定时保存

app/src/main/java/com/zywl/test1229/database/AppDatabase.kt

@@ -1,28 +1,10 @@
 package com.zywl.test1229.database
 
-import android.content.Context
-import androidx.room.Dao
 import androidx.room.Database
-import androidx.room.Room
 import androidx.room.RoomDatabase
 import com.zywl.test1229.bean.StakeInfo
 
 @Database(entities = [StakeInfo::class], version = 1, exportSchema = false)
 abstract class AppDatabase : RoomDatabase() {
     abstract fun dataDao():DataDao
-    companion object{
-        @Volatile
-        private var INSTANCE: AppDatabase? = null
-        fun getDatabase(context: Context): AppDatabase {
-            return INSTANCE ?: synchronized(this) {
-                val instance = Room.databaseBuilder(
-                    context.applicationContext,
-                    AppDatabase::class.java,
-                    "app_database.db"
-                ).build()
-                INSTANCE = instance
-                instance
-            }
-        }
-    }
 }

app/src/main/java/com/zywl/test1229/database/DataDao.kt

@@ -1,19 +1,21 @@
 package com.zywl.test1229.database
 
-import androidx.lifecycle.LiveData
 import androidx.room.Dao
-import androidx.room.Insert
 import androidx.room.Query
+import androidx.room.Upsert
 import com.zywl.test1229.bean.StakeInfo
 
 @Dao
 interface DataDao {
-    @Insert
-    suspend fun insert(data:StakeInfo)
-    @Insert
-    suspend fun insertAll(data:List<StakeInfo>)
+    @Upsert
+    suspend fun insert(data: StakeInfo)
+
+    @Upsert
+    suspend fun insertAll(data: List<StakeInfo>)
+
     @Query("SELECT * FROM info_table")
-    fun getAllStakeInfo(): LiveData<List<StakeInfo>>
+    suspend fun getAllStakeInfo(): List<StakeInfo>
+
     @Query("DELETE FROM info_table")
     suspend fun deleteAll()
 }

app/src/main/java/com/zywl/test1229/ui/home/HomeViewModel.kt

@@ -4,7 +4,6 @@ import android.content.Context
 import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.zywl.test1229.bean.Constant
 import com.zywl.test1229.bean.StakeInfo
 import com.zywl.test1229.data.PermissionState
 import com.zywl.test1229.database.DataDao
@@ -24,7 +23,6 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import java.io.File
 import javax.inject.Inject
 
 @HiltViewModel
@@ -72,13 +70,12 @@ class HomeViewModel @Inject constructor(
             _state.update { it.copy(items = it.items + stakeInfoList) }
         }
     }
-    private fun onUpdateItems(dataDao: DataDao){
+
+    private fun onUpdateItems(dataDao: DataDao) {
         viewModelScope.launch(Dispatchers.IO) {
-            val stakeInfoList = dataDao.getAllStakeInfo().value
-            stakeInfoList?.let {
-                Log.d(TAG, "onFileSelected: $stakeInfoList")
-                _state.update { it.copy(items = stakeInfoList) }
-            }
+            val stakeInfoList = dataDao.getAllStakeInfo()
+            Log.d(TAG, "onFileSelected: $stakeInfoList")
+            _state.update { it.copy(items = stakeInfoList) }
         }
     }