android截取银屏图

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.os.Environment;import android.view.View;//获取指定Activity的截屏，保存到png文件public class ScreenShot {		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;		System.out.println(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), Environment.getExternalStorageDirectory()+"/xx.png");	}}

?来源于网络