Fix #828: Add accessibility API

app/src/main/AndroidManifest.xml

@@ -176,6 +176,19 @@
             android:enabled="true"
             android:exported="false" />
 
+        <service
+            android:name=".TermuxAccessibilityService"
+            android:enabled="true"
+            android:exported="false"
+            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
+            <intent-filter>
+                <action android:name="android.accessibilityservice.AccessibilityService"/>
+            </intent-filter>
+            <meta-data
+                android:name="android.accessibilityservice"
+                android:resource="@xml/accessibility_service_config"/>
+        </service>
+
         <service
             android:name=".apis.JobSchedulerAPI$JobSchedulerService"
             android:permission="android.permission.BIND_JOB_SERVICE"

app/src/main/java/com/termux/api/TermuxAccessibilityService.java

@@ -0,0 +1,26 @@
+package com.termux.api;
+
+import com.termux.shared.logger.Logger;
+
+import android.accessibilityservice.AccessibilityService;
+import android.view.accessibility.AccessibilityEvent;
+
+public class TermuxAccessibilityService extends AccessibilityService {
+
+    private static final String LOG_TAG = "AccessibilityService";
+
+	public static TermuxAccessibilityService instance;
+
+    @Override
+    protected void onServiceConnected() {
+        super.onServiceConnected();
+        Logger.logDebug(LOG_TAG, "onServiceConnected");
+        instance = this;
+    }
+
+    @Override
+    public void onAccessibilityEvent(AccessibilityEvent event) {}
+
+    @Override
+    public void onInterrupt() {}
+}

app/src/main/java/com/termux/api/TermuxApiReceiver.java

@@ -8,6 +8,7 @@
 import android.provider.Settings;
 import android.widget.Toast;
 
+import com.termux.api.apis.AccessibilityAPI;
 import com.termux.api.apis.AudioAPI;
 import com.termux.api.apis.BatteryStatusAPI;
 import com.termux.api.apis.BrightnessAPI;
@@ -84,6 +85,9 @@ private void doWork(Context context, Intent intent) {
         }
 
         switch (apiMethod) {
+            case "Accessibility":
+                AccessibilityAPI.onReceive(this, context, intent);
+                break;
             case "AudioInfo":
                 AudioAPI.onReceive(this, context, intent);
                 break;