// 将得到sbmp写入文件
FileOutputStream m_fileOutPutStream = null;
String filepath = Environment.getExternalStorageDirectory() +File.separator + "tempPhoto1.png";
try
{
m_fileOutPutStream= new FileOutputStream(filepath);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
sbmp.compress(CompressFormat.PNG, 100, m_fileOutPutStream);
try
{
m_fileOutPutStream.flush();
m_fileOutPutStream.close();
}
catch (IOException e)
{
e.printStackTrace();
}
if(!compare2Image(obmp, sbmp))
{
Toast.makeText(this, "new picture", Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(this, "old picture", Toast.LENGTH_LONG).show();
}
}
break;
}
return false;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if((requestCode == 1) &&(resultCode ==RESULT_FIRST_USER + 2))
{
Bitmap ret_bitmap =data.getParcelableExtra("ret_bitmap");
iv_photo.setScaleType(ScaleType.FIT_XY);
iv_photo.setImageBitmap(ret_bitmap);
}
super.onActivityResult(requestCode,resultCode, data);
}
// 简单的比较两个图像是否一致
private boolean compare2Image(Bitmap bmp1,Bitmap bmp2)
{
int iteration = 0;
int width = bmp1.getWidth();
int height = bmp1.getHeight();
if(width != bmp2.getWidth()) return false;
if(height != bmp2.getHeight()) return false;
if(width < height)
{
iteration = width;
}
else
{
iteration = height;
}
for(int i = 0; i < iteration; ++i)
{
if(bmp1.getPixel(i, i) != bmp2.getPixel(i,i)) return false;
}
return true;
}
}