如何從圖像庫中獲取所選圖像的名稱 android studio

Question

我有一個應用程序，在通過 facebook（通過應用程序按鈕）注冊后重定向到用戶配置文件視圖，其中 facebook 用戶配置文件圖像、名稱和 Z0C833F57C786A0B4A39EFAB23731C7EBCZ 被加載。 user (url) is stored in a sqlite database, I also have a button with which you can change the profile image for an image from the external memory of the smartphone, after selecting the image, its uri overwrites the url of the facebook profile image . 當我將 facebook 配置文件圖像更改為圖像庫中的一個（完美加載）然后我關閉 session 時，出現問題，當我登錄時它繼續向我顯示 Z26CAE7718C32180A7A0F8E19 庫中的一個選擇。 我有一點懷疑，使用接下來將顯示的代碼，我沒有到達存儲所選圖像的路徑，因為當我打印路徑時，它給了我一個奇怪的值，根據我的 e 模擬器，圖像存儲在：/storage/emulated/0/DCIM/Camera/image.jpg。 如果我能得到圖像的名稱，我確信我可以將圖像正確地保存在數據庫中，然后在登錄時讀取它。 我在下面留下我的代碼：

perfil_user extends Fragment  {
    GoogleSignInClient mGoogleSignInClient;
    ImageView image_user,image_ok,image_edit;
    TextView name_user,email,tag_date;
    EditText alias;
    Button buttonSelectImage,buttonChangeAlias;
    public String name,facebook_firstname,facebook_lastname,email_facebook,facebook_user_name,str_datefb,str_datejoinedfb,last_season,string_Uri_gmail ;
    public String date_now,date_joined,last_date,alias_facebook,alias_perfil,get_alias,request_date,alias_perfil_gmail,personGivenName,personFamilyName,personName,personEmail,str_dategmail,str_datejoinedgmail,alias_name,compare_username,alias_gmail;
    private static int RESULT_LOAD_IMAGE = 1;
    public static String name_aux,alias_aux;
    public boolean click;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.perfil_user,container,false);
        image_user=view.findViewById(R.id.image_user);
        name_user=view.findViewById(R.id.NameUser);
        email=view.findViewById(R.id.setmail);
        alias=view.findViewById(R.id.setAlias);
        buttonSelectImage=view.findViewById(R.id.change_image);
        buttonChangeAlias = view.findViewById(R.id.change_alias);
        tag_date=view.findViewById(R.id.last_season_date);
        DateTimeFormatter datetime_formatter = DateTimeFormatter.ofPattern("HH:mm:ss dd/MM/YYYY");
        LocalDateTime now = LocalDateTime.now();
        date_now = datetime_formatter.format(now);
        ConexionSQliteHelper conn=new ConexionSQliteHelper(getContext(),"lala",null,1);
        buttonSelectImage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(intent,3);


            }
        })
        
        if ( accessToken != null && !accessToken.isExpired()){
            GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
                        @Override
                        public void onCompleted(JSONObject object, GraphResponse response) {
                            try {
                                facebook_firstname=object.getString("first_name");
                                facebook_lastname =object.getString("last_name");
                                facebook_user_name=object.getString("name");
                                email_facebook = object.getString("email");
                                
                                String url_perfil_facebook=object.getJSONObject("picture").getJSONObject("data").getString("url");
                                if (url_perfil_facebook.equals("")){
                                    url_perfil_facebook = "https://cdn.computerhoy.com/sites/navi.axelspringer.es/public/styles/1200/public/media/image/2017/08/252649-modo-incognito-no-es-seguro-ni-privado.jpg";
                                }
                                else{
                                    //pass
                                }
                                Picasso.get().load(url_perfil_facebook).into(image_user);
                                name_user.setText(facebook_user_name);
                                email.setText(email_facebook);
                                str_datefb = date_now;
                                str_datejoinedfb = date_now;
                                tag_date.setText(str_datefb);
                                boolean exist_user = conn.verifyIfUserExists(email_facebook);
                                if (exist_user) {
                                    String url_photo = conn.loadImage(facebook_user_name);
                                    Uri myUri = Uri.parse(url_photo);
                                    image_user.setImageURI(myUri);
                                    alias_perfil = conn.getUserName(email_facebook);
                                    alias_facebook = conn.requestAlias(alias_perfil);
                                    alias.setText(alias_facebook);
                                    String last_season =  conn.getLastDateofConnection(facebook_user_name);
                                    tag_date.setText(last_season);
                                    conn.overwriteDate(date_now,facebook_user_name);
                                    String last_season_2 =  conn.getLastDateofConnection(facebook_user_name);
                                    //Toast.makeText(getContext(), "La nueva fecha es"+last_season_2, Toast.LENGTH_SHORT).show();
                                }

                                else {
                                    alias_name= generateAliasRandom();
                                    conn.insertUser(facebook_user_name,facebook_firstname,facebook_lastname,str_datefb,str_datejoinedfb,alias_name,email_facebook,null,url_perfil_facebook);
                                }
                                name_aux = name_user.getText().toString();
                                alias_aux = alias.getText().toString();



                            } catch (JSONException  e) {
                                e.printStackTrace();
                            }
                        }
                    });

            Bundle parameters = new Bundle();
            parameters.putString("fields","id,first_name,last_name,name,email,link,picture.type(large)");
            request.setParameters(parameters);
            request.executeAsync();

        }

       
        buttonChangeAlias.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                alias.setFocusableInTouchMode(true);
                alias.setText("");
                alias.setEnabled(true);
                click = true;
                alias.setOnKeyListener(new View.OnKeyListener() {
                    public boolean onKey(View v, int keyCode, KeyEvent event) {
                        if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
                            alias.setCursorVisible(false);
                            alias.setEnabled(false);
                            alias.setTextColor(Color.BLACK);
                            int id = conn.requestId(name_user.getText().toString());
                            conn.overwriteAlias(alias.getText().toString(),id);
                            return true;
                        }
                        return false;
                    }

                });
            }
        });



        return  view;

    }

    private String generateAliasRandom(){
        String chars = "0123456789abcdefghijklmnopqrstuvwxyz";
        Random random = new Random();
        StringBuilder name_alias = new StringBuilder(10);
        for (int i = 0; i < 10; i++){
            name_alias.append(chars.charAt(random.nextInt(chars.length())));
        }
        alias.setText(name_alias);
        return String.valueOf(name_alias);
    }


    @RequiresApi(api = Build.VERSION_CODES.P)
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        ConexionSQliteHelper conn=new ConexionSQliteHelper(getContext(),"lala",null,1);
        if(resultCode == RESULT_OK && data != null){
            Uri selectedImage = data.getData();
            image_user.setImageURI(selectedImage);
            String stringUri = selectedImage.toString();
            int id_user = conn.requestId(name_user.getText().toString());
            conn.overWriteImage(stringUri,id_user);
          

        }
    }



}

Answer 1

String fileName= getFileName(mActivity, selectedImage);

 public static String getFileName(Context context, Uri uri) {
    String result = null;
    if (uri.getScheme().equals("content")) {
        Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
        try {
            if (cursor != null && cursor.moveToFirst()) {
                result = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }
    if (result == null) {
        result = uri.getPath();
        int cut = result.lastIndexOf(File.separator);
        if (cut != -1) {
            result = result.substring(cut + 1);
        }
    }
    return result;
}