Reading pdf file issue, again!
I'm developing a book reader which opens pdf files. It is a well known issue that working with pdf can be so demanding for Android developers.
My question is also based on this problem. I've investigated many sites blogs but couldn't find any solution to change the textcolor of pdf file, finally I thought that we can change the original screen colors, for example changing black to white and white to black, in a nutshell, making colors contrast.
Any suggestion will be welcome. Please help me to solve this problem.
The code that I use to open pdf file is:
pdfView.fromAsset("pdf.pdf")
.pages(0) // all pages are displayed by default
.enableSwipe(true) // allows to block changing pages using swipe
.swipeHorizontal(false)
.enableDoubletap(true)
.defaultPage(0)
// allows to draw something on the current page, usually visible in the middle of the screen
.onDraw(new OnDrawListener() {
@Override
public void onLayerDrawn(Canvas canvas, float pageWidth, float pageHeight, int displayedPage) {
}
})
// allows to draw something on all pages, separately for every page. Called only for visible pages
.onDrawAll(new OnDrawListener() {
@Override
public void onLayerDrawn(Canvas canvas, float pageWidth, float pageHeight, int displayedPage) {
}
})
.onLoad(new OnLoadCompleteListener() {
@Override
public void loadComplete(int nbPages) {
}
}) // called after document is loaded and starts to be rendered
.onPageChange(new OnPageChangeListener() {
@Override
public void onPageChanged(int page, int pageCount) {
}
})
.onPageScroll(new OnPageScrollListener() {
@Override
public void onPageScrolled(int page, float positionOffset) {
}
})
.onError(new OnErrorListener() {
@Override
public void onError(Throwable t) {
}
})
.onRender(new OnRenderListener() {
@Override
public void onInitiallyRendered(int nbPages, float pageWidth, float pageHeight) {
pdfView.fitToWidth();
}
}) // called after document is rendered for the first time
.enableAnnotationRendering(false) // render annotations (such as comments, colors or forms)
.password(null)
.scrollHandle(null)
.enableAntialiasing(true) // improve rendering a little bit on low-res screens
// spacing between pages in dp. To define spacing color, set view background
.spacing(0)
.load();The library that I used:
compile 'com.github.barteksc:android-pdf-viewer:2.7.0-beta.1'
Thanks in advance.