安卓逆向学习-Crack01 学习记录

Crack01 学习记录

要感谢京峰教育！

资料下载：

利用jadx-gui打开

分析代码：

package com.zhy.editView;

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

public class Test1 extends Activity {
    String abc = "";
    private Button btn = null;
    private Button ctn = null;
    /* access modifiers changed from: private */
    public EditText exit = null;
    private TextView msg = null;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        this.msg = (TextView) findViewById(R.id.text);
        this.btn = (Button) findViewById(R.id.myButton);
        this.ctn = (Button) findViewById(R.id.yourButton);
        this.exit = (EditText) findViewById(R.id.edit);
        this.btn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Test1.this.operatecontext();
            }
        });
        this.ctn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Test1.this.exit.setText("");
            }
        });
    }

    /* access modifiers changed from: private */
    public void operatecontext() {
        this.abc = this.exit.getText().toString();
        if (checkansaw(this.abc) == 1) {
            this.msg.setText("恭喜你！答对了！");
        } else {
            this.msg.setText("很遗憾！答错了");
        }
    }

    private int checkansaw(String abc2) {
        if (abc2.equals(productanswer())) {
            return 1;
        }
        return 0;
    }

    private String productanswer() {
        return String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf("") + 'T') + 'h') + 'e') + 'a') + 'n') + 's') + 'w') + 'e') + 'r') + 'i') + 's') + 'n') + 'o') + 't') + 'h') + 'e') + 'r') + 'e';
    }
}

package test;

public class test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println(productanswer());
	}
    private static String productanswer() {
        return String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf(String.valueOf("") + 'T') + 'h') + 'e') + 'a') + 'n') + 's') + 'w') + 'e') + 'r') + 'i') + 's') + 'n') + 'o') + 't') + 'h') + 'e') + 'r') + 'e';
    }

}

Theanswerisnothere