InfoActivity.java

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package com.intel.realsense.camera;

import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.intel.realsense.librealsense.CameraInfo;
import com.intel.realsense.librealsense.Device;
import com.intel.realsense.librealsense.DeviceList;
import com.intel.realsense.librealsense.RsContext;

import java.util.Map;
import java.util.TreeMap;

public class InfoActivity extends AppCompatActivity {
    private static final String TAG = "librs camera info";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list_view);
    }

    @Override
    protected void onResume() {
        super.onResume();

        TextView message = findViewById(R.id.list_view_title);

        Map<CameraInfo,String> infoMap = new TreeMap<>();

        RsContext ctx = new RsContext();
        try(DeviceList devices = ctx.queryDevices()){
            if(devices.getDeviceCount() == 0){
                finish();
            }
            message.setText("Device info:");

            try(final Device device = devices.createDevice(0)){
                if(device == null){
                    Log.e(TAG, "failed to create device");
                    return;
                }
                for(CameraInfo ci : CameraInfo.values()){
                    if(device.supportsInfo(ci))
                        infoMap.put(ci, device.getInfo(ci));
                }
            }
        }

        final String[] info = new String[infoMap.size()];
        int i = 0;
        for(Map.Entry e : infoMap.entrySet()){
            info[i++] = e.getKey().toString() + ": " + e.getValue();
        }

        final ListView listview = findViewById(R.id.list_view);

        final ArrayAdapter adapter = new ArrayAdapter<>(this, R.layout.files_list_view, info);
        listview.setAdapter(adapter);
    }
}