Taking a "Screenshot" of a Specific Layout in Android

Taking a screenshot of a specific layout in Android

Thanks to you guys, I've finally found out what was wrong.

View v = view.getRootView(); should not be used because it will call the root view which I do not want. I mistakenly thought this did not make a difference because I had entered the wrong resource ID.

MeasureSpec somehow did not give a good account of the width and height. So I ended up using another method:

...
ScrollView z = (ScrollView) findViewById(R.id.scroll);
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.getChildAt(0).getWidth();
u.layout(0, 0, totalWidth, totalHeight);
...

As ScrollView's total height can be determined by the single child element that it has.

After making these changes, I am now able to take a screenshot of a nested ScrollView and all its contents, visible or not. For anyone interested, here is the block of code including the saving of the bitmap:

            View u = findViewById(R.id.scroll);
            u.setDrawingCacheEnabled(true);                                                
            ScrollView z = (ScrollView) findViewById(R.id.scroll);
            int totalHeight = z.getChildAt(0).getHeight();
            int totalWidth = z.getChildAt(0).getWidth();
            u.layout(0, 0, totalWidth, totalHeight);    
            u.buildDrawingCache(true);
            Bitmap b = Bitmap.createBitmap(u.getDrawingCache());             
            u.setDrawingCacheEnabled(false);

            //Save bitmap
            String extr = Environment.getExternalStorageDirectory().toString() +   File.separator + "Folder";
            String fileName = new SimpleDateFormat("yyyyMMddhhmm'_report.jpg'").format(new Date());
            File myPath = new File(extr, fileName);
            FileOutputStream fos = null;
            try {
                fos = new FileOutputStream(myPath);
                b.compress(Bitmap.CompressFormat.JPEG, 100, fos);
                fos.flush();
                fos.close();
                MediaStore.Images.Media.insertImage(getContentResolver(), b, "Screen", "screen");
            }catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

How to take screenshot of a layout in android

Have you got the

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

Declared in your manifest?

Also if you want the entire view try this:

view1.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(view1.getDrawingCache());

Oh and this may save you some time:

private void openScreenshot(File imageFile) {
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_VIEW);
    Uri uri = Uri.fromFile(imageFile);
    intent.setDataAndType(uri, "image/*");
    startActivity(intent);
}

Src: How to programmatically take a screenshot in Android?

Take a screenshot of a specific LinearLayout

Convert the view to Bitmap like this

Ref:Convert view to bitmap on Android

public static Bitmap getBitmapFromView(View view) {
        //Define a bitmap with the same size as the view
        Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
        //Bind a canvas to it
        Canvas canvas = new Canvas(returnedBitmap);
        //Get the view's background
        Drawable bgDrawable =view.getBackground();
        if (bgDrawable!=null) 
            //has background drawable, then draw it on the canvas
            bgDrawable.draw(canvas);
        else 
            //does not have background drawable, then draw white background on the canvas
            canvas.drawColor(Color.WHITE);
        // draw the view on the canvas
        view.draw(canvas);
        //return the bitmap
        return returnedBitmap;
    }

Then use this Bitmap and save it in external like you have.

Taking screenshot of a particular layout

This is the problem:

View v1 = getWindow().getDecorView().getRootView();

You are taking the screenshot of the root view.
You have to place an ID on your RelativeLayout, which is the root of your activity layout, like this:

android:id="@+id/myview"

And then replace the first line I mentioned with:

View v1 = findViewById(R.id.myview);

You will get the bitmap for the layout, without the actionbar and the above blue bar (which is the background of the status bar).
Let me know if it works for you!

android- Taking screenshot of a particular view programmatically does not work

If the problem is getDrawingCache returning null, then just add this lines of code before v.buildDrawingCache(true);

v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 
          MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight()); 

This will prevent that the view has a size of (0,0), and because of that it turns null safe.

Capture a particular layout Screenshot or save a particular layout in a different Activity Imageview

Capture screenshot of your layout on some event. use below code. and send it using intent to next activity.

yourlayout.setDrawingCacheEnabled(true);
 Bitmap myBitmap = yourlayout.getDrawingCache();

 Intent intent=new Intent(this,NextActivity.class);
 intent.putExtra("data", myBitmap )
 startActivity(intent);

Take a screenshot of a whole View

Actually I found the answer:

public static Bitmap loadBitmapFromView(View v) {
    Bitmap b = Bitmap.createBitmap(v.getWidth() , v.getHeight(), Bitmap.Config.ARGB_8888);                
    Canvas c = new Canvas(b);
    v.draw(c);
    return b;
}

---

Related Topics