优化

app/src/main/java/io/legado/app/service/DownloadService.kt

@@ -12,6 +12,7 @@ import io.legado.app.R
 import io.legado.app.base.BaseService
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.IntentAction
+import io.legado.app.utils.IntentType
 import io.legado.app.utils.openFileUri
 import io.legado.app.utils.servicePendingIntent
 import io.legado.app.utils.toastOnUi
@@ -57,7 +58,7 @@ class DownloadService : BaseService() {
             IntentAction.play -> {
                 val id = intent.getLongExtra("downloadId", 0)
                 if (completeDownloads.contains(id)) {
-                    openDownload(id)
+                    openDownload(id, downloads[id]?.second)
                 } else {
                     toastOnUi("未完成,下载的文件夹Download")
                 }
@@ -113,7 +114,7 @@ class DownloadService : BaseService() {
             completeDownloads.add(downloadId)
             val fileName = downloads[downloadId]?.second
             if (fileName?.endsWith(".apk") == true) {
-                openDownload(downloadId)
+                openDownload(downloadId, fileName)
             } else {
                 toastOnUi("$fileName ${getString(R.string.download_success)}")
             }
@@ -168,9 +169,10 @@ class DownloadService : BaseService() {
         }
     }
 
-    private fun openDownload(downloadId: Long) {
+    private fun openDownload(downloadId: Long, fileName: String?) {
         downloadManager.getUriForDownloadedFile(downloadId)?.let { uri ->
-            openFileUri(uri)
+            val type = IntentType.from(fileName)
+            openFileUri(uri, type)
         }
     }
 

app/src/main/java/io/legado/app/utils/ContextExtensions.kt

@@ -293,7 +293,7 @@ fun Context.openUrl(uri: Uri) {
     }
 }
 
-fun Context.openFileUri(uri: Uri) {
+fun Context.openFileUri(uri: Uri, type: String?) {
     val intent = Intent()
     intent.action = Intent.ACTION_VIEW
     intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
@@ -301,7 +301,7 @@ fun Context.openFileUri(uri: Uri) {
         //7.0版本以上
         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
     }
-    intent.setDataAndType(uri, IntentType.from(uri))
+    intent.setDataAndType(uri, type)
     try {
         startActivity(intent)
     } catch (e: Exception) {

app/src/main/java/io/legado/app/utils/IntentType.kt

@@ -6,24 +6,24 @@ import java.io.File
 object IntentType {
 
     @JvmStatic
-    fun from(uri: Uri): String {
+    fun from(uri: Uri): String? {
         return from(uri.toString())
     }
 
     @JvmStatic
-    fun from(file: File): String {
+    fun from(file: File): String? {
         return from(file.absolutePath)
     }
 
     @JvmStatic
-    fun from(path: String): String {
-        return when (path.substringAfterLast(".").lowercase()) {
+    fun from(path: String?): String? {
+        return when (path?.substringAfterLast(".")?.lowercase()) {
             "apk" -> "application/vnd.android.package-archive"
             "m4a", "mp3", "mid", "xmf", "ogg", "wav" -> "video/*"
             "3gp", "mp4" -> "audio/*"
             "jpg", "gif", "png", "jpeg", "bmp" -> "image/*"
             "txt", "json" -> "text/plain"
-            else -> "*/*"
+            else -> null
         }
     }