我创建了一个Android应用程序，其中存储了parse.com上的用户名，电话，密码，经度和经度。当我点击提交按钮时，所有这些值都成功存储在parse.com上。这是代码
LoginSigupActivity.java
public void onClick(View arg0) {
usernametxt = username.getText().toString();
passcodetxt = passcode.getText().toString();
phonetxt = phone.getText().toString();
if (usernametxt.equals("") && passcodetxt.equals("")) {
Toast.makeText(getApplicationContext(),
"Please complete the sign up form",
Toast.LENGTH_LONG).show();
} else {
// Save new user data into Parse.com Data Storage
ParseUser user = new ParseUser();
user.setUsername(usernametxt);
user.setPassword(passcodetxt);
user.put("phone", phone.getText().toString());
user.put("passcode", passcode.getText().toString());
//user.put("profile_pic", "my profile pic");
// code to send the current latlong using parse.com
user.put("latitude", gpsTracker.getLatitude() + "");
user.put("longitude", gpsTracker.getLongitude() + "");
user.signUpInBackground(new SignUpCallback() {
public void done(ParseException e) {
if (e == null) {
Intent intent = new Intent(
LoginSignupActivity.this, Welcome.class);
startActivity(intent);
Toast.makeText(getApplicationContext(),
"Successfully Signed up !!!",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Sign up Error", Toast.LENGTH_LONG)
.show();
}
}
});
}
}
});
}
}
现在当第二个活动在这里打开时，我使用了图像视图，获取图像按钮和上传图像按钮。点击获取图像按钮图像在图像视图中正确获取但是当我尝试上传时它不上传。
以下是代码：
Welcome.java
selectImageButton = (Button) findViewById(R.id.selectImageButton);
// initlize gps tracker
gpsTracker = new GPSTracker(this);
String picturePath = PreferenceManager
.getDefaultSharedPreferences(this).getString("picturePath", "");
if (!picturePath.equals("")) {
ImageView imageView = (ImageView) findViewById(R.id.uploadImage);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
selectImageButton = (Button) findViewById(R.id.selectImageButton);
selectImageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
uploadButton = (Button) findViewById(R.id.uploadButton);
uploadButton.setOnClickListener(new View.OnClickListener() {
@SuppressWarnings("null")
@Override
public void onClick(View arg0) {
ParseUser user = new ParseUser();
Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
// Convert it to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// Compress image to lower quality scale 1 - 100
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] image = stream.toByteArray();
// Create the ParseFile
ParseFile file = new ParseFile("androidbegin.png", image);
// Upload the image into Parse Cloud
file.saveInBackground();
});*/
user.signUpInBackground(new SignUpCallback() {
public void done(ParseException e) {
if (e == null) {
Toast.makeText(getApplicationContext(),
"Successfully Signed up !!!",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Sign up Error", Toast.LENGTH_LONG).show();
}
}
});
}
});
// Retrieve current user from Parse.com
ParseUser currentUser = ParseUser.getCurrentUser();
// Convert currentUser into String
String struser = currentUser.getUsername().toString();
// Locate Button in welcome.xml
logout = (Button) findViewById(R.id.logout);
// Logout Button Click Listener
logout.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
Intent intent = new Intent(Welcome.this,
LoginSignupActivity.class);
startActivity(intent);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
// GET IMAGE PATH
imagePath = getPath(selectedImageUri);
// IMAGE NAME
imageName = imagePath.substring(imagePath.lastIndexOf("/"));
// Bitmap bitmap = BitmapFactory.decodeFile(imagePath);
//
// // DISPLAY IMAGE
// imageView.setImageBitmap(bitmap);
// imageLocationTextView.setText("File path :" + imagePath);
}
}
private String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
现在我想知道如何从parse.com上的库中上传所选图像。我的其他参数保存在解析上。我也很困惑，因为我从我的First活动上传了用户名，密码，lat，long和phone。但我在第二次活动中从画廊获得图像。
现在我想知道如何在parse.com（保存第一个活动参数）的同一个类中上传所选图像。用户是parse.com中的我的班级名称。
请帮助我。非常感谢。
答案 0 :(得分：0)
检查以下代码，您会明白
ParseObject ParseObj = new ParseObject ("YOUR_TABLE_NAME");
ParseFile file = new ParseFile("androidbegin.png", image);
ParseObj.put("profile_pic", file);
ParseObj.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException arg0) {
if (arg0 == null) {
Log.i("LOG_OUTPUT", "Data saved in sever");
} else {
Log.e("LOG_OUTPUT", "Data not saved in server");
}
}
});
file.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException arg0) {
try {
if (arg0 == null) {
Log.e("LOG_OUTPUT", "imageFile is saved");
} else {
Log.e("LOG_OUTPUT", "imageFile is not saved");
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
答案 1 :(得分：0)
这对我有用
imageView1.buildDrawingCache();
Bitmap bitmap =imageView1.getDrawingCache();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// Compress image to lower quality scale 1 -
// 100
bitmap.compress(Bitmap.CompressFormat.PNG,
100, stream);
byte[] image = stream.toByteArray();
// Create the ParseFile
ParseFile file = new ParseFile(
"Profile.png", image);
// file.getUrl();
// Upload the image into Parse Cloud
file.saveInBackground();
// Create a New Class called "ImageUpload"
// in Parse
final ParseObject imgupload = new ParseObject(
"ImageUpload");
// Create a column named "ImageName" and set
// the string
imgupload.put("ImageName",
"Profile Picture");
// Create a column named "ImageFile" and
// insert the image
imgupload.put("ImageFile", file);
// Create the class and the columns
imgupload.saveInBackground();
imgupload
.saveInBackground(new SaveCallback() {
@Override
public void done(
ParseException e) {
if (e == null) {
// Success!
String objectId = imgupload
.getObjectId();
Editor editor = sharedpref_objid
.edit();
editor.putString(
"objid",
objectId);
Toast.makeText(
getApplicationContext(),
objectId,
Toast.LENGTH_SHORT)
.show();
editor.commit();
} else {
// Failure!
}
}
});