Capture Screen Shot of Googlemap Android API V2

Capture screen shot of GoogleMap Android API V2

Update - Google has added a snapshot method**!:

The feature request for a method to take a screen shot of the Android Google Map API V2 OpenGL layer has been fulfilled.

To take a screenshot, simply implement the following interface:

public abstract void onSnapshotReady (Bitmap snapshot)

and call:

public final void snapshot (GoogleMap.SnapshotReadyCallback callback)

Example that takes a screenshot, then presents the standard "Image Sharing" options:

public void captureScreen()
    {
        SnapshotReadyCallback callback = new SnapshotReadyCallback() 
        {

            @Override
            public void onSnapshotReady(Bitmap snapshot) 
            {
                // TODO Auto-generated method stub
                bitmap = snapshot;

                OutputStream fout = null;

                String filePath = System.currentTimeMillis() + ".jpeg";

                try 
                {
                    fout = openFileOutput(filePath,
                            MODE_WORLD_READABLE);

                    // Write the string to the file
                    bitmap.compress(Bitmap.CompressFormat.JPEG, 90, fout);
                    fout.flush();
                    fout.close();
                } 
                catch (FileNotFoundException e) 
                {
                    // TODO Auto-generated catch block
                    Log.d("ImageCapture", "FileNotFoundException");
                    Log.d("ImageCapture", e.getMessage());
                    filePath = "";
                } 
                catch (IOException e) 
                {
                    // TODO Auto-generated catch block
                    Log.d("ImageCapture", "IOException");
                    Log.d("ImageCapture", e.getMessage());
                    filePath = "";
                }

                openShareImageDialog(filePath);
            }
        };

        mMap.snapshot(callback);
    }

Once the image is finished being captured, it will trigger the standard "Share Image" dialog so the user can pick how they'd like to share it:

public void openShareImageDialog(String filePath) 
{
File file = this.getFileStreamPath(filePath);

if(!filePath.equals(""))
{
    final ContentValues values = new ContentValues(2);
    values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
    values.put(MediaStore.Images.Media.DATA, file.getAbsolutePath());
    final Uri contentUriFile = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

    final Intent intent = new Intent(android.content.Intent.ACTION_SEND);
    intent.setType("image/jpeg");
    intent.putExtra(android.content.Intent.EXTRA_STREAM, contentUriFile);
    startActivity(Intent.createChooser(intent, "Share Image"));
}
else
{
            //This is a custom class I use to show dialogs...simply replace this with whatever you want to show an error message, Toast, etc.
    DialogUtilities.showOkDialogWithText(this, R.string.shareImageFailed);
}
}

Documentation is here

how to get snapshot from Google Map V2

You can try to take a screen shot of the fragment View:

 View view = findViewById(R.id.fragmentId);
 view.setDrawingCacheEnabled(true);
 Bitmap bitmap = view.getDrawingCache();
 BitmapDrawable bitmapDrawable = new BitmapDrawable(bitmap);

I haven't tested it.

How can i take/merge screen shot of Google map v2 and layout of xml both programmatically?

Call the following method to take the screenshot with map:

public void captureMapScreen() {
        SnapshotReadyCallback callback = new SnapshotReadyCallback() {

            @Override
            public void onSnapshotReady(Bitmap snapshot) {
                try {
                    mView.setDrawingCacheEnabled(true);
                    Bitmap backBitmap = mView.getDrawingCache();
                    Bitmap bmOverlay = Bitmap.createBitmap(
                            backBitmap.getWidth(), backBitmap.getHeight(),
                            backBitmap.getConfig());
                    Canvas canvas = new Canvas(bmOverlay);
                    canvas.drawBitmap(snapshot, new Matrix(), null);
                    canvas.drawBitmap(backBitmap, 0, 0, null);
                    FileOutputStream out = new FileOutputStream(
                            Environment.getExternalStorageDirectory()
                                    + "/MapScreenShot"
                                    + System.currentTimeMillis() + ".png");

                    bmOverlay.compress(Bitmap.CompressFormat.PNG, 90, out);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };

        mMap.snapshot(callback);

    }

mview is the root view of your layout and mMap is your map fragment.

Make sure that you have the latest Google Play Services API.

mView.setDrawingCacheEnabled(true);
Bitmap backBitmap = mView.getDrawingCache();
Bitmap bmOverlay = Bitmap.createBitmap(
backBitmap.getWidth(), backBitmap.getHeight(),
backBitmap.getConfig());
Canvas canvas = new Canvas(bmOverlay);
canvas.drawBitmap(snapshot, new Matrix(), null);
canvas.drawBitmap(backBitmap, 0, 0, null);

Skip these lines and use snapshot.compress(Bitmap.CompressFormat.PNG, 90, out); if you want the screenshot of map only.

Take screenshot programatically for Google map V2

There is a method called getDrawingCache() provided by every view. You can try following code.

MapView map = (MapView) findViewById(R.id.map_view);
map.buildDrawingCache();
Bitmap bitmap = map.getDrawingCache();
map.destroyDrawingCache();

You have now bitmap. You can use it as you want.

How to take google Maps v2 snapshot?

You have to call the Google maps snapshot method in a button listener because if you should take it too early, it will give you error bitmap width has to be larger than 0 or something like this.
Here is the code

private void button_listener() {
        Button button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                SnapshotReadyCallback callback = new SnapshotReadyCallback() {
                    Bitmap bitmap;

                    @Override
                    public void onSnapshotReady(Bitmap snapshot) {
                        bitmap = snapshot;
                        try {
                            FileOutputStream out = new FileOutputStream("/mnt/sdcard/Download/TeleSensors.png");
                            bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                };

                map.snapshot(callback);
            }
        });
    }

In Android Map v2 API how to get screen image to share?

But this question and answer implies that it is possible Taking screenshot of Android OpenGL

Only for your own GLContext. You do not have the GLContext for a GoogleMap.

Is there a way to send an intent to the android operating system to have it start the "Take a screenshot" processing?

Fortunately no, for obvious privacy and security reasons. Apps cannot take screenshots, except with root permissions or on a few security-challenged devices.

GoogleMap Android API V2 Capture Error

Note Your code to Capture Map Screen is Correct and if still you have confusion than

Please Make sure Each Step Below:-

Below are the steps to capture screen shot of Google Map V2 with example

Step 1. open Android Sdk Manager (Window > Android Sdk Manager) then Expand Extras now update/install Google Play Services to Revision 10 ignore this step if already installed

Read Notes here https://developers.google.com/maps/documentation/android/releases#august_2013

Step 2. Restart Eclipse

Step 3. import com.google.android.gms.maps.GoogleMap.SnapshotReadyCallback;

Step 4. Make Method to Capture/Store Screen/image of Map like below

public void CaptureMapScreen() 
{
SnapshotReadyCallback callback = new SnapshotReadyCallback() {
            Bitmap bitmap;

            @Override
            public void onSnapshotReady(Bitmap snapshot) {
                // TODO Auto-generated method stub
                bitmap = snapshot;
                try {
                    FileOutputStream out = new FileOutputStream("/mnt/sdcard/"
                        + "MyMapScreen" + System.currentTimeMillis()
                        + ".png");

                    // above "/mnt ..... png" => is a storage path (where image will be stored) + name of image you can customize as per your Requirement

                    bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };

        myMap.snapshot(callback);

        // myMap is object of GoogleMap +> GoogleMap myMap;
        // which is initialized in onCreate() => 
        // myMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map_pass_home_call)).getMap();
}

Step 5. Now call this CaptureMapScreen() method where you want to capture the image

in my case i am calling this method on Button click in my onCreate() which is working fine

like:

Button btnCap = (Button) findViewById(R.id.btnTakeScreenshot);
    btnCap.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            try {
                CaptureMapScreen();
            } catch (Exception e) {
                // TODO: handle exception
                e.printStackTrace();
            }

        }
    });

Check Doc here and here

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