小编use*_*719的帖子

我正在尝试使用从前一个活动中检索的getIntent值(得分),但似乎这是不可能的.似乎在if下的加法和减法无法检测得分.还有其他方法吗？

package com.mkyong.android;

import com.mkyong.android.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;
import android.view.View;
import android.view.View.OnClickListener;

public class App2Activity extends Activity {

    private RadioGroup radioAnswerGroup2;
    private RadioButton radioAnswerButton2;
    private Button btnSubmit2;

    Button button2;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main2);
        addListenerOnButton();


    }

    public void addListenerOnButton() {

        final Context context = this;

        radioAnswerGroup2 = (RadioGroup) findViewById(R.id.radioAnswer2);


        button2 = (Button) findViewById(R.id.button2);
        Button button2pre = (Button) findViewById(R.id.button2pre);

        Intent intent = getIntent(); …