首先，我是法国人，我会尽力用流利的英语解释我的问题。
所以，我想在那个屏幕上转换成 PDF：listeTrouActivity.java
但是正如你所看到的，有滚动视图，并且孔列正在下降到 18 个孔。
所以我遵循了一些教程：
http://valokafor.com/how-to-convert-android-view-to-pdf/#comment-1018
我开始使用图书馆 ITextG
但我的问题是，当我将位图转换为 PDF 时，它给了我一个只有屏幕大小的 PDF。我的活动完全停止了。
所以我希望你们能帮助我，我的代码可以在我的名为 ListTrouActivity.java 的活动中将我的位图转换为 PDF：
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
CoursePdf coursePdf = new CoursePdf();
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
if (id == R.id.saveHasPDF) {
View mRootView = findViewById(R.id.RootView);
String state = Environment.getExternalStorageState();
if (!Environment.MEDIA_MOUNTED.equals(state)){
Toast.makeText(ListTrouActivity.this, "OK", Toast.LENGTH_SHORT).show();
}
File pdfDir = new File(DEFAULT_PATH, "MyApp");
if (!pdfDir.exists()){
pdfDir.mkdirs();
}
LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
LinearLayout root = (LinearLayout) inflater.inflate(R.layout.liste_trou_activity, null); //RelativeLayout is root view of my UI(xml) file.
root.setDrawingCacheEnabled(true);
Bitmap screen = coursePdf.getBitmapFromView2(this.getWindow().findViewById(R.id.RootView));
// here give id of our root layout (here its my RelativeLayout's id)
File pdfFile = new File(pdfDir, "myPdfFile.pdf");
try {
Rectangle pagesize = new Rectangle(1720f, 3200f);
Document document = new Document(pagesize, 36f, 72f, 108f, 180f);
PdfWriter.getInstance(document, new FileOutputStream(pdfFile));
document.open();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
screen.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
coursePdf.addImage(document,byteArray);
document.close();
}
catch (Exception e){
e.printStackTrace();
}
Intent intent = new Intent(Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(new File(pdfDir, "myPdfFile.pdf"));
intent.setDataAndType(uri, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
CoursePDF.java 中 getBitmapFromView 的代码：
public static Bitmap getBitmapFromView2(View view) {
//Define a bitmap with the same size as the view
Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(),Bitmap.Config.ARGB_8888);
//Bind a canvas to it
Canvas canvas = new Canvas(returnedBitmap);
//Get the view's background
Drawable bgDrawable =view.getBackground();
if (bgDrawable!=null)
//has background drawable, then draw it on the canvas
bgDrawable.draw(canvas);
else
//does not have background drawable, then draw white background on the canvas
canvas.drawColor(Color.WHITE);
// draw the view on the canvas
view.draw(canvas);
//return the bitmap
return returnedBitmap;
}
我 CoursePDF.java 中 addImage 的代码：
public static void addImage(Document document, byte[] byteArray)
{
Image image = null;
try
{
image = Image.getInstance(byteArray);
}
catch (BadElementException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (MalformedURLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
// image.scaleAbsolute(150f, 150f);
try
{
document.add(image);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
不幸的是，我无法在此处跳过我的 liste_trou_activity.xml 代码，否则我将达到 157 000 个字符。
如果你们真的需要它只是问，我会再试一次。
我希望你们都明白我的要求，如果没有，请再问我一次，我会再次尝试解释。
感谢阅读，希望大家能帮到我。