如何上传带时间戳的照片作为名称？

我想创建此代码，我上传图片，并在上传图片时使用新的时间戳命名，如YYYYMMDDHHMMSS。如何创建此代码？谢谢:)如何上传带时间戳的照片作为名称？

下面是代码的片段：

public class MainActivity extends AppCompatActivity { 

private StorageReference mStorage; 
private static final int GALLERY_INTENT = 2; 
private ImageButton mCamera; 
private ImageButton mGallery; 
private ImageView mImageview; 
private static final int CAMERA_REQUEST_CODE = 1; 
private ImageButton mUpload; 




@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    mStorage = FirebaseStorage.getInstance().getReference(); 
    mGallery = (ImageButton) findViewById(R.id.UpGallery); 
    //mProgressDialog = new ProgressDialog(this); 
    //mProgressDialog1 = new ProgressDialog(this); 
    mUpload = (ImageButton) findViewById(R.id.UpImage); 

    mCamera = (ImageButton) findViewById(R.id.UpCamera); 
    mImageview = (ImageView) findViewById(R.id.imageView1); 
    mImageview.buildDrawingCache(); 
    mImageview.setDrawingCacheEnabled(true); 
    mImageview.buildDrawingCache(); 




    final String dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/picFolder/"; 
    File newdir = new File(dir); 
    newdir.mkdirs(); 


    mGallery.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent intent = new Intent(Intent.ACTION_PICK); 
      intent.setType("image/*"); 
      startActivityForResult(intent, GALLERY_INTENT); 
     } 
    }); 

    mCamera.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
      startActivityForResult(intent1, CAMERA_REQUEST_CODE); 
     } 
    }); 

    mUpload.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      final StorageReference storageRef = FirebaseStorage.getInstance().getReferenceFromUrl("gs://lastposted-14247.appspot.com"); 

      mImageview.setDrawingCacheEnabled(true); 
      mImageview.buildDrawingCache(); 
      Bitmap bitmap = mImageview .getDrawingCache(); 

      ByteArrayOutputStream baas = new ByteArrayOutputStream(); 
      bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baas); 

      byte[] data = baas.toByteArray(); 

      UploadTask uploadTask = storageRef.child("Photo").child("unique-id-image").putBytes(data); 

      uploadTask.addOnFailureListener(new OnFailureListener() { 
       @Override 
       public void onFailure(@NonNull Exception exception) { 
        Toast.makeText(MainActivity.this, "Picture upload failed", Toast.LENGTH_LONG).show(); 
       } 
      }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() { 
       @Override 
       public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) { 
        //String downloadUrl = taskSnapshot.getDownloadUrl(); 
        Toast.makeText(MainActivity.this, "Upload done", Toast.LENGTH_LONG).show(); 

       } 
      }); 


       } 

    }); 
}

来源

2017-05-31 Jessef

使用类似 -

String timeStamp = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss").format(new Date());

来源

2017-05-31 23:19:16

如何上传带时间戳的照片作为名称？

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