Wie rufe ich Funktionen von Smart Contract von einem Android-Telefon aus auf?

Ich habe einen Smart Contract mit Solidität zusammen mit einer GUI von Javascript und HTML bereitgestellt. Dieses Projekt funktioniert gut auf meinem Computer.

Jetzt möchte ich Funktionen von Smart Contract vom Android-Telefon aus aufrufen.

Gibt es dazu eine Möglichkeit? Und wenn ja, wie geht das?

Und muss ich auch meinen Smart Contract mit schreiben Java? oder Solidityversion ist ok ?

Mein solider Smart-Contract-Code:

pragma solidity 0.4.23; 

contract RFID {

    struct StateStruct {
        bytes32 description;
        mapping(bytes32 => bytes32) sub_state;
    }

    struct ObjectStruct {
        StateStruct state;
        address owner; 
        bool isObject;

        bytes32 review;
    }

    mapping(bytes32 => ObjectStruct) objectStructs;
    bytes32[] public objectList;

    event LogNewObject(address sender, bytes32 indexed id, bytes32 sub_states_types, bytes32 sub_states_values, address owner);
    event LogChangeObjectState(address sender, bytes32 indexed id, bytes32 sub_states_types, bytes32 sub_states_values);
    event LogChangeObjectOwner(address sender, bytes32 indexed id, address newOwner);

    event LogNewObjectReview(address sender, bytes32 indexed _id, bytes32 _review,  address _owner);
    event LogChangeObjectStateReview(address sender, bytes32 indexed id, bytes32 _review);

    function isObject(bytes32 _id) public view returns(bool isIndeed) {
        return objectStructs[_id].isObject;
    }

    function getObjectCount() public view returns(uint count) {
        return objectList.length;
    }

    /*function setArraySize(uint256 _number_of_sub_states) public {

        number_of_sub_states = _number_of_sub_states;

    }

    function getArraySize() view public returns (uint256) {
       return number_of_sub_states;
    }*/

    function newObject(bytes32 _id, uint256 number_of_sub_states, bytes32[10] sub_states_types, bytes32[10] sub_states_values, address _owner) public returns(bool success) {
        require(!isObject(_id));

        uint256 counter=0;
        for(counter; counter < number_of_sub_states; counter++) {

            objectStructs[_id].state.sub_state[sub_states_types[counter]] = sub_states_values[counter];

            emit LogNewObject(msg.sender, _id, bytes32(sub_states_types[counter]), bytes32(sub_states_values[counter]), _owner);

        }

        objectStructs[_id].owner = _owner;
        objectStructs[_id].isObject = true;

        objectList.push(_id);

        return true;
    }

    function newObjectReview(bytes32 _id, bytes32 _review,  address _owner) public returns(bool success) {
        require(!isObject(_id));

        objectStructs[_id].owner = _owner;
        objectStructs[_id].isObject = true;

        objectStructs[_id].review = _review;

        emit LogNewObjectReview(msg.sender, _id, _review, _owner);

        objectList.push(_id);

        return true;
    }

    function changeObjectState(bytes32 _id, uint256 number_of_sub_states, bytes32[10] sub_states_types, bytes32[10] sub_states_values) public returns(bool success) {
        require(isObject(_id));
        uint256 counter=0;
        for(counter; counter < number_of_sub_states; counter++) {

            objectStructs[_id].state.sub_state[sub_states_types[counter]] = sub_states_values[counter];

            emit LogChangeObjectState(msg.sender, _id, bytes32(sub_states_types[counter]), bytes32(sub_states_values[counter]));

        }

        return true;
    }

    function changeObjectStateReview(bytes32 _id, bytes32 _review) public returns(bool success) {
        require(isObject(_id));

        objectStructs[_id].review = _review;

        emit LogChangeObjectStateReview(msg.sender, _id, _review);

        return true;
    }

    function changeObjectOwner(bytes32 _id, address _newOwner) public returns(bool success) {
        require(isObject(_id));
        objectStructs[_id].owner = _newOwner;
        emit LogChangeObjectOwner(msg.sender, _id, _newOwner);
        return true;
    }

}

Was ich tun möchte, ist, Funktionen meines Vertrags per Android-Telefon aufzurufen.

Hinweis : Ich habe mich angemeldet Infura, aber ehrlich gesagt weiß ich nicht , wie ich es auf meinem Android - Telefon verwenden soll , um Funktionen dieses Smart Contracts von meinem Android - Telefon aufzurufen ?