ups!

package com.ideaknow.proves;
 
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
 
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
 
public class ScreenCaptureActivity extends Activity {
    private View viewToBeCaptured;
    private Button button;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        button = (Button) findViewById(R.id.button1);
 
        viewToBeCaptured = this.findViewById(R.id.mainView);
        viewToBeCaptured.setDrawingCacheEnabled(true);
        viewToBeCaptured.buildDrawingCache();
 
        button.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View arg0) {
                Log.v("Saved", "Save screenshot?");
                saveFile();
            }
        });
    }
 
    public void saveFile(){
        Bitmap b = viewToBeCaptured.getDrawingCache();
        File sd = Environment.getExternalStorageDirectory();
        File f = new File(sd, "captureAndroid.png");
        try {
            if (sd.canWrite()) {
                Log.v("Saved", "Screenshot saved");
                f.createNewFile();
                OutputStream os = new FileOutputStream(f);
                b.compress(Bitmap.CompressFormat.PNG, 90, os);
                os.close();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        viewToBeCaptured.setDrawingCacheEnabled(false);
    }
}