android 程式截圖功能

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 {

 
// 擷取指定Activity的截屏，儲存到png檔案
private static Bitmap takeScreenShot(Activity activity){

 
//View是你需要的View
View view = activity.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap b1 = view.getDrawingCache();

 
//擷取狀態列高度
Rect frame = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
int statusBarHeight = frame.top;
System.out.println(statusBarHeight);
 
//擷取螢幕長和高
 int width = activity.getWindowManager().getDefaultDisplay().getWidth();
int height = activity.getWindowManager().getDefaultDisplay().getHeight();

 
//去掉標題列
//Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);
Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height - statusBarHeight);

view.destroyDrawingCache();
return b;
}

 
//儲存到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();
}
 }

 
//程式入口
public static void shoot(Activity a){
ScreenShot.savePic(ScreenShot.takeScreenShot(a), "sdcard/xx.png");
}
}