johnjohndoe / android-developers-samples Goto Github PK

    // Important: Only after the page is loaded we will do the print.
    mWebView.setWebViewClient(new WebViewClient() {
        @RequiresApi(api = Build.VERSION_CODES.KITKAT)
        @Override
        public void onPageFinished(WebView view, String url) {
            doPrint();
        }
    });


    mWebView.loadDataWithBaseURL(null, htmlDocument, "text/HTML", "UTF-8", null);

    // Load an HTML page.
    //  mWebView.loadUrl("file:///android_res/raw/motogp_stats.html");
}

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private void doPrint() {


    // Get the print manager.
    PrintManager printManager = (PrintManager) getSystemService(
            Context.PRINT_SERVICE);


   // Create a wrapper PrintDocumentAdapter to clean up when done.
    PrintDocumentAdapter adapter = new PrintDocumentAdapter() {
        private final PrintDocumentAdapter mWrappedInstance =
                mWebView.createPrintDocumentAdapter();

        @Override
        public void onStart() {
            mWrappedInstance.onStart();
        }

        @Override
        public void onLayout(PrintAttributes oldAttributes, PrintAttributes newAttributes,
                             CancellationSignal cancellationSignal, LayoutResultCallback callback,
                             Bundle extras) {
            mWrappedInstance.onLayout(oldAttributes, newAttributes, cancellationSignal,
                    callback, extras);
        }

        @Override
        public void onWrite(PageRange[] pages, ParcelFileDescriptor destination, CancellationSignal cancellationSignal, WriteResultCallback callback) {
            mWrappedInstance.onWrite(pages, destination, cancellationSignal, callback);
        }



        @Override
        public void onFinish() {
            mWrappedInstance.onFinish();
            // Intercept the finish call to know when printing is done
            // and destroy the WebView as it is expensive to keep around.
            mWebView.destroy();
            mWebView = null;
        }
    };


    try{
        // Pass in the ViewView's document adapter.
       printManager.print("MotoGPstats", adapter, null);
       // printManager.print("MotoGP stats", mWebView.createPrintDocumentAdapter(), null);
        Log.i("MotoGPstats",""+mWebView.createPrintDocumentAdapter());
        Log.i("printtest",""+adapter);
    }catch (NullPointerException n){
        n.getMessage();
    }

}