Android 从Assets文件夹读取pdf文件
我有从sdcard获取文件的代码,并使用名为PDFViewer.jar的jar显示pdf文件,工作起来很有魅力,现在我在Assets文件夹中有了pdf文件,如何获取文件并显示 这是我从SD卡读取pdf的代码:Android 从Assets文件夹读取pdf文件,android,pdf,Android,Pdf,我有从sdcard获取文件的代码,并使用名为PDFViewer.jar的jar显示pdf文件,工作起来很有魅力,现在我在Assets文件夹中有了pdf文件,如何获取文件并显示 这是我从SD卡读取pdf的代码: public class First extends ListActivity { String[] pdflist; File[] imagelist; @Override public void onCreate(Bundle savedInstanc
public class First extends ListActivity {
String[] pdflist;
File[] imagelist;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
File images = Environment.getExternalStorageDirectory();
imagelist = images.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return ((name.endsWith(".pdf")));
}
});
pdflist = new String[imagelist.length];
for (int i = 0; i < imagelist.length; i++) {
pdflist[i] = imagelist[i].getName();
}
this.setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, pdflist));
}
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
String path = imagelist[(int) id].getAbsolutePath();
openPdfIntent(path);
}
private void openPdfIntent(String path) {
try {
final Intent intent = new Intent(First.this, Second.class);
intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, path);
startActivity(intent);
} catch (Exception e) {
e.printStackTrace();
}
}
}
package android.pdf.reader;
import net.sf.andpdf.pdfviewer.PdfViewerActivity;
import android.os.Bundle;
public class Second extends PdfViewerActivity
{
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
public int getPreviousPageImageResource() {
return R.drawable.left_arrow;
}
public int getNextPageImageResource() {
return R.drawable.right_arrow;
}
public int getZoomInImageResource() {
return R.drawable.zoom_in;
}
public int getZoomOutImageResource() {
return R.drawable.zoom_out;
}
public int getPdfPasswordLayoutResource() {
return R.layout.pdf_file_password;
}
public int getPdfPageNumberResource() {
return R.layout.dialog_pagenumber;
}
public int getPdfPasswordEditField() {
return R.id.etPassword;
}
public int getPdfPasswordOkButton() {
return R.id.btOK;
}
public int getPdfPasswordExitButton() {
return R.id.btExit;
}
public int getPdfPageNumberEditField() {
return R.id.pagenum_edit;
}
}
public类首先扩展ListActivity{
字符串[]pdflist;
文件[]图像列表;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
文件images=Environment.getExternalStorageDirectory();
imagelist=images.listFiles(新文件名过滤器(){
公共布尔接受(文件目录,字符串名称){
返回((name.endsWith(.pdf));
}
});
pdflist=新字符串[imagelist.length];
对于(int i=0;i
您能详细说明一下吗?当我将pdflist传递给适配器时,您问我如何读取pdf文件-正确吗?在资产文件夹中,如果您有一个名为pdf_name.pdf的pdf文件,那么您可以通过调用Android的AssetManager的open方法来读取它。
AssetManager assetManager = getAssets();
InputStream ims assetManager.open("pdf_name.pdf");