diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..cad7657
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "cmake.configureOnOpen": false
+}
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..036e9d5
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# Base16384 for Android
+> 本项目的核心基于[Base16384](https://github.com/fumiama/base16384)，这是使用`JNI`适配的安卓版本，支持深色模式主题，使用`Material Design`
+# 功能
+- 进行文本的编码/译码
+- 从系统文件管理器选择任意二进制文件进行编码/译码
+# 用途
+- 文本加密通信
+- 汉字文本压缩
+- 二进制文件的文本化传输
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index 472a02c..fa41d7b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,8 @@ android {
         applicationId "top.fumiama.base16384"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 7
-        versionName '1.3'
+        versionCode 8
+        versionName '1.3.1'
         resConfigs "zh", "en"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/java/top/fumiama/base16384/MainActivity.kt b/app/src/main/java/top/fumiama/base16384/MainActivity.kt
index 57abd56..bbca55c 100644
--- a/app/src/main/java/top/fumiama/base16384/MainActivity.kt
+++ b/app/src/main/java/top/fumiama/base16384/MainActivity.kt
@@ -26,13 +26,29 @@ import java.io.FileInputStream
 import java.nio.charset.Charset
 
 class MainActivity : Activity() {
+    var forceDecode = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         val cm = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
         val pCharsets = PropertiesTools(File(filesDir, "charsets.prop"))
+
         sv.viewTreeObserver.addOnGlobalLayoutListener { setTitleVisibility() }
         fab.setOnClickListener { pickFile() }
+        fab.setOnLongClickListener {
+            AlertDialog.Builder(this)
+                    .setTitle(R.string.alert)
+                    .setMessage(R.string.force_decode)
+                    .setIcon(R.mipmap.ic_launcher)
+                    .setPositiveButton(android.R.string.ok){ _, _ ->
+                        forceDecode = true
+                        pickFile()
+                    }
+                    .setNegativeButton(android.R.string.cancel){ _, _ ->}
+                    .show()
+            false
+        }
         ben.setOnClickListener { clickButton(true, cm, pCharsets) }
         bde.setOnClickListener { clickButton(false, cm, pCharsets) }
         ben.setOnLongClickListener {
@@ -67,7 +83,8 @@ class MainActivity : Activity() {
         val br = inputFile.inputStream()
         br.read(bbf)
         br.close()
-        val isDecode = bbf[0] == (-2).toByte() && bbf[1] == (-1).toByte()
+        val isDecode = (bbf[0] == (-2).toByte() && bbf[1] == (-1).toByte()) || forceDecode
+        if (forceDecode) forceDecode = false
 
         val re = if(isDecode) decode(inputFile.absolutePath, outputFile.absolutePath)
         else encode(inputFile.absolutePath, outputFile.absolutePath)
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 38799f1..9f551a6 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -17,4 +17,6 @@
     <string name="info_content">作者：源文雨。感谢咲桜动漫社成员的支持。</string>
     <string name="copied">已复制</string>
     <string name="select_charset">选择字符集</string>
+    <string name="alert">提示</string>
+    <string name="force_decode">执行强制解码？</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d0526f9..3f7185b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -16,4 +16,6 @@
     <string name="info_content">Author: Fumiama, with precious supports from the members in Sakura Anime Club.</string>
     <string name="copied">Copied Text</string>
     <string name="select_charset">Select Charset</string>
+    <string name="alert">Alert</string>
+    <string name="force_decode">Force Decode?</string>
 </resources>
\ No newline at end of file