desc:获取可用存储空间大小

app/src/main/java/com/yinuo/safetywatcher/xls/utils/PathUtils.kt

@@ -41,4 +41,12 @@ object PathUtils {
     fun getNowTimeFormat(dateToStringLongPattern: String): String {
         return SimpleDateFormat(dateToStringLongPattern, Locale.ROOT).format(Date());
     }
+
+    fun getAvailableInternalMemorySize():Long{
+        val storageDirectory = getExternalStorageDirectory()
+        val statFs = StatFs(storageDirectory)
+        val blockSizeLong = statFs.blockSizeLong
+        val availableBlocksLong = statFs.availableBlocksLong
+        return blockSizeLong * availableBlocksLong
+    }
 }