universal7885: Inital cameraLightSensor impl

Change-Id: I75791c6b28700d71c990c15b9798fde9713d2e24
Signed-off-by: roynatech2544 <whiteshell2544@naver.com>
This commit is contained in:
roynatech2544 2021-10-29 22:49:17 +09:00
commit 56c3102c14
No known key found for this signature in database
GPG key ID: 9675C32163D88D30
23 changed files with 483 additions and 0 deletions

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android_app {
name: "CameraLightSensor",
srcs: [
"src/**/*.java",
],
platform_apis: true,
privileged: true,
certificate: "platform",
}

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.eurekateam.cameralightsensor">
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<protected-broadcast android:name="com.android.systemui.doze.pulse" />
<application
android:allowBackup="true"
android:label="@string/app_name">
<receiver
android:name=".BootReceiver"
android:defaultToDeviceProtectedStorage="true"
android:directBootAware="true"
android:enabled="true"
android:exported="true">
<intent-filter android:priority="1000">
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service
android:name=".CameraLightSensorService"
android:exported="true">
</service>
<service
android:name=".CameraListener"
android:exported="true">
</service>
</application>
</manifest>

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package com.eurekateam.cameralightsensor;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class BootReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
final Intent i = new Intent(context, CameraLightSensorService.class);
context.startService(i);
}
}

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package com.eurekateam.cameralightsensor;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
public class CameraLightSensorService extends Service {
private static final String TAG = "CameraLightSensor";
private static final boolean DEBUG = false;
final Intent i = new Intent(getApplicationContext(), CameraListener.class);
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
IntentFilter screenStateFilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
registerReceiver(mScreenStateReceiver, screenStateFilter);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (DEBUG) Log.d(TAG, "Starting service");
return START_STICKY;
}
@Override
public void onDestroy() {
if (DEBUG) Log.d(TAG, "Destroying service");
super.onDestroy();
this.unregisterReceiver(mScreenStateReceiver);
}
private final BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
try {
onDisplayOn();
} catch (Settings.SettingNotFoundException e) {
e.printStackTrace();
}
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
onDisplayOff();
}
}
};
private void onDisplayOn() throws Settings.SettingNotFoundException {
if(Settings.System.getInt(getContentResolver(),
Settings.System.SCREEN_BRIGHTNESS_MODE ) == 1){
Log.d(TAG, "AutoBrightness Mode Enabled. Starting...");
getApplicationContext().startService(i);
}else{
Log.d(TAG, "AutoBrightness Mode Disabled, Not Starting Service...");
}
}
private void onDisplayOff(){
Log.d(TAG, "Screen is off. Stopping Service...");
getApplicationContext().stopService(i);
}
}

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package com.eurekateam.cameralightsensor;
import android.app.Service;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.ImageFormat;
import android.graphics.Rect;
import android.graphics.YuvImage;
import android.hardware.Camera;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.provider.Settings;
import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
public class CameraListener extends Service {
private final String TAG = CameraListener.class.getSimpleName();
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
@Override
public void onCreate() {
super.onCreate();
Handler mHandler = new Handler(Looper.getMainLooper());
AtomicInteger prev = new AtomicInteger(Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 50));
mHandler.postDelayed(() -> {
int current = calculateBrightnessEstimate(getPreviewBitmap());
Log.i(TAG, ": Current Brigtness: " + current);
if(prev.get() > current) {
while (prev.get() - current > 0) {
Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, current);
current += 2;
}
}else{
while (prev.get() - current < 0) {
Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, current);
current -= 2;
}
}
prev.set(current);
},1000);
}
private int findFrontFacingCamera() {
return 2;
}
private Bitmap getPreviewBitmap() {
AtomicReference<Bitmap> bitmap = null;
Camera mCamera = Camera.open(findFrontFacingCamera());
mCamera.setPreviewCallback((data, camera) -> {
if (camera != null) {
Camera.Parameters parameters = camera.getParameters();
int imageFormat = parameters.getPreviewFormat();
if (imageFormat == ImageFormat.NV21) {
int w = parameters.getPreviewSize().width;
int h = parameters.getPreviewSize().height;
YuvImage yuvImage = new YuvImage(data, imageFormat, w, h, null);
Rect rect = new Rect(0, 0, w, h);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
yuvImage.compressToJpeg(rect, 100, outputStream);
bitmap.set(BitmapFactory.decodeByteArray(outputStream.toByteArray(), 0, outputStream.size()));
} else if (imageFormat == ImageFormat.JPEG || imageFormat == ImageFormat.RGB_565) {
bitmap.set(BitmapFactory.decodeByteArray(data, 0, data.length));
}
}
}
);
mCamera.stopPreview();
mCamera.release();
return bitmap.get();
}
private int calculateBrightnessEstimate(Bitmap bitmap) {
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 += 5) {
int color = pixels[i];
R += Color.red(color);
G += Color.green(color);
B += Color.blue(color);
n++;
}
return (R + B + G) / (n * 3);
}
}

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android:viewportWidth="108"
android:viewportHeight="108">
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<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.CameraLightSensor" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_200</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/black</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_200</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="purple_200">#FFBB86FC</color>
<color name="purple_500">#FF6200EE</color>
<color name="purple_700">#FF3700B3</color>
<color name="teal_200">#FF03DAC5</color>
<color name="teal_700">#FF018786</color>
<color name="black">#FF000000</color>
<color name="white">#FFFFFFFF</color>
</resources>

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<resources>
<string name="app_name">CameraLightSensor</string>
</resources>

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<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.CameraLightSensor" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_500</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
</style>
</resources>