Shubham Nandanwar Shubham Nandanwar - 3 months ago 6
Android Question

Issue in fetching image from SD card and displaying on an ImageView

I found a program on this page to fetch image from sd card and show it on an imageView. I am getting issue at this line -

bitmap = BitmapFactory.decodeFile(picturePath);


I am getting correct value of picturePath variable but in the above line it is setting bitmap value as null. I had visited various threads and almost everyone is using this same line. I am not getting what is wrong with my code

Here is my complete code -

private Button upload;
ImageView imgView;
EditText caption;
Bitmap bitmap;

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

imgView = (ImageView) findViewById(R.id.imageView);

upload = (Button) findViewById(R.id.Upload);
caption = (EditText) findViewById(R.id.caption);
imgView.setImageResource(R.drawable.ic_menu_gallery);
upload.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

Intent i = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, 2);
}
});
}

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

if (requestCode == 2 && resultCode == RESULT_OK
&& null != data) {

Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };

Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();

int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();

bitmap = BitmapFactory.decodeFile(picturePath);
imgView.setImageBitmap(bitmap);
caption.setText("Hello");
}
}

Answer

Try putting this in your AndroidManifest.xml

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

After that, make sure you have the permission enabled in the App Info screen on your device.