leadtools的demo有内存泄漏

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在android 平台运行LEADTOOLS18_Android\Examples\Android\DatasetDemo 的demo,频繁加载本地dicom文件，native heap 逐渐变大.

.写这个demo的开发人员也不好好测试一下

AvoCaDolol · AvoCaDolol

嘿嘿，你也说了是Demo嘛，就跟HelloWorld一个类型的，肯定是Bug很多。
请不要在意这些细节，Demo的产生主要为了展示功能，类似if (dicomFile == null)这种判断肯定是木有啦。
另外，对于释放内存以及垃圾回收考虑是木有滴，所以只能靠你自行发掘了。

以上，谢谢。

jssyy · jssyy

做如下判断 if (_loadedImage != null){
               _loadedImage.dispose();
               _loadedImage = null;
            }
好像native heap内存没有变小，想资源没有释放一样？请问这是什么情况，是函数用的不对吗？

jssyy · jssyy

代码如下

package leadtools.datasetdemo;
import leadtools.ILeadStream;
import leadtools.LeadEvent;
import leadtools.LeadSizeF;
import leadtools.LeadStreamFactory;
import leadtools.RasterColor;
import leadtools.RasterImage;
import leadtools.RasterImageFormat;
import leadtools.RasterSizeFlags;
import leadtools.codecs.RasterCodecs;
import leadtools.controls.ImageViewerCenterAtInteractiveMode;
import leadtools.controls.ImageViewerInteractiveMode;
import leadtools.controls.ImageViewerNoneInteractiveMode;
import leadtools.controls.ImageViewerSizeMode;
import leadtools.controls.ImageViewerMagnifyGlassInteractiveMode;
import leadtools.controls.ImageViewerPanZoomInteractiveMode;
import leadtools.controls.RasterImageViewer;
import leadtools.demos.Messager;
import leadtools.demos.OpenFileDialog;
import leadtools.demos.Progress;
import leadtools.demos.SplashScreen;
import leadtools.demos.Support;
import leadtools.demos.Utils;
import leadtools.dicom.DicomDataSet;
import leadtools.dicom.DicomDataSetLoadFlags;
import leadtools.dicom.DicomElement;
import leadtools.dicom.DicomEngine;
import leadtools.dicom.DicomGetImageFlags;
import leadtools.dicom.DicomLoadAsyncCompletedListener;
import leadtools.dicom.DicomTag;
import leadtools.imageprocessing.ResizeCommand;
import leadtools.imageprocessing.core.ResizeInterpolateCommand;
import leadtools.imageprocessing.core.ResizeInterpolateCommandType;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.graphics.Color;
import android.graphics.PointF;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.net.URI;
import java.net.URISyntaxException;
public class DatasetDemoActivity extends Activity {
private DicomDataSet _loadedDataSet;
private RasterImageViewer _imageViewer;
private TextView _noImageTextView;
private RasterImage _loadedImage;
private View _moreOptionsLinearLayout;
private ImageViewerSizeMode _currentSizeMode;
private ProgressDialog mProgressDlg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DicomEngine.startup();
if (Support.isKernelExpired()) {
Messager.showKernelExpiredMessage(this, new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
finish();
}
});
return;
}
SplashScreen.show(this);
_imageViewer = (RasterImageViewer) findViewById(R.id.imageviewer);
_imageViewer.setImage(_loadedImage);
_imageViewer.setAutoFreeImages(true);
_noImageTextView = (TextView) findViewById(R.id.noImageTextView);
_moreOptionsLinearLayout = (View) findViewById(R.id.moreOptionsLinearLayout);
_currentSizeMode = ImageViewerSizeMode.FIT_ALWAYS;
_imageViewer.setSizeMode(_currentSizeMode);
_imageViewer.setTouchInteractiveMode(new ImageViewerPanZoomInteractiveMode());
}
public void onClickMoreButton(View view) {
Button moreButton = (Button) view;
if (_moreOptionsLinearLayout.getVisibility() == View.GONE) {
moreButton.setText("Less...");
_moreOptionsLinearLayout.setVisibility(View.VISIBLE);
} else {
moreButton.setText("More...");
_moreOptionsLinearLayout.setVisibility(View.GONE);
}
}
//频繁调用此函数会出现内存泄漏
public void onClickFileOption(View view) {
FileInputStream fileInputStream = null;
try {
fileInputStream = new FileInputStream("/sdcard/测试/测试/CR/CR.dcm");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
if (fileInputStream != null) {
ILeadStream leadStream = LeadStreamFactory.create(fileInputStream, true);
if (leadStream != null) {
mProgressDlg = Progress.show(DatasetDemoActivity.this, "", "Loading");
DatasetDemoActivity.this.loadDataSetFromStream(leadStream);
}
}
}
private void loadDataSetFromStream(final ILeadStream stream) {
String tempPath = "/data/data/leadtools.datasetdemo/";
final DicomDataSet ds = new DicomDataSet(tempPath);
ds.addLoadAsyncCompletedListener(new DicomLoadAsyncCompletedListener() {
@Override
public void onLoadAsyncCompleted() {
_loadedDataSet = ds;
DicomElement pixelDataElement = _loadedDataSet.findFirstElement(null, DicomTag.PIXEL_DATA, true);
if (pixelDataElement != null) {
int bitmapCount = ds.getImageCount(pixelDataElement);
_noImageTextView.setVisibility(View.GONE);
if (_loadedImage != null) {
_loadedImage.dispose();
_loadedImage = null;
}
_loadedImage = getDataSetImages(_loadedDataSet, pixelDataElement, bitmapCount);
_imageViewer.setImage(_loadedImage);
_imageViewer.setSizeMode(_currentSizeMode);
_imageViewer.setPaintFlags(2);
Progress.close(mProgressDlg);
}
}
});
ds.loadAsync(stream, DicomDataSetLoadFlags.LOAD_AND_CLOSE);
}
public RasterImage getDataSetImages(DicomDataSet ds, DicomElement element, int imageCount) {
RasterImage resultImage = null;
for (int x = 0; x < imageCount; x++) {
RasterImage image = null;
try {
image = _loadedDataSet.getImage(element, x, 0, DicomGetImageFlags.AUTO_APPLY_MODALITY_LUT |
DicomGetImageFlags.AUTO_APPLY_VOI_LUT);
} catch (Exception ex) {
//DemoUtilities.ShowToast(ex);
}
if (image != null) {
if (x == 0) {
resultImage = image;
} else {
resultImage.addPage(image);
}
} else {
//string errorMsg = string.Format("Note that this dataset contains an invalid image. No image will be displayed ");
//DemoUtilities.ShowToast(errorMsg);
break;
}
}
return resultImage;
}
}

复制代码

我已经调用dispose释放RasterImage内存，native heap 还是持续增长，是不是leadtools 的库有内存泄漏，还是我使用的不对，求解答，谢谢！！！！！！！

jssyy · jssyy

代码如下：

package leadtools.datasetdemo;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnDismissListener;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import leadtools.ILeadStream;
import leadtools.LeadStreamFactory;
import leadtools.RasterImage;
import leadtools.controls.ImageViewerPanZoomInteractiveMode;
import leadtools.controls.ImageViewerSizeMode;
import leadtools.controls.RasterImageViewer;
import leadtools.demos.Messager;
import leadtools.demos.Progress;
import leadtools.demos.SplashScreen;
import leadtools.demos.Support;
import leadtools.dicom.DicomDataSet;
import leadtools.dicom.DicomDataSetLoadFlags;
import leadtools.dicom.DicomElement;
import leadtools.dicom.DicomEngine;
import leadtools.dicom.DicomGetImageFlags;
import leadtools.dicom.DicomLoadAsyncCompletedListener;
import leadtools.dicom.DicomTag;
public class DatasetDemoActivity extends Activity {
private DicomDataSet _loadedDataSet;
private RasterImageViewer _imageViewer;
private TextView _noImageTextView;
private RasterImage _loadedImage;
private ImageViewerSizeMode _currentSizeMode;
private ProgressDialog mProgressDlg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DicomEngine.startup();
if (Support.isKernelExpired()) {
Messager.showKernelExpiredMessage(this, new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
finish();
}
});
return;
}
SplashScreen.show(this);
_imageViewer = (RasterImageViewer) findViewById(R.id.imageviewer);
_imageViewer.setImage(_loadedImage);
_imageViewer.setAutoFreeImages(true);
_noImageTextView = (TextView) findViewById(R.id.noImageTextView);
_currentSizeMode = ImageViewerSizeMode.FIT_ALWAYS;
_imageViewer.setSizeMode(_currentSizeMode);
_imageViewer.setTouchInteractiveMode(new ImageViewerPanZoomInteractiveMode());
}
//频繁调用此函数会出现内存泄漏
public void onClick(View view) {
FileInputStream fileInputStream = null;
try {
fileInputStream = new FileInputStream("/sdcard/测试/测试/CR/CR.dcm");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
if (fileInputStream != null) {
ILeadStream leadStream = LeadStreamFactory.create(fileInputStream, true);
if (leadStream != null) {
mProgressDlg = Progress.show(DatasetDemoActivity.this, "", "Loading");
DatasetDemoActivity.this.loadDataSetFromStream(leadStream);
}
}
}
private void loadDataSetFromStream(final ILeadStream stream) {
String tempPath = "/data/data/leadtools.datasetdemo/";
final DicomDataSet ds = new DicomDataSet(tempPath);
ds.addLoadAsyncCompletedListener(new DicomLoadAsyncCompletedListener() {
@Override
public void onLoadAsyncCompleted() {
_loadedDataSet = ds;
DicomElement pixelDataElement = _loadedDataSet.findFirstElement(null, DicomTag.PIXEL_DATA, true);
if (pixelDataElement != null) {
int bitmapCount = ds.getImageCount(pixelDataElement);
_noImageTextView.setVisibility(View.GONE);
if (_loadedImage != null) {
_loadedImage.dispose();
_loadedImage = null;
}
_loadedImage = getDataSetImages(_loadedDataSet, pixelDataElement, bitmapCount);
_imageViewer.setImage(_loadedImage);
_imageViewer.setSizeMode(_currentSizeMode);
_imageViewer.setPaintFlags(2);
Progress.close(mProgressDlg);
}
}
});
ds.loadAsync(stream, DicomDataSetLoadFlags.LOAD_AND_CLOSE);
}
public RasterImage getDataSetImages(DicomDataSet ds, DicomElement element, int imageCount) {
RasterImage resultImage = null;
for (int x = 0; x < imageCount; x++) {
RasterImage image = null;
try {
image = _loadedDataSet.getImage(element, x, 0, DicomGetImageFlags.AUTO_APPLY_MODALITY_LUT |
DicomGetImageFlags.AUTO_APPLY_VOI_LUT);
} catch (Exception ex) {
//DemoUtilities.ShowToast(ex);
}
if (image != null) {
if (x == 0) {
resultImage = image;
} else {
resultImage.addPage(image);
}
} else {
//string errorMsg = string.Format("Note that this dataset contains an invalid image. No image will be displayed ");
// DemoUtilities.ShowToast(errorMsg);
break;
}
}
return resultImage;
}
}

复制代码

我已经调用dispose释放RasterImage内存，native heap 还是持续增长，是不是leadtools 的库有内存泄漏，还是我使用的不对，求解答，谢谢！！！！！！！

AvoCaDolol · AvoCaDolol

OK，问题已经收到。我这边无法再现这个问题。

我有个请求，能否将你做的程序打个包发给我，我会跟厂商联系请求技术支持。

AvoCaDolol · AvoCaDolol

jssyy 发表于 2016-4-29 17:23
代码如下

另外，我想知道你下载的Android开发版是什么时候下载的，因为4月20号有一版更新，修复了很多问题。

jssyy · jssyy

本帖最后由 jssyy 于 2016-5-3 13:37 编辑

代码已发，IDE 为android studio

有解决方法，及时答复，谢谢！！！！！！！！！

jssyy · jssyy

下载地址：http://leadtools.gcpowertools.com.cn/downloads/?category=main，没有4月20最新，最新的下载android版的下载地址，可以发我一下吗

AvoCaDolol · AvoCaDolol

jssyy 发表于 2016-5-3 13:42
下载地址：http://leadtools.gcpowertools.com.cn/downloads/?category=main，没有4月20最新，最新的下载an ...

就是这个：http://leadtools.gcpowertools.com.cn/downloads/download/?pid=703
你可以下载一个最新版试试看，现在的最新版是94M的。

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[已处理] leadtools的demo有内存泄漏

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