Issue converting Image Uri from gallery to bitmap Android

Question

I am having trouble converting from an image uri to a bitmap to then show it in an image view, yet I am getting an unhandled exception when converting into a bitmap.

Here is the code:

public class MainActivity extends AppCompatActivity {
public static final int PICK_IMAGE = 1;
Image picture = new Image();
Context context = getApplicationContext();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button btnGallery = (Button) findViewById(R.id.btnGallery);
    final ImageView imageView = (ImageView) findViewById(R.id.imageView);

    btnGallery.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE);
            Uri imageUri = intent.getData();
            Bitmap bitmap= MediaStore.Images.Media.getBitmap(context.getContentResolver(), imageUri);
            imageView.setImageBitmap(bitmap);
        }});

What kind of exception?

Yupi
– Yupi

2017-11-10 00:57:01 +00:00
Commented Nov 10, 2017 at 0:57 — Yupi
– Yupi, Commented Nov 10, 2017 at 0:57

Shubham Suryavanshi · Accepted Answer · 2021-03-09 20:06:36Z

4

You are not picking the image on right way. Remove these three lines of code from you onClick method you will move them inside onActivityResult:

Uri imageUri = intent.getData();
Bitmap bitmap = 
    MediaStore.Images.Media.getBitmap(context.getContentResolver(), imageUri);
imageView.setImageBitmap(bitmap);

Then in your (probably) Activity override onActivityResult and do inside something like this:

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

    if (requestCode == PICK_IMAGE && resultCode == RESULT_OK && data != null) {

        Uri imageUri = data.getData();
        try {
            Bitmap bitmap = 
                MediaStore.Images.Media.getBitmap(getContentResolver(), imageUri);
            imageView.setImageBitmap(bitmap);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

edited Mar 9, 2021 at 20:06

Shubham Suryavanshi

61110 silver badges15 bronze badges

answered Nov 10, 2017 at 1:07

Yupi

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Comments

xbadal · Accepted Answer · 2017-11-10 04:36:42Z

Please try this code, this is working for my app.

 public void choosePhotoFromGallary() {
    Intent galleryIntent = new Intent(Intent.ACTION_PICK,
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

    startActivityForResult(galleryIntent, GALLERY);
}

private void takePhotoFromCamera() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(intent, CAMERA);
}

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

    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_CANCELED) {
        return;
    }
    if (requestCode == GALLERY) {
        if (data != null) {
            Uri contentURI = data.getData();
            try {
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), contentURI);
                bitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
                // path = saveImage(bitmap);

                imageView.setImageBitmap(bitmap);
            } catch (IOException e) {
                e.printStackTrace();
                Toast.makeText(MainActivity.this, "Failed!", Toast.LENGTH_SHORT).show();
            }
        }
    } else if (requestCode == CAMERA) {
        Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
        imageView.setImageBitmap(thumbnail);
        path = saveImage(thumbnail);

    }
}

public String saveImage(Bitmap myBitmap) {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
    File wallpaperDirectory = new File(
            Environment.getExternalStorageDirectory() + IMAGE_DIRECTORY);
    // have the object build the directory structure, if needed.
    if (!wallpaperDirectory.exists()) {
        wallpaperDirectory.mkdirs();
    }

    try {
        File f = new File(wallpaperDirectory, Calendar.getInstance()
                .getTimeInMillis() + ".jpg");
        f.createNewFile();
        FileOutputStream fo = new FileOutputStream(f);
        fo.write(bytes.toByteArray());
        MediaScannerConnection.scanFile(this,
                new String[]{f.getPath()},
                new String[]{"image/jpeg"}, null);
        fo.close();
        Log.d("TAG", "File Saved::--->" + f.getAbsolutePath());

        return f.getAbsolutePath();
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    return "";
}

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