android 对当前Activity截屏

import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Rect;import android.util.Log;import android.view.View;public class ScreenShot {    // 获取指定Activity的截屏，保存到png文件    private static Bitmap takeScreenShot(Activity activity) {        // View是你需要截图的View        View view = activity.getWindow().getDecorView();        view.setDrawingCacheEnabled(true);        view.buildDrawingCache();        Bitmap b1 = view.getDrawingCache();        // 获取状态栏高度        Rect frame = new Rect();        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);        int statusBarHeight = frame.top;        Log.i("TAG", "" + statusBarHeight);        // 获取屏幕长和高        int width = activity.getWindowManager().getDefaultDisplay().getWidth();        int height = activity.getWindowManager().getDefaultDisplay()                .getHeight();        // 去掉标题栏        // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);        Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height                - statusBarHeight);        view.destroyDrawingCache();        return b;    }    // 保存到sdcard    private static void savePic(Bitmap b, String strFileName) {        FileOutputStream fos = null;        try {            fos = new FileOutputStream(strFileName);            if (null != fos) {                b.compress(Bitmap.CompressFormat.PNG, 90, fos);                fos.flush();                fos.close();            }        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }    // 程序入口    public static void shoot(Activity a) {        ScreenShot.savePic(ScreenShot.takeScreenShot(a), "sdcard/xx.png");    }}  需要注意的是，shoot方法只能在view已经被加载后方可调用。或者在    @Override    public void onWindowFocusChanged(boolean hasFocus) {        // TODO Auto-generated method stub        super.onWindowFocusChanged(hasFocus);        ScreenShot.shoot(this);    }中调用

转自：http://myhpu2008.iteye.com/blog/999779