这code SD卡中创建文件夹，但不能保存图像该文件夹中

问题描述

这code创建SD卡的文件夹，但不能保存图像文件夹中我该怎么办？是显示图像defualt gellry我想保存的图像在我的myfolder23不是在默认gellry我是怎么做的？怎么我只保存相机拍摄的图像中的myfolder23不是默认的文件夹gellry？或默认gellery只删除保存在myfolder23???

 私人无效startDialog（）{
        AlertDialog.Builder myAlertDialog =新AlertDialog.Builder（本）;
        myAlertDialog.setTitle（上传的图片选项）;
        myAlertDialog.setMessage（你要设置你的照片吗？）;        myAlertDialog.setPositiveButton（画廊，新
  DialogInterface.OnClickListener（）{
            公共无效的onClick（DialogInterface为arg0，ARG1 INT）{
                pictureActionIntent =新意图（Intent.ACTION_GET_CONTENT，
     空值）;
                pictureActionIntent.setType（图像/ *）;
                pictureActionIntent.putExtra（回归数据，真正的）;
                startActivityForResult（pictureActionIntent，GALLERY_PICTURE）;
            }
        }）;        myAlertDialog.setNegativeButton（照相机，新
   DialogInterface.OnClickListener（）{
            公共无效的onClick（DialogInterface为arg0，ARG1 INT）{
                pictureActionIntent =新
    意图（android.provider.MediaStore.ACTION_IM​​AGE_CAPTURE）;
                字符串newFolder =/ myFolder23;
                。字符串extStorageDirectory = Environment.getExternalStorageDirectory（）的toString（）;
                档案文件=新的文件（extStorageDirectory + newFolder）;
                file.mkdir（）;
                乌里outputFileUri = Uri.fromFile（文件）;             pictureActionIntent.putExtra（MediaStore.EXTRA_OUTPUT，outputFileUri）;                startActivityForResult（pictureActionIntent，CAMERA_PICTURE）;
            }
        }）;
        myAlertDialog.show（）;
    }
 

解决方案

更改code作为存储SD卡上的文件：

 公共最后弦乐SDCARD_ROOT_PATH =
           Environment.getExternalStorageDirectory（）getAbsolutePath（）。
公共最后弦乐SAVE_PATH_IN_SDCARD =/ myFolder23 /;
公共最后弦乐IMAGE_CAPTURE_NAME
                            =imgtemp+ System.currentTimeMillis的（）+PNG;文件DIR =新的文件（Environment.getExternalStorageDirectory（）+/ myFolder23）;
如果（dir.exists（）及＆放大器; dir.isDirectory（））{
  //这里做什么
 }
其他{
    //创建目录这里
    dir.mkdir（）;
   }
 意图pictureActionIntent =新意图（MediaStore.ACTION_IM​​AGE_CAPTURE）;
 pictureActionIntent.putExtra（MediaStore.EXTRA_OUTPUT，Uri.fromFile（新
         文件（SDCARD_ROOT_PATH + SAVE_PATH_IN_SDCARD，IMAGE_CAPTURE_NAME）））;  startActivityForResult（pictureActionIntent，CAMERA_PICTURE）;
 

this code create folder in SD card but not save image in that folder how i do that? is show images in defualt gellry i want to save image in my "myfolder23" not in default gellry how i did that??? how i only save camera taken images in"myfolder23" not in default gellry folder? or delete from default gellery only save in "myfolder23"???

private void startDialog() {
        AlertDialog.Builder myAlertDialog = new AlertDialog.Builder(this);
        myAlertDialog.setTitle("Upload Pictures Option");
        myAlertDialog.setMessage("How do you want to set your picture?");

        myAlertDialog.setPositiveButton("Gallery", new
  DialogInterface.OnClickListener() {
            public void onClick(DialogInterface arg0, int arg1) {
                pictureActionIntent = new Intent(Intent.ACTION_GET_CONTENT,
     null);
                pictureActionIntent.setType("image/*");
                pictureActionIntent.putExtra("return-data", true);
                startActivityForResult(pictureActionIntent, GALLERY_PICTURE);
            }
        });

        myAlertDialog.setNegativeButton("Camera", new
   DialogInterface.OnClickListener() {
            public void onClick(DialogInterface arg0, int arg1) {
                pictureActionIntent = new
    Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);






                String newFolder = "/myFolder23";
                String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
                File file = new File(extStorageDirectory + newFolder);
                file.mkdir();




                Uri outputFileUri = Uri.fromFile(file);

             pictureActionIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);









                startActivityForResult(pictureActionIntent, CAMERA_PICTURE);
            }
        });
        myAlertDialog.show();
    }

解决方案

Change your code as for storing file on sdcard :

public final String SDCARD_ROOT_PATH =
           Environment.getExternalStorageDirectory().getAbsolutePath();
public final String SAVE_PATH_IN_SDCARD = "/myFolder23/";
public final String IMAGE_CAPTURE_NAME
                            ="imgtemp"+System.currentTimeMillis()+".png";

File dir = new File(Environment.getExternalStorageDirectory() + "/myFolder23");
if(dir.exists() && dir.isDirectory()) {
  // do something here
 }
else{
    //create dir here
    dir.mkdir();
   }
 Intent pictureActionIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);


 pictureActionIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new
         File(SDCARD_ROOT_PATH + SAVE_PATH_IN_SDCARD,IMAGE_CAPTURE_NAME)));

  startActivityForResult(pictureActionIntent,CAMERA_PICTURE);

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