rosjava / android_extras

Extra libraries and utilities (usually 3rd party) for android gingerbread and up.

RosJava

Metapackage for the official rosjava repositories.

See the rosjava_core readme for more details.

android_extras's Issues

NFC read and write libraries/tools

These would be very useful. There is some code currently floating around in the graveyard folder in android_remocons.

All sensors pr request

Can you look on my pr of All sensors app?
It an app that send data from phone sensors (camera, location, temperature, magnumeter, illumination gyro and etc) over ros.
very easy to put your phone on robot, and it will be your sensors of robot.

android_tutorial_cv_bridge_image sample dosen't show image

HI! I'm just begin to run the sample android_tutorial_cv_bridge_image and I got some problems.

I have already followed the tutorials to build the environment for rosjava.

Here I want to play a ROS bag file with topic /image_raw and run the app cv bridge image on my phone (Samsung Galaxy J7 Pro) to show the converted video stream.

All I have changed in the MainActivity.java is the topic name which is /camera/image/raw originally. Just like below:

@Override
public void onStart(ConnectedNode connectedNode) {
    this.node = connectedNode;
    final org.apache.commons.logging.Log log = node.getLog();
    imagePublisher = node.newPublisher("/image_converter/output_video/raw", Image._TYPE);
    imageSubscriber = node.newSubscriber("/image_raw", Image._TYPE);
    imageSubscriber.addMessageListener(new MessageListener<Image>() {
        @Override
        public void onNewMessage(Image message) {
            CvImage cvImage;
            try {
                cvImage = CvImage.toCvCopy(message, ImageEncodings.RGB8);
            } catch (Exception e) {
                log.error("cv_bridge exception: " + e.getMessage());
                return;
            }
            Log.i(TAG, Integer.toString(cvImage.image.cols()));
            Log.i(TAG, Integer.toString(cvImage.image.rows()));

            //make sure the picture is big enough for my circle.
            if (cvImage.image.rows() > 110 && cvImage.image.cols() > 110) {
                //place the circle in the middle of the picture with radius 100 and color red.
                Imgproc.circle(cvImage.image, new Point(cvImage.image.cols() / 2, cvImage.image.rows() / 2), 100, new Scalar(255, 0, 0));
            }

            cvImage.image = cvImage.image.t();
            Core.flip(cvImage.image, cvImage.image, 1);

            bmp = Bitmap.createBitmap(cvImage.image.cols(), cvImage.image.rows(), Bitmap.Config.ARGB_8888);
            Utils.matToBitmap(cvImage.image, bmp);
            runOnUiThread(displayImage);

            Core.flip(cvImage.image, cvImage.image, 1);
            cvImage.image = cvImage.image.t();

            try {
                imagePublisher.publish(cvImage.toImageMsg(imagePublisher.newMessage()));
            } catch (IOException e) {
                log.error("cv_bridge exception: " + e.getMessage());
            }
        }
    });
    Log.i(TAG, "called onStart");
}

I played the bag file in my host computer with ROS_IP setting to 192.168.x.x and my app can successfully connect to the address.

However the imageView still shows nothing and
Log.i(TAG, Integer.toString(cvImage.image.cols()));,
Log.i(TAG, Integer.toString(cvImage.image.rows()));
has no info output.

It seems that the MessageListener didn't work and no message is received.

Did I miss something? Hope there's someone can help me! Thanks!

Below is my gradle file:

• build.gradle(Module: android_extras.cv_bridge)

apply plugin: "com.android.library"

//noinspection GroovyAssignabilityCheck
dependencies {
    compile "org.ros.rosjava_core:rosjava:[0.3,0.4)"
    compile "org.ros.rosjava_messages:sensor_msgs:[1.12,1.13)"
    compile "com.github.rosjava.rosjava_extras:image:[0.3,0.4)"
    compile group: 'org.opencv', name: 'openCVLibrary', version: '3.4.0'
    compile "org.ros.rosjava_messages:std_msgs:[0.5.11,0.6)"
    compile "io.netty:netty:3.5.2.Final"
    compile 'org.ros.rosjava_messages:geometry_msgs:[1.12, 1.13)'
    compile 'org.ros.rosjava_messages:diagnostic_msgs:[1.12, 1.13)'
    compile 'org.ros.rosjava_bootstrap:message_generation:[0.3, 0.4)'
    compile "org.apache.commons:com.springsource.org.apache.commons.logging:[1.1.1,1.2)"
    compile "org.ros.rosjava_messages:sensor_msgs:[1.12, 1.13)"
}

android {
    defaultConfig {
        minSdkVersion 16
    }
}

• build.gradle(Module: android_extras.android_tutorial_cv_bridge_image)

apply plugin: 'com.android.application'

//noinspection GroovyAssignabilityCheck
dependencies {
    compile 'org.ros.android_core:android_core_components:[0.4,0.5)'
    compile project(":cv_bridge")
}

android {
    defaultConfig {
        minSdkVersion 16
        //noinspection OldTargetApi
        targetSdkVersion 28
    }
}

And the RQT graph:

when I run rostopic echo /image_converter/output_video/raw:

Rename gingerbread library to android_10_extras

Be consistent with android core.

No resource found

Trying to compile android_extras and I am getting various errors complaining about missing resources.
Here is one example:
"Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.Button.Borderless.Colored'."

@adamantivm Any ideas? Have you compiled android_extras?