为什么我的活动无法上传相机拍摄的照片，因为它可以轻松上传从画廊中挑选的照片？
通过图库上传的图片可在服务器上获得，但在API命中后，服务器上找不到通过相机拍摄的文件（图片）。
打开服务器上的目录会为通过相机上传的文件显示“找不到文件”错误。
这是我的代码：
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.net.ConnectivityManager;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.content.FileProvider;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.AppCompatCheckBox;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import static com.app.engage.Interfaces.Keys.userDetails.*;
import com.app.engage.Interfaces.ApiResponse;
import com.app.engage.Interfaces.NetworkConnectivityListener;
import com.app.engage.R;
import com.app.engage.Utilities.ConnectionDetector;
import com.app.engage.Utilities.GetServerData;
import com.app.engage.Utilities.ImageOnlyOptionsDialog;
import com.app.engage.Utilities.ProgressDialog;
import com.app.engage.Utilities.RoleSectDialog;
import com.app.engage.Utilities.RoundCorner;
import com.app.engage.Utilities.SharedPreference_Main;
import com.app.engage.Utilities.Utilities;
import com.bumptech.glide.Glide;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import com.app.engage.Interfaces.OnButtonClicked;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class SignupActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener, ApiResponse.Api_hit, View.OnClickListener {
private TextView toolbarText;
public static TextView selections;
private ProgressDialog progressDialog;
private String selected_role = null;
private String selectedRole = "", selectedOrgType = "";
public static String selectedNatPriArea = "";
private ArrayList<String> role_list, org_type, nat_pri_area;
private ApiResponse apiResponse;
private ImageView dp;
private Uri uriFilePath;
private int REQUEST_CODE_CAMERA = 1002;
private int REQUEST_PICK_IMAGE = 1003;
private AlertDialog.Builder builder;
private TextView upload_dp;
private AppCompatCheckBox stayLoggedIn;
private Spinner roleSpinner, organisationTypeSpinner;
private Button signUp;
private SharedPreference_Main sharedPreference_main;
private String mCurrentPhotoPath;
// private Utilities utilities;
private TextView select_nat_pri_area;
private ConnectionDetector receiver;
private EditText fullName, email, orgName, password, reEnterPassword;
private File file = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_signup);
getWindow().setBackgroundDrawableResource(R.drawable.blurred_background); //setting background here
android.support.v7.widget.Toolbar toolbar = findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
ActionBar ab = getSupportActionBar();
role_list = new ArrayList<>(); //arraylist that will hold the roles coming from the server
org_type = new ArrayList<>();//arraylist that will hold the roles coming from the server
nat_pri_area = new ArrayList<>();
sharedPreference_main = new SharedPreference_Main(this);
ab.setDisplayHomeAsUpEnabled(true);
ab.setHomeAsUpIndicator(R.drawable.white_back_icon_for_toolbar);
toolbarText = findViewById(R.id.toolbarText);
select_nat_pri_area = findViewById(R.id.nat_pri_areaaa);
toolbarText.setText("Sign Up");
apiResponse = new ApiResponse(this);
roleSpinner = findViewById(R.id.select_role_spinner);
organisationTypeSpinner = findViewById(R.id.organisation_type_spinner);
fullName = findViewById(R.id.full_name_editText);
email = findViewById(R.id.email_editText_signUp);
password = findViewById(R.id.pass_edit_text);
reEnterPassword = findViewById(R.id.reEnterPword);
orgName = findViewById(R.id.org_edit_text);
selections = findViewById(R.id.selectionss);
signUp = findViewById(R.id.signUp_Button);
dp = findViewById(R.id.dp);
progressDialog = new ProgressDialog(this);
select_nat_pri_area.setOnClickListener(this);
upload_dp = findViewById(R.id.upload_dp);
dp.setOnClickListener(this);
selections.setOnClickListener(this);
upload_dp.setOnClickListener(this);
// utilities = new Utilities(this);
receiver = new ConnectionDetector(new NetworkConnectivityListener() {
@Override
public void onNetworkConnected() //if network connection is available
{
if (role_list.size() <= 0 || org_type.size() <= 0 || nat_pri_area.size() <= 0) {
getData();
}
}
@Override
public void onNetworkDisconnected() {
displayAlert();
}
}, this);
// sharedPreference_main = SharedPreference_Main.getInstance(this);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) //initialising the AlertDialogue builder
{
builder = new AlertDialog.Builder(this, android.R.style.Theme_Material_Dialog_Alert);
} else {
builder = new AlertDialog.Builder(this);
}
roleSpinner.setOnItemSelectedListener(this);
organisationTypeSpinner.setOnItemSelectedListener(org_type_selection);
dp.setOnClickListener(this);
upload_dp.setOnClickListener(this);
// natPriorityAreaSpinner.setAdapter(adapterSetter(priorityArea));
signUp.setOnClickListener(this);
}
private ArrayAdapter<String> adapterSetter(ArrayList<String> data) //to temporarily populate the spinners
{
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this, R.layout.custom_spinner, data);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
return adapter;
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(receiver);
}
@Override
protected void onResume() {
super.onResume();
IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(receiver, filter);
receiver.isNetworkAvailable();
//checkConnection();
}
public void signup() {
if (!validate()) { //if the conditions in the validate function are not met return
onSignupFailed();
Toast.makeText(this, "Something went wrong sign-up failed", Toast.LENGTH_SHORT).show();
return;
} else {
Toast.makeText(this, "signing up", Toast.LENGTH_SHORT).show();
// signUp.setEnabled(false);
progressDialog.progressDialogStart("Please Wait...");
try {
apiResponse.hitVolleyMultipartApi(this, "signup", getparams(), prof_pic, file);
} catch (Exception e) {
Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
// TODO: Implement your own signup logic here.'
// save();
}
public void onSignupSuccess() //if signup is successful
{
signUp.setEnabled(true);
setResult(RESULT_OK, null);
//Toast.makeText(this, "snkflsndkfl", Toast.LENGTH_SHORT).show();
Intent i = new Intent(this, HomeActivity.class);
//i.putExtra("Back Functionality", true);
startActivity(i);
finish();
}
public void onSignupFailed() {
Toast.makeText(getBaseContext(), "Signup failed", Toast.LENGTH_LONG).show();
signUp.setEnabled(true);
}
public boolean validate() //to check the entered information
{
boolean valid = true;
String name = fullName.getText().toString();
String mail = email.getText().toString();
String pword = password.getText().toString();
String org_Name = orgName.getText().toString();
String reEnterPword = reEnterPassword.getText().toString();
if (name.isEmpty() || name.length() < 3) {
fullName.setError("at least 3 characters", null);
valid = false;
} else {
fullName.setError(null);
}
if (mail.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(mail).matches()) {
email.setError("enter a valid email address", null);
valid = false;
} else {
email.setError(null);
}
if (org_Name.isEmpty()) {
orgName.setError("Please enter the organisation's name", null);
valid = false;
} else {
orgName.setError(null);
}
if (pword.isEmpty() || password.length() < 4 || password.length() > 10) {
password.setError("between 4 and 10 alphanumeric characters", null);
valid = false;
} else {
password.setError(null);
}
if (reEnterPword.isEmpty() || reEnterPassword.length() < 4 || reEnterPassword.length() > 10 || !(reEnterPword.equals(pword))) {
reEnterPassword.setError("Password Do not match", null);
valid = false;
} else {
reEnterPassword.setError(null);
}
return valid;
}
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
switch (i) {
case 0:
selectedRole = "Facilitator";
break;
case 1:
selectedRole = "Provider Administrator";
break;
case 2:
selectedRole = "Provider Executive";
break;
case 3:
selectedRole = "School PLD Administrator";
break;
case 4:
selectedRole = "MOE National Priority";
break;
case 5:
selectedRole = "Senior Leadership";
break;
case 6:
selectedRole = "Teacher";
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
AdapterView.OnItemSelectedListener org_type_selection = new AdapterView.OnItemSelectedListener() //for organisation type selection
{
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
switch (i) {
case 0:
selectedOrgType = "Education";
break;
case 1:
selectedOrgType = "IT";
break;
case 2:
selectedOrgType = "Medical";
break;
case 3:
selectedOrgType = "";
break;
case 4:
selectedOrgType = "";
break;
case 5:
selectedOrgType = "";
break;
case 6:
selectedOrgType = "";
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
};
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.dp:
case R.id.upload_dp:
ImageOnlyOptionsDialog imageOnlyOptionsDialog = new ImageOnlyOptionsDialog();
imageOnlyOptionsDialog.setonButtonClickListener(new OnButtonClicked() {
@Override
public void onButtonCLick(int buttonId) {
switch (buttonId) {
case R.id.btnCamera:
startCamera();
break;
case R.id.btnGallery:
pickFromGallery();
break;
default:
break;
}
}
});
imageOnlyOptionsDialog.show(getSupportFragmentManager(), ImageOnlyOptionsDialog.class.getSimpleName());
break;
case R.id.signUp_Button:
signup();
break;
case R.id.nat_pri_areaaa:
case R.id.selectionss:
Bundle data = new Bundle();
data.putStringArrayList("pri_areas", nat_pri_area);
RoleSectDialog roleSectDialog = new RoleSectDialog();
roleSectDialog.setArguments(data);
roleSectDialog.show(getSupportFragmentManager(), RoleSectDialog.class.getSimpleName());
roleSectDialog.setonButtonClickListener(new OnButtonClicked() {
@Override
public void onButtonCLick(int buttonId) {
switch (buttonId) {
case R.id.k:
break;
default:
break;
}
}
});
break;
default:
break;
}
}
public void startCamera() {
PackageManager packageManager = this.getPackageManager();
if (packageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA)) {
File mainDirectory = new File(Environment.getExternalStorageDirectory(), "MyFolder/tmp");
if (!mainDirectory.exists())
mainDirectory.mkdirs();
Calendar calendar = Calendar.getInstance();
uriFilePath = Uri.fromFile(new File(mainDirectory, "IMG_" + calendar.getTimeInMillis() + ".jpeg"));
Intent intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent1.putExtra(MediaStore.EXTRA_OUTPUT, uriFilePath);
startActivityForResult(intent1, REQUEST_CODE_CAMERA);
}
}
public void pickFromGallery() //this is the intent creation for picking image from gallery
{
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent, "Complete action using"), REQUEST_PICK_IMAGE);
}
public void onActivityResult(int requestCode, int resultCode, Intent data) //this receives the intent's result
{
if (requestCode == REQUEST_CODE_CAMERA) {
if (resultCode == RESULT_OK) {
try {
ExifInterface exif = new ExifInterface(uriFilePath.getPath());
int orientation = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
Matrix matrix = new Matrix();
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
matrix.postRotate(90);
break;
case ExifInterface.ORIENTATION_ROTATE_180:
matrix.postRotate(180);
break;
case ExifInterface.ORIENTATION_ROTATE_270:
matrix.postRotate(270);
break;
}
String filePath = getRealPathFromURI(uriFilePath);
file = new File(new URI("file://" + filePath.replace(" ", "%20")));//photo is file type that is global
Glide.with(this)
.load(file)
.placeholder(R.drawable.upload_image)
.into(dp);
// getImageDetails(photo);
} catch (Exception e) {
e.printStackTrace();
}
}
} else if (requestCode == REQUEST_PICK_IMAGE) {
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
String selectedImagePath = getRealPathFromURI(selectedImageUri);
Toast.makeText(this, selectedImagePath, Toast.LENGTH_SHORT).show();
try {
file = new File(new URI("file://" + selectedImagePath.replace(" ", "%20")));
Glide.with(this).load(file).placeholder(R.drawable.upload_image)
.into(dp);
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
}
}
public String getRealPathFromURI(Uri uri) {
if (uri == null) {
return null;
}
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor = this.getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
cursor.moveToFirst();
int column_index = cursor.getColumnIndex(projection[0]);
return cursor.getString(column_index);
}
return uri.getPath();
}
public HashMap<String, String> getparams() { //parameters passed while hitting the API
HashMap<String, String> params = new HashMap<>();
params.put(rulee, "sign_up");
params.put(emaill, email.getText().toString());
params.put(word, password.getText().toString());
params.put(f_name, fullName.getText().toString());
params.put(n_p_a, selections.getText().toString());
params.put(or_name, orgName.getText().toString());
params.put(or_type, selectedOrgType);
Toast.makeText(this, selectedRole, Toast.LENGTH_SHORT).show();
params.put(rolId, selectedRole);
return params;
}
@Override
public void response(String responseObject, String method_call) //this gets the response when API is hit
{
progressDialog.dismissDialog();
try {
JSONObject response = new JSONObject(responseObject);
if (response.getString("flag").equalsIgnoreCase("success")) {
JSONObject object = response.getJSONObject("response");
sharedPreference_main.setUserName(object.getString(f_name));
sharedPreference_main.setUserEmail(object.getString(emaill));
sharedPreference_main.setUserOrganisation(object.getString(or_name));
sharedPreference_main.setUserRole(object.getString(rol));
sharedPreference_main.setOrgType(object.getString(or_type));
sharedPreference_main.setNPA(object.getString(n_p_a));
sharedPreference_main.setUserProfilePic(object.getString(prof_pic));
onSignupSuccess(); //if everything works out call the home activity
} else if (response.getString("flag").equalsIgnoreCase("0")) {
String resp = response.getString("response");
builder.setTitle("Error:"); //building up the dialog
builder.setMessage(resp);
displayAlert(resp);
} else if (response.getString("flag").equalsIgnoreCase("1")) {
// Toast.makeText(this, response.getString("flag"), Toast.LENGTH_SHORT).show();
JSONArray data = response.getJSONArray("message");
if (data.length() > 0) {
for (int i = 0; i < data.length(); i++) {
JSONObject inData = data.getJSONObject(i);
if (inData.has("role_name")) {
role_list.add(inData.getString("role_name"));
} else if (inData.has("organisation_type")) {
org_type.add(inData.getString("organisation_type"));
} else if (inData.has("prior_name")) {
nat_pri_area.add(inData.getString("prior_name"));
}
// N_P_A.add(inData.getString("prior_name"));
}
}
if (role_list.size() > 0) {
// String[] role = role_list.toArray(new String[role_list.size()]);
roleSpinner.setAdapter(adapterSetter(role_list));
}
if (org_type != null) {
// String organisationType[] =org_type.toArray(new String[org_type.size()]);
organisationTypeSpinner.setAdapter(adapterSetter(org_type));
}
// String[] priorityArea = org_type.toArray(new String[org_type.size()]);
//
}
// onSignupSuccess();
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void error(String error) {
progressDialog.dismissDialog();
Toast.makeText(this, error, Toast.LENGTH_SHORT).show();
}
private void displayAlert(final String code) {
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
fullName.setText("");
email.setText("");
password.setText("");
orgName.setText("");
}
}).show();
}
private void displayAlert() //overloaded function
{
builder.setTitle("No internet connection");
builder.setTitle("Please switch on the internet");
builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
// checkConnection();
if (receiver.isNetworkAvailable()) {
dialogInterface.c**strong text**ancel();
} else {
displayAlert();
}
}
}).setNegativeButton("Exit", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
// checkConnection();
dialogInterface.cancel();
}
}).show();
}
public void getData() {
GetServerData getServerData = new GetServerData(this);
getServerData.getRoles();
}
}
注意： 语言版本 - Java 目标SDK -23
任何帮助都将不胜感激。
答案 0 :(得分：0)
在您的问题得到解决后使用此功能并进行upvote。
private File profilePic;
private Uri photoFileUri;
/**
* Method below will work for Camera Intent.
*/
private void clickPicture() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
try {
photoFile = AppUtils.getInstance().createImageFile(); // Create the File where the photo should go
outputFileUri = FileProvider.getUriForFile(SignUpActivity.this, getApplicationContext().getPackageName() + ".provider", photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(takePictureIntent, CAMERA_IMAGE_REQUEST);
} catch (IOException io) {
io.printStackTrace(); // Error occurred while creating the File
}
//outputFileUri = Uri.fromFile(photoFile);//At this Uri the image captured will get saved.
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
switch (requestCode) {
case AppConstants.MediaConstants.REQUEST_CAPTURE_IMAGE:
profilePic = new File(AppUtils.getInstance().getRealPathFromURI(photoFileUri, mActivity));
break;
}
}
}
直接在您的课程中使用以下方法
/**
* method to get real path from uri
*
* @param contentURI
* @param context
* @return
*/
public String getRealPathFromURI(Uri contentURI, Context context) {
String result;
Cursor cursor = context.getContentResolver().query(contentURI, null, null, null, null);
if (cursor == null) { // Source is Dropbox or other similar local file path
result = contentURI.getPath();
} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
result = cursor.getString(idx);
cursor.close();
}
return result;
}
在res目录中的文件夹名“xml”中创建“provide_paths.xml”文件并在其中添加代码
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-path
name="external_files"
path="." />
</paths>