diff --git a/app/build.gradle b/app/build.gradle
index 0c6f0cc..0420389 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -17,14 +17,14 @@ android {
         applicationId "io.neoterm"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 14
-        versionName "1.2.0-rc3"
+        versionCode 15
+        versionName "1.2.0-rc4"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        resConfigs "zh"
+        resConfigs "zh-rCN", "zh-rTW"
         externalNativeBuild {
             cmake {
                 cppFlags "-std=c++11"
-                abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+                abiFilters 'x86', 'x86_64', 'arm64-v8a'
             }
         }
         sourceSets {
diff --git a/app/src/main/java/io/neoterm/App.kt b/app/src/main/java/io/neoterm/App.kt
index 465fe5c..7aa7095 100644
--- a/app/src/main/java/io/neoterm/App.kt
+++ b/app/src/main/java/io/neoterm/App.kt
@@ -2,7 +2,7 @@ package io.neoterm
 
 import android.app.Application
 import io.neoterm.customize.color.ColorSchemeManager
-import io.neoterm.customize.completion.AutoCompletionManager
+import io.neoterm.customize.completion.CompletionProviderManager
 import io.neoterm.customize.font.FontManager
 import io.neoterm.customize.script.UserScriptManager
 import io.neoterm.preference.NeoPreference
@@ -22,7 +22,7 @@ class App : Application() {
         ColorSchemeManager.init(this)
         FontManager.init(this)
         UserScriptManager.init(this)
-        AutoCompletionManager.init(this)
+        CompletionProviderManager.init(this)
     }
 
     companion object {
diff --git a/app/src/main/java/io/neoterm/customize/completion/AutoCompletionManager.kt b/app/src/main/java/io/neoterm/customize/completion/CompletionProviderManager.kt
similarity index 89%
rename from app/src/main/java/io/neoterm/customize/completion/AutoCompletionManager.kt
rename to app/src/main/java/io/neoterm/customize/completion/CompletionProviderManager.kt
index fcd2e9e..0718bb6 100644
--- a/app/src/main/java/io/neoterm/customize/completion/AutoCompletionManager.kt
+++ b/app/src/main/java/io/neoterm/customize/completion/CompletionProviderManager.kt
@@ -7,7 +7,7 @@ import io.neoterm.frontend.completion.CompletionManager
 /**
  * @author kiva
  */
-object AutoCompletionManager {
+object CompletionProviderManager {
     fun init(context: Context) {
         CompletionManager.registerProvider(PathProvider())
     }
diff --git a/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt b/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
index 9ba8c05..e93a4bb 100644
--- a/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermCompleteListener.kt
@@ -1,12 +1,9 @@
 package io.neoterm.frontend.client
 
-import android.util.Log
 import android.view.KeyEvent
-import io.neoterm.BuildConfig
-import io.neoterm.customize.completion.widget.CandidatePopupWindow
+import io.neoterm.frontend.completion.widget.CandidatePopupWindow
 import io.neoterm.frontend.completion.CompletionManager
 import io.neoterm.frontend.completion.listener.OnAutoCompleteListener
-import io.neoterm.frontend.completion.model.CompletionCandidate
 import io.neoterm.frontend.completion.model.CompletionResult
 import io.neoterm.view.TerminalView
 import java.util.*
@@ -17,20 +14,18 @@ import java.util.*
 class TermCompleteListener(var terminalView: TerminalView?) : OnAutoCompleteListener {
 
     private val inputStack = Stack<Char>()
-    private val popupWindow = CandidatePopupWindow(terminalView!!.context)
+    private var popupWindow: CandidatePopupWindow? = null
 
     override fun onKeyCode(keyCode: Int, keyMod: Int) {
         when (keyCode) {
             KeyEvent.KEYCODE_DEL -> {
-                Log.e("NeoTerm-AC", "BackSpace")
                 popChar()
                 activateAutoCompletion()
             }
 
             KeyEvent.KEYCODE_ENTER -> {
-                Log.e("NeoTerm-AC", "Clear Chars")
                 clearChars()
-                popupWindow.dismiss()
+                popupWindow?.dismiss()
             }
         }
     }
@@ -44,10 +39,22 @@ class TermCompleteListener(var terminalView: TerminalView?) : OnAutoCompleteList
     }
 
     override fun onCleanUp() {
-        popupWindow.cleanup()
+        popupWindow?.dismiss()
+        popupWindow?.cleanup()
+        popupWindow = null
         terminalView = null
     }
 
+    override fun onFinishCompletion(): Boolean {
+        val popWindow = popupWindow ?: return false
+
+        if (popWindow.isShowing()) {
+            popWindow.dismiss()
+            return true
+        }
+        return false
+    }
+
     private fun activateAutoCompletion() {
         val text = getCurrentEditingText()
         if (text.isEmpty()) {
@@ -62,20 +69,24 @@ class TermCompleteListener(var terminalView: TerminalView?) : OnAutoCompleteList
             result.markScore(0)
             return
         }
-
-        if (BuildConfig.DEBUG) {
-            val candidates = result.candidates
-            Log.e("NeoTerm-AC", "Completing for $text")
-            candidates.forEach {
-                Log.e("NeoTerm-AC", "    Candidate: ${it.completeString}")
-            }
-        }
         showAutoCompleteCandidates(result)
     }
 
     private fun showAutoCompleteCandidates(result: CompletionResult) {
-        popupWindow.candidates = result.candidates
-        popupWindow.show(terminalView!!)
+        val termView = terminalView
+        var popWindow = popupWindow
+
+        if (termView == null) {
+            return
+        }
+
+        if (popWindow == null) {
+            popWindow = CandidatePopupWindow(termView.context)
+            this.popupWindow = popWindow
+        }
+
+        popWindow.candidates = result.candidates
+        popWindow.show(termView)
     }
 
     private fun getCurrentEditingText(): String {
diff --git a/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt b/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
index 234cf9a..0ff2ba2 100644
--- a/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermUiPresenter.kt
@@ -9,4 +9,6 @@ interface TermUiPresenter {
     fun requirePaste()
     fun requireUpdateTitle(title: String?)
     fun requireOnSessionFinished()
+    fun requireHideIme()
+    fun requireFinishAutoCompletion(): Boolean
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt b/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
index 764014e..d9b667b 100644
--- a/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
+++ b/app/src/main/java/io/neoterm/frontend/client/TermViewClient.kt
@@ -2,6 +2,7 @@ package io.neoterm.frontend.client
 
 import android.content.Context
 import android.media.AudioManager
+import android.util.Log
 import android.view.InputDevice
 import android.view.KeyEvent
 import android.view.MotionEvent
@@ -62,6 +63,12 @@ class TermViewClient(val context: Context) : TerminalViewClient {
                 }
                 return false
             }
+            KeyEvent.KEYCODE_BACK -> {
+                if (e?.action == KeyEvent.ACTION_DOWN) {
+                    return termUI?.requireFinishAutoCompletion() ?: false
+                }
+                return false
+            }
         }
         if (e != null && e.isCtrlPressed && e.isAltPressed) {
             // Get the unmodified code point:
diff --git a/app/src/main/java/io/neoterm/frontend/completion/listener/OnAutoCompleteListener.kt b/app/src/main/java/io/neoterm/frontend/completion/listener/OnAutoCompleteListener.kt
index 575edc2..e002e4a 100755
--- a/app/src/main/java/io/neoterm/frontend/completion/listener/OnAutoCompleteListener.kt
+++ b/app/src/main/java/io/neoterm/frontend/completion/listener/OnAutoCompleteListener.kt
@@ -11,4 +11,6 @@ interface OnAutoCompleteListener {
     fun onKeyCode(keyCode: Int, keyMod: Int)
 
     fun onCleanUp()
+
+    fun onFinishCompletion(): Boolean
 }
diff --git a/app/src/main/java/io/neoterm/customize/completion/widget/CandidatePopupWindow.kt b/app/src/main/java/io/neoterm/frontend/completion/widget/CandidatePopupWindow.kt
similarity index 86%
rename from app/src/main/java/io/neoterm/customize/completion/widget/CandidatePopupWindow.kt
rename to app/src/main/java/io/neoterm/frontend/completion/widget/CandidatePopupWindow.kt
index 705a708..3af5eda 100644
--- a/app/src/main/java/io/neoterm/customize/completion/widget/CandidatePopupWindow.kt
+++ b/app/src/main/java/io/neoterm/frontend/completion/widget/CandidatePopupWindow.kt
@@ -1,18 +1,17 @@
-package io.neoterm.customize.completion.widget
+package io.neoterm.frontend.completion.widget
 
 import android.content.Context
+import android.util.Log
 import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.BaseAdapter
-import android.widget.ListView
-import android.widget.PopupWindow
-import android.widget.TextView
+import android.widget.*
 import io.neoterm.R
 import io.neoterm.backend.TerminalColors
 import io.neoterm.customize.color.ColorSchemeManager
 import io.neoterm.frontend.completion.model.CompletionCandidate
+import io.neoterm.view.MaxHeightView
 import io.neoterm.view.TerminalView
 
 /**
@@ -30,8 +29,17 @@ class CandidatePopupWindow(val context: Context) {
         }
 
         candidateAdapter?.notifyDataSetChanged()
-        if (!(popupWindow?.isShowing ?: false)) {
-            popupWindow?.showAtLocation(terminalView, Gravity.BOTTOM.and(Gravity.START),
+
+        val popWindow = popupWindow
+        if (popWindow != null) {
+            // Ensure that the popup window will not cover the IME.
+            val rootView = popWindow.contentView
+            if (rootView is MaxHeightView) {
+                val maxHeight = terminalView.height
+                rootView.setMaxHeight(maxHeight)
+            }
+
+            popWindow.showAtLocation(terminalView, Gravity.BOTTOM.and(Gravity.START),
                     terminalView.cursorAbsX,
                     terminalView.cursorAbsY)
         }
@@ -41,6 +49,10 @@ class CandidatePopupWindow(val context: Context) {
         popupWindow?.dismiss()
     }
 
+    fun isShowing(): Boolean {
+        return popupWindow?.isShowing ?: false
+    }
+
     private fun createPopupWindow(): PopupWindow {
         val popupWindow = PopupWindow(context)
         popupWindow.isOutsideTouchable = true
diff --git a/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt b/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
index 85e089a..7eb20ee 100644
--- a/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
+++ b/app/src/main/java/io/neoterm/ui/term/NeoTermActivity.kt
@@ -226,7 +226,7 @@ class NeoTermActivity : AppCompatActivity(), ServiceConnection, SharedPreference
                 .takeWhile { it is TermTab }
                 .forEach {
                     val termTab = it as TermTab
-                    // After stopped, window locatinos may changed
+                    // After stopped, window locations may changed
                     // Rebind it at next time.
                     termTab.resetAutoCompleteStatus()
                 }
diff --git a/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt b/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
index 5847597..5f984c4 100644
--- a/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
+++ b/app/src/main/java/io/neoterm/ui/term/tab/TermTab.kt
@@ -37,7 +37,7 @@ class TermTab(title: CharSequence) : Tab(title), TermUiPresenter {
         resetAutoCompleteStatus()
     }
 
-    fun requireHideIme() {
+    override fun requireHideIme() {
         val terminalView = termData.termView
         if (terminalView != null) {
             val imm = terminalView.context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
@@ -47,6 +47,10 @@ class TermTab(title: CharSequence) : Tab(title), TermUiPresenter {
         }
     }
 
+    override fun requireFinishAutoCompletion(): Boolean {
+        return termData.onAutoCompleteListener?.onFinishCompletion() ?: false
+    }
+
     override fun requireToggleFullScreen() {
         EventBus.getDefault().post(ToggleFullScreenEvent())
     }
diff --git a/app/src/main/java/io/neoterm/view/MaxHeightView.kt b/app/src/main/java/io/neoterm/view/MaxHeightView.kt
new file mode 100644
index 0000000..f456297
--- /dev/null
+++ b/app/src/main/java/io/neoterm/view/MaxHeightView.kt
@@ -0,0 +1,54 @@
+package io.neoterm.view
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+import android.widget.LinearLayout
+
+class MaxHeightView : LinearLayout {
+
+    private var maxHeight = -1
+
+    constructor(context: Context) : super(context) {}
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {}
+
+    constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super(context, attrs, defStyle) {}
+
+    fun setMaxHeight(maxHeight: Int) {
+        this.maxHeight = maxHeight
+    }
+
+    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+        var finalHeightMeasureSpec = heightMeasureSpec
+
+        if (maxHeight > 0) {
+            val heightMode = View.MeasureSpec.getMode(heightMeasureSpec)
+            var heightSize = View.MeasureSpec.getSize(heightMeasureSpec)
+
+            if (heightMode == View.MeasureSpec.EXACTLY) {
+                heightSize = if (heightSize <= maxHeight)
+                    heightSize
+                else
+                    maxHeight
+            }
+
+            if (heightMode == View.MeasureSpec.UNSPECIFIED) {
+                heightSize = if (heightSize <= maxHeight)
+                    heightSize
+                else
+                    maxHeight
+            }
+            if (heightMode == View.MeasureSpec.AT_MOST) {
+                heightSize = if (heightSize <= maxHeight)
+                    heightSize
+                else
+                    maxHeight
+            }
+            finalHeightMeasureSpec = View.MeasureSpec.makeMeasureSpec(heightSize,
+                    heightMode)
+        }
+
+        super.onMeasure(widthMeasureSpec, finalHeightMeasureSpec)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/popup_auto_complete.xml b/app/src/main/res/layout/popup_auto_complete.xml
index 3b3cbaa..2cb9f83 100644
--- a/app/src/main/res/layout/popup_auto_complete.xml
+++ b/app/src/main/res/layout/popup_auto_complete.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<io.neoterm.view.MaxHeightView xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/popup_background"
@@ -10,4 +10,4 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
 
-</LinearLayout>
\ No newline at end of file
+</io.neoterm.view.MaxHeightView>
\ No newline at end of file
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
similarity index 100%
rename from app/src/main/res/values-zh/strings.xml
rename to app/src/main/res/values-zh-rCN/strings.xml
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
new file mode 100644
index 0000000..f435a79
--- /dev/null
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">NeoTerm</string>
+    <string name="about">關於</string>
+    <string name="copy_text">複製</string>
+    <string name="general_settings">一般設定</string>
+    <string name="new_session">新增終端</string>
+    <string name="package_settings">軟件包</string>
+    <string name="paste_text">貼上</string>
+    <string name="pref_general_backspace_map_to_esc">返回鍵發送ESC</string>
+    <string name="pref_general_backspace_map_to_esc_desc">按下返回鍵時，發送ESC而不關閉</string>
+    <string name="pref_general_bell">響鈴</string>
+    <string name="pref_general_bell_desc">收到 \'\\a\' 時響鈴</string>
+    <string name="pref_general_shell">登入程式</string>
+    <string name="pref_general_shell_desc">登入時使用指定的程式</string>
+    <string name="pref_general_vibrate">震動</string>
+    <string name="pref_general_vibrate_desc">收到 \'\\a\' 時震動</string>
+    <string name="pref_general_program_selection">程式選擇模式</string>
+    <string name="pref_general_program_selection_desc">當 NeoTerm 和 系統 都有同一個程式時，選擇要被執行的程式模式</string>
+    <string name="pref_general_initial_command">初始化指令</string>
+    <string name="pref_general_initial_command_desc">在新的創建新的終端時執行指令</string>
+    <string name="pref_package_source">軟體源</string>
+    <string name="pref_ui_close_tab_anim_next_tab">向下切換窗口</string>
+    <string name="pref_ui_close_tab_anim_next_tab_desc">關閉目前視窗時切換到下一個而不是上一個</string>
+    <string name="customization_settings_desc">字體，主題，擴充鍵盤，自動填充</string>
+    <string name="customization_settings">個人化</string>
+    <string name="pref_ui_fullscreen">全螢幕</string>
+    <string name="pref_ui_hide_toolbar">隱藏標題欄</string>
+    <string name="pref_ui_hide_toolbar_desc">在鍵盤顯示時隱藏標題欄</string>
+    <string name="pref_ui_suggestions">顯示建議 (需要 oh-my-zsh)</string>
+    <string name="pref_ui_suggestions_desc">使用一些程式時，在螢幕底部顯示快捷鍵</string>
+    <string name="pref_ui_wide_char_weight_explicit">為寬字元設定權重</string>
+    <string name="pref_ui_wide_char_weight_explicit_desc">如果快捷輸入欄顯示錯誤，請勾選此項目</string>
+    <string name="pref_customization_color_scheme">色彩主題</string>
+    <string name="pref_customization_font">字體</string>
+    <string name="settings">設定</string>
+    <string name="text_selection_more">更多</string>
+    <string name="toggle_ime">切換輸入法</string>
+    <string name="toggle_tab_switcher_menu_item">切換視窗</string>
+    <string name="ui_settings">介面設定</string>
+    <string name="shell_not_found">找不到 Shell %s, 請先安裝.</string>
+    <string name="installer_message">正在安装</string>
+    <string name="installer_install_zsh_required">將要安装 oh-my-zsh 並將登入程式切換到 zsh</string>
+    <string name="fullscreen_mode_changed">全螢幕模式已改變，請重新開啟 NeoTerm</string>
+    <string name="permission_denied">NeoTerm 無法取得必需的權限，正在退出</string>
+    <string name="error">還有這種操作？</string>
+    <string name="use_system_shell">使用系统Shell</string>
+    <string name="retry">重試</string>
+    <string name="source_changed">APT 源已改變，可能需要執行 apt update 來更新</string>
+    <string name="package_details">軟體包: %s\n版本: %s\n依賴: %s\n使用空間: %s\n描述: %s\n首頁: %s</string>
+    <string name="package_list_empty">軟體包列表為空，請檢查你的軟體源</string>
+    <string name="menu_refresh_list">重新整理</string>
+    <string name="menu_update">更新並重新整理</string>
+    <string name="float_up">懸浮視窗</string>
+
+    <string-array name="pref_general_program_selection_entries">
+        <item>只使用 NeoTerm</item>
+        <item>優先使用 NeoTerm</item>
+        <item>優先使用 System</item>
+    </string-array>
+    <string name="done">完成</string>
+    <string name="install">安裝</string>
+
+    <string-array name="pref_package_source_entries">
+        <item>預設軟體源 (穩定，推薦)</item>
+        <item>偵錯軟體源 (可能不穩定)</item>
+        <item>手動輸入…</item>
+    </string-array>
+    <string name="pref_customization_eks">擴充鍵盤</string>
+    <string name="general_settings_desc">響鈴，震動，Shell，初始化指令</string>
+    <string name="ui_settings_desc">全螢幕，標題欄，切換動畫</string>
+    <string name="package_settings_desc">軟體源，更新，升級</string>
+    <string name="install_font">安裝字體</string>
+    <string name="install_color">安裝色彩主題</string>
+    <string name="setup_hello">發現</string>
+    <string name="setup_info">你好，NeoTerm</string>
+    <string name="setup_info2">輕觸以選擇你的最愛</string>
+    <string name="setup_next">安裝</string>
+    <string name="discovery">發現</string>
+    <string name="crash_model">裝置: %s</string>
+    <string name="crash_app">程式: %s</string>
+    <string name="crash_stack_trace">錯誤訊息</string>
+    <string name="crash_tips">我們正在努力讓這個 Activity 永不見天日…</string>
+    <string name="service_status_text">%d 個終端</string>
+    <string name="service_lock_acquired"> (永不休眠)</string>
+    <string name="service_acquire_lock">開啟休眠鎖</string>
+    <string name="service_release_lock">關閉休眠鎖</string>
+    <string name="exit">離開</string>
+    <string name="term_here">在此處打開終端</string>
+    <string name="user_script">使用者腳本</string>
+    <string name="no_user_script_found_or_files_selected">没有找到可用的使用者腳本或是沒有檔案被選擇</string>
+    <string name="files_to_handle">處理的檔案</string>
+    <string name="available_user_scripts">可用的使用者腳本</string>
+    <string name="confirm_remove_file_from_list">從操作列表中中移除檔案？</string>
+</resources>
\ No newline at end of file