prviDio

LottoTicketCreatorActivity.java

package hr.fer.ruazosa.hw3;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class LottoTicketCreatorActivity extends Activity {

    private EditText inputMinor;
    private EditText inputMajor;
    private String errMsg;
    private TextView result;

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

        errMsg = getResources().getString(R.string.calculator_input_error);

        result = (TextView) findViewById(R.id.creator_result);

        inputMinor = (EditText) findViewById(R.id.calculator_minor);
        inputMinor.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                String minor = inputMinor.getText().toString();
                if (isNotValidInput(minor)) {
                    inputMinor.setError(errMsg);
                }
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                String minor = inputMinor.getText().toString();
                if (isNotValidInput(minor)) {
                    inputMinor.setError(errMsg);
                }
            }

            @Override
            public void afterTextChanged(Editable s) {
                String minor = inputMinor.getText().toString();
                if (isNotValidInput(minor)) {
                    inputMinor.setError(errMsg);
                }
            }
        });

        inputMajor = (EditText) findViewById(R.id.calculator_major);
        inputMajor.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                String major = inputMajor.getText().toString();
                if (isNotValidInput(major)) {
                    inputMajor.setError(errMsg);
                }
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                String major = inputMajor.getText().toString();
                if (isNotValidInput(major)) {
                    inputMajor.setError(errMsg);
                }
            }

            @Override
            public void afterTextChanged(Editable s) {
                String major = inputMajor.getText().toString();
                if (isNotValidInput(major)) {
                    inputMajor.setError(errMsg);
                }
            }
        });



        Button submit = (Button) findViewById(R.id.creator_generate);
        submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String major = inputMajor.getText().toString();
                String minor = inputMinor.getText().toString();

                if (isNotValidInput(minor) || isNotValidInput(major)) {
                    if (isNotValidInput(major)) {
                        inputMajor.setError(errMsg);
                    } else {
                        inputMinor.setError(errMsg);
                    }
                    result.setText(R.string.calculator_result_error);

                } else if (Integer.parseInt(minor) >= Integer.parseInt(major)) {
                    result.setError(getResources().getString(R.string.calculator_result_error_minor_gt_major));
                } else if (minor.equals("6") && major.equals("45")) {
                    result.setText("1, 2, 3, 4, 5, 6");
                } else if (minor.equals("7") && major.equals("39")) {
                    result.setText("1, 2, 3, 4, 5, 6, 7");
                } else {
                    result.setText(R.string.calculator_result_error);
                }
            }
        });
    }

    private boolean isNotValidInput(String s) {
        return (s.equals("") || s.equals("0") || s.contains(".") || s.contains("-"));
    }
}