Screenshot not working in android

Question

Here is my code.I want to take screenshot when button is clicked and preview the image in iamgeview and store in sd card.But when the button is clicked nothing happens!!Iam new to androdi.plz help!thanks in advance

case R.id.screnshotid:
    Bitmap bitmap;
    View v1 = findViewById(R.id.Flayout);// get ur root view id
    v1.setDrawingCacheEnabled(true); 
    bitmap = Bitmap.createBitmap(v1.getDrawingCache());
    v1.setDrawingCacheEnabled(false);

    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
    File f = new File(Environment.getExternalStorageDirectory()
                    + File.separator + "test.jpg");
    try {
        f.createNewFile();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    FileOutputStream fo = null;
    try {
        fo = new FileOutputStream(f);
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    try {
        fo.write(bytes.toByteArray());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } 
    try {
        fo.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    break;

InnocentKiller · Answer 1 · 2014-04-05T06:16:40.147

1

  Bitmap bitmap;
  View v1 = findViewById(R.id.rlid);// get ur root view id
  v1.setDrawingCacheEnabled(true); 
  bitmap = Bitmap.createBitmap(v1.getDrawingCache());
  v1.setDrawingCacheEnabled(false);

For saving

  ByteArrayOutputStream bytes = new ByteArrayOutputStream();
  bitmap.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
  File f = new File(Environment.getExternalStorageDirectory()
                    + File.separator + "test.jpg")
  f.createNewFile();
  FileOutputStream fo = new FileOutputStream(f);
  fo.write(bytes.toByteArray()); 
  fo.close();

Edit

ok.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {

            imageView.buildDrawingCache();
            Bitmap bm = imageView.getDrawingCache();

            OutputStream fOut = null;
            Uri outputFileUri;
            try {
                File root = new File(Environment
                        .getExternalStorageDirectory()
                        + File.separator
                        + "folder_name" + File.separator);
                root.mkdirs();
                File sdImageMainDirectory = new File(root, "myPicName.jpg");
                outputFileUri = Uri.fromFile(sdImageMainDirectory);
                fOut = new FileOutputStream(sdImageMainDirectory);
            } catch (Exception e) {
            }
            try {
                bm.compress(Bitmap.CompressFormat.PNG, 100, fOut);
                fOut.flush();
                fOut.close();
            } catch (Exception e) {
            }
        }
    });

Don't forget to add permissions or it wont work:

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

By default it will save image inside your SDcard's folder and folder name is folder_name with test.jpg name.

edited Apr 05 '14 at 06:16

answered Apr 05 '14 at 05:24

InnocentKiller

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Just put this code inside button's click event and give a try. Let me know whether it is working or not. – InnocentKiller Apr 05 '14 at 05:27
Can u plz tel me wat are all the changes iam supposed to do..!! Iam new to android.I could not understand this bitmap concept much! @InnocentKiller – anusha Apr 05 '14 at 05:29
Just copy and paste this code inside your button's click event. That's it. Nothing more. – InnocentKiller Apr 05 '14 at 05:30
– anusha Apr 05 '14 at 05:33
Have added this at the end of my manifest file!!Is this correct? – anusha Apr 05 '14 at 05:33
Yes that is absolutely fine, No problem at all. – InnocentKiller Apr 05 '14 at 05:34
Check inside your SDcard whether file with name `test.jpg` is exist or not. – InnocentKiller Apr 05 '14 at 05:37
No image is there in the sd card – anusha Apr 05 '14 at 05:38
– anusha Apr 05 '14 at 05:39
i added the root as View v1 = findViewById(R.id.Flayout); – anusha Apr 05 '14 at 05:39
your activity's xml file id is `Flayout`? – InnocentKiller Apr 05 '14 at 05:48
– anusha Apr 05 '14 at 05:52
My root is framelayout and i have gievn id as Flayout!! – anusha Apr 05 '14 at 05:52
Can you show me code where exactly and how you have used this above code. – InnocentKiller Apr 05 '14 at 05:53
Have edited my code!! – anusha Apr 05 '14 at 05:58
@anusha, check my edit, try with that code, that is perfectly working code for me. It should work for you too. – InnocentKiller Apr 05 '14 at 06:05
what is this imageview.builddrawingcache? Its showing error like create local variable – anusha Apr 05 '14 at 06:11
The above second code will take the screenshot of particular imageview. it is not for entire screen. – InnocentKiller Apr 05 '14 at 06:13
ImageView imgshot; imgshot.buildDrawingCache(); Bitmap bm = imgshot.getDrawingCache(); – anusha Apr 05 '14 at 06:16
My imageview name is imgshot so i used like this.Is this correct? – anusha Apr 05 '14 at 06:16
Yes that is correct, just replace `imageView` with `imgshot` and give a try. – InnocentKiller Apr 05 '14 at 06:17
Its not working.I have animation in background.I think pblm is cz of tat? – anusha Apr 05 '14 at 06:21
Just try this second code on simple imageview and check whether it is working or not. – InnocentKiller Apr 05 '14 at 06:22

Screenshot not working in android

1 Answers1