feat: 优化代码

app/src/main/java/io/legado/app/constant/PreferKey.kt

@@ -34,4 +34,5 @@ object PreferKey {
     const val chineseConverterType = "chineseConverterType"
     const val launcherIcon = "launcherIcon"
     const val selectText = "selectText"
+    const val lastBackup = "lastBackup"
 }

app/src/main/java/io/legado/app/help/storage/Backup.kt

@@ -4,15 +4,15 @@ import android.content.Context
 import android.net.Uri
 import androidx.documentfile.provider.DocumentFile
 import io.legado.app.App
+import io.legado.app.constant.PreferKey
 import io.legado.app.help.ReadBookConfig
-import io.legado.app.utils.DocumentUtils
-import io.legado.app.utils.FileUtils
-import io.legado.app.utils.GSON
-import io.legado.app.utils.isContentPath
+import io.legado.app.help.coroutine.Coroutine
+import io.legado.app.utils.*
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.withContext
 import org.jetbrains.anko.defaultSharedPreferences
 import java.io.File
+import java.util.concurrent.TimeUnit
 
 
 object Backup {
@@ -34,7 +34,23 @@ object Backup {
         )
     }
 
+    fun autoBack(context: Context) {
+        val lastBackup = context.getPrefLong(PreferKey.lastBackup)
+        if (lastBackup + TimeUnit.DAYS.toMillis(1) < System.currentTimeMillis()) {
+            return
+        }
+        Coroutine.async {
+            val backupPath = context.getPrefString(PreferKey.backupPath)
+            if (backupPath.isNullOrEmpty()) {
+                backup(context)
+            } else {
+                backup(context, backupPath)
+            }
+        }
+    }
+
     suspend fun backup(context: Context, path: String = legadoPath) {
+        context.putPrefLong(PreferKey.lastBackup, System.currentTimeMillis())
         withContext(IO) {
             writeListToJson(App.db.bookDao().all, "bookshelf.json", backupPath)
             writeListToJson(App.db.bookGroupDao().all, "bookGroup.json", backupPath)

app/src/main/java/io/legado/app/ui/main/MainActivity.kt

@@ -15,7 +15,6 @@ import io.legado.app.base.VMBaseActivity
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
 import io.legado.app.help.AppConfig
-import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.help.storage.Backup
 import io.legado.app.lib.theme.ATH
 import io.legado.app.service.BaseReadAloudService
@@ -131,22 +130,11 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
 
     override fun finish() {
         if (!BuildConfig.DEBUG) {
-            backup()
+            Backup.autoBack(this)
         }
         super.finish()
     }
 
-    private fun backup() {
-        Coroutine.async {
-            val backupPath = getPrefString(PreferKey.backupPath)
-            if (backupPath.isNullOrEmpty()) {
-                Backup.backup(this@MainActivity)
-            } else {
-                Backup.backup(this@MainActivity, backupPath)
-            }
-        }
-    }
-
     override fun onDestroy() {
         super.onDestroy()
         ReadAloud.stop(this)