將圖像保存爲具有自定義名稱的自定義文件夾

Question

我正在嘗試構建捕獲圖像的應用程序並將圖像保存爲具有自定義名稱的自定義文件夾，但我無法執行此操作。

這裏是我寫的代碼，請通過代碼並糾正我在哪裏我錯了。

public class MainActivity extends Activity { 
    private static final int SELECT_PICTURE = 1; 
    private String selectedImagePath; 
    private static final int CAMERA_REQUEST = 1888; 
    private ImageView imageView; 
    private Builder alertDialogBuilder; 

    final Context context = this; 
    String name_str; 

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

     imageView = (ImageView)this.findViewById(R.id.imageView1); 
     Button photoButton = (Button) this.findViewById(R.id.button1); 
     Button searchButton = (Button) this.findViewById(R.id.button2); 
     photoButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
       startActivityForResult(cameraIntent, CAMERA_REQUEST); 

       } 
     }); 
     searchButton.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       Intent intent = new Intent(); 
       intent.setType("image/*"); 
       intent.setAction(Intent.ACTION_GET_CONTENT); 
       startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE); 
      } 
     }); 
    } 
    public void onActivityResult1(int requestCode, int resultCode, Intent data) { 
     if (resultCode == RESULT_OK) { 
      if (requestCode == SELECT_PICTURE) { 
       Uri selectedImageUri = data.getData(); 
       selectedImagePath = getPath(selectedImageUri); 
       System.out.println("Image Path : " + selectedImagePath); 
       imageView.setImageURI(selectedImageUri); 
      } 
     } 
    } 
    public 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); 
    } 


    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) { 
     final Bitmap photo = (Bitmap) data.getExtras().get("data"); 
     imageView.setImageBitmap(photo); 

     //Creating Alert Dialog Box 
     AlertDialog.Builder askname = new AlertDialog.Builder(MainActivity.this); 
     final EditText inputname = new EditText(this); 
     askname.setMessage("Enter Name"); 
     askname.setView(inputname); 

     askname.setPositiveButton("OK",new DialogInterface.OnClickListener() { 
        @Override 
      public void onClick(DialogInterface dialog, int which) { 
       // TODO Auto-generated method stub 
      name_str = inputname.getEditableText().toString(); 
       Toast.makeText(context,name_str,Toast.LENGTH_LONG).show(); 
       dialog.dismiss(); 

       /*if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) { 
        Bitmap photo = (Bitmap) data.getExtras().get("data"); 
        //photo = BitmapFactory.decodeByteArray(data,0,data.length); 
        imageView.setImageBitmap(photo);*/ 

        String file ="/DCIM/VisitingCards/"; 
        File folder = new File(Environment.getExternalStorageDirectory() + file); 

        System.out.println("File name is :"+folder); 
        boolean success = true; 
        if (!folder.exists()) { 
         success = folder.mkdir(); 
        } 
        if (success) { 
         //ON success 
         System.out.println("Directory Present"); 
         System.out.println("In Success Case"); 
         try { 
           FileOutputStream out = new FileOutputStream(folder); 
           photo.compress(Bitmap.CompressFormat.JPEG, 100, out); 
           out.flush(); 
           out.close(); 
          } catch (Exception e) { 
           e.printStackTrace(); 
          } 
         } else { 
         //ON failure 
         System.out.println("Directory not Present"); 
         System.out.println("In Failure Case"); 
        } 
        System.out.println("Before the Dialog builder"); 
      } 
     }); 
      askname.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int whichButton) { 
       // Canceled. 
      dialog.dismiss(); 
      } 
     }); //End of alert.setNegativeButt 


    askname.show(); 
     }  

    } 

} 

Answer 1

你應該問意圖之前的圖像名稱，然後使用putExtra。 希望它可以幫到你