Pixoo: Quick hack to "install" any image on the pixoo

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/divoom/PixooCoordinator.java

@@ -16,6 +16,9 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.divoom;
 
+import android.content.Context;
+import android.net.Uri;
+
 import androidx.annotation.NonNull;
 
 import java.util.regex.Pattern;
@@ -23,6 +26,7 @@ import java.util.regex.Pattern;
 import nodomain.freeyourgadget.gadgetbridge.GBException;
 import nodomain.freeyourgadget.gadgetbridge.R;
 import nodomain.freeyourgadget.gadgetbridge.devices.AbstractBLEDeviceCoordinator;
+import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
 import nodomain.freeyourgadget.gadgetbridge.entities.DaoSession;
 import nodomain.freeyourgadget.gadgetbridge.entities.Device;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
@@ -51,6 +55,11 @@ public class PixooCoordinator extends AbstractBLEDeviceCoordinator {
         return PixooSupport.class;
     }
 
+    @Override
+    public InstallHandler findInstallHandler(final Uri uri, final Context context) {
+        PixooInstallHandler installHandler = new PixooInstallHandler(uri, context);
+        return installHandler.isValid() ? installHandler : null;
+    }
     @Override
     public int getDeviceNameResource() {
         return R.string.devicetype_pixoo;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/divoom/PixooInstallHandler.java

@@ -0,0 +1,50 @@
+/*  Copyright (C) 2023 Andreas Shimokawa
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+package nodomain.freeyourgadget.gadgetbridge.devices.divoom;
+
+import android.content.Context;
+import android.net.Uri;
+
+import nodomain.freeyourgadget.gadgetbridge.activities.InstallActivity;
+import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
+import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
+
+public class PixooInstallHandler implements InstallHandler {
+    private final Context mContext;
+    private final Uri mUri;
+
+    public PixooInstallHandler(Uri uri, Context context) {
+        mContext = context;
+        mUri = uri;
+    }
+
+    @Override
+    public boolean isValid() {
+        return true;
+    }
+
+    @Override
+    public void validateInstallation(InstallActivity installActivity, GBDevice device) {
+        installActivity.setInstallEnabled(true);
+    }
+
+    @Override
+    public void onStartInstall(GBDevice device) {
+
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/divoom/PixooIOThread.java

@@ -21,6 +21,7 @@ import static nodomain.freeyourgadget.gadgetbridge.util.GB.hexdump;
 
 import android.bluetooth.BluetoothAdapter;
 import android.content.Context;
+import android.net.Uri;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -58,5 +59,4 @@ public class PixooIOThread extends BtClassicIoThread {
         LOG.debug("read " + bytes + " bytes. " + hexdump(buffer, 0, bytes));
         return Arrays.copyOf(buffer, bytes);
     }
-
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/divoom/PixooProtocol.java

@@ -23,6 +23,8 @@ import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.provider.MediaStore;
 
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
@@ -30,6 +32,7 @@ import org.apache.commons.lang3.ArrayUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.ArrayList;
@@ -348,10 +351,25 @@ public class PixooProtocol extends GBDeviceProtocol {
             return null;
         }
         final Bitmap bmp = BitmapUtil.toBitmap(icon);
+
+        return encodeShowFrame(bmp);
+    }
+
+    protected byte[] encodeShowFrame(Uri uri) {
+        try {
+            Bitmap bitmap = MediaStore.Images.Media.getBitmap(GBApplication.getContext().getContentResolver(), uri);
+            return encodeShowFrame(bitmap);
+        } catch (IOException e) {
+            LOG.error("could not decode Image",e);
+        }
+        return null;
+    }
+
+    private byte[] encodeShowFrame(Bitmap bitmap) {
         final Bitmap bmpResized = Bitmap.createBitmap(16, 16, Bitmap.Config.ARGB_8888);
         final Canvas canvas = new Canvas(bmpResized);
         final Rect rect = new Rect(0, 0, 16, 16);
-        canvas.drawBitmap(bmp, null, rect, null);
+        canvas.drawBitmap(bitmap, null, rect, null);
 
 
         // construct palette with unique colors

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/divoom/PixooSupport.java

@@ -17,6 +17,8 @@
 
 package nodomain.freeyourgadget.gadgetbridge.service.devices.divoom;
 
+import android.net.Uri;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -54,6 +56,11 @@ public class PixooSupport extends AbstractSerialDeviceSupport {
         return new PixooProtocol(getDevice());
     }
 
+    @Override
+    public void onInstallApp(Uri uri) {
+        getDeviceIOThread().write(((PixooProtocol) getDeviceProtocol()).encodeShowFrame(uri));
+    }
+
     @Override
     protected GBDeviceIoThread createDeviceIOThread() {
         return new PixooIOThread(getDevice(), getContext(), (PixooProtocol) getDeviceProtocol(),