Added ability to backup settings, databases & images

app/src/main/java/code/name/monkey/retromusic/activities/backup/BackupActivity.kt

@@ -0,0 +1,85 @@
+package code.name.monkey.retromusic.activities.backup
+
+import android.os.Bundle
+import android.widget.Toast
+import androidx.activity.viewModels
+import androidx.core.view.isVisible
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.activities.base.AbsThemeActivity
+import code.name.monkey.retromusic.adapter.backup.BackupAdapter
+import code.name.monkey.retromusic.databinding.ActivityBackupBinding
+import code.name.monkey.retromusic.helper.BackupHelper
+import com.google.android.material.shape.MaterialShapeDrawable
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+class BackupActivity : AbsThemeActivity() {
+
+    private val backupViewModel by viewModels<BackupViewModel>()
+    private var backupAdapter: BackupAdapter? = null
+
+    lateinit var binding: ActivityBackupBinding
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityBackupBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+        binding.appBarLayout.statusBarForeground =
+            MaterialShapeDrawable.createWithElevationOverlay(this)
+        binding.toolbar.setNavigationIcon(R.drawable.ic_keyboard_backspace_black)
+        initAdapter()
+        setupRecyclerview()
+        backupViewModel.backupsLiveData.observe(this) {
+            if (it.isNotEmpty())
+                backupAdapter?.swapDataset(it)
+            else
+                backupAdapter?.swapDataset(listOf())
+        }
+        backupViewModel.loadBackups()
+        setupButtons()
+    }
+
+    private fun setupButtons() {
+        binding.createBackup.setOnClickListener {
+            lifecycleScope.launch {
+                BackupHelper.createBackup(this@BackupActivity)
+                backupViewModel.loadBackups()
+                withContext(Dispatchers.Main) {
+                    Toast.makeText(
+                        this@BackupActivity,
+                        "Backup Completed Successfully",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            }
+        }
+    }
+
+    private fun initAdapter() {
+        backupAdapter = BackupAdapter(this@BackupActivity, ArrayList())
+        backupAdapter?.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
+            override fun onChanged() {
+                super.onChanged()
+                checkIsEmpty()
+            }
+        })
+    }
+
+    private fun checkIsEmpty() {
+        binding.emptyText.setText(R.string.no_backups_found)
+        (backupAdapter!!.itemCount == 0).run {
+            binding.empty.isVisible = this
+            binding.backupTitle.isVisible = this
+        }
+    }
+
+    fun setupRecyclerview() {
+        binding.backupRecyclerview.apply {
+            layoutManager = LinearLayoutManager(context)
+            adapter = backupAdapter
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/activities/backup/BackupViewModel.kt

@@ -0,0 +1,23 @@
+package code.name.monkey.retromusic.activities.backup
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import code.name.monkey.retromusic.helper.BackupHelper
+import kotlinx.coroutines.launch
+import java.io.File
+
+class BackupViewModel : ViewModel() {
+    private val backupsMutableLiveData = MutableLiveData<List<File>>()
+    val backupsLiveData = backupsMutableLiveData
+
+    fun loadBackups() {
+        viewModelScope.launch {
+            File(BackupHelper.backupRootPath).listFiles { _, name ->
+                return@listFiles name.endsWith(BackupHelper.backupExt)
+            }?.toList()?.let {
+                backupsMutableLiveData.value = it
+            }
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/activities/backup/RestoreActivity.kt

@@ -0,0 +1,12 @@
+package code.name.monkey.retromusic.activities.backup
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import code.name.monkey.retromusic.R
+
+class RestoreActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_restore)
+    }
+}