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package helloworld.test;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class HelloWorldActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView tv=new TextView(this);
tv.setText("大家好"); //原来是 tv.setText("hello,world!");
setContentView(R.layout.main);
}
}
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv=(TextView)findviewbyid(R.id.xxx)
tv.setText("大家好");
}