设计一个安卓计算器，实现基本加减乘除，开方，平方，倒数运算，阶乘运算，求任意底的对数运算，任意数的N次方运算，正弦，余弦，正切，余切运算实现代码

好的，下面是一个简单的安卓计算器的实现代码，包括基本的加减乘除、开方、平方、倒数、阶乘、对数、幂、正弦、余弦、正切和余切等运算：

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    
    private TextView display;
    private Button btn0, btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9;
    private Button btnAdd, btnSub, btnMul, btnDiv, btnEqu, btnDot, btnClr;
    private Button btnSqrt, btnSqr, btnRec, btnFac, btnLog, btnPow, btnSin, btnCos, btnTan, btnCot;
    private double num1, num2, result;
    private String operator;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        display = findViewById(R.id.display);
        btn0 = findViewById(R.id.btn0);
        btn1 = findViewById(R.id.btn1);
        btn2 = findViewById(R.id.btn2);
        btn3 = findViewById(R.id.btn3);
        btn4 = findViewById(R.id.btn4);
        btn5 = findViewById(R.id.btn5);
        btn6 = findViewById(R.id.btn6);
        btn7 = findViewById(R.id.btn7);
        btn8 = findViewById(R.id.btn8);
        btn9 = findViewById(R.id.btn9);
        btnAdd = findViewById(R.id.btnAdd);
        btnSub = findViewById(R.id.btnSub);
        btnMul = findViewById(R.id.btnMul);
        btnDiv = findViewById(R.id.btnDiv);
        btnEqu = findViewById(R.id.btnEqu);
        btnDot = findViewById(R.id.btnDot);
        btnClr = findViewById(R.id.btnClr);
        btnSqrt = findViewById(R.id.btnSqrt);
        btnSqr = findViewById(R.id.btnSqr);
        btnRec = findViewById(R.id.btnRec);
        btnFac = findViewById(R.id.btnFac);
        btnLog = findViewById(R.id.btnLog);
        btnPow = findViewById(R.id.btnPow);
        btnSin = findViewById(R.id.btnSin);
        btnCos = findViewById(R.id.btnCos);
        btnTan = findViewById(R.id.btnTan);
        btnCot = findViewById(R.id.btnCot);
        
        btn0.setOnClickListener(this);
        btn1.setOnClickListener(this);
        btn2.setOnClickListener(this);
        btn3.setOnClickListener(this);
        btn4.setOnClickListener(this);
        btn5.setOnClickListener(this);
        btn6.setOnClickListener(this);
        btn7.setOnClickListener(this);
        btn8.setOnClickListener(this);
        btn9.setOnClickListener(this);
        btnAdd.setOnClickListener(this);
        btnSub.setOnClickListener(this);
        btnMul.setOnClickListener(this);
        btnDiv.setOnClickListener(this);
        btnEqu.setOnClickListener(this);
        btnDot.setOnClickListener(this);
        btnClr.setOnClickListener(this);
        btnSqrt.setOnClickListener(this);
        btnSqr.setOnClickListener(this);
        btnRec.setOnClickListener(this);
        btnFac.setOnClickListener(this);
        btnLog.setOnClickListener(this);
        btnPow.setOnClickListener(this);
        btnSin.setOnClickListener(this);
        btnCos.setOnClickListener(this);
        btnTan.setOnClickListener(this);
        btnCot.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        String str = display.getText().toString();
        switch (v.getId()) {
            case R.id.btn0:
                display.setText(str + "0");
                break;
            case R.id.btn1:
                display.setText(str + "1");
                break;
            case R.id.btn2:
                display.setText(str + "2");
                break;
            case R.id.btn3:
                display.setText(str + "3");
                break;
            case R.id.btn4:
                display.setText(str + "4");
                break;
            case R.id.btn5:
                display.setText(str + "5");
                break;
            case R.id.btn6:
                display.setText(str + "6");
                break;
            case R.id.btn7:
                display.setText(str + "7");
                break;
            case R.id.btn8:
                display.setText(str + "8");
                break;
            case R.id.btn9:
                display.setText(str + "9");
                break;
            case R.id.btnAdd:
                num1 = Double.parseDouble(str);
                operator = "+";
                display.setText("");
                break;
            case R.id.btnSub:
                num1 = Double.parseDouble(str);
                operator = "-";
                display.setText("");
                break;
            case R.id.btnMul:
                num1 = Double.parseDouble(str);
                operator = "*";
                display.setText("");
                break;
            case R.id.btnDiv:
                num1 = Double.parseDouble(str);
                operator = "/";
                display.setText("");
                break;
            case R.id.btnEqu:
                num2 = Double.parseDouble(str);
                switch (operator) {
                    case "+":
                        result = num1 + num2;
                        break;
                    case "-":
                        result = num1 - num2;
                        break;
                    case "*":
                        result = num1 * num2;
                        break;
                    case "/":
                        result = num1 / num2;
                        break;
                }
                display.setText(String.valueOf(result));
                break;
            case R.id.btnDot:
                if (!str.contains(".")) {
                    display.setText(str + ".");
                }
                break;
            case R.id.btnClr:
                display.setText("");
                break;
            case R.id.btnSqrt:
                num1 = Double.parseDouble(str);
                result = Math.sqrt(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnSqr:
                num1 = Double.parseDouble(str);
                result = num1 * num1;
                display.setText(String.valueOf(result));
                break;
            case R.id.btnRec:
                num1 = Double.parseDouble(str);
                result = 1 / num1;
                display.setText(String.valueOf(result));
                break;
            case R.id.btnFac:
                num1 = Double.parseDouble(str);
                result = factorial(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnLog:
                num1 = Double.parseDouble(str);
                result = Math.log10(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnPow:
                num1 = Double.parseDouble(str);
                operator = "^";
                display.setText("");
                break;
            case R.id.btnSin:
                num1 = Double.parseDouble(str);
                result = Math.sin(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnCos:
                num1 = Double.parseDouble(str);
                result = Math.cos(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnTan:
                num1 = Double.parseDouble(str);
                result = Math.tan(num1);
                display.setText(String.valueOf(result));
                break;
            case R.id.btnCot:
                num1 = Double.parseDouble(str);
                result = 1 / Math.tan(num1);
                display.setText(String.valueOf(result));
                break;
        }
    }

    private double factorial(double n) {
        if (n == 0) {
            return 1;
        } else {
            return n * factorial(n - 1);
        }
    }
}

需要在布局文件中添加对应的控件，并设置相应的ID和属性。上面的代码实现了基本的计算器功能，可以根据需要进行扩展和优化。