화면을 캡쳐한후 sdcard에 저장하고 싶습니다..
그런데 동작이 되지않는데 뭐가 문제인지 찾을 수가 없습니다 ㅠㅠ
조언좀 해주세여!!!

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;

public class Browsertest2Activity extends Activity {
        LinearLayout view;
 
        @Override
 
        protected void onCreate(Bundle savedInstanceState) {
 
                super.onCreate(savedInstanceState);
 
                setContentView(R.layout.main);
                  view = (LinearLayout)findViewById(R.id.screen);
 
                Button myBtn = (Button)findViewById(R.id.myBtn);
 
                myBtn.setOnClickListener(new View.OnClickListener(){
 
                        @Override
 
                        public void onClick(View v) {
                                              View v1 = view.getRootView();
 
                                System.out.println("Root View : "+v1);
 
                                v1.setDrawingCacheEnabled(true); //캡쳐할수 있도록 권한 설정
 
                                v1.getRootView().buildDrawingCache(); //화면 캡쳐해서 비트맵으로 가져오는 부분
                               
                                Bitmap bm = v1.getRootView().getDrawingCache();
 
                                System.out.println("Bitmap : "+bm);
 
                                try{
                                 FileOutputStream out = new FileOutputStream("/sdcard/captureScree.png");
                                 bm.compress(Bitmap.CompressFormat.PNG,100,out);
                                }catch(FileNotFoundException e) {
                                 Log.d("FileNotFoundExeption:",e.getMessage());
                                                              
                                }
                         }
                 });
        } 
}