使用下面的代码来渲染pdf。这是一个尝试/捕捉,并运行良好,显示PDF。PDF渲染器将屏幕设置为屏幕
问题是PDF文件对于屏幕来说太大了。有谁知道如何缩小比例以适应?
谢谢。
imageView = (ImageView) findViewById(R.id.imagePDF);
int REQ_WIDTH = imageView.getWidth();
int REQ_HEIGHT = imageView.getHeight();
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width12 = size.x;
int height12 = size.y;
Bitmap bitmap = Bitmap.createBitmap(width12, height12, Bitmap.Config.ARGB_4444);
File file = new File("/sdcard/Download/sample.pdf");
PdfRenderer renderer = new PdfRenderer(ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY));
if (currentPage < 0) {
currentPage = 0;
} else if (currentPage > renderer.getPageCount()) {
currentPage = renderer.getPageCount();
}
int pages;
pages = renderer.getPageCount();
Matrix m = imageView.getImageMatrix();
Rect rect = new Rect(0, 0, width12, height12);
renderer.openPage(currentPage).render(bitmap, rect, m, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
imageView.setImageMatrix(m);
imageView.setImageBitmap(bitmap);
imageView.invalidate();
ImageView.setScaleType(CENTER_INSIDE) –
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE); < - 这不起作用,PDF图像仍然在屏幕的边上运行 – AesculusMaximus
Rect和Matrix是可选的。如果两者都传递null,会发生什么? –