pref: 输入法高度持久化

app/src/main/java/com/huanchengfly/tieba/post/DataStore.kt

@@ -3,8 +3,13 @@ package com.huanchengfly.tieba.post
 import android.annotation.SuppressLint
 import android.content.Context
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.MutableState
 import androidx.compose.runtime.State
 import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
 import androidx.datastore.core.DataMigration
 import androidx.datastore.core.DataStore
 import androidx.datastore.preferences.SharedPreferencesMigration
@@ -48,6 +53,25 @@ private val dataStoreInstance by lazy(mode = LazyThreadSafetyMode.SYNCHRONIZED)
 
 val Context.dataStore: DataStore<Preferences> by dataStoreInstance
 
+@Composable
+fun <T> rememberPreferenceAsMutableState(
+    key: Preferences.Key<T>,
+    defaultValue: T
+): MutableState<T> {
+    val dataStore = LocalContext.current.dataStore
+    val state = remember { mutableStateOf(defaultValue) }
+
+    LaunchedEffect(Unit) {
+        dataStore.data.map { it[key] ?: defaultValue }.collect { state.value = it }
+    }
+
+    LaunchedEffect(state.value) {
+        dataStore.edit { it[key] = state.value }
+    }
+
+    return state
+}
+
 @SuppressLint("FlowOperatorInvokedInComposition")
 @Composable
 fun <T> DataStore<Preferences>.collectPreferenceAsState(

app/src/main/java/com/huanchengfly/tieba/post/ui/page/reply/ReplyPage.kt

@@ -101,6 +101,7 @@ import com.huanchengfly.tieba.post.utils.Emoticon
 import com.huanchengfly.tieba.post.utils.EmoticonManager
 import com.huanchengfly.tieba.post.utils.PickMediasRequest
 import com.huanchengfly.tieba.post.utils.StringUtil
+import com.huanchengfly.tieba.post.utils.appPreferences
 import com.ramcosta.composedestinations.annotation.Destination
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
 import com.ramcosta.composedestinations.spec.DestinationStyle
@@ -308,11 +309,19 @@ fun ReplyPage(
             .collect { value = it }
     }
     val imeAnimationEnd by remember { derivedStateOf { imeCurrentHeight == imeAnimationTargetHeight } }
-    val imeVisibleHeight by produceState(initialValue = 0, imeAnimationTargetInset, density) {
+    val imeVisibleHeight by produceState(
+        initialValue = remember { context.appPreferences.imeHeight },
+        imeAnimationTargetInset,
+        density
+    ) {
         snapshotFlow { imeAnimationTargetInset.getBottom(density) }
             .filter { it > 0 }
             .distinctUntilChanged()
-            .collect { value = it }
+            .collect {
+                Log.i("ReplyPage", "imeVisibleHeight: $it")
+                context.appPreferences.imeHeight = it
+                value = it
+            }
     }
 
     val textMeasurer = rememberTextMeasurer()

app/src/main/java/com/huanchengfly/tieba/post/utils/AppPreferencesUtils.kt

@@ -118,6 +118,8 @@ open class AppPreferencesUtils private constructor(ctx: Context) {
         defaultValue = "0"
     )
 
+    var imeHeight by DataStoreDelegates.int(defaultValue = 800)
+
     var listItemsBackgroundIntermixed by DataStoreDelegates.boolean(defaultValue = true)
 
     var listSingle by DataStoreDelegates.boolean(defaultValue = false)