当minifyEnabled = true

Question

我在Realm的上使用TabbedLayout。 Floating Action Button上的fragment将使用Dialog包装器在CameraKit上启动默认的相机应用。

我使用了示例here。

我在MainActivity上这样声明：

package com.example.app

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.viewpager.widget.ViewPager
import com.example.app.ui.main.SectionsPagerAdapter
import com.google.android.material.tabs.TabLayout
import io.realm.Realm
import io.realm.RealmConfiguration

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val sectionsPagerAdapter = SectionsPagerAdapter(this, supportFragmentManager)
        val viewPager: ViewPager = findViewById(R.id.view_pager)
        viewPager.adapter = sectionsPagerAdapter
        val tabs: TabLayout = findViewById(R.id.tabs)
        tabs.setupWithViewPager(viewPager)

        Realm.init(this)

        val configuration = RealmConfiguration.Builder()
            .name("my.db")
            .deleteRealmIfMigrationNeeded()
            .schemaVersion(0)
            .build()

        Realm.setDefaultConfiguration(configuration)

    }
}

列表片段：

import android.content.Intent
import android.os.Bundle
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.LinearLayoutManager
import com.google.android.material.floatingactionbutton.FloatingActionButton
import io.realm.Realm
import io.realm.RealmResults
import kotlinx.android.synthetic.main.fragment_list.*

class ListFragment : Fragment(), ListRecyclerAdapter.OnListListener {

    private lateinit var layoutManager : LinearLayoutManager
    lateinit var adapter : ListRecyclerAdapter
    private lateinit var list : ArrayList<ListRealmObject>
    lateinit var fab : FloatingActionButton
    private var
            realm = Realm.getDefaultInstance()
    private var results : RealmResults<ListRealmObject> =
        realm.where<ListRealmObject>(ListRealmObject::class.java).findAll()

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {

        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_list, container, false)
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        fab = fab
    }

    override fun onResume() {
        super.onResume()

        layoutManager = LinearLayoutManager(activity)
        listRecyclerView.layoutManager = layoutManager

        fab.setOnClickListener {

            startActivity(Intent(activity, ListActivity::class.java))
/*            val nextFrag = ListFragment()
            requireActivity().supportFragmentManager.beginTransaction()
                .replace(R.id.fragment_list_layout, nextFrag, "findThisFragment")
                .addToBackStack(null)
                .commit()*/
        }

        getAllFarmers()
    }

    companion object {
        @JvmStatic
        fun newInstance() =
            ListFragment().apply {
                arguments = Bundle().apply {
                }
            }
    }

    private fun getAllList() {

        list = ArrayList()

        listRecyclerView.adapter = ListRecyclerAdapter(activity, results, this)

        listRecyclerView.adapter!!.notifyDataSetChanged()

    }

    override fun onListClick(position: Int) {
        Log.d("ListClick", "onListClick : ${results[position]}")

        val selectedList = results[position]
        val intent = Intent(context, ListUpdateActivity::class.java)
        if (selectedList != null) {
            intent.putExtra("farmer", selectedList.getID())
            startActivity(intent)
        }
    }
}

AddActivity：

import android.Manifest
import android.app.AlertDialog
import android.app.DatePickerDialog
import android.content.DialogInterface
import android.content.pm.PackageManager
import android.os.Bundle
import android.os.Environment
import android.text.Editable
import android.text.TextWatcher
import android.view.View
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.core.view.forEach
import com.bumptech.glide.Glide
import com.bumptech.glide.load.engine.DiskCacheStrategy
import com.camerakit.CameraKitView
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.google.android.material.snackbar.Snackbar
import io.realm.Realm
import kotlinx.android.synthetic.main.activity_add.*
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.util.*

class AddActivity : AppCompatActivity() {


    private val ALL_PERMISSIONS = 1


    private var relativeLocation : String = ""
    private var relative

    FileName : String = ""

    private fun openCameraDialog() {

        //Inflating the AlertDialog
        val alertDialog: AlertDialog.Builder = AlertDialog.Builder(this@AddActivity)
        val inflater = layoutInflater
        val dialogView: View = inflater.inflate(R.layout.camera_view, null)
        alertDialog.setView(dialogView)

        //CameraView UI
        val screen: AlertDialog = alertDialog.create()
        val cameraKitView: CameraKitView = dialogView.findViewById(R.id.cameraKitView)
        val fabCapture: FloatingActionButton = dialogView.findViewById(R.id.fabCapture)
        val fabDone: FloatingActionButton = dialogView.findViewById(R.id.fabDone)
        val fabRepeat: FloatingActionButton = dialogView.findViewById(R.id.fabRepeat)
        val imageView: ImageView = dialogView.findViewById(R.id.imgView)

        //Handler
        // val image: Array<File?> = arrayOf<File?>(null)

        var image : File? = null

        //We start the camera
        cameraKitView.onStart()

        //Capturing action
        fabCapture.setOnClickListener {
            cameraKitView.captureImage { cameraKitView, bytes ->
                val folder =
                    File(relativeLocation)
                if (!folder.exists()) folder.mkdirs()
                /*image[0] =
                    File("${folder.absoluteFile}${File.separator}$relativeFileName.jpg")*/
                image =
                    File("${folder.absoluteFile}${File.separator}${relativeFileName}_${getDate(System.currentTimeMillis(), "MM/dd/yyyy hh:mm:ss.SSS")}.jpg")

                // if (image[0]?.exists()!!) image[0]?.delete()
                if (image?.exists()!!) image?.delete()
                val outputStream: FileOutputStream?
                try {
                    // outputStream = FileOutputStream(image[0]?.path, false)
                    outputStream = FileOutputStream(image?.path, false)
                    outputStream.write(bytes)
                    outputStream.flush()
                    outputStream.close()
                    Glide.with(this@AddActivity)
                        //.load(image[0])
                        .load(image)
                        .skipMemoryCache(true)
                        .diskCacheStrategy(DiskCacheStrategy.NONE)
                        .into(imageView)
                    cameraKitView.visibility = View.GONE
                    imageView.visibility = View.VISIBLE
                    fabCapture.visibility = View.GONE
                    fabDone.visibility = View.VISIBLE
                    fabRepeat.visibility = View.VISIBLE
                } catch (e: IOException) {
                    e.printStackTrace()
                }
            }
        }

        //Recapturing
        fabRepeat.setOnClickListener {
            imageView.visibility = View.GONE
            cameraKitView.visibility = View.VISIBLE
            fabRepeat.visibility = View.GONE
            fabDone.visibility = View.GONE
            fabCapture.visibility = View.VISIBLE
        }

        //Done, let's display it in the imgViewAddActivity
        fabDone.setOnClickListener {

            pix = image

            if (image!= null) Glide.with(this@AddActivity)
                .load(image)
                .skipMemoryCache(true)
                .diskCacheStrategy(DiskCacheStrategy.NONE)
                .into(pixImageView)
            screen.dismiss()
        }

        //To let us start new capturing
        screen.setOnDismissListener(DialogInterface.OnDismissListener {
            cameraKitView.stopVideo()
            cameraKitView.onStop()
        })

        //Display the dialog
        screen.show()
    }

    private fun checkPermissions() {
        //Permissions we need
        val permissions = arrayOf(
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.CAMERA
        )
        //Permissions that we will ask for
        val needed_permissions: ArrayList<String> = ArrayList()

        //Check which is not granted yet
        for (permission in permissions) {
            if (ContextCompat.checkSelfPermission(this@AddActivity, permission) !=
                PackageManager.PERMISSION_GRANTED
            ) {
                needed_permissions.add(permission)
            }
        }

        //Ask for multiple not granted permissions
        if (needed_permissions.isNotEmpty()) ActivityCompat.requestPermissions(
            this@AddActivity,
            needed_permissions.toArray(arrayOfNulls<String>(needed_permissions.size)),
            ALL_PERMISSIONS
        ) else openCameraDialog()
    }

    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        //called when user presses ALLOW or DENY from Permission Request Popup
        if (requestCode == ALL_PERMISSIONS) {
            if (grantResults.isNotEmpty() &&
                (grantResults[0]
                        + grantResults[1]
                        + grantResults[2]) == PackageManager.PERMISSION_GRANTED
            ) {
                //This method will open the popup (dialog) cameraview
                openCameraDialog()
            } else {
                Toast.makeText(
                    this@AddActivity,
                    "All permissions need to be granted",
                    Toast.LENGTH_LONG
                )
                    .show()
            }
        }
    }


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

        relativeLocation =
            "${Environment.getExternalStorageDirectory()}/MyFolder"

        pixImageView.setOnClickListener { checkPermissions() }

                val realm = Realm.getDefaultInstance()

                realm.executeTransaction {


                    val list = RealmObject()

                    list.pix = pix.toString()
                }

                finish()
            }
    }
}

现在，总体来说，该应用可以在minifyEnabled = false上正常运行。我可以添加和删除记录并将其显示在RecyclerView上，但仍可以拍照。即使我设置了minifyEnabled = true，该应用程序仍然可以运行。除了当我点击pixImageView时。这是唯一因minifyEnabled = true而崩溃的事情。应该注意的是，启动checkPermissions()时，它与Realm无关，它只需要征求许可并启动默认摄像机，而是得到以下信息：

    2020-07-19 09:30:24.207 2486-2486/? E/Zygote: isWhitelistProcess - Process is Whitelisted
2020-07-19 09:30:24.208 2486-2486/? E/Zygote: accessInfo : 1
2020-07-19 09:30:24.925 2486-2486/com.example.app E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.app, PID: 2486
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.app/com.example.app.MainActivity}: androidx.fragment.app.Fragment$e: Unable to instantiate fragment com.example.app.l: calling Fragment constructor caused an exception
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3092)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3235)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1926)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:6990)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445)
     Caused by: androidx.fragment.app.Fragment$e: Unable to instantiate fragment com.example.app.l: calling Fragment constructor caused an exception
        at androidx.fragment.app.Fragment.S(:620)
        at androidx.fragment.app.g.b(:57)
        at androidx.fragment.app.n$e.a(:448)
        at androidx.fragment.app.v.<init>(:86)
        at androidx.fragment.app.n.c1(:2614)
        at androidx.fragment.app.i.w(:198)
        at androidx.fragment.app.e.onCreate(:237)
        at androidx.appcompat.app.d.onCreate(:106)
        at com.example.app.MainActivity.onCreate(:14)
        at android.app.Activity.performCreate(Activity.java:7326)
        at android.app.Activity.performCreate(Activity.java:7317)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3072)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3235) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1926) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:6990) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445) 
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
        at androidx.fragment.app.Fragment.S(:602)
        at androidx.fragment.app.g.b(:57) 
        at androidx.fragment.app.n$e.a(:448) 
        at androidx.fragment.app.v.<init>(:86) 
        at androidx.fragment.app.n.c1(:2614) 
        at androidx.fragment.app.i.w(:198) 
        at androidx.fragment.app.e.onCreate(:237) 
        at androidx.appcompat.app.d.onCreate(:106) 
        at com.example.app.MainActivity.onCreate(:14) 
        at android.app.Activity.performCreate(Activity.java:7326) 
        at android.app.Activity.performCreate(Activity.java:7317) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3072) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3235) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1926) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:6990) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445) 
     Caused by: java.lang.IllegalStateException: Call `Realm.init(Context)` before calling this method.
        at io.realm.o.S(:402)
        at com.example.app.l.<init>(:23)
        at java.lang.reflect.Constructor.newInstance0(Native Method) 
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343) 
        at androidx.fragment.app.Fragment.S(:602) 
        at androidx.fragment.app.g.b(:57) 
        at androidx.fragment.app.n$e.a(:448) 
        at androidx.fragment.app.v.<init>(:86) 
        at androidx.fragment.app.n.c1(:2614) 
        at androidx.fragment.app.i.w(:198) 
        at androidx.fragment.app.e.onCreate(:237) 
        at androidx.appcompat.app.d.onCreate(:106) 
        at com.example.app.MainActivity.onCreate(:14) 
        at android.app.Activity.performCreate(Activity.java:7326) 
        at android.app.Activity.performCreate(Activity.java:7317) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3072) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3235) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1926) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:6990) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445) 

我已经尝试在所有类上使用@Keep批注，但无济于事。