本文来自:安卓航班网

        我们大家都在用电脑的时候,用过截屏的功能,有的时候截屏给我们带来了很多的方便,那么我们现在怎么样才能在android中实现这个功能那,下面我们就用代码来实现这个对我们很方便的功能。

java代码:

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.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;
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),
"sdcard/xx.png");
}
}

原文地址:http://www.apkway.com/forum.php?mod=viewthread&tid=3225&extra=page%3D1

 

posted on 2011-09-02 20:56  泉と緣  阅读(1162)  评论(0编辑  收藏  举报