add search and sort

.idea/compiler.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="17" />
+    <bytecodeTargetLevel target="21" />
   </component>
 </project>

.idea/gradle.xml

@@ -4,8 +4,9 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
+        <option name="gradleJvm" value="#JAVA_HOME" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

.idea/misc.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/build.gradle.kts

@@ -69,6 +69,7 @@ dependencies {
     implementation(libs.ui.graphics)
     implementation(libs.ui.tooling.preview)
     implementation(libs.material3)
+    implementation(libs.androidx.datastore.preferences)
     testImplementation(libs.junit)
     androidTestImplementation(libs.ext.junit)
     androidTestImplementation(libs.espresso.core)

app/src/main/AndroidManifest.xml

@@ -2,75 +2,76 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-  <application
-      android:allowBackup="true"
-      android:dataExtractionRules="@xml/data_extraction_rules"
-      android:fullBackupContent="@xml/backup_rules"
-      android:icon="@drawable/ic_launcher_foreground"
-      android:label="@string/app_name"
-      android:roundIcon="@drawable/ic_launcher_foreground"
-      android:supportsRtl="true"
-      android:theme="@style/Theme.MyApplication"
-      tools:targetApi="31">
-    <activity
-        android:name=".compose.SearchActivity"
-        android:exported="false"
-        android:label="@string/title_activity_search"
-        android:theme="@style/Theme.MyApplication" />
-    <activity
-        android:name=".compose.RequirePermissionActivity"
-        android:exported="true"
-        android:theme="@style/Theme.MyApplication">
-      <intent-filter>
-        <action android:name="android.intent.action.MAIN" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission
+        android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
-        <category android:name="android.intent.category.LAUNCHER" />
-      </intent-filter>
-    </activity>
-    <activity
-        android:name=".compose.ViewFileActivity"
-        android:exported="false" />
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@drawable/ic_launcher_foreground"
+        android:label="@string/app_name"
+        android:roundIcon="@drawable/ic_launcher_foreground"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.MyApplication"
+        tools:targetApi="31">
+        <activity
+            android:name=".compose.SettingActivity"
+            android:exported="false"
+            android:label="@string/title_activity_setting"
+            android:theme="@style/Theme.MyApplication" />
+        <activity
+            android:name=".compose.SearchActivity"
+            android:exported="false"
+            android:label="@string/title_activity_search"
+            android:theme="@style/Theme.MyApplication" />
+        <activity
+            android:name=".compose.RequirePermissionActivity"
+            android:exported="true"
+            android:theme="@style/Theme.MyApplication">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
 
-    <activity
-        android:name=".main_page"
-        android:exported="false" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".compose.ViewFileActivity"
+            android:exported="false" />
+        <activity
+            android:name=".main_page"
+            android:exported="false" />
+        <activity
+            android:name=".store_page"
+            android:exported="false" />
+        <activity
+            android:name=".document_page"
+            android:exported="false" />
+        <activity
+            android:name=".picture_page"
+            android:exported="false" />
+        <activity
+            android:name=".video_page"
+            android:exported="false" />
+        <activity
+            android:name=".music_page"
+            android:exported="false" />
 
-    <activity
-        android:name=".store_page"
-        android:exported="false" />
-
-    <activity
-        android:name=".document_page"
-        android:exported="false" />
-    <activity
-        android:name=".picture_page"
-        android:exported="false" />
-    <activity
-        android:name=".video_page"
-        android:exported="false" />
-    <activity
-        android:name=".music_page"
-        android:exported="false" />
-
-    <provider
-        android:name="androidx.core.content.FileProvider"
-        android:authorities="com.example.myapplication.provider"
-        android:exported="false"
-        android:grantUriPermissions="true">
-      <meta-data
-          android:name="android.support.FILE_PROVIDER_PATHS"
-          android:resource="@xml/provider_paths" />
-    </provider>
-  </application>
-
-  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-  <uses-permission
-      android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
-      tools:ignore="ScopedStorage" />
-  <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
-  <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
-  <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
-
-  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="com.example.myapplication.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths" />
+        </provider>
+    </application>
 
 </manifest>

app/src/main/java/com/example/myapplication/SettingStorage.kt

@@ -0,0 +1,37 @@
+package com.example.myapplication
+
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.booleanPreferencesKey
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.preferencesDataStore
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+
+val Context.settingStore: DataStore<Preferences> by preferencesDataStore(name = "app_settings")
+
+class SettingStorage(private val context: Context) {
+  val showExtension = booleanPreferencesKey("show_extension")
+
+
+  fun <T> get(key: Preferences.Key<T>): T? =
+    runBlocking {
+      context.settingStore.data
+        .map { value ->
+          value[key]
+        }
+        .first()
+    }
+
+  fun <T> set(key: Preferences.Key<T>, value: T) =
+    CoroutineScope(Dispatchers.Default).launch {
+      context.settingStore.edit {
+        it[key] = value
+      }
+    }
+}

app/src/main/java/com/example/myapplication/compose/SearchActivity.kt

@@ -4,6 +4,13 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.Surface
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import com.example.myapplication.R
+import com.example.myapplication.compose.ui.SearchFileColumn
 import com.example.myapplication.fileSystem.byTypeFileLister.DocumentLister
 import com.example.myapplication.fileSystem.byTypeFileLister.ImageLister
 import com.example.myapplication.fileSystem.byTypeFileLister.MusicLister
@@ -20,10 +27,22 @@ class SearchActivity : ComponentActivity() {
       "document" -> DocumentLister.regex
       else -> null
     }
+    val searchFileColumn = SearchFileColumn(this,when (type) {
+      "music" -> getString(R.string.music)
+      "image" -> getString(R.string.picture)
+      "video" -> getString(R.string.video)
+      "document" -> getString(R.string.document)
+      else -> ""
+    },searchTypeRegex)
 
     enableEdgeToEdge()
     setContent {
-
+      Surface(
+        modifier = Modifier
+          .fillMaxSize()
+          .background(Color(getColor(R.color.WhiteSmoke)))
+      )
+      { searchFileColumn.Draw() }
     }
   }
-}
+}

app/src/main/java/com/example/myapplication/compose/SettingActivity.kt

@@ -0,0 +1,17 @@
+package com.example.myapplication.compose
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+
+class SettingActivity : ComponentActivity() {
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    enableEdgeToEdge()
+    setContent {
+
+    }
+  }
+}
+

app/src/main/java/com/example/myapplication/compose/ui/FileColumn.kt

@@ -63,6 +63,9 @@ import com.example.myapplication.fileSystem.WrappedFile.Type
 import com.example.myapplication.main_page
 import com.example.myapplication.utils.AlertHelper
 import com.example.myapplication.utils.ClipHelper
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import org.apache.commons.io.IOUtils
 import java.io.File
 import java.io.FileNotFoundException
@@ -74,17 +77,26 @@ class FileColumn(val context: Context) {
   fun Draw(startFolder: String) {
     var path by remember { mutableStateOf(startFolder) }
     var shouldUpdate by remember { mutableStateOf(false) }
+
+    // 检查当前在的目录，有问题就不渲染
     val cwd = File(path)
     if (!cwd.isDirectory) {
       return
     }
-    var isOkay by remember { mutableStateOf(false) }
 
-    LaunchedEffect(path, shouldUpdate) {
+    var isOkay by remember { mutableStateOf(false) }
+    var sortByTime by remember { mutableStateOf(true) }
+
+    LaunchedEffect(path, shouldUpdate, sortByTime) {
       isOkay = false
       fileList.clear()
-      cwd.listFiles()?.forEach { f ->
-        fileList.add(WrappedFile(f))
+      val wfList = cwd.listFiles()?.map { WrappedFile(it) }
+      if (wfList!=null) {
+        if (sortByTime) {
+          fileList.addAll(wfList.sortedBy { it.lastModifiedTime })
+        } else {
+          fileList.addAll(wfList.sortedBy { it.size })
+        }
       }
       isOkay = true
     }
@@ -120,11 +132,42 @@ class FileColumn(val context: Context) {
         Text(
           text = path,
           fontSize = 24.sp,
-          modifier = Modifier.padding(start = 16.dp),
+          modifier = Modifier.padding(start = 10.dp)
+            .fillMaxWidth(0.75f),
           maxLines = 1,
           overflow = TextOverflow.Ellipsis
         )
 
+        Spacer(modifier = Modifier.weight(1f))
+
+        IconButton(
+          onClick = {
+            sortByTime = !sortByTime
+            CoroutineScope(Dispatchers.Main).launch {
+              Toast.makeText(
+                context, context.getString(
+                  if (sortByTime) {
+                    R.string.sort_by_time
+                  } else {
+                    R.string.sort_by_size
+                  }
+                ), Toast.LENGTH_SHORT
+              ).show()
+            }
+          },
+        ) {
+          Image(
+            imageVector = ImageVector.vectorResource(
+              if (sortByTime) {
+                R.drawable.baseline_access_time_24
+              } else {
+                R.drawable.baseline_storage_24
+              }
+            ), "sortMethod"
+          )
+        }
+
+
       }
       if (!isOkay) {
         Column(

app/src/main/java/com/example/myapplication/compose/ui/SearchFileColumn.kt

@@ -0,0 +1,358 @@
+package com.example.myapplication.compose.ui
+
+import android.content.Context
+import android.content.Intent
+import android.widget.Toast
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.material3.TextFieldDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.RectangleShape
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.res.vectorResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.core.content.FileProvider
+import com.example.myapplication.R
+import com.example.myapplication.fileSystem.CutHelper
+import com.example.myapplication.fileSystem.WrappedFile
+import com.example.myapplication.fileSystem.WrappedFile.Type
+import com.example.myapplication.fileSystem.searchFile
+import com.example.myapplication.main_page
+import com.example.myapplication.utils.AlertHelper
+import com.example.myapplication.utils.ClipHelper
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import java.io.File
+
+class SearchFileColumn(
+  val context: Context,
+  private val searchTypeName: String,
+  private val searchRegex: Regex?
+) {
+  private val fileList = mutableStateListOf<WrappedFile>()
+  private val searchText = mutableStateOf("")
+
+  @Composable
+  fun Draw() {
+    var list by remember { mutableStateOf<List<String>>(emptyList()) }
+    var isOkay by remember { mutableStateOf(false) }
+    var sortByTime by remember { mutableStateOf(true) }
+
+    LaunchedEffect(isOkay, list,sortByTime) {
+      isOkay = false
+      fileList.clear()
+      val wfList = list.map { WrappedFile(File(it)) }
+      if (sortByTime) {
+        fileList.addAll(wfList.sortedBy { it.lastModifiedTime })
+      } else {
+        fileList.addAll(wfList.sortedBy { it.size })
+      }
+      isOkay = true
+    }
+
+    Column(
+      modifier = Modifier
+        .fillMaxSize()
+        .statusBarsPadding()
+        .navigationBarsPadding()
+        .background(Color(context.getColor(R.color.WhiteSmoke)))
+    ) {
+      Row(
+        modifier = Modifier
+          .fillMaxWidth()
+          .padding(horizontal = 10.dp),
+        verticalAlignment = Alignment.CenterVertically
+      ) {
+        IconButton(
+          onClick = {
+            val intent = Intent(
+              context,
+              main_page::class.java
+            )
+            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP)
+            context.startActivity(intent)
+          }
+        ) {
+          Image(
+            imageVector = ImageVector.vectorResource(R.drawable.ic_left_arrow), "back"
+          )
+        }
+
+        Text(
+          text = context.getString(R.string.search_result, searchTypeName),
+          fontSize = 28.sp,
+          modifier = Modifier
+            .padding(start = 10.dp)
+            .padding(vertical = 5.dp),
+          maxLines = 1,
+          overflow = TextOverflow.Ellipsis
+        )
+
+        Spacer(modifier = Modifier.weight(1f))
+
+        IconButton(
+          onClick = {
+            sortByTime = !sortByTime
+            CoroutineScope(Dispatchers.Main).launch {
+              Toast.makeText(
+                context, context.getString(
+                  if (sortByTime) {
+                    R.string.sort_by_time
+                  } else {
+                    R.string.sort_by_size
+                  }
+                ), Toast.LENGTH_SHORT
+              ).show()
+            }
+          },
+        ) {
+          Image(
+            imageVector = ImageVector.vectorResource(
+              if (sortByTime) {
+                R.drawable.baseline_access_time_24
+              } else {
+                R.drawable.baseline_storage_24
+              }
+            ), "sortMethod"
+          )
+        }
+
+      }
+      if (!isOkay) {
+        Column(
+          modifier = Modifier.fillMaxSize(),
+          horizontalAlignment = Alignment.CenterHorizontally,
+          verticalArrangement = Arrangement.Center
+        ) {
+          Text(
+            text = context.getString(R.string.loading),
+            fontSize = 34.sp
+          )
+        }
+      } else {
+        DrawColumns(fileList,
+          searchText = searchText.value,
+          onSearch = { name, searchWhat ->
+            searchText.value = searchWhat
+            searchFile(name, searchRegex) {
+              list = it
+              CoroutineScope(Dispatchers.Main).launch {
+                if (list.isEmpty()) {
+                  Toast.makeText(
+                    context,
+                    context.getString(R.string.search_no_result), Toast.LENGTH_SHORT
+                  ).show()
+                } else {
+                  Toast.makeText(
+                    context,
+                    context.getString(R.string.search_some_result, list.size), Toast.LENGTH_SHORT
+                  ).show()
+                }
+                isOkay = !isOkay
+              }
+            }
+          }
+        ) {
+          val file = File(it)
+          if (file.isFile) {
+            val uri = FileProvider.getUriForFile(
+              context,
+              context.packageName + ".provider",
+              file
+            )
+            val intent = Intent(Intent.ACTION_VIEW)
+            intent.setDataAndType(uri, WrappedFile(file).mime)
+            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            context.startActivity(intent)
+          }
+        }
+      }
+    }
+  }
+
+  @Composable
+  private fun DrawColumns(
+    fileList: List<WrappedFile>,
+    update: (() -> Unit)? = null,
+    searchText: String = "",
+    onSearch: ((String, String) -> Unit)? = null,
+    onItemClick: ((String) -> Unit)? = null
+  ) {
+    LazyColumn(
+      modifier = Modifier.padding(vertical = 5.dp)
+    ) {
+      // 最顶上那个
+      item {
+        Row(
+          modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 3.dp),
+          verticalAlignment = Alignment.CenterVertically,
+        ) {
+          var searchInput by remember { mutableStateOf(searchText) }
+
+          TextField(
+            value = searchInput,
+            maxLines = 1,
+            onValueChange = { searchInput = it },
+            modifier = Modifier
+              .padding(horizontal = 15.dp, vertical = 10.dp)
+              .fillParentMaxWidth(0.9f),
+            colors = TextFieldDefaults.colors(
+              focusedContainerColor = Color(0xFFFFFAFA),
+              unfocusedContainerColor = Color.White,
+              focusedIndicatorColor = Color(0xFF03A9F4),
+              unfocusedIndicatorColor = Color.Transparent
+            ),
+            textStyle = TextStyle(fontSize = 18.sp),
+            trailingIcon = {
+              Image(
+                ImageVector.vectorResource(R.drawable.ic_search),
+                context.getString(R.string.search),
+                modifier = Modifier
+                  .clickable {
+                    if (searchInput.isNotEmpty()) {
+                      if (searchInput == "." || searchInput == "..") {
+                        Toast
+                          .makeText(
+                            context,
+                            context.getString(R.string.error_search_input_illegal),
+                            Toast.LENGTH_SHORT
+                          )
+                          .show()
+                      }
+                      onSearch?.invoke(searchInput, searchInput)
+                    } else {
+                      Toast
+                        .makeText(
+                          context,
+                          context.getString(R.string.error_need_search_input), Toast.LENGTH_SHORT
+                        )
+                        .show()
+                    }
+                  }
+              )
+            }
+          )
+        }
+      }
+
+      // 下面的内容
+      items(fileList) { file ->
+        FileSingleView(
+          file,
+          update = update,
+          onItemClick = onItemClick
+        )
+      }
+    }
+  }
+
+  @Composable
+  private fun FileSingleView(
+    file: WrappedFile,
+    update: (() -> Unit)? = null,
+    onItemClick: ((String) -> Unit)? = null
+  ) {
+
+    Row(
+      modifier = Modifier
+        .fillMaxWidth()
+        .border(
+          width = Dp.Hairline,
+          color = Color.Gray,
+          shape = RectangleShape
+        )
+        .padding(vertical = 3.dp)
+        .clickable {
+          onItemClick?.invoke(file.path)
+        },
+      verticalAlignment = Alignment.CenterVertically,
+    ) {
+      Image(
+        ImageVector.vectorResource(
+          when (file.mime.split('/').first()) {
+            "dir" -> R.drawable.type_directory
+            "image" -> R.drawable.type_image
+            "video" -> R.drawable.type_video
+            "audio" -> R.drawable.type_audio
+            else -> R.drawable.type_file
+          }
+        ), file.mime,
+        modifier = Modifier
+          .padding(horizontal = 8.dp)
+      )
+      Column(
+        modifier = Modifier
+          .padding(horizontal = 15.dp)
+          .fillMaxWidth(0.8f)
+      ) {
+        Text(
+          text = file.name,
+          fontSize = 24.sp,
+          maxLines = 1,
+          overflow = TextOverflow.Ellipsis
+        )
+        Text(
+          text = file.getModifiedTimeString(context),
+          fontSize = 15.sp,
+          color = Color.Gray,
+          maxLines = 1
+        )
+      }
+
+      Spacer(Modifier.weight(1f))
+
+      IconButton(
+        onClick = {
+          if (file.type == Type.FILE) { // 普通文件
+            AlertHelper.showOnlyInfoNewAlert(context,
+              onInfo = {
+                AlertHelper.showFileInfoAlert(context, file.path)
+              }
+            )
+          }
+        },
+        modifier = Modifier.padding(horizontal = 10.dp)
+      ) {
+        Image(
+          ImageVector.vectorResource(R.drawable.outline_info_24), "info"
+        )
+      }
+    }
+
+  }
+}

app/src/main/java/com/example/myapplication/compose/ui/Setting.kt

@@ -0,0 +1,68 @@
+package com.example.myapplication.compose.ui
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.unit.dp
+
+class Setting(
+  private val rowModifier: Modifier = Modifier.fillMaxWidth(),
+  private val nameModifier: Modifier = Modifier,
+  private val nameTextStyle: TextStyle = TextStyle.Default,
+  private val descriptionModifier: Modifier = Modifier,
+  private val descriptionTextStyle: TextStyle = TextStyle.Default,
+  private val switchModifier: Modifier = Modifier
+) {
+
+  @Composable
+  fun BooleanSetting(
+    name: String,
+    initialState: Boolean = true,
+    description: String? = null,
+    onCheckedChange: ((Boolean) -> Unit)? = null
+  ) {
+    var checkState by remember { mutableStateOf(initialState) }
+
+    Row(
+      verticalAlignment = Alignment.CenterVertically,
+      modifier = rowModifier
+    ) {
+      Column(
+        modifier = Modifier.fillMaxWidth(0.8f)
+      ) {
+        Text(
+          text = name,
+          modifier = nameModifier,
+          style = nameTextStyle
+        )
+        Spacer(modifier = Modifier.size(5.dp))
+        Text(
+          text = description ?: "",
+          modifier = descriptionModifier,
+          style = descriptionTextStyle
+        )
+      }
+      Spacer(modifier = Modifier.weight(1f))
+      Switch(
+        checked = checkState,
+        onCheckedChange = {
+          checkState = it
+          onCheckedChange?.invoke(it)
+        },
+        modifier = switchModifier
+      )
+    }
+  }
+}

app/src/main/java/com/example/myapplication/document_page.kt

@@ -222,7 +222,7 @@ class document_page : AppCompatActivity() {
                 loadingTextView.visibility = View.GONE
                 Toast.makeText(
                   this@document_page,
-                  "已选择按时间排序",
+                  getString(R.string.sort_by_time),
                   Toast.LENGTH_SHORT
                 ).show()
               }
@@ -245,7 +245,7 @@ class document_page : AppCompatActivity() {
                 loadingTextView.visibility = View.GONE
                 Toast.makeText(
                   this@document_page,
-                  "已选择按大小排序",
+                  getString(R.string.sort_by_size),
                   Toast.LENGTH_SHORT
                 ).show()
               }

app/src/main/java/com/example/myapplication/fileSystem/FileSearcher.kt

@@ -0,0 +1,45 @@
+package com.example.myapplication.fileSystem
+
+import android.content.Context
+import android.os.Environment
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
+import java.io.File
+
+fun searchFile(name: String,typeRegex: Regex? = null, onFinished: (List<String>) -> Unit){
+  CoroutineScope(Dispatchers.IO).launch {
+    val resultList = searchDir(name,Environment.getExternalStorageDirectory().path)
+    if (typeRegex == null){
+      onFinished.invoke(resultList)
+    }else{
+      val finalResult = resultList.filter { it.contains(typeRegex) }
+      onFinished.invoke(finalResult)
+    }
+  }
+}
+
+suspend fun searchDir(name: String, directory: String): List<String> {
+  val list = mutableListOf<String>()
+  val dir = File(directory)
+  if (!dir.isDirectory || dir.name.startsWith('.')){
+    return emptyList()
+  }
+
+  val inside = dir.listFiles()
+  if (inside == null || inside.isEmpty()){
+    return emptyList()
+  }
+
+  inside.forEach {
+    if (it.isDirectory){
+        list.addAll(coroutineScope{ searchDir(name, it.path) })
+    }else if (it.isFile){
+      if (it.name.contains(name) && !it.name.startsWith('.') ){
+        list.add(it.path)
+      }
+    }
+  }
+  return list
+}

app/src/main/java/com/example/myapplication/main_page.java

@@ -10,6 +10,8 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
+
+import com.example.myapplication.compose.SearchActivity;
 import com.example.myapplication.compose.ViewFileActivity;
 import com.example.myapplication.fileSystem.DeleteHelper;
 import java.io.File;
@@ -41,6 +43,7 @@ public class main_page extends AppCompatActivity {
     findViewById(R.id.MainPageRecordingButton).setOnClickListener(buttonClickerHandler);
     findViewById(R.id.MainPageDCIMButton).setOnClickListener(buttonClickerHandler);
     findViewById(R.id.MainPagePicturesButton).setOnClickListener(buttonClickerHandler);
+    findViewById(R.id.MainPageSearchButton).setOnClickListener(buttonClickerHandler);
   }
 
   @Override protected void onDestroy() {
@@ -124,6 +127,10 @@ public class main_page extends AppCompatActivity {
         intent.putExtras(bundle);
         startActivity(intent);
       }
+      if (view.getId() == R.id.MainPageSearchButton) {
+        Intent intent = new Intent(context, SearchActivity.class);
+        startActivity(intent);
+      }
     }
   }
 }

app/src/main/java/com/example/myapplication/utils/AlertHelper.kt

@@ -125,6 +125,26 @@ class AlertHelper {
         .show()
     }
 
+    fun showOnlyInfoNewAlert(
+      context: Context,
+      onInfo: () -> Unit,
+    ) {
+      val builder = Builder(context)
+      builder.setTitle(context.getString(R.string.select_action))
+        .setItems(
+          arrayOf<CharSequence>(
+            context.getString(R.string.action_info)
+          )
+        ) { _: DialogInterface?, which: Int ->
+          when (which) {
+            1 -> onInfo()
+          }
+        }
+        .setNegativeButton(context.getString(R.string.action_cancel))
+        { dialog: DialogInterface, which: Int -> dialog.dismiss() }
+        .show()
+    }
+
     fun showDeleteAlert(context: Context, file: String, onConfirm: (() -> Unit)?) {
       val builder = Builder(context)
       builder.setTitle(context.getString(R.string.confirm_to_delete))

app/src/main/res/drawable/baseline_access_time_24.xml

@@ -0,0 +1,7 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="40dp" android:tint="#1A1B3F" android:viewportHeight="24" android:viewportWidth="24" android:width="40dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8z"/>
+      
+    <path android:fillColor="@android:color/white" android:pathData="M12.5,7H11v6l5.25,3.15 0.75,-1.23 -4.5,-2.67z"/>
+    
+</vector>

app/src/main/res/drawable/ic_search.xml

@@ -1,7 +1,12 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="40dp" android:tint="#000000" android:viewportHeight="23" android:viewportWidth="23" android:width="40dp">
-      
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="40dp"
+    android:height="40dp"
+    android:tint="#000000"
+    android:viewportWidth="23"
+    android:viewportHeight="23">
+
     <path
         android:fillColor="@android:color/white"
-        android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
-    
+        android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z" />
+
 </vector>

app/src/main/res/layout/main_page.xml

@@ -36,7 +36,7 @@
         android:scrollbars="none"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/searchDocument"
+        app:layout_constraintTop_toBottomOf="@+id/MainPageSearchButton"
         >
 
       <LinearLayout
@@ -329,19 +329,21 @@
     </ScrollView>
 
 
-    <SearchView
-        android:id="@+id/searchDocument"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_marginTop="15dp"
-        android:background="@drawable/search_border"
-        android:iconifiedByDefault="false"
-        android:queryHint="搜索文件"
-        android:textColor="@color/black"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/MainPageTitleRow"
-        />
+  <Button
+      android:id="@+id/MainPageSearchButton"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:backgroundTint="@color/white"
+      android:drawableLeft="@drawable/ic_search"
+      android:gravity="center"
+      android:layout_marginHorizontal="60dp"
+      android:text="@string/search_file"
+      android:textColor="@color/black"
+      android:textSize="20sp"
+      app:layout_constraintStart_toStartOf="parent"
+      app:layout_constraintEnd_toEndOf="parent"
+      app:layout_constraintTop_toBottomOf="@+id/MainPageTitleRow"
+      />
+
   </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -1,42 +1,42 @@
 <resources>
-  <string name="app_name">文件管理器</string>
-  <string name="hello">文件管理器</string>
-  <string name="search">浏览</string>
-  <string name="edit">编辑</string>
-  <string name="picture">图片</string>
-  <string name="video">视频</string>
-  <string name="music">音乐</string>
-  <string name="document">文件</string>
-  <string name="app">其他</string>
-  <string name="location">位置</string>
-  <string name="store">内部存储</string>
-  <string name="delete">最近删除</string>
-  <string name="download">下载与接收</string>
-  <string name="source">来源</string>
-  <string name="qq">QQ</string>
-  <string name="wechat">微信</string>
-  <string name="internet">浏览器</string>
-  <string name="radio">录音机</string>
-  <string name="installpackage">安装包</string>
-  <string name="Camera">Camera</string>
-  <string name="Screenshots">屏幕截图</string>
-  <!-- Strings used for fragments for navigation -->
-  <string name="first_fragment_label">First Fragment</string>
-  <string name="second_fragment_label">Second Fragment</string>
-  <string name="next">Next</string>
-  <string name="previous">Previous</string>
-  <string name="Delete">删除</string>
-  <string name="copy">复制</string>
-  <string name="cut">剪切</string>
-  <string name="paste">粘贴</string>
-  <string name="tiktok">抖音</string>
-  <string name="alipay">支付宝</string>
-  <string name="taobao">淘宝</string>
-  <string name="little_red_book">小红书</string>
-  <string name="unload">卸载</string>
-  <string name="store_package">压缩包</string>
-  <string name="phone_information">通话与信息</string>
-  <string name="lorem_ipsum">
+    <string name="app_name">文件管理器</string>
+    <string name="hello">文件管理器</string>
+    <string name="search">浏览</string>
+    <string name="edit">编辑</string>
+    <string name="picture">图片</string>
+    <string name="video">视频</string>
+    <string name="music">音乐</string>
+    <string name="document">文件</string>
+    <string name="app">其他</string>
+    <string name="location">位置</string>
+    <string name="store">内部存储</string>
+    <string name="delete">最近删除</string>
+    <string name="download">下载与接收</string>
+    <string name="source">来源</string>
+    <string name="qq">QQ</string>
+    <string name="wechat">微信</string>
+    <string name="internet">浏览器</string>
+    <string name="radio">录音机</string>
+    <string name="installpackage">安装包</string>
+    <string name="Camera">Camera</string>
+    <string name="Screenshots">屏幕截图</string>
+    <!-- Strings used for fragments for navigation -->
+    <string name="first_fragment_label">First Fragment</string>
+    <string name="second_fragment_label">Second Fragment</string>
+    <string name="next">Next</string>
+    <string name="previous">Previous</string>
+    <string name="Delete">删除</string>
+    <string name="copy">复制</string>
+    <string name="cut">剪切</string>
+    <string name="paste">粘贴</string>
+    <string name="tiktok">抖音</string>
+    <string name="alipay">支付宝</string>
+    <string name="taobao">淘宝</string>
+    <string name="little_red_book">小红书</string>
+    <string name="unload">卸载</string>
+    <string name="store_package">压缩包</string>
+    <string name="phone_information">通话与信息</string>
+    <string name="lorem_ipsum">
         Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam in scelerisque sem. Mauris
         volutpat, dolor id interdum ullamcorper, risus dolor egestas lectus, sit amet mattis purus
         dui nec risus. Maecenas non sodales nisi, vel dictum dolor. Class aptent taciti sociosqu ad
@@ -72,60 +72,69 @@
         libero vel nunc consequat, quis tincidunt nisl eleifend. Cras bibendum enim a justo luctus
         vestibulum. Fusce dictum libero quis erat maximus, vitae volutpat diam dignissim.
     </string>
-  <string name="title_activity_require_permission">RequirePermissionActivity</string>
+    <string name="title_activity_require_permission">RequirePermissionActivity</string>
 
-  <string name="require_permission_readwrite">需要读取/写入存储权限以继续</string>
-  <string name="require_manage_storage">需要管理存储权限以继续</string>
-  <string name="give_permission">授权</string>
+    <string name="require_permission_readwrite">需要读取/写入存储权限以继续</string>
+    <string name="require_manage_storage">需要管理存储权限以继续</string>
+    <string name="give_permission">授权</string>
 
-  <string name="used_storage_percentage">%d%%</string>
-  <string name="used_storage">已使用\n%s / %s</string>
+    <string name="used_storage_percentage">%d%%</string>
+    <string name="used_storage">已使用\n%s / %s</string>
 
-  <string name="loading">加载中</string>
+    <string name="loading">加载中</string>
 
-  <!-- Actions -->
-  <string name="select_action">选择操作</string>
-  <string name="action_copy">复制</string>
-  <string name="action_paste">粘贴</string>
-  <string name="action_delete">删除</string>
-  <string name="action_cut">剪切</string>
-  <string name="action_info">信息</string>
-  <string name="action_new_file">新建文件</string>
-  <string name="action_new_folder">新建文件夹</string>
-  <string name="action_cancel">取消</string>
+    <!-- Actions -->
+    <string name="select_action">选择操作</string>
+    <string name="action_copy">复制</string>
+    <string name="action_paste">粘贴</string>
+    <string name="action_delete">删除</string>
+    <string name="action_cut">剪切</string>
+    <string name="action_info">信息</string>
+    <string name="action_new_file">新建文件</string>
+    <string name="action_new_folder">新建文件夹</string>
+    <string name="action_cancel">取消</string>
 
-  <!-- Confirmations -->
-  <string name="confirm">确认</string>
-  <string name="okay">好的</string>
-  <string name="cancel">取消</string>
-  <string name="confirm_to_delete">确认删除</string>
-  <string name="confirm_to_delete_file">确认删除文件: %s</string>
+    <!-- Confirmations -->
+    <string name="confirm">确认</string>
+    <string name="okay">好的</string>
+    <string name="cancel">取消</string>
+    <string name="confirm_to_delete">确认删除</string>
+    <string name="confirm_to_delete_file">确认删除文件: %s</string>
 
-  <string name="file_info">文件信息</string>
-  <string name="file_info_text">
+    <string name="file_info">文件信息</string>
+    <string name="file_info_text">
 文件名：%s\n
 路径：%s\n
 大小：%s\n
 最后修改时间：%s
   </string>
 
-  <string name="advanced">查看什么</string>
-  <string name="settings">软件设置</string>
-  <string name="all_files">全部文件</string>
-  <string name="storage_info">内部存储信息</string>
+    <string name="advanced">查看什么</string>
+    <string name="settings">软件设置</string>
+    <string name="all_files">全部文件</string>
+    <string name="storage_info">内部存储信息</string>
 
-  <string name="camera">相机</string>
-  <string name="pictures">公用图片</string>
-  <string name="documents">公用文档</string>
-  <string name="prev_folder">上一级目录</string>
+    <string name="camera">相机</string>
+    <string name="pictures">公用图片</string>
+    <string name="documents">公用文档</string>
+    <string name="prev_folder">上一级目录</string>
 
-  <string name="input_name">请输入名称</string>
-  <string name="create_directory">将在 %s 创建文件夹</string>
-  <string name="create_file">将在 %s 创建文件</string>
+    <string name="input_name">请输入名称</string>
+    <string name="create_directory">将在 %s 创建文件夹</string>
+    <string name="create_file">将在 %s 创建文件</string>
 
-  <string name="error_nothing_to_paste">未找到可粘贴的内容</string>
-  <string name="error_need_input_name">请输入名称</string>
-  <string name="error_already_exist">已存在此文件（夹）</string>
-  <string name="title_activity_view_file">ViewFileActivity</string>
-  <string name="title_activity_search">SearchActivity</string>
+    <string name="error_nothing_to_paste">未找到可粘贴的内容</string>
+    <string name="error_need_input_name">请输入名称</string>
+    <string name="error_already_exist">已存在此文件（夹）</string>
+    <string name="title_activity_view_file">ViewFileActivity</string>
+    <string name="title_activity_search">SearchActivity</string>
+    <string name="search_result">搜索%s结果</string>
+    <string name="error_need_search_input">请输入要搜索的内容</string>
+    <string name="error_search_input_illegal">输入的搜索内容不合法</string>
+    <string name="search_file">搜索文件</string>
+    <string name="search_no_result">未找到任何结果</string>
+    <string name="search_some_result">找到%d个结果</string>
+    <string name="sort_by_size">已选择按大小排序</string>
+    <string name="sort_by_time">已选择按时间排序</string>
+    <string name="title_activity_setting">SettingActivity</string>
 </resources>

app/src/main/res/values/themes.xml

@@ -1,9 +1,9 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
-  <!-- Base application theme. -->
-  <style name="Base.Theme.MyApplication" parent="Theme.Material3.DayNight.NoActionBar">
-    <!-- Customize your light theme here. -->
-    <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
-  </style>
+    <!-- Base application theme. -->
+    <style name="Base.Theme.MyApplication" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
 
-  <style name="Theme.MyApplication" parent="Base.Theme.MyApplication" />
+    <style name="Theme.MyApplication" parent="Base.Theme.MyApplication" />
 </resources>

gradle/libs.versions.toml

@@ -15,6 +15,7 @@ lifecycleRuntimeKtx = "2.8.6"
 activityCompose = "1.9.2"
 composeBom = "2024.09.03"
 commonsIO = "2.17.0"
+datastorePreferences = "1.1.1"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -38,6 +39,7 @@ ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
 ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
 material3 = { group = "androidx.compose.material3", name = "material3" }
 commons-io = { group = "commons-io", name = "commons-io", version.ref = "commonsIO"  }
+androidx-datastore-preferences = { module = "androidx.datastore:datastore-preferences", version.ref = "datastorePreferences" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }