outofmemory error any way to release memory

[email protected]
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10 years 10 months ago #9034 by [email protected]

outofmemory error any way to release memory was created by [email protected]

hi,

we are implementing PDFLayoutView with viewpager to open list of pdf file. we create our own thumbnail so that user can switch between pdf file easily.

out of memory occur when we are keep selecting different pdf file from the thumbnail. clicking the thumbnail we will call viewpager.setCurrentItem(index)

any way to release memory so that out of memory error can avoid in viewpager fragment

support
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10 years 10 months ago #9037 by support

Replied by support on topic outofmemory error any way to release memory

It seems you're taking your files opened all at the same time.
That behavior is really memory consuming.
Your document lifecycle should be tight to the actual Page from ViewPager: destroy documents as soon as a Page is destroyed.

[email protected]
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10 years 10 months ago #9039 by [email protected]

Replied by [email protected] on topic outofmemory error any way to release memory

i below is my onDestroy, onDestroyView and onDetach of my fragment class:

Code:

@Override
	public void onDestroyView() {
		super.onDestroyView();
		onDestroy();

	}

	@Override
	public void onDestroy() {
		super.onDestroy();
		Log.d("DD", "onDestroy onDestroy onDestroy onDestroy");
		try {

			if (m_reader != null) {
				m_reader.PDFClose();
			}
			m_reader = null;
			if (m_doc != null) {
				m_doc.Close();
			}
			m_doc = null;
			// if (mContentView != null)
			// mContentView.removeAllViews();
			// mContentView = null;
			/*
			 * if (m_layout != null) m_layout.removeAllViews(); m_layout = null;
			 */

			Global.RemoveTmp();
			// super.onDestroy();
			// System.gc();

		} catch (Exception e) {
			e.printStackTrace();
		}

	}

	@Override
	public void onDetach() {
		super.onDetach();
		onDestroy();
	}

i had call

Code:

m_reader.PDFClose()

and

Code:

m_doc.Close();

in onDestroy. issue still persist.

FYI, this issue happen frequently after i implement

Code:

PDFAESStream

encryption

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