Android 屏幕截图 代码

1、本文转自:http://www.cnblogs.com/pcstart/archive/2011/09/05/2167187.html

http://johnson008.blog.51cto.com/4000361/729440

public static BitmapgetViewBitmap(Viewv){
v.clearFocus(); //
v.setPressed( false ); //
// 能画缓存就返回false
boolean willNotCache = v.willNotCacheDrawing();
v.setWillNotCacheDrawing( false );
int color = v.getDrawingCacheBackgroundColor();
v.setDrawingCacheBackgroundColor( 0 );
if (color != 0 ){
v.destroyDrawingCache();
}
v.buildDrawingCache();
BitmapcacheBitmap = v.getDrawingCache();
if (cacheBitmap == null ){
// Log.e(TAG,"failedgetViewBitmap("+v+")",new
// RuntimeException());
return null ;
}
Bitmapbitmap = Bitmap.createBitmap(cacheBitmap);
// Restoretheview
v.destroyDrawingCache();
v.setWillNotCacheDrawing(willNotCache);
v.setDrawingCacheBackgroundColor(color);
return bitmap;
}

// 保存到sdcard
// savePic(getViewBitmap(v),"sdcard/xx.png");
private static void savePic(Bitmapb,StringstrFileName){
FileOutputStreamfos = null ;
try {
fos = new FileOutputStream(strFileName);
if ( null != fos){
b.compress(Bitmap.CompressFormat.PNG, 90 ,fos);
fos.flush();
fos.close();
}
} catch (FileNotFoundExceptione){
e.printStackTrace();
} catch (IOExceptione){
e.printStackTrace();
}

}

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"); 
} 
} 

File myDir=new File("/sdcard/saved_images");
  myDir.mkdirs();
  Random generator = new Random();
  int n = 10000;
  n = generator.nextInt(n);
  String fname = "Image-"+ n +".jpg";
  File file = new File (myDir, fname);
  if (file.exists ()) file.delete (); 
  try {
     FileOutputStream out = new FileOutputStream(file);
     finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
     out.flush();
     out.close();

  } catch (Exception e) {
     e.printStackTrace();
  }