비트 맵 이미지를 이미지보기로 가져올 수 없습니다.

Question

이미지가 원하는 폴더에 저장되었지만 imageView에 표시되지 않고 토스트가 표시됩니다. 다른 XML 파일을 사용하거나 클래스를 변경하는 것과 같은 거의 모든 방법으로 시도했습니다. 문제는 여전히 존재합니다.

당신은 당신이 그것의 기반으로 스위치를 실행하려고 다음 값 0의 resultCode를 제한하고있어

if (resultCode == 0) { 
      switch (resultCode) { 
       case Activity.RESULT_OK: 
       { 

말 :

package com.example.mohammadhasham.jtbopencameramodule; 

import android.app.Activity; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.icu.text.SimpleDateFormat; 
import android.net.Uri; 
import android.os.Bundle; 
import android.os.Environment; 
import android.provider.MediaStore; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v4.content.FileProvider; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.View; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.Toast; 

import java.io.File; 
import java.util.Date; 

public class CameraActivity extends AppCompatActivity { 

    ImageView img; 
    String currentPath; 
    File f; 

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

     img = (ImageView) (findViewById(R.id.capture)); 


    } 

    public void captureImage(View v) { 

     Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
     f = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), "image.jpg"); 
     Uri u = Uri.fromFile(f); 
     i.putExtra(MediaStore.EXTRA_OUTPUT, u); 
     i.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); 
     startActivityForResult(i, 0); 
    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 

     if (resultCode == 0) { 
      switch (resultCode) { 
       case Activity.RESULT_OK: 
       { 
        if (f.exists()) 
        { 
         Toast.makeText(this, "Image Saved To Gallery", Toast.LENGTH_LONG).show(); 
         Bitmap b = BitmapFactory.decodeFile(f.getAbsolutePath()); 
          img.setImageBitmap(b); 


        } 
        else 
        { 
         Toast.makeText(this, "Image Not Saved To Gallery", Toast.LENGTH_LONG).show(); 

        } 
        break; 
       } 
       case Activity.RESULT_CANCELED: 
       { 
        break; 
       } 
       default: 
        break; 
      } 
     } 
    } 

} 

Answer 1

나는 당신이 당신의 코드에서 실수를 믿습니다 값.

Answer 2

이 시도 :

공용 클래스 CameraActivity는 AppCompatActivity {

private final String APP_TAG = "MyCustomApp"; 
private static final int REQUEST_IMAGE_CAPTURE = 1; 
private String photoFileName = "photo.jpg"; 

private ImageView img; 

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


    img = (ImageView) (findViewById(R.id.imageView)); 
} 

public void captureImage(View v) { 

    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
    if (takePictureIntent.resolveActivity(getPackageManager()) != null) { 
     takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, getPhotoFileUri(photoFileName)); 
     takePictureIntent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); 
     startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); 
    } 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 

    if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { 
     Toast.makeText(this, "Image Saved To Gallery", Toast.LENGTH_LONG).show(); 

     Uri takenPhotoUri = getPhotoFileUri(photoFileName); 
     Bitmap imageBitmap = BitmapFactory.decodeFile(takenPhotoUri.getPath()); 
     img.setImageBitmap(imageBitmap); 
    } else { 
     Toast.makeText(this, "Image Not Saved To Gallery", Toast.LENGTH_LONG).show(); 

    } 
} 

// Returns the Uri for a photo stored on disk given the fileName 
public Uri getPhotoFileUri(String fileName) { 
    File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
      Environment.DIRECTORY_DOWNLOADS).getAbsolutePath()); 

    // Create the storage directory if it does not exist 
    if (!mediaStorageDir.exists() && !mediaStorageDir.mkdirs()) { 
     Log.d(APP_TAG, "failed to create directory"); 
    } 

    // Return the file target for the photo based on filename 
    return Uri.fromFile(new File(mediaStorageDir.getPath() + File.separator + fileName)); 
} 

}