fixed issues with sound volume on lock screen

README.md

@@ -4,3 +4,6 @@ Always on Display (AOD) Double Tap to Lock Screen
 **Install**  
 - Download and install [apk](https://github.com/XJIOP/OnePlus-AOD-DoubleTap-Mod/releases)
 - Activate this mod in Android Settings -> System -> Accessibility
+- In fingerprint settings need enable option -> Tap the screen to show
+- Now one tap it shows AOD, double tap from AOD to show screen lock
+- Enjoy!

app/.gitignore

@@ -1 +1,3 @@
 /build
+/debug
+/release

app/build.gradle

@@ -6,9 +6,8 @@ android {
         applicationId "org.xjiop.oneplusaoddoubletapmod"
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 1
-        versionName "1.0"
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        versionCode 11
+        versionName "1.1"
     }
     buildTypes {
         release {

app/src/main/java/org/xjiop/oneplusaoddoubletapmod/KeyService.java

@@ -3,22 +3,36 @@
 import android.accessibilityservice.AccessibilityService;
 import android.content.Context;
 import android.os.PowerManager;
+import android.util.Log;
 import android.view.KeyEvent;
 import android.view.accessibility.AccessibilityEvent;
 
 public class KeyService extends AccessibilityService {
 
+    private final String TAG = "KeyService";
+
     private long CLICK_DELAY;
 
     @Override
-    public void onAccessibilityEvent(AccessibilityEvent event) {}
+    public void onAccessibilityEvent(AccessibilityEvent event) {
+        //Log.d(TAG, "onAccessibilityEvent: " + event);
+    }
 
     @Override
-    public void onInterrupt() {}
+    public void onInterrupt() {
+        //Log.d(TAG, "onInterrupt");
+    }
 
     @Override
     protected boolean onKeyEvent(KeyEvent event) {
-        return doubleClick();
+        //Log.d(TAG, "onKeyEvent: " + event);
+
+        boolean result = false;
+
+        if(event.getKeyCode() == KeyEvent.KEYCODE_F4)
+            result = doubleClick();
+
+        return result;
     }
 
     private boolean doubleClick() {
@@ -31,16 +45,20 @@ private boolean doubleClick() {
             CLICK_DELAY = -1;
             result = true;
 
-            PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
-            PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK |PowerManager.ACQUIRE_CAUSES_WAKEUP, getPackageName()+":double_tap");
-            wl.acquire(500L);
-            wl.release();
+            PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
+            if(powerManager != null) {
+                PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, getPackageName() + ":double_tap");
+                wakeLock.acquire(500L);
+                wakeLock.release();
+            }
         }
         else {
             CLICK_DELAY = thisTime;
             result = false;
         }
 
+        //Log.d(TAG, "doubleClick: " + result);
+
         return result;
     }
 }