public class RadioGroup extends Activity {
/** Called when the activity is first created. */
private RadioGroup rg = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
rg = (RadioGroup)findViewById(R.id.radioGroup1);//这句出错
}
}
/** Called when the activity is first created. */
private RadioGroup rg = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
rg = (RadioGroup)findViewById(R.id.radioGroup1);//这句出错
}
}
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RadioGroup被你定义成个Activity类了,不是android.widget.RadioGroup控件鸟