小编use*_*035的帖子

我有一个“Activity”类代码，我想将其复制到“Fragment”类中，但不知道 Fragment 结构，有人可以帮助我这样做吗？以下是我的两个课程：

MainActivity.java

public class MainActivity extends Activity {

    private String[] application = { "ABC", "DEF", "GHI", "HIJ" };                     
    private String[] device = { "ABC", "DEF", "GHI", "HIJ" }; 
    private RadioGroup radioGroup1;
    private RadioGroup radioGroup2;
    private RadioButton btn;
    private RadioButton btn2;
    private String text1;
    private String text2;
    RadioButton button1;
    RadioButton button2;
    Button selectall;

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

        checkButtonClick();
        drawRadiobuttons();

    }

    private void checkButtonClick() {

        Button myButton = (Button) findViewById(R.id.findSelected);
        myButton.setOnClickListener(new OnClickListener() {

            @Override
            public void …