android webview将网页内容导出为图片和PDF方法

项目需求中需要把webview的网页内容导出为图片和PDF，方法如下

导出为PDF

注意: 该方法只能在API 19+可以使用

代码如下：

 public void printPDF() {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {            // Get a PrintManager instance            PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);            // Get a print adapter instance            PrintDocumentAdapter printAdapter = webView.createPrintDocumentAdapter();            // Create a print job with name and adapter instance            String jobName = getString(R.string.app_name) + " Document";            printManager.print(jobName, printAdapter,                    new PrintAttributes.Builder().build());        } else {            Toast.makeText(getApplicationContext(), "当前系统不支持该功能", Toast.LENGTH_SHORT).show();        }    }

导出为图片

代码如下：

需要权限:    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>    /** * 保存图片 * * @param view */    public void saveImage(View view) {        Picture picture = webView.capturePicture();        Bitmap b = Bitmap.createBitmap(                picture.getWidth(), picture.getHeight(), Bitmap.Config.ARGB_8888);        Canvas c = new Canvas(b);        picture.draw(c);        File file = new File("/sdcard/" + "page.jpg");        if(file.exists()){            file.delete();        }        FileOutputStream fos = null;        try {            fos = new FileOutputStream(file.getAbsoluteFile());            if (fos != null) {                b.compress(Bitmap.CompressFormat.JPEG, 90, fos);                fos.close();                Toast.makeText(getApplicationContext(), "保存成功", Toast.LENGTH_SHORT).show();            }        } catch (Exception e) {            e.printStackTrace();            Toast.makeText(getApplicationContext(), "保存失败", Toast.LENGTH_SHORT).show();        }    }

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