

                                    }else {

                                    }
                                }

                            }
                        }
            }else if (resultCode === CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
                val error = result.error
                Log.d("Error", error.toString())
            }
        }

    }


}

问题发生在这里:Picasso.with

 if (!image!!.equals("default")) {
                    Picasso.with(applicationContext)
                            .load(image)
                            .placeholder(R.drawable.profile_img)
                            .into(settingsProfileID)
                }

我该如何解决这个问题？

Answer 1

今晚我遇到了同样的问题，在查看 picasso 网站后，我注意到 .with 不再使用。 .get() 工作正常。尝试这样的事情。

Picasso.get()
    .load(url)
    .placeholder(R.drawable.user_placeholder)
    .error(R.drawable.user_placeholder_error)
    .into(imageView);

我的代码看起来像这样

val thumbnailImage = holder.view.imageView_Video_Thumbnail
Picasso.get().load(movieTitle.imageUrl).into(thumbnailImage)

希望对某人有帮助。