Android 实现截图到相册

这是我的代码

public static String saveImageToAlbum1(Context context, String fileName, String path) {

Log.e("saveImageToAlbum1", "===保存到相册====");
try{
Log.e("saveImageToAlbum", "===保存到相册000====");
String sdcard = "mnt/sdcard";
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
sdcard = Environment.getExternalStorageDirectory().getPath();
}
String filePath = sdcard + "/DCIM/Camera/" + fileName;
Log.e("==============saveImageToAlbum0===============", filePath);
       File appDir