我试图使用集成默认库的应用程序设置为墙纸的选择，我不知道如何使用意图的图像发送到画廊。我附上FB应用如何样的样子。

 字符串的root = Environment.getExternalStorageDirectory（）的toString（）。                    新的文件（根+/+ Constants1.APPNAME）.mkdirs（）;                    文件fil​​eForImage =新的文件（根+/\"+Constants1.APPNAME，POS +.JPG）;                    如果（fileForImage.exists（））fileForImage.delete（）;                    尝试{                        FileOutputStream中出=新的FileOutputStream（fileForImage）;                        arg0.com preSS（Bitmap.Com pressFormat.PNG，100，出）;                        Toast.makeText（getApplicationContext（），图像保存到+ Constants1.APPNAME +文件夹，Toast.LENGTH_SHORT）.show（）;                        了out.flush（）;                        out.close（）;                    }赶上（例外五）{                        e.printStackTrace（）;                    }                    意图emailIntent =新意图（Intent.ACTION_ATTACH）;                    emailIntent.setType（图像/ PNG）;                    emailIntent.putExtra（Intent.EXTRA_STREAM，Uri.fromFile（fileForImage））;                    startActivityForResult（Intent.createChooser（emailIntent，POS +。JPG），0）; 

的问题是，图像不传递给像册..

 意图emailIntent =新意图（Intent.ACTION_ATTACH_DATA）;                        emailIntent.setDataAndType（Uri.fromFile（fileForImage），图像/ *）;                        //emailIntent.putExtra(Intent.EXTRA_STREAM，Uri.fromFile（fileForImage））;                        startActivity（emailIntent）;                        Toast.makeText（getApplicationContext（），图像保存到+ Constants1.APPNAME +文件夹，Toast.LENGTH_SHORT）.show（）; 

i was trying to integrate set as wallpaper option using default gallery app, I don't know how to send the image to gallery using intent. I am attaching fb app samples how its look like.

 String root = Environment.getExternalStorageDirectory().toString();
                    new File(root + "/"+Constants1.APPNAME).mkdirs();


                    File fileForImage = new File(root + "/"+Constants1.APPNAME, pos  + ".jpg");
                    if (fileForImage.exists()) fileForImage.delete(); 
                    try {
                        FileOutputStream out = new FileOutputStream(fileForImage);
                        arg0.compress(Bitmap.CompressFormat.PNG, 100, out);
                        Toast.makeText(getApplicationContext(), "Image is saved to "+Constants1.APPNAME+" folder", Toast.LENGTH_SHORT).show();
                        out.flush();
                        out.close();

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    Intent emailIntent = new Intent(Intent.ACTION_ATTACH);
                    emailIntent.setType("image/png");
                    emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(fileForImage));
                    startActivityForResult(Intent.createChooser(emailIntent, pos+".jpg"),0);

The problem is that the image is not passing to the gallery..

     Intent emailIntent = new Intent(Intent.ACTION_ATTACH_DATA);
                        emailIntent.setDataAndType(Uri.fromFile(fileForImage), "image/*");
                        //emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(fileForImage));
                        startActivity(emailIntent);
                        Toast.makeText(getApplicationContext(), "Image is saved to "+Constants1.APPNAME+" folder", Toast.LENGTH_SHORT).show();