android WebView 截取长图

Posted 2022-02-05 安果移不动

  private static Bitmap captureWebView(WebView webView) 
        Picture snapShot = webView.capturePicture();
        Bitmap bitmap = Bitmap.createBitmap(snapShot.getWidth(),
                snapShot.getHeight(), Bitmap.Config.ARGB_4444);
        Canvas canvas = new Canvas(bitmap);
        snapShot.draw(canvas);
        return bitmap;
    

将bitmap保存到本地

  private void saveImageToGallery(Context context, Bitmap bitmap) 
        //判断文件权限是否授权。没授权提示去授权并关闭
        String[] sdList = 
                Manifest.permission.WRITE_EXTERNAL_STORAGE,
                Manifest.permission.READ_EXTERNAL_STORAGE
        ;
        boolean hasPermission = PermissionUtils.checkPermissionFirst(context, 0x1001, sdList);

        if (!hasPermission) 
            TipsToast.showTips(context, R.string.need_sd_permission);
            return;
        
        // 首先保存图片
        File appDir = new File(Environment.getExternalStorageDirectory().