Package com example lesson3; import android graphics. Color

package com.example.lesson3;

import android.graphics.Color;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import java.util.ArrayList;

import java.util.Collections;

public class MainActivity extends AppCompatActivity {

int emptyI = 2;

int emptyJ = 2;

private TextView timeShow, stepShow;

private Button stop, reStart;

private ViewGroup btnsGroup;

private Button[][] btns = new Button[3][3];

private ArrayList numbers = new ArrayList<>();

int steps = 0;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

loadViews();

loadDataToView();

stop.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

finish();

}

});

// getTags();

}

private void getTags() {

for (int i = 0; i < btnsGroup.getChildCount(); i++) {

if (btnsGroup.getChildAt(i) instanceof Button) {

btns[i / 3][i % 3] = (Button) btnsGroup.getChildAt(i);

Log.i("TTTT", btns[i / 3][i % 3].getTag().toString());

}

}

}

private void loadViews() {

loadNumbers();

timeShow = findViewById(R.id.time_show);

stepShow = findViewById(R.id.step_show);

stop = findViewById(R.id.stop);

reStart = findViewById(R.id.restart);

btnsGroup = findViewById(R.id.btns_group);

for (int i = 0; i < btnsGroup.getChildCount(); i++) {

if (btnsGroup.getChildAt(i) instanceof Button) {

btns[i / 3][i % 3] = (Button) btnsGroup.getChildAt(i);

btns[i / 3][i % 3].setTag(i / 3 + "" + i % 3);

}

}

}

private void loadNumbers() {

numbers.clear();

for (int i = 1; i < 9; i++) {

numbers.add(i);

}

Collections.shuffle(numbers);

}

private void loadDataToView() {

for (int i = 0; i < btnsGroup.getChildCount() - 1; i++) {

if (btnsGroup.getChildAt(i) instanceof Button) {

btns[i / 3][i % 3].setText(String.valueOf(numbers.get(i)));

}

}

stepShow.setText(String.valueOf(steps));

}

public void ButtonClick(View view) {

Button button = (Button) view;

int i = Integer.parseInt(String.valueOf(String.valueOf(button.getTag()).charAt(0)));

int j = Integer.parseInt(String.valueOf(String.valueOf(button.getTag()).charAt(1)));

Log.i("TTTT", "ButtonClick: i="+i+" j="+j);

if ((i == emptyI && Math.abs(j - emptyJ) == 1) || (j == emptyJ && Math.abs(i - emptyI) == 1)) {

Log.i("TTTT", "True");

btns[emptyI][emptyJ].setText(button.getText());

btns[emptyI][emptyJ].setBackgroundColor(Color.parseColor("#03A9F4"));

button.setText("");

button.setBackgroundColor(Color.parseColor("#0003A9F4"));

emptyI = i;

emptyJ = j;

steps++;

stepShow.setText(String.valueOf(steps));

}

}

}