Android Printing API on Galaxy Tab

问题

I would like to add wireless printing to my android 2.2 application which is targeted for the Galaxy tablet. I see that the internet browser has a print option so I am assuming that an activity hook must exist, and I was hoping that someone has figured this out. I have found a possibility using the PrinterShare application from Mobile Dynamix, but my preference would be to no require a 3rd party.

Here is the code example that they provide, just for reference.

Intent i = new Intent(Intent.ACTION_VIEW);
i.setPackage("com.dynamixsoftware.printershare");
i.setDataAndType(data_uri, data_type);
startActivity(i);

Where:

data_uri - Uri of the object to print, such as "file:///sdcard/something.pdf" or "content://something"

data_type - Mime type. The following mime types are supported: "application/pdf" "text/html" "text/plain" "image/png" "image/jpeg"

回答1:

Printing is not yet supported on Android. You have to use a 3rd party solution like Mobile Dynamix, HP iPrint for Android or Send2Printer.

Intents are described here:

http://www.openintents.org/en/node/735

http://www.openintents.org/en/node/278

回答2:

Use build in PrintManager Service

private void doWebViewPrint() {
        mWebView = new WebView(PrintActivity.this);
        WebSettings settings = mWebView.getSettings();
        settings.setJavaScriptEnabled(true);
        mWebView.setWebViewClient(new WebViewClient() {

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                return false;
            }

            @Override
            public void onPageFinished(WebView view, String url) {
                mProgressBar.setVisibility(View.GONE);
                createWebPrintJob(view);
                mWebView = null;
            }
        });
        mWebView.loadUrl(urlToPrint);
    }

    protected void createWebPrintJob(WebView webView) {
        PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
        @SuppressWarnings("deprecation")
        PrintDocumentAdapter printAdapter = webView.createPrintDocumentAdapter();
        mPrintJob = printManager.print(docName, printAdapter,
                new PrintAttributes.Builder().build());
    }

you need to set

urlToPrint = "whatUrlToPrint"
docName = "anyDocumentName";

来源：https://stackoverflow.com/questions/4580088/android-printing-api-on-galaxy-tab

标签

android

printing

tablet

galaxy