api(events): events.setKeyInterceptionEnabled()

automator/src/main/java/com/stardust/view/accessibility/AccessibilityService.java

@@ -1,8 +1,6 @@
 package com.stardust.view.accessibility;
 
-import android.content.Context;
 import android.os.Build;
-import android.os.Handler;
 import android.support.annotation.Nullable;
 import android.util.Log;
 import android.view.KeyEvent;
@@ -13,10 +11,7 @@ import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.SortedMap;
-import java.util.Timer;
-import java.util.TimerTask;
 import java.util.TreeMap;
-import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
@@ -40,6 +35,7 @@ public class AccessibilityService extends android.accessibilityservice.Accessibi
     private static boolean containsAllEventTypes = false;
     private static final Set<Integer> eventTypes = new HashSet<>();
     private OnKeyListener.Observer mOnKeyObserver = new OnKeyListener.Observer();
+    private KeyInterceptor.Observer mKeyInterrupterObserver = new KeyInterceptor.Observer();
     private ExecutorService mKeyEventExecutor;
     private AccessibilityNodeInfo mFastRootInActiveWindow;
 
@@ -97,7 +93,11 @@ public class AccessibilityService extends android.accessibilityservice.Accessibi
             stickOnKeyObserver.onKeyEvent(event.getKeyCode(), event);
             mOnKeyObserver.onKeyEvent(event.getKeyCode(), event);
         });
-        return false;
+        return mKeyInterrupterObserver.onInterceptKeyEvent(event);
+    }
+
+    public KeyInterceptor.Observer getKeyInterrupterObserver() {
+        return mKeyInterrupterObserver;
     }
 
     public OnKeyListener.Observer getOnKeyObserver() {

automator/src/main/java/com/stardust/view/accessibility/KeyInterceptor.java

@@ -0,0 +1,41 @@
+package com.stardust.view.accessibility;
+
+import android.view.KeyEvent;
+
+import java.util.concurrent.CopyOnWriteArrayList;
+
+/**
+ * Created by Stardust on 2018/2/27.
+ */
+
+public interface KeyInterceptor {
+
+    boolean onInterceptKeyEvent(KeyEvent event);
+
+    class Observer implements KeyInterceptor {
+        private CopyOnWriteArrayList<KeyInterceptor> mKeyInterceptors = new CopyOnWriteArrayList<>();
+
+        public void addKeyInterrupter(KeyInterceptor interrupter){
+            mKeyInterceptors.add(interrupter);
+        }
+
+        public boolean removeKeyInterrupter(KeyInterceptor interrupter){
+            return mKeyInterceptors.remove(interrupter);
+        }
+
+
+        @Override
+        public boolean onInterceptKeyEvent(KeyEvent event) {
+            for(KeyInterceptor interrupter : mKeyInterceptors){
+                try {
+                    if(interrupter.onInterceptKeyEvent(event)){
+                        return true;
+                    }
+                }catch (Exception e){
+                    e.printStackTrace();
+                }
+            }
+            return false;
+        }
+    }
+}