Deleting image from imageview

Question

I'm facing problem in deleting image from imageView hot to delete it from the activity as well as the external media of the file location.

Trying it since 3 days and found no solution yet. I need to apply the delete button code in this java file

public class FullScreenImageAdapter extends PagerAdapter {

private Activity _activity;
private ArrayList<String> _imagePaths;
private LayoutInflater inflater;

// constructor
public FullScreenImageAdapter(Activity activity,
        ArrayList<String> imagePaths) {
    this._activity = activity;
    this._imagePaths = imagePaths;
}

@Override
public int getCount() {
    return this._imagePaths.size();
}

@Override
public boolean isViewFromObject(View view, Object object) {
    return view == ((RelativeLayout) object);
}

@Override
public Object instantiateItem(ViewGroup container, final int position) {
    TouchImageView imgDisplay;
    Button btnClose, deleteButton;

    inflater = (LayoutInflater) _activity
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View viewLayout = inflater.inflate(R.layout.layout_fullscreen_image,
            container, false);

    imgDisplay = (TouchImageView) viewLayout.findViewById(R.id.imgDisplay);
    btnClose = (Button) viewLayout.findViewById(R.id.btnClose);
    deleteButton = (Button) viewLayout.findViewById(R.id.btndelete);
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inPreferredConfig = Bitmap.Config.ARGB_8888;
    Bitmap bitmap = BitmapFactory.decodeFile(_imagePaths.get(position),
            options);
    imgDisplay.setImageBitmap(bitmap);

    // close button click event
    btnClose.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            _activity.finish();
        }
    });




    deleteButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
        // TODO Auto-generated method stub




            String myFile = "/FakeNewsMaker/File.jpg";  

            // File file = new File(imagePath);
         //     if(file.exists())
            //      file.delete();

        }
        });





    ((ViewPager) container).addView(viewLayout);

    return viewLayout;
}






protected void startActivity(Intent createChooser) {
    // TODO Auto-generated method stub

}

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
    ((ViewPager) container).removeView((RelativeLayout) object);

}
}

I hope you have added this line to your manifest and which android version are you using?Marshmallow?and I hope the path above you are giving is correct. — Dhruvi, Jul 13 '16 at 07:37

score 4 · Answer 1 · edited Jul 13 '16 at 08:15

4

Just set image bitmap to null like this -

 imgDisplay.setImageBitmap(null);

edited Jul 13 '16 at 08:15

Onkar Nene

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answered Jul 13 '16 at 07:32

Narendra Sorathiya

3,770
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Sagar Chavada · Answer 2 · 2016-07-13T09:16:04.643

2

you can delete the the imageFile like this.

 public void DeleteFile(String fullPath, int position) {

    try {
        File sdCardRoot = Environment.getExternalStorageDirectory();
        Log.w("SDCardRoot", "" + sdCardRoot);
        File yourDir = new File(sdCardRoot, "/YourFolderName");
        if (!yourDir.exists()) {
            yourDir.mkdirs();
            Log.w("DashBordAct DirName:", "" + yourDir);
        }

        if (yourDir.isDirectory()) {
            File[] content = yourDir.listFiles();
            for (int i = 0; i < content.length; i++) {
                if (content[i].toString().contains(fullPath)) {
                    boolean success = content[i].delete();
                    if (!success) {
                        Log.w("file", "not deleted);
                    } else {
                        Log.w("file", "deleted");
                        _imagePath.remove(position);
                        notifyItemRemoved(position);

                    }
                }
            }
        }
    } catch (NullPointerException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }

}

and set this method in DeleteButton listener like this:

deleteButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            String myFile = "/FakeNewsMaker/File.jpg";  
            DeleteFile(imagePath, getAdapterPosition) //or myFile.
        }
        });

and also set permission in manifest.

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

edited Jul 13 '16 at 09:16

answered Jul 13 '16 at 07:36

Sagar Chavada

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It is showing like this : void is an invalid type for the variable DeleteFile @sagar-chavada – Ashwani Sharma Jul 13 '16 at 08:27
well it is function.. just copy my DeleteFile method at the end of full screenImageAdapter class – Sagar Chavada Jul 13 '16 at 08:42
can you tell me where you are setting up – Sagar Chavada Jul 13 '16 at 08:56
I have tried something else in that i`m facing quite error please check this link – Ashwani Sharma Jul 13 '16 at 09:03
http://stackoverflow.com/questions/38347152/how-to-delete-image-from-its-image-path – Ashwani Sharma Jul 13 '16 at 09:03
i updated my answer as per your requirement,, it will delete your image file and also delete your imagePath list item and refresh at a time so you can see animation with deleting. – Sagar Chavada Jul 13 '16 at 09:18
The problem is solved by me but now when i`m pressing the back button then the image is coming again but it is deleted but again showing it back.. why? – Ashwani Sharma Jul 13 '16 at 10:03
that meant your code is delete only arraylist of that images, you are not deleting image path.. just check your sdcard.. your image really deleted or not, – Sagar Chavada Jul 13 '16 at 10:07

Sohail Zahid · Answer 3 · 2016-07-13T08:57:59.727

To remove from ImageView @Narendra Sorathiya solution is fine if you also want delete it from storage then use the combination.

deleteButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
        // TODO Auto-generated method stub

            imgDisplay.setImageBitmap(null);
            String myFile = v.getTag().toString();  

            File file = new File(myFile);
            if(file.exists())
               file.delete();
            }
        });

Update:

 deleteButton = (Button) viewLayout.findViewById(R.id.btndelete);
 // add below line after deleteButton 
 deleteButton.setTag(_imagePaths.get(position));

And then get Tag when delete button clicked like this

String myFile = v.getTag().toString();

I update the code in above section.

how to find the File.jpg? This will be autogenerated path? – Ashwani Sharma Jul 13 '16 at 08:20 — Ashwani Sharma, Jul 13 '16 at 08:20

score 0 · Answer 4 · answered Jul 13 '16 at 07:53

0

You may use,

imgView.setImageResource(0);

or

imgView.setImageResource(android.R.color.transparent);

or

imgView.setImageBitmap(null);
imgView.destroyDrawingCache();

I hope this works for you !

answered Jul 13 '16 at 07:53

Sathish Kumar J

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Deleting image from imageview

4 Answers4