I am working on an e-library project, where we have to display pdf books for children.
I would like to know if I can find some PDF plugins to display PDF nicely.
I used to have the same problem and I figured out, that Android works very well with rn-pdf-reader-js. On the other hand, for ios WebView component is 100% sufficient to display PDF content, so I switched (depends on the platform) between the two of them.
Related
Can anyone help me to create the above design in react native.
I am using react-native-pdf library but I could not find a way to implement above design.
I think we should not have to load all the PDFs in card lists.
The proper way should be to use thumbnails of PDF files to show the PDF previews and when the user selects the Card then we can show the PDF Content to the user.
Here below I will suggest you have a try using the below NPM package which might workaround for your requirement.
React Native PDF Thumbnail
I'm developing a UWP app for tablet and i need to generate a PDF with data from SQLite. I need to do this completely offline because where I will use the app there is no connection. What could I do?
I'd prefer not to use paid libraries like Syncfusion and XFinium so I'm trying to find an alternative solution.
I tried with iTextSharp but unfortunately I can't find a good documentation to render a complex PDF or to export a Bitmap generated from a Grid Component to a PDF File.
Why not render your data into a webpage displayed with a WebView control? Then you can use any permissive licensed javascript library to generate the PDF.
If it hasn't changed much, then you can only send text back and forth between your WebView and UWP app, but that's workable. Your final PDF result can be read back as a base64 encoded string.
A very quick search found this one that seems easy to use and you can just download the source to put into your app:
https://github.com/MrRio/jsPDF
Since React Native webview components is only support iOS, I wonder what other options are available to parse markdown strings for android. Anyone had worked with markdown in React Native for Android app?
See if this solves the problem: https://github.com/lwansbrough/react-native-markdown
I recommend react-native-markdown-view which we're using at 2minute.com.
It's the only RN Markdown lib I found that properly renders a list. It's also the only one to have merged a pull request in the last month.
Alternatives: I've tried others in some depth but they can't do lists properly. react-native-simple-markdown renders the list bullet in the middle instead of at the top of the list item, and the styling was also bugged. react-native-markdown-renderer renders lists off the right side of the screen. react-native-markdown hasn't been touched in 3 years so I skipped that one.
We are going to develop a mobile app (iOS and Android), which should provide downloading and storing several user-selected PDF files and viewing them within the app (iOS with WebView) or with an external PDF Viewer (Android).
My Question is: Is this possible with Trigger.io? I didn't find anything concerning this in the official documentation. Can we do something with the file or the child browser / tabs module? If yes, do you have any examples?
Note: We will use Backbone.js and jQuery Mobile as additional libraries.
The Android webview doesn't allow for inline opening of PDFs - you can test that by opening e.g. http://trigger.io/cross-platform-application-development-blog/wp-content/uploads/2012/05/trigger.io-whitepaper.pdf in your stock browser.
On iOS, you can use:
forge.tools.getURL('my_file.pdf',
function (file) {
forge.tabs.open(file);
}
);
But that won't work on Android (tested on 2.3, 3 and 4.0).
Short answer - yes.
Downloading, storing, then showing/referencing later can definitely be done. Check out the forge.file documentation.
I have not tried the child browser feature yet. Although the tabs module will work, I think its best to just let the device (and its user settings) decide how to display/render the PDF. I am only saying this because my devices (especially the Android ones... 2.3 and 4.x) tend to behave differently. Either way... the device's "back button" always gets me back to where I left off in my trigger.io app.
I am working on the PDF App for iPad and facing an issue: how to search a text in PDF and also how to highlight that text?
Yours is the same big problem I'm having. My understanding is that, currently on iOS 4.0, the main public API is CGPDF . It allows us to parse PDF, and with it we can search strings in it. See also this Quartz 2D document. It also allows us to render it on the screen using CGContextDrawPage. However, it's not yet possible to get the position of a text in the rendered image. (On OS X it's possible using PDFKit.)
So, I'm afraid that you need to implement the PDF spec yourself to get that info. I think GoodReader etc. is working very very hard to implement these.
I had the same trouble recently and then I found FastPDFKit. Have tested the package and it's working great.
http://mobfarm.eu/fastpdfkit