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Code Issues 7 Pull Requests Releases 17 Wiki Activity

add export/import of my list

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fixes #39
This commit is contained in:
Jannik
2021-05-26 19:46:46 +02:00
parent 68d462eeee
commit 7ce67f57cd
5 changed files with 99 additions and 9 deletions
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47
app/src/main/java/org/mosad/teapod/ui/activity/main/fragments/AccountFragment.kt
View File

@ -1,5 +1,6 @@
package org.mosad.teapod.ui.activity.main.fragments
import android.app.Activity
import android.content.Intent
import android.net.Uri
import android.os.Bundle
@ -7,6 +8,7 @@ import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import androidx.core.view.isVisible
import androidx.fragment.app.Fragment
import com.afollestad.materialdialogs.MaterialDialog
@ -14,20 +16,24 @@ import com.afollestad.materialdialogs.list.listItemsSingleChoice
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import org.mosad.teapod.BuildConfig
import org.mosad.teapod.ui.activity.main.MainActivity
import org.mosad.teapod.R
import org.mosad.teapod.databinding.FragmentAccountBinding
import org.mosad.teapod.parser.AoDParser
import org.mosad.teapod.preferences.EncryptedPreferences
import org.mosad.teapod.preferences.Preferences
import org.mosad.teapod.ui.activity.main.MainActivity
import org.mosad.teapod.ui.components.LoginDialog
import org.mosad.teapod.util.DataTypes.Theme
import org.mosad.teapod.util.StorageController
import org.mosad.teapod.util.showFragment
class AccountFragment : Fragment() {
private lateinit var binding: FragmentAccountBinding
private val exportFileCode = 1111
private val importFileCode = 1122
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
binding = FragmentAccountBinding.inflate(inflater, container, false)
return binding.root
@ -60,6 +66,30 @@ class AccountFragment : Fragment() {
initActions()
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
// return if the result was not ok
if (resultCode != Activity.RESULT_OK) {
Log.e(javaClass.name, "Error while computing result. Result code is: $resultCode")
return
}
when(requestCode) {
exportFileCode -> data?.data?.also { uri ->
StorageController.exportMyList(requireContext(), uri)
}
importFileCode -> data?.data?.also { uri ->
val success = StorageController.importMyList(requireContext(), uri)
if (success == 0) {
Toast.makeText(
context, getString(R.string.import_data_success),
Toast.LENGTH_SHORT
).show()
}
}
}
}
private fun initActions() {
binding.linearAccountLogin.setOnClickListener {
showLoginDialog(true)
@ -86,11 +116,20 @@ class AccountFragment : Fragment() {
}
binding.linearExportData.setOnClickListener {
println("TODO")
val i = Intent(Intent.ACTION_CREATE_DOCUMENT).apply {
addCategory(Intent.CATEGORY_OPENABLE)
type = "text/json"
putExtra(Intent.EXTRA_TITLE, "my-list.json")
}
startActivityForResult(i, exportFileCode)
}
binding.linearImportData.setOnClickListener {
println("TODO")
val i = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
addCategory(Intent.CATEGORY_OPENABLE)
type = "*/*"
}
startActivityForResult(i, importFileCode)
}
}
@ -120,7 +159,7 @@ class AccountFragment : Fragment() {
when(index) {
0 -> Preferences.saveTheme(context, Theme.LIGHT)
1 -> Preferences.saveTheme(context, Theme.DARK)
else -> Preferences.saveTheme(context, Theme.LIGHT)
else -> Preferences.saveTheme(context, Theme.DARK)
}
(activity as MainActivity).restart()

51
app/src/main/java/org/mosad/teapod/util/StorageController.kt
View File

@ -1,12 +1,18 @@
package org.mosad.teapod.util
import android.content.Context
import android.net.Uri
import android.util.Log
import android.widget.Toast
import com.google.gson.Gson
import com.google.gson.JsonParser
import kotlinx.coroutines.*
import org.mosad.teapod.R
import java.io.File
import java.io.FileReader
import java.io.FileWriter
import java.lang.Exception
import java.net.URI
/**
* This controller contains the logic for permanently saved data.
@ -19,6 +25,10 @@ object StorageController {
val myList = ArrayList<Int>() // a list of saved mediaIds
fun load(context: Context) {
loadMyList(context)
}
fun loadMyList(context: Context) {
val file = File(context.filesDir, fileNameMyList)
if (!file.exists()) runBlocking { saveMyList(context).join() }
@ -30,7 +40,6 @@ object StorageController {
myList.clear()
Log.e(javaClass.name, "Parsing of My-List failed.")
}
}
fun saveMyList(context: Context): Job {
@ -41,4 +50,44 @@ object StorageController {
}
}
fun exportMyList(context: Context, uri: Uri) {
try {
context.contentResolver.openFileDescriptor(uri, "w")?.use {
FileWriter(it.fileDescriptor).use { writer ->
writer.write(Gson().toJson(myList.distinct()))
}
}
} catch (ex: Exception) {
Log.e(javaClass.name, "Exporting my list failed.", ex)
}
}
/**
* import my list from a (previously exported) json file
* @param context the current context
* @param uri the uri of the selected file
* @return 0 if import was successfull, else 1
*/
fun importMyList(context: Context, uri: Uri): Int {
try {
val text = context.contentResolver.openFileDescriptor(uri, "r")?.use {
FileReader(it.fileDescriptor).use { reader ->
reader.readText()
}
}
myList.clear()
myList.addAll(JsonParser.parseString(text).asJsonArray.map { it.asInt }.distinct())
// after the list has been imported also save it
saveMyList(context)
} catch (ex: Exception) {
myList.clear()
Log.e(javaClass.name, "Importing my list failed.", ex)
return 1
}
return 0
}
}