diff --git a/app/src/main/assets/docs/app.html b/app/src/main/assets/docs/app.html
index 58e3e3ae..211eddbb 100644
--- a/app/src/main/assets/docs/app.html
+++ b/app/src/main/assets/docs/app.html
@@ -86,6 +86,7 @@
 <li><span class="stability_undefined"><a href="#app_app_uninstall_packagename">app.uninstall(packageName)</a></span></li>
 <li><span class="stability_undefined"><a href="#app_app_openurl_url">app.openUrl(url)</a></span></li>
 <li><span class="stability_undefined"><a href="#app_app_sendemail_options">app.sendEmail(options)</a></span></li>
+<li><span class="stability_undefined"><a href="#app_app_startactivity_name">app.startActivity(name)</a></span></li>
 </ul>
 </li>
 <li><span class="stability_undefined"><a href="#app_intent">进阶: 意图Intent</a></span><ul>
@@ -191,6 +192,16 @@ app.sendEmail({
     subject: &quot;这是一个邮件标题&quot;,
     text: &quot;这是邮件正文&quot;
 });
+</code></pre><h2>app.startActivity(name)<span><a class="mark" href="#app_app_startactivity_name" id="app_app_startactivity_name">#</a></span></h2>
+<div class="signature"><ul>
+<li><code>name</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 活动名称，可选的值为:<ul>
+<li><code>console</code> 日志界面</li>
+<li><code>settings</code> 设置界面</li>
+</ul>
+</li>
+</ul>
+</div><p>启动Auto.js的特定界面。该函数在Auto.js内运行则会打开Auto.js内的界面，在打包应用中运行则会打开打包应用的相应界面。</p>
+<pre><code>app.startActivity(&quot;console&quot;);
 </code></pre><h1>进阶: 意图Intent<span><a class="mark" href="#app_intent" id="app_intent">#</a></span></h1>
 <p>Intent(意图) 是一个消息传递对象，您可以使用它从其他应用组件请求操作。尽管 Intent 可以通过多种方式促进组件之间的通信，但其基本用例主要包括以下三个：</p>
 <ul>
diff --git a/app/src/main/assets/docs/events.html b/app/src/main/assets/docs/events.html
index 446c0d1b..f773ebf2 100644
--- a/app/src/main/assets/docs/events.html
+++ b/app/src/main/assets/docs/events.html
@@ -83,6 +83,7 @@
 <li><span class="stability_undefined"><a href="#events_events_oncekeyup_keyname_listener">events.onceKeyUp(keyName, listener)</a></span></li>
 <li><span class="stability_undefined"><a href="#events_events_removeallkeydownlisteners_keyname">events.removeAllKeyDownListeners(keyName)</a></span></li>
 <li><span class="stability_undefined"><a href="#events_events_removeallkeyuplisteners_keyname">events.removeAllKeyUpListeners(keyName)</a></span></li>
+<li><span class="stability_undefined"><a href="#events_events_setkeyinterceptionenabled_key_enabled">events.setKeyInterceptionEnabled([key, ]enabled)</a></span></li>
 <li><span class="stability_undefined"><a href="#events_events_observetouch">events.observeTouch()</a></span></li>
 <li><span class="stability_undefined"><a href="#events_events_settoucheventtimeout_timeout">events.setTouchEventTimeout(timeout)</a></span></li>
 <li><span class="stability_undefined"><a href="#events_events_gettoucheventtimeout">events.getTouchEventTimeout()</a></span></li>
@@ -219,6 +220,21 @@ events.onKeyDown(&quot;home&quot;, function(event){
 <li><code>keyName</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 按键名称</li>
 </ul>
 </div><p>删除该按键的KeyUp(弹起)事件的所有监听。</p>
+<h2>events.setKeyInterceptionEnabled([key, ]enabled)<span><a class="mark" href="#events_events_setkeyinterceptionenabled_key_enabled" id="events_events_setkeyinterceptionenabled_key_enabled">#</a></span></h2>
+<div class="signature"><ul>
+<li><code>enabled</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type" class="type">&lt;boolean&gt;</a></li>
+<li><code>key</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 要屏蔽的按键</li>
+</ul>
+</div><p>设置按键屏蔽是否启用。所谓按键屏蔽指的是，屏蔽原有按键的功能，例如使得音量键不再能调节音量，但此时仍然能通过按键事件监听按键。</p>
+<p>如果不加参数key则会屏蔽所有按键。</p>
+<p>例如，调用<code>events.setKeyInterceptionEnabled(true)</code>会使系统的音量、Home、返回等键不再具有调节音量、回到主页、返回的作用，但此时仍然能通过按键事件监听按键。</p>
+<p>该函数通常于按键监听结合，例如想监听音量键并使音量键按下时不弹出音量调节框则为：</p>
+<pre><code>events.setKeyInterceptionEnabled(&quot;volume_up&quot;, true);
+events.observeKey();
+events.onKeyDown(&quot;volume_up&quot;, ()=&gt;{
+    log(&quot;音量上键被按下&quot;);
+});
+</code></pre><p>只要有一个脚本屏蔽了某个按键，该按键便会被屏蔽；当脚本退出时，会自动解除所有按键屏蔽。</p>
 <h2>events.observeTouch()<span><a class="mark" href="#events_events_observetouch" id="events_events_observetouch">#</a></span></h2>
 <p>启用屏幕触摸监听。（需要root权限）</p>
 <p>只有这个函数被成功执行后, 触摸事件的监听才有效。</p>
diff --git a/app/src/main/assets/docs/http.html b/app/src/main/assets/docs/http.html
index 7f072d79..30d44950 100644
--- a/app/src/main/assets/docs/http.html
+++ b/app/src/main/assets/docs/http.html
@@ -118,8 +118,8 @@ http.get(&quot;www.baidu.com&quot;, {}, function(res, err){
         console.error(err);
         return;
     }
-    log(&quot;code = &quot; + r.statusCode);
-    log(&quot;html = &quot; + r.body.string());
+    log(&quot;code = &quot; + res.statusCode);
+    log(&quot;html = &quot; + res.body.string());
 });
 </code></pre><p>如果要增加HTTP头部信息，则在options参数中添加，例如：</p>
 <pre><code>console.show();
diff --git a/app/src/main/assets/docs/widgets-based-automation.html b/app/src/main/assets/docs/widgets-based-automation.html
index 36a7fb67..d0dc5fec 100644
--- a/app/src/main/assets/docs/widgets-based-automation.html
+++ b/app/src/main/assets/docs/widgets-based-automation.html
@@ -76,6 +76,8 @@
         <ul>
 <li><span class="stability_undefined"><a href="#widgets_based_automation">基于控件的操作</a></span><ul>
 <li><span class="stability_undefined"><a href="#widgets_based_automation_auto_mode">auto([mode])</a></span></li>
+<li><span class="stability_undefined"><a href="#widgets_based_automation_auto_waitfor">auto.waitFor()</a></span></li>
+<li><span class="stability_undefined"><a href="#widgets_based_automation_auto_setmode_mode">auto.setMode(mode)</a></span></li>
 </ul>
 </li>
 <li><span class="stability_2"><a href="#widgets_based_automation_simpleactionautomator">SimpleActionAutomator</a></span><ul>
@@ -213,11 +215,23 @@
 <li><code>normal</code> 正常模式，默认。</li>
 </ul>
 <p>如果不加mode参数，则为正常模式。</p>
+<p>建议使用<code>auto.waitFor()</code>和<code>auto.setMode()</code>代替该函数，因为<code>auto()</code>函数如果无障碍服务未启动会停止脚本；而<code>auto.waitFor()</code>则会在在无障碍服务启动后继续运行。</p>
 <p>示例：</p>
 <pre><code>auto(&quot;fast&quot;);
 </code></pre><p>示例2：</p>
 <pre><code>auto();
-</code></pre><h1>SimpleActionAutomator<span><a class="mark" href="#widgets_based_automation_simpleactionautomator" id="widgets_based_automation_simpleactionautomator">#</a></span></h1>
+</code></pre><h2>auto.waitFor()<span><a class="mark" href="#widgets_based_automation_auto_waitfor" id="widgets_based_automation_auto_waitfor">#</a></span></h2>
+<p>检查无障碍服务是否已经启用，如果没有启用则跳转到无障碍服务启用界面，并等待无障碍服务启动；当无障碍服务启动后脚本会继续运行。</p>
+<h2>auto.setMode(mode)<span><a class="mark" href="#widgets_based_automation_auto_setmode_mode" id="widgets_based_automation_auto_setmode_mode">#</a></span></h2>
+<div class="signature"><ul>
+<li><code>mode</code> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type" class="type">&lt;string&gt;</a> 模式</li>
+</ul>
+</div><p>设置无障碍模式为mode。mode的可选值为：</p>
+<ul>
+<li><code>fast</code> 快速模式。该模式下会启用控件缓存，从而选择器获取屏幕控件更快。对于需要快速的控件查看和操作的脚本可以使用该模式，一般脚本则没有必要使用该函数。</li>
+<li><code>normal</code> 正常模式，默认。</li>
+</ul>
+<h1>SimpleActionAutomator<span><a class="mark" href="#widgets_based_automation_simpleactionautomator" id="widgets_based_automation_simpleactionautomator">#</a></span></h1>
 <div class="api_stability api_stability_2"><a href="documentation.html#documentation_stability_index">Stability: 2</a> - Stable</div><p>SimpleActionAutomator提供了一些模拟简单操作的函数，例如点击文字、模拟按键等。这些函数可以直接作为全局函数使用。</p>
 <h2>click(text[, i])<span><a class="mark" href="#widgets_based_automation_click_text_i" id="widgets_based_automation_click_text_i">#</a></span></h2>
 <div class="signature"><ul>
diff --git a/app/src/main/assets/indices/all.json b/app/src/main/assets/indices/all.json
index 3fd07177..de6a4202 100644
--- a/app/src/main/assets/indices/all.json
+++ b/app/src/main/assets/indices/all.json
@@ -513,6 +513,11 @@
         "url": "events.html#events_events_observekey",
         "summary": "监听按键"
       },
+      {
+        "key": "setKeyInterceptionEnabled",
+        "url": "events.html#events_events_setkeyinterceptionenabled_key_enabled",
+        "summary": "屏蔽按键"
+      },
       {
         "key": "observeTouch",
         "url": "events.html#events_events_observetouch",
diff --git a/autojs/src/main/assets/modules/__automator__.js b/autojs/src/main/assets/modules/__automator__.js
index 19b3fa92..f90a8440 100644
--- a/autojs/src/main/assets/modules/__automator__.js
+++ b/autojs/src/main/assets/modules/__automator__.js
@@ -111,13 +111,8 @@ module.exports = function(runtime, global){
 
     global.auto = function(mode){
         if(mode){
-            if(typeof(mode) !== "string"){
-                throw new TypeError("mode should be a string");
-            }
-            mode = modes[mode.toLowerCase()];
+            global.auto.setMode(mode);
         }
-        mode = mode || 0;
-        runtime.accessibilityBridge.setMode(mode);
         runtime.accessibilityBridge.ensureServiceEnabled();
     }
 
@@ -125,6 +120,14 @@ module.exports = function(runtime, global){
         runtime.accessibilityBridge.waitForServiceEnabled();
     }
 
+    global.auto.setMode = function(mode){
+        if(typeof(mode) !== "string"){
+            throw new TypeError("mode should be a string");
+        }
+        mode = modes[mode.toLowerCase()] || 0;
+        runtime.accessibilityBridge.setMode(mode);
+    }
+
 
     global.__asGlobal__(runtime.automator, ['back', 'home', 'powerDialog', 'notifications', 'quickSettings', 'recents', 'splitScreen']);
     global.__asGlobal__(automator, ['click', 'longClick', 'press', 'swipe', 'gesture', 'gestures', 'gestureAsync', 'gesturesAsync', 'scrollDown', 'scrollUp', 'input', 'setText']);
diff --git a/autojs/src/main/java/com/stardust/autojs/runtime/api/Events.java b/autojs/src/main/java/com/stardust/autojs/runtime/api/Events.java
index cc931e30..ec3c9e43 100644
--- a/autojs/src/main/java/com/stardust/autojs/runtime/api/Events.java
+++ b/autojs/src/main/java/com/stardust/autojs/runtime/api/Events.java
@@ -9,8 +9,6 @@ import android.os.Handler;
 import android.provider.Settings;
 import android.support.annotation.RequiresApi;
 import android.view.KeyEvent;
-import android.view.View;
-import android.view.ViewGroup;
 
 import com.stardust.autojs.R;
 import com.stardust.autojs.core.accessibility.AccessibilityBridge;
@@ -30,6 +28,9 @@ import com.stardust.view.accessibility.KeyInterceptor;
 import com.stardust.view.accessibility.NotificationListener;
 import com.stardust.view.accessibility.OnKeyListener;
 
+import java.util.HashSet;
+import java.util.Set;
+
 /**
  * Created by Stardust on 2017/7/18.
  */
@@ -50,8 +51,9 @@ public class Events extends EventEmitter implements OnKeyListener, TouchObserver
     private boolean mListeningNotification = false;
     private boolean mListeningToast = false;
     private ScriptRuntime mScriptRuntime;
-    private volatile boolean mInterceptsKey = false;
+    private volatile boolean mInterceptsAllKey = false;
     private KeyInterceptor mKeyInterceptor;
+    private Set<String> mInterceptedKeys = new HashSet<>();
 
     public Events(Context context, AccessibilityBridge accessibilityBridge, ScriptRuntime runtime) {
         super(runtime.bridges);
@@ -105,13 +107,33 @@ public class Events extends EventEmitter implements OnKeyListener, TouchObserver
     }
 
     public void setKeyInterceptionEnabled(boolean enabled) {
-        mInterceptsKey = enabled;
-        if (mInterceptsKey && mKeyInterceptor == null) {
-            mKeyInterceptor = event -> mInterceptsKey;
-            getAccessibilityService().getKeyInterrupterObserver().addKeyInterrupter(mKeyInterceptor);
+        mInterceptsAllKey = enabled;
+        if (mInterceptsAllKey) {
+            ensureKeyInterceptor();
         }
     }
 
+    public void setKeyInterceptionEnabled(String key, boolean enabled) {
+        if (enabled) {
+            mInterceptedKeys.add(key);
+            ensureKeyInterceptor();
+        } else {
+            mInterceptedKeys.remove(key);
+        }
+    }
+
+    private void ensureKeyInterceptor() {
+        if (mKeyInterceptor != null)
+            return;
+        mKeyInterceptor = event -> {
+            if (mInterceptsAllKey)
+                return true;
+            String keyName = KeyEvent.keyCodeToString(event.getKeyCode()).substring(8).toLowerCase();
+            return mInterceptedKeys.contains(keyName);
+        };
+        getAccessibilityService().getKeyInterrupterObserver().addKeyInterrupter(mKeyInterceptor);
+    }
+
     private AccessibilityService getAccessibilityService() {
         mScriptRuntime.ensureAccessibilityServiceEnabled();
         AccessibilityService service = mAccessibilityBridge.getService();