Android实现截屏并保存操作功能

/** 
 * 获取和保存当前屏幕的截图 
 */ 
private void GetandSaveCurrentImage() 
{ 
 //1.构建Bitmap 
 WindowManager windowManager = getWindowManager(); 
 Display display = windowManager.getDefaultDisplay(); 
 int w = display.getWidth(); 
 int h = display.getHeight(); 
  
 Bitmap Bmp = Bitmap.createBitmap( w, h, Config.ARGB_8888 );  
  
 //2.获取屏幕 
 View decorview = this.getWindow().getDecorView();  
 decorview.setDrawingCacheEnabled(true);  
 Bmp = decorview.getDrawingCache();  
  
 String SavePath = getSDCardPath()+"/AndyDemo/ScreenImage"; 
 
 //3.保存Bitmap  
 try { 
  File path = new File(SavePath); 
  //文件 
  String filepath = SavePath + "/Screen_1.png"; 
  File file = new File(filepath); 
  if(!path.exists()){ 
   path.mkdirs(); 
  } 
  if (!file.exists()) { 
   file.createNewFile(); 
  } 
   
  FileOutputStream fos = null; 
  fos = new FileOutputStream(file); 
  if (null != fos) { 
   Bmp.compress(Bitmap.CompressFormat.PNG, 90, fos); 
   fos.flush(); 
   fos.close();  
    
   Toast.makeText(mContext, "截屏文件已保存至SDCard/AndyDemo/ScreenImage/下", Toast.LENGTH_LONG).show(); 
  } 
 
 } catch (Exception e) { 
  e.printStackTrace(); 
 } 
} 
 
 /** 
 * 获取SDCard的目录路径功能 
 * @return 
 */ 
private String getSDCardPath(){ 
 File sdcardDir = null; 
 //判断SDCard是否存在 
 boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED); 
 if(sdcardExist){ 
  sdcardDir = Environment.getExternalStorageDirectory(); 
 } 
 return sdcardDir.toString(); 
} 

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>