Activity调用的方法

public class PDFActivity extends Activity implements OnPageChangeListener {

public static final String PDF_NAME = "xxx.pdf";// 书名

private PDFView pdfView;

private TextView pdf_tv_num;

private int bookPage = 1;

public final static String BOOKID = "bookId";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_pdf);

pdfView = (PDFView) findViewById(R.id.pdfView);

pdf_tv_num = (TextView) findViewById(R.id.pdf_tv_num);

String bId = mCache.getAsString("pdfPage");// 获取上次读取的页数

if (!isNEB(bId)) {

bookPage = Integer.parseInt(bId);

}

String path = activity.getFilesDir().getAbsolutePath();// 获取路径

File file = new File(path, PDF_NAME);

if (file.exists()) {

pdfView.fromFile(file).defaultPage(bookPage).onPageChange(this)

.load();// 显示要看的第几页

}

}

public void onPageChanged(int page, int pageCount) {

bookPage = page;

pdf_tv_num.setText(page + "/" + pageCount);// page正在看的页数，pageCount总页数

}

@Override

protected void onStop() {

super.onStop();

// TODO 这里先保存的页数 bookPage

// 如果退出要删除pdf,执底下的代码，否则不需要

String path = activity.getFilesDir().getAbsolutePath();

File file = new File(path, PDF_NAME);

if (file.exists()) {

file.delete();

finish();

}

}

}

布局

android:layout_width="match_parent"

android:layout_height="match_parent" >

android:id="@+id/pdfView"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

android:id="@+id/pdf_tv_num"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentBottom="true"

android:layout_centerHorizontal="true"

android:layout_marginBottom="10dp"

android:textColor="#000000"

android:textSize="12sp" />