Code Monkey home page Code Monkey logo

Comments (1)

eschao avatar eschao commented on June 3, 2024

First, you need to know the PageFlip needs a bitmap you passed to show on the screen, if flipping, it needs another bitmap for the next page, that means, PageFlip will at least have two bitmap to show during flipping, one is the first page - current showing page, another is the next page - waiting to show, so, when you want to change anything on current showing page, you just use the canvas to draw anything you want on this bitmap and then pass it to PageFlip to show again, here is an example for how to draw with canvas:

        // 1. draw background bitmap
        Bitmap background = LoadBitmapTask.get(mContext).getBitmap();
        Rect rect = new Rect(0, 0, width, height);
        mCanvas.drawBitmap(background, null, rect, p);
        background.recycle();
        background = null;

        // 2. draw page number
        int fontSize = calcFontSize(80);
        p.setColor(Color.WHITE);
        p.setStrokeWidth(1);
        p.setAntiAlias(true);
        p.setShadowLayer(5.0f, 8.0f, 8.0f, Color.BLACK);
        p.setTextSize(fontSize);
        String text = String.valueOf(number);
        float textWidth = p.measureText(text);
        float y = height - p.getTextSize() - 20;
        mCanvas.drawText(text, (width - textWidth) / 2, y, p);
...

After you have a new bitmap with your desired changes, then you can do like the following codes in function:

        // draw stationary page without flipping
        else if (mDrawCommand == DRAW_FULL_PAGE) {
            if (!page.isFirstTextureSet()) {
                drawPage(mPageNo);
                page.setFirstTexture(mBitmap);
            }

            mPageFlip.drawPageFrame();
        }

from android-pageflip.

Related Issues (20)

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.