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universal7885: CameraLightSensor: Merge codes to 2 files and fix bugs

Browse source 
* Add proguard rules too

* Auto-Brightness still working even if the settings is turned off
This commit is contained in:
roynatech2544 2021-11-09 22:19:53 +09:00
commit ae86b3fdcb
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GPG key ID: 9675C32163D88D30
9 changed files with 357 additions and 390 deletions
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2
a20/AndroidProducts.mk
View file

@ -1,2 +0,0 @@
PRODUCT_MAKEFILES := \
$(LOCAL_DIR)/aosp_a20.mk

8
a20/aosp_a20.mk
View file

@ -1,8 +0,0 @@
# Auto-Generated by device/samsung/a20/setup.sh
$(call inherit-product, device/samsung/a20/full_a20.mk)
$(call inherit-product, vendor/aosp/config/common_full_phone.mk)
PRODUCT_NAME := aosp_a20
# Additional Props
TARGET_FACE_UNLOCK_SUPPORTED := true
TARGET_BOOT_ANIMATION_RES := 720

3
universal7885-common/apps/CameraLightSensor/Android.bp
View file

@ -7,4 +7,7 @@ android_app {
privileged: true,
certificate: "platform",
static_libs: [ "androidx.core_core" ],
optimize: {
proguard_flags_files: ["proguard.flags"],
},
}

6
universal7885-common/apps/CameraLightSensor/AndroidManifest.xml
View file

@ -38,9 +38,5 @@
<action android:name="android.intent.action.SCREEN_ON" />
</intent-filter>
</activity>
<service
android:name=".Camera2Service"
android:foregroundServiceType="camera">
</service>
</application>
</manifest>
</manifest>

7
universal7885-common/apps/CameraLightSensor/proguard.flags Executable file
View file

@ -0,0 +1,7 @@
# Uncomment this to preserve the line number information for
# debugging stack traces.
-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
-renamesourcefileattribute SourceFile

3
universal7885-common/apps/CameraLightSensor/src/com/eurekateam/cameralightsensor/BootReceiver.java
View file

@ -12,8 +12,7 @@ public class BootReceiver extends BroadcastReceiver {
final Intent i = new Intent();
i.setClassName("com.eurekateam.cameralightsensor",
"com.eurekateam.cameralightsensor.CameraLightSensorService");
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
context.startForegroundService(i);
}
}
}

328
universal7885-common/apps/CameraLightSensor/src/com/eurekateam/cameralightsensor/Camera2Service.java
View file

@ -1,328 +0,0 @@
package com.eurekateam.cameralightsensor;
import static com.eurekateam.cameralightsensor.CameraLightSensorService.DEBUG;
import android.annotation.NonNull;
import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.ImageFormat;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.media.Image;
import android.media.ImageReader;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.provider.Settings;
import android.util.Log;
import androidx.core.app.NotificationCompat;
import java.nio.ByteBuffer;
import java.util.Collections;
public class Camera2Service extends Service {
protected static final String TAG = Camera2Service.class.getSimpleName();
protected static final int CAMERACHOICE = CameraCharacteristics.LENS_FACING_FRONT;
boolean destroy;
protected CameraDevice cameraDevice;
protected CameraCaptureSession session;
boolean isavail = true;
protected ImageReader imageReader;
private Context mContext;
private CameraManager manager;
private long mCaptureTime;
private final int DELAY = 5000;
protected CameraDevice.StateCallback cameraStateCallback = new CameraDevice.StateCallback() {
@Override
public void onOpened(@NonNull CameraDevice camera) {
Log.d(TAG, "CameraDevice.StateCallback onOpened");
cameraDevice = camera;
actOnReadyCameraDevice();
}
@Override
public void onDisconnected(@NonNull CameraDevice camera) {
Log.w(TAG, "CameraDevice.StateCallback onDisconnected");
}
@Override
public void onError(@NonNull CameraDevice camera, int error) {
Log.e(TAG, "CameraDevice.StateCallback onError " + error);
}
};
protected CameraCaptureSession.StateCallback sessionStateCallback = new CameraCaptureSession.StateCallback() {
@Override
public void onReady(CameraCaptureSession session) {
if (!destroy) {
Camera2Service.this.session = session;
try {
if (createCaptureRequest() == null) return;
try {
session.capture(createCaptureRequest(), captureCallback, null);
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
Log.w(TAG, "onReady: Session is NULL");
}
} catch (Exception e) {
Log.e(TAG, "Camera is in use");
e.printStackTrace();
}
}
}
@Override
public void onConfigured(CameraCaptureSession session) {
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession session) {
}
};
protected ImageReader.OnImageAvailableListener onImageAvailableListener = reader -> {
if (DEBUG) Log.d(TAG, "onImageAvailable: Capturing");
Image img = reader.acquireLatestImage();
if (img != null) {
try {
processImage(img);
} catch (Settings.SettingNotFoundException | InterruptedException e) {
e.printStackTrace();
}
img.close();
if (DEBUG)
Log.d(TAG, "ImageReader.OnImageAvailableListener: Closing Camera and Sessions..");
cameraDevice.close();
session.close();
}
};
@SuppressLint("MissingPermission")
public void readyCamera() {
manager = (CameraManager) getSystemService(CAMERA_SERVICE);
mCaptureTime = System.currentTimeMillis();
try {
String pickedCamera = getCamera(manager);
manager.registerAvailabilityCallback(availabilityCallback, null);
manager.openCamera(pickedCamera, cameraStateCallback, null);
imageReader = ImageReader.newInstance(250, 250, ImageFormat.JPEG, 2 /* images buffered */);
imageReader.setOnImageAvailableListener(onImageAvailableListener, null);
if (DEBUG) Log.d(TAG, "imageReader created");
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
isavail = false;
}
}
public String getCamera(CameraManager manager) {
try {
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
int cOrientation = characteristics.get(CameraCharacteristics.LENS_FACING);
if (cOrientation == CAMERACHOICE) {
return cameraId;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if(DEBUG) Log.d(TAG, "onStartCommand flags " + flags + " startId " + startId);
destroy = false;
isavail = true;
startForeground(50, PushNotification());
readyCamera();
return START_NOT_STICKY;
}
public Notification PushNotification()
{
NotificationManager nm = (NotificationManager) mContext.getSystemService(NOTIFICATION_SERVICE);
NotificationChannel channel = new NotificationChannel(
mContext.getBasePackageName(), "CameraLightSensor",
NotificationManager.IMPORTANCE_LOW
);
nm.createNotificationChannel(channel);
NotificationCompat.Builder builder =
new NotificationCompat.Builder(mContext, mContext.getBasePackageName());
Intent notificationIntent = new Intent(mContext, Camera2Service.class);
PendingIntent contentIntent = PendingIntent.getActivity(mContext,50,
notificationIntent,PendingIntent.FLAG_IMMUTABLE);
//set
builder.setContentIntent(contentIntent);
builder.setSmallIcon(R.drawable.ic_brightness);
builder.setContentTitle("Camera Light Sensor Service");
builder.setChannelId(mContext.getBasePackageName());
return builder.build();
}
@Override
public void onCreate() {
if(DEBUG) Log.d(TAG, "onCreate service");
mContext = getApplicationContext();
startForeground(50, PushNotification());
readyCamera();
super.onCreate();
}
public void actOnReadyCameraDevice() {
try {
cameraDevice.createCaptureSession(Collections.singletonList(imageReader.getSurface()), sessionStateCallback, null);
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
}
}
@Override
public void onDestroy() {
cameraDevice.close();
if (session != null && isavail) {
try {
session.abortCaptures();
session.close();
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
} catch (IllegalStateException e2){
Log.e(TAG, "Session Already Closed");
}
}
manager.unregisterAvailabilityCallback(availabilityCallback);
isavail = false;
destroy = true;
stopForeground(true);
}
private void processImage(Image image) throws Settings.SettingNotFoundException, InterruptedException {
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
Bitmap bitmapImage = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, null);
int brightness = calculateBrightnessEstimate(bitmapImage,5);
AdjustBrightness(brightness);
}
protected CaptureRequest createCaptureRequest() {
try {
CaptureRequest.Builder builder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
builder.addTarget(imageReader.getSurface());
return builder.build();
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
return null;
}
}
CameraManager.AvailabilityCallback availabilityCallback = new CameraManager.AvailabilityCallback() {
@Override
public void onCameraOpened(String cameraId, String packageId) {
super.onCameraOpened(cameraId, packageId);
Log.i(TAG, "CameraManager.AvailabilityCallback: Camera " + cameraId
+ " Opened by Package " + packageId);
if (packageId.equals(mContext.getBasePackageName())) return;
isavail = false;
}
@Override
public void onCameraUnavailable(String cameraId) {
if (DEBUG) Log.i(TAG, "CameraManager.AvailabilityCallback : Camera NOT Available. ");
isavail = false;
super.onCameraUnavailable(cameraId);
}
@Override
public void onCameraAvailable(String cameraId) {
if (DEBUG) Log.i(TAG, "CameraManager.AvailabilityCallback : Camera IS Available. ");
super.onCameraAvailable(cameraId);
}
@Override
public void onCameraClosed(String cameraId) {
super.onCameraClosed(cameraId);
while (mCaptureTime + DELAY >= System.currentTimeMillis() && isavail) {
try {
Thread.sleep(1000);
if (DEBUG) Log.i(TAG, "CameraManager.AvailabilityCallback: " +
"Thread: Waiting...");
isavail = false;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
isavail = true;
Handler mHandler = new Handler(Looper.getMainLooper());
mHandler.postDelayed(() -> {
if(isavail) readyCamera();
},DELAY);
}
};
CameraCaptureSession.CaptureCallback captureCallback = new CameraCaptureSession.CaptureCallback() {
@Override
public void onCaptureSequenceCompleted(CameraCaptureSession session, int sequenceId, long frameNumber) {
if (DEBUG) Log.d(TAG, "captureCallback: Closing Session");
super.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
cameraDevice.close();
session.close();
}
};
@Override
public IBinder onBind(Intent intent) {
return null;
}
public int calculateBrightnessEstimate(Bitmap bitmap, int pixelSpacing) {
int R = 0; int G = 0; int B = 0;
int height = bitmap.getHeight();
int width = bitmap.getWidth();
int n = 0;
int[] pixels = new int[width * height];
bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
for (int i = 0; i < pixels.length; i += pixelSpacing) {
int color = pixels[i];
R += Color.red(color);
G += Color.green(color);
B += Color.blue(color);
n++;
}
return (R + B + G) / (n * 3);
}
private void AdjustBrightness(int brightness) throws Settings.SettingNotFoundException {
if (DEBUG) Log.i(TAG, "AdjustBrightness: Received Brightness Value " + brightness);
int oldbrightness = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);
if (DEBUG) Log.i(TAG, "AdjustBrightness: Oldval = " + oldbrightness + " Newval = " +
brightness + " Adjusting..");
int newbrightness = brightness;
if (newbrightness > 255){
newbrightness = 255;
}else if (newbrightness < 0){
newbrightness = 0;
}
Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, newbrightness);
}
}

452
universal7885-common/apps/CameraLightSensor/src/com/eurekateam/cameralightsensor/CameraLightSensorService.java
View file

@ -1,49 +1,288 @@
package com.eurekateam.cameralightsensor;
import android.Manifest;
import android.app.Activity;
import android.annotation.NonNull;
import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.ImageFormat;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.media.Image;
import android.media.ImageReader;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.PowerManager;
import android.os.SystemClock;
import android.provider.Settings;
import android.util.Log;
import androidx.core.app.NotificationCompat;
import androidx.core.content.ContextCompat;
public class CameraLightSensorService extends Activity {
private static final String TAG = "CameraLightSensor";
static final boolean DEBUG = false;
Intent i;
import java.nio.ByteBuffer;
import java.util.Collections;
public class CameraLightSensorService extends Service {
protected static final String TAG = CameraLightSensorService.class.getSimpleName();
static final boolean DEBUG = true;
IntentFilter screenStateFilter;
private Context mContext;
public ContentResolver contentResolver;
private boolean mRegistered;
protected static final int CAMERA_CHOICE = CameraCharacteristics.LENS_FACING_FRONT;
boolean destroy;
protected CameraDevice cameraDevice;
protected CameraCaptureSession session;
volatile boolean avail = true;
protected ImageReader imageReader;
private CameraManager manager;
private final static int DELAY = 5 * 1000; // 5 Seconds
private boolean mServiceStarted;
volatile private boolean mLock;
private boolean mThreadRunning;
public Notification PushNotification()
{
NotificationManager nm = (NotificationManager) mContext.getSystemService(NOTIFICATION_SERVICE);
NotificationChannel channel = new NotificationChannel(
mContext.getBasePackageName(), "CameraLightSensor",
NotificationManager.IMPORTANCE_LOW
);
nm.createNotificationChannel(channel);
NotificationCompat.Builder builder =
new NotificationCompat.Builder(mContext, mContext.getBasePackageName());
Intent notificationIntent = new Intent(mContext, CameraLightSensorService.class);
PendingIntent contentIntent = PendingIntent.getActivity(mContext,50,
notificationIntent,PendingIntent.FLAG_IMMUTABLE);
//set
builder.setContentIntent(contentIntent);
builder.setSmallIcon(R.drawable.ic_brightness);
builder.setContentTitle("Camera Light Sensor Service");
builder.setChannelId(mContext.getBasePackageName());
return builder.build();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
moveTaskToBack(true);
public void onDestroy() {
if (DEBUG) Log.d(TAG, "Destroying service");
if(mRegistered) contentResolver.unregisterContentObserver(mSettingsObserver);
mRegistered = false;
cameraDevice.close();
if (session != null && avail) {
try {
session.abortCaptures();
session.close();
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
} catch (IllegalStateException e2){
Log.e(TAG, "Session Already Closed");
}
}
manager.unregisterAvailabilityCallback(availabilityCallback);
avail = false;
destroy = true;
stopForeground(true);
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
private final BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
onDisplayOn();
mServiceStarted = true;
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
if (mServiceStarted) onDisplayOff();
mServiceStarted = false;
}
}
};
// Make a listener for settings
ContentObserver mSettingsObserver = new ContentObserver(new Handler(Looper.getMainLooper())) {
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.i(TAG, "observer: Brightness Settings Changed");
try {
if(Settings.System.getInt(contentResolver, Settings.System.SCREEN_BRIGHTNESS_MODE)
== Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC){
registerReceiver(mScreenStateReceiver, screenStateFilter);
mRegistered = true;
onDisplayOn();
}else{
if(mRegistered) unregisterReceiver(mScreenStateReceiver);
mRegistered = false;
onDisplayOff();
}
} catch (Settings.SettingNotFoundException e) {
e.printStackTrace();
}
}
@Override
public boolean deliverSelfNotifications() {
return true;
}
};
private void onDisplayOn() {
if(DEBUG) Log.d(TAG, "Screen is on. Starting Service...");
avail = true;
readyCamera();
}
private void onDisplayOff(){
if(DEBUG) Log.d(TAG, "Screen is off. Stopping Service...");
thread.interrupt();
avail = false;
mThreadRunning = false;
}
public static void BatteryOptimization(Context context){
Intent intent = new Intent();
String packageName = context.getPackageName();
PowerManager pm = (PowerManager) context.getSystemService(POWER_SERVICE);
if (!pm.isIgnoringBatteryOptimizations(packageName)) {
intent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
intent.setData(Uri.parse("package:" + packageName));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
protected CameraDevice.StateCallback cameraStateCallback = new CameraDevice.StateCallback() {
@Override
public void onOpened(@NonNull CameraDevice camera) {
Log.d(TAG, "CameraDevice.StateCallback onOpened");
cameraDevice = camera;
actOnReadyCameraDevice();
}
@Override
public void onDisconnected(@NonNull CameraDevice camera) {
Log.w(TAG, "CameraDevice.StateCallback onDisconnected");
}
@Override
public void onError(@NonNull CameraDevice camera, int error) {
Log.e(TAG, "CameraDevice.StateCallback onError " + error);
}
};
protected CameraCaptureSession.StateCallback sessionStateCallback = new CameraCaptureSession.StateCallback() {
@Override
public void onReady(CameraCaptureSession session) {
if (!destroy) {
CameraLightSensorService.this.session = session;
try {
if (createCaptureRequest() == null) return;
try {
session.capture(createCaptureRequest(), captureCallback, null);
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
Log.w(TAG, "onReady: Session is NULL");
}
} catch (Exception e) {
Log.e(TAG, "Camera is in use");
e.printStackTrace();
}
}
}
@Override
public void onConfigured(CameraCaptureSession session) {
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession session) {
}
};
protected ImageReader.OnImageAvailableListener onImageAvailableListener = reader -> {
if (DEBUG) Log.d(TAG, "onImageAvailable: Capturing");
Image img = reader.acquireLatestImage();
if (img != null) {
try {
processImage(img);
} catch (Settings.SettingNotFoundException | InterruptedException e) {
e.printStackTrace();
}
img.close();
if (DEBUG)
Log.d(TAG, "ImageReader.OnImageAvailableListener: Closing Camera and Sessions..");
cameraDevice.close();
session.close();
}
};
@SuppressLint("MissingPermission")
public void readyCamera() {
manager = (CameraManager) getSystemService(CAMERA_SERVICE);
try {
String pickedCamera = getCamera(manager);
manager.registerAvailabilityCallback(availabilityCallback, null);
manager.openCamera(pickedCamera, cameraStateCallback, null);
imageReader = ImageReader.newInstance(250, 250, ImageFormat.JPEG, 2 /* images buffered */);
imageReader.setOnImageAvailableListener(onImageAvailableListener, null);
if(!mThreadRunning){
Thread mMyThread = new Thread(thread);
mMyThread.start();
mThreadRunning = true;
}
if (DEBUG) Log.d(TAG, "imageReader created");
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
}
}
public String getCamera(CameraManager manager) {
try {
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
int cOrientation = characteristics.get(CameraCharacteristics.LENS_FACING);
if (cOrientation == CAMERA_CHOICE) {
return cameraId;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
mContext = getApplicationContext();
contentResolver = getContentResolver();
startForeground(50, PushNotification(), ServiceInfo.FOREGROUND_SERVICE_TYPE_CAMERA);
BatteryOptimization(mContext);
i = new Intent(mContext, Camera2Service.class);
if (this.checkSelfPermission(Manifest.permission.CAMERA) ==
PackageManager.PERMISSION_GRANTED) {
Log.d(TAG, "Permission Granted");
} else {
// You can directly ask for the permission.
this.requestPermissions(new String[] { Manifest.permission.CAMERA },
1);
}
mRegistered = false;
screenStateFilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
@ -57,71 +296,132 @@ public class CameraLightSensorService extends Activity {
e.printStackTrace();
}
Uri setting = Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS_MODE);
contentResolver.registerContentObserver(setting, false, observer);
contentResolver.registerContentObserver(setting, false, mSettingsObserver);
if(DEBUG) Log.d(TAG, "onStartCommand flags " + flags + " startId " + startId);
destroy = false;
avail = true;
startForeground(50, PushNotification());
return START_NOT_STICKY;
}
}
@Override
public void onDestroy() {
if (DEBUG) Log.d(TAG, "Destroying service");
mRegistered = false;
contentResolver.unregisterContentObserver(observer);
super.onDestroy();
public void onCreate() {
if(DEBUG) Log.d(TAG, "onCreate service");
mContext = getApplicationContext();
startForeground(50, PushNotification());
super.onCreate();
}
private final BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
onDisplayOn();
mServiceStarted = true;
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
if (mServiceStarted) onDisplayOff();
mServiceStarted = false;
}
public void actOnReadyCameraDevice() {
try {
cameraDevice.createCaptureSession(Collections.singletonList(imageReader.getSurface()), sessionStateCallback, null);
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
mLock = false;
}
}
private void processImage(Image image) throws Settings.SettingNotFoundException, InterruptedException {
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
Bitmap bitmapImage = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, null);
int brightness = calculateBrightnessEstimate(bitmapImage,5);
AdjustBrightness(brightness);
}
protected CaptureRequest createCaptureRequest() {
try {
CaptureRequest.Builder builder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
builder.addTarget(imageReader.getSurface());
return builder.build();
} catch (CameraAccessException e) {
Log.e(TAG, e.getMessage());
mLock = false;
return null;
}
}
CameraManager.AvailabilityCallback availabilityCallback = new CameraManager.AvailabilityCallback() {
@Override
public void onCameraOpened(String cameraId, String packageId) {
super.onCameraOpened(cameraId, packageId);
Log.i(TAG, "CameraManager.AvailabilityCallback: Camera " + cameraId
+ " Opened by Package " + packageId);
mLock = true;
if (packageId.equals(mContext.getBasePackageName())) return;
avail = false;
}
@Override
public void onCameraUnavailable(String cameraId) {
if (DEBUG) Log.i(TAG, "CameraManager.AvailabilityCallback : Camera NOT Available. ");
avail = false;
super.onCameraUnavailable(cameraId);
}
@Override
public void onCameraAvailable(String cameraId) {
if (DEBUG) Log.i(TAG, "CameraManager.AvailabilityCallback : Camera IS Available. ");
avail = true;
mLock = false;
super.onCameraAvailable(cameraId);
}
@Override
public void onCameraClosed(String cameraId) {
super.onCameraClosed(cameraId);
}
};
// Make a listener
ContentObserver observer = new ContentObserver(new Handler(Looper.getMainLooper())) {
CameraCaptureSession.CaptureCallback captureCallback = new CameraCaptureSession.CaptureCallback() {
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.i(TAG, "observer: Brightness Settings Changed");
try {
if(Settings.System.getInt(contentResolver, Settings.System.SCREEN_BRIGHTNESS_MODE)
== Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC){
registerReceiver(mScreenStateReceiver, screenStateFilter);
mRegistered = true;
mContext.startForegroundService(i);
}else{
if(mRegistered) unregisterReceiver(mScreenStateReceiver);
mRegistered = false;
mContext.stopService(i);
}
} catch (Settings.SettingNotFoundException e) {
e.printStackTrace();
}
}
@Override
public boolean deliverSelfNotifications() {
return true;
public void onCaptureSequenceCompleted(CameraCaptureSession session, int sequenceId, long frameNumber) {
if (DEBUG) Log.d(TAG, "captureCallback: Closing Session");
super.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
cameraDevice.close();
session.close();
}
};
private void onDisplayOn() {
if(DEBUG) Log.d(TAG, "Screen is on. Starting Service...");
mContext.startForegroundService(i);
public int calculateBrightnessEstimate(Bitmap bitmap, int pixelSpacing) {
int R = 0; int G = 0; int B = 0;
int height = bitmap.getHeight();
int width = bitmap.getWidth();
int n = 0;
int[] pixels = new int[width * height];
bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
for (int i = 0; i < pixels.length; i += pixelSpacing) {
int color = pixels[i];
R += Color.red(color);
G += Color.green(color);
B += Color.blue(color);
n++;
}
return (R + B + G) / (n * 3);
}
private void onDisplayOff(){
if(DEBUG) Log.d(TAG, "Screen is off. Stopping Service...");
mContext.stopService(i);
private void AdjustBrightness(int brightness) throws Settings.SettingNotFoundException {
if (DEBUG) Log.i(TAG, "AdjustBrightness: Received Brightness Value " + brightness);
int oldbrightness = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);
if (DEBUG) Log.i(TAG, "AdjustBrightness: OldVal = " + oldbrightness + " NewVal = " +
brightness + " Adjusting..");
int newbrightness = brightness;
if (newbrightness > 255){
newbrightness = 255;
}else if (newbrightness < 0){
newbrightness = 0;
}
Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, newbrightness);
}
public static void BatteryOptimization(Context context){
Intent intent = new Intent();
String packageName = context.getPackageName();
PowerManager pm = (PowerManager) context.getSystemService(POWER_SERVICE);
if (!pm.isIgnoringBatteryOptimizations(packageName)) {
intent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
intent.setData(Uri.parse("package:" + packageName));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
Thread thread = new Thread(() -> {
while (!Thread.currentThread().isInterrupted()) {
if (avail && !mLock) {
SystemClock.sleep(DELAY);
ContextCompat.getMainExecutor(mContext).execute(() -> {
if (avail) readyCamera();
});
}
}
}
});
}

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universal7885-common/vendor_detect/prebuilt
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