PDF線上瀏覽__簡單的執行個體

 private void lookPdf(final String path) {        new Thread(new Runnable() {            @Override            public void run() {                try {                    URL url = new URL(path);                    HttpURLConnection connection = (HttpURLConnection)                            url.openConnection();                    connection.setRequestMethod("GET");//試過POST 可能報錯                    connection.setDoInput(true);                    connection.setConnectTimeout(10000);                    connection.setReadTimeout(10000);                    connection.connect();                    if (connection.getResponseCode() == 200) {                        InputStream is = connection.getInputStream();                        pdfview.fromStream(is)                                .enableSwipe(true)                                .swipeHorizontal(false)                                .enableDoubletap(true)                                .defaultPage(0)                                .onDraw(new OnDrawListener() {                                    @Override                                    public void onLayerDrawn(Canvas canvas, float pageWidth, float pageHeight, int displayedPage) {                                    }                                })                                .onLoad(new OnLoadCompleteListener() {                                    @Override                                    public void loadComplete(int nbPages) {                                        //dialog.removeDialog();                                    }                                })                                .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) {                                        // dialog.removeDialog();                                        t.printStackTrace();                                        Toast.makeText(ZhaofanyiWrittenDetailActivity.this, "載入失敗", Toast.LENGTH_SHORT).show();                                    }                                })                                .enableAnnotationRendering(false)                                .password(null)                                .scrollHandle(null)                                .load();                    }                } catch (Exception e) {                    e.printStackTrace();                }            }        }).start();    }

就這麼多比較好用，，，
compile ‘com.github.barteksc:android-pdf-viewer:3.0.0-beta.5’