在Android中，我怎么能战胜我的＆QUOT;内存＆QUOT的;错误？ [英] In Android, how can I overcome my "Out of Memory" error?
问题描述
我有一个使用标签的活动。的选项卡的内容被拉动从SQLite数据库拉动。每次显示的呼叫到数据库，并在观看区域的内容做了一个选项卡上的用户水龙头。
I have an activity that uses tabs. The content of the tab is pulled is pulled from the SQLite database. Everytime the user taps on a tab a call is made to the database and the content in the viewing area is displayed.
内容是ImageViews，点击后，与该活动的其他领域互动的名单。我不加载一次和隐藏视图的所有图像项目> N多 - 因为这可以在1有所不同。这样做真的可以导致装载活动有一定的问题。
The content is list of ImageViews that, when clicked, interact with other areas of the activity. Since this can vary between 1 -> n number of items I'm not loading all the images at once and hiding views. Doing this could really cause some issue with loading the activity.
这些标签的工作，但我通过我的标签最终得到之间切换的内存不足的错误：
The tabs work but as I go through switching between tabs I end up getting an out of memory error:
E/AndroidRuntime(10469): FATAL EXCEPTION: main
E/AndroidRuntime(10469): java.lang.OutOfMemoryError
E/AndroidRuntime(10469): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
E/AndroidRuntime(10469): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:613)
E/AndroidRuntime(10469): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:439)
E/AndroidRuntime(10469): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:817)
E/AndroidRuntime(10469): at android.graphics.drawable.Drawable.createFromStream(Drawable.java:776)
E/AndroidRuntime(10469): at com.testapplication.testapplicationconfigurator.Configurator$2.createTabContent(Configurator.java:405)
E/AndroidRuntime(10469): at android.widget.TabHost$FactoryContentStrategy.getContentView(TabHost.java:735)
E/AndroidRuntime(10469): at android.widget.TabHost.setCurrentTab(TabHost.java:430)
E/AndroidRuntime(10469): at android.widget.TabHost$2.onTabSelectionChanged(TabHost.java:161)
E/AndroidRuntime(10469): at android.widget.TabWidget$TabClickListener.onClick(TabWidget.java:563)
E/AndroidRuntime(10469): at android.view.View.performClick(View.java:4383)
E/AndroidRuntime(10469): at android.view.View$PerformClick.run(View.java:18097)
E/AndroidRuntime(10469): at android.os.Handler.handleCallback(Handler.java:725)
E/AndroidRuntime(10469): at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime(10469): at android.os.Looper.loop(Looper.java:176)
E/AndroidRuntime(10469): at android.app.ActivityThread.main(ActivityThread.java:5279)
E/AndroidRuntime(10469): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(10469): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(10469): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
E/AndroidRuntime(10469): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
E/AndroidRuntime(10469): at dalvik.system.NativeStart.main(Native Method)
所使用的图像是设备如
The image being used is a stored location on the devices such as
/storage/emulated/0/TestApplicaiton/2/maUdwcbaLU.jpg
我用的位置，使之成为一个可绘制对象，并将绘制为背景给ImageView的：
I use the location to make it into a drawable object and place the drawable as the background to an ImageView:
ImageView iv = new ImageView(Configurator.this);
int ivHT = (int) (getResources().getDimension(
R.dimen.iv_height) / getResources()
.getDisplayMetrics().density);
LayoutParams params = new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT);
// set margins (left,top,right,bottom)
params.setMargins(0, 0, 40, 0);
iv.setLayoutParams(params);
iv.getLayoutParams().height = ivHT;
iv.getLayoutParams().width = ivHT;
final String imageLoc = partData.get("productIndexImageLoc");
Log.d("imageLoc",imageLoc);
InputStream imageStream;
try {
imageStream = new FileInputStream(imageLoc);
Drawable x = Drawable.createFromStream(imageStream, null);
iv.setImageDrawable(x);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
partData仅仅是存储每个部分，如价格，名称等内容和值LinkedHashMap中
partData is just a LinkedHashMap to store content and values for each part such as price, name, etc.
这似乎pretty明显，它是与位图/绘制对象我创建被保留在内存中。有没有一种方法，当有人点击一个新的选项卡，清除使用的内存或从内存中清除项目一旦它的视图中使用？
It seems pretty obvious that it has something to do with the Bitmap/Drawable I'm creating being left in memory. Is there a way to clear that used memory when someone taps a new tab or clear the item from memory once it's used in the view?
推荐答案
是当位图不是更加有用，您可以拨打：
Yes when the bitmap is not more usefull you can call:
bitmap.recycle()
如果你没有这种可能性，你可以在清单中添加更多的堆（ONLI> API 2.3）：
If you not have this possibility you can add more heap in manifest(Onli > API 2.3):
android:largeHeap="true"
我建议阅读本文档找到Android的使用位图来工作的好方法：
I suggest to read this documentation to find the good way to work with bitmap in android:
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