package matthew.datacollector;
import android.app.Activity;
import android.view.View;
import android.widget.TextView;
import android.widget.RadioGroup;
import android.widget.Toast;
import android.os.Bundle;
public class DataCollectorActivity extends Activity implements RadioGroup.OnCheckedChangeListener, View.OnClickListener {
private TextView tv;
private RadioGroup rg;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.tv = (TextView) findViewById(R.id.textView1);
this.rg = (RadioGroup) findViewById(R.id.radioGroup1);
rg.setOnClickListener(this);
}
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
this.tv.setText("lol");
Toast.makeText(this.getApplicationContext(), "hey", Toast.LENGTH_LONG).show();
}
@Override
public void onClick(View v) {
this.tv.setText("lol");
}
}
我不明白为什么这不起作用:/。我希望它能够设置textview的文本,你甚至可以看到我已经在吐司中进行调试。仍然没有,我已经尝试了没有@Overrides
答案 0 :(得分:6)
您忘了在RadioGroup上设置侦听器onCheckedChange:
rg.setOnCheckedChangeListener(this);