求大神帮忙解决android中的编程问题

kison11131413 2012-03-01 11:30:45

package mobile.android.first;
import java.util.Random;
import android.graphics.Color;
import android.app.Activity;
import android.os.Bundle;
import mobile.android.first.CircleCanvas.CircleInfo;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
public class main extends Activity {

private CircleCanvas mCircleCanvas;
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
ViewGroup.viewGroup=(ViewGroup)getLayoutInflater().inflate(R.layout.main,null);
mCircleCanvas=new CircleCanvas(this);
viewGroup.addView(mCircleCanvas,new LayoutParams(LayoutParams.FILL_PARENT,350));
setContentView(viewGroup);
}
public void onClick_DrawRandomCircle(View view){
Random random=new Random();
float randomX=(float)(100+random.nextInt(100));
float randomY=(float)(100+random.nextInt(100));
float randomRadius=(float)(20+random.nextInt(40));
int randomColor=0;
if(random.nextInt(100)>50){
randomColor=Color.BLUE;
}else{
if(random.nextInt(100)<50){
randomColor=Color.RED;
}else{
randomColor=Color.GREEN;
}
CircleInfo circleInfo=new CircleInfo();
circleInfo.setX(randomX);
circleInfo.setY(randomY);
circleInfo.setRadius(randomRadius);
circleInfo.setColor(randomColor);
mCircleCanvas.mCircleInfos.add(circleInfo);
mCircleCanvas.invalidate();
}
}
public void onClick_Clear(View view){
mCircleCanvas.mCircleInfos.clear();
mCircleCanvas.invalidate();
}

}
报错内容:
此行的多个标记
- viewGroup cannot be resolved or is not
a field
- 行断点：main [行： 16] -
onCreate(Bundle)
- 无法解析 viewGroup，或者它不是字段
如何解决好啊？？？

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