feat: 软件启动时请求设置书籍保存位置 (#2366)

app/src/main/assets/storageHelp.md

@@ -0,0 +1,2 @@
+* 由于安卓的存储访问限制，阅读需要设置**公共目录下的子目录**来实现书籍拷贝、下载
+* 如不设置，可能影响本地书籍、webDav书籍的正常阅读

app/src/main/java/io/legado/app/ui/association/FileAssociationActivity.kt

@@ -121,7 +121,7 @@ class FileAssociationActivity :
             val treeUriStr = AppConfig.defaultBookTreeUri
             if (treeUriStr.isNullOrEmpty()) {
                 localBookTreeSelect.launch {
-                    title = "选择保存书籍的文件夹"
+                    title = getString(R.string.select_book_folder)
                     mode = HandleFileContract.DIR_SYS
                 }
             } else {

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

@@ -31,6 +31,7 @@ import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.theme.elevation
 import io.legado.app.lib.theme.primaryColor
 import io.legado.app.service.BaseReadAloudService
+import io.legado.app.ui.document.HandleFileContract
 import io.legado.app.ui.main.bookshelf.BaseBookshelfFragment
 import io.legado.app.ui.main.bookshelf.style1.BookshelfFragment1
 import io.legado.app.ui.main.bookshelf.style2.BookshelfFragment2
@@ -70,6 +71,12 @@ class MainActivity : VMBaseActivity<ActivityMainBinding, MainViewModel>(),
     private var bottomMenuCount = 4
     private val realPositions = arrayOf(idBookshelf, idExplore, idRss, idMy)
 
+    private val localBookTreeSelect = registerForActivityResult(HandleFileContract()) {
+        it.uri?.let { treeUri ->
+            AppConfig.defaultBookTreeUri = treeUri.toString()
+        }
+    }
+
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         upBottomMenu()
         binding.run {
@@ -87,6 +94,8 @@ class MainActivity : VMBaseActivity<ActivityMainBinding, MainViewModel>(),
         super.onPostCreate(savedInstanceState)
         upVersion()
         privacyPolicy()
+        //请求设置书籍保存位置
+        setBookStorage()
         //自动更新书籍
         val isAutoRefreshedBook = savedInstanceState?.getBoolean("isAutoRefreshedBook") ?: false
         if (AppConfig.autoRefreshBook && !isAutoRefreshedBook) {
@@ -181,6 +190,25 @@ class MainActivity : VMBaseActivity<ActivityMainBinding, MainViewModel>(),
         }
     }
 
+    /**
+     * 设置书籍保存位置
+     */
+    private fun setBookStorage() {
+        //测试书籍保存位置是否设置
+        if (!AppConfig.defaultBookTreeUri.isNullOrBlank()) return
+        //测试读写??
+        val storageHelp = String(assets.open("storageHelp.md").readBytes())
+        alert("设置书籍保存位置", storageHelp) {
+            yesButton {
+              localBookTreeSelect.launch {
+                  title = getString(R.string.select_book_folder)
+                  mode = HandleFileContract.DIR_SYS
+              }
+            }
+            noButton()
+        }
+    }
+
     override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
         event?.let {
             when (keyCode) {