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    <p>First,GC will not recycle the memory at once you called. Here are some advice from android developer website:</p> <ol> <li><p>Do not keep long-lived references to a context-activity (a reference to an activity should have the same life cycle as the activity itself)</p></li> <li><p>Try using the context-application instead of a context-activity</p></li> <li><p>Avoid non-static inner classes in an activity if you don't control their life cycle, use a static inner class and make a weak reference to the activity inside. The solution to this issue is to use a static inner class with a WeakReference to the outer class, as done in ViewRoot and its W inner class for instance</p></li> <li><p>A garbage collector is not an insurance against memory leaks</p></li> </ol> <p>Second, try to use BitmapFactory.options when you do not very care the quality of the bitmap.</p> <p>Third, use try catch to process the OutOfMemory exception in catch block.</p> <p>Finally, Use <a href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;sqi=2&amp;ved=0CB4QFjAA&amp;url=http://eclipse.org/mat/&amp;ei=yGzdTuuKL4bwrQe6oe2oBA&amp;usg=AFQjCNGsu8KMqb5mhWwGpV02A1R6V_gzmA&amp;sig2=cpTLTHe3yaLU0rlQKzoqkQ">Memory Analyzer</a> . Open DDMS in Eclipse, in the toolbar there is a update heap button. you can use this to generate a hprof file, then use hprof-conv tool in your andorid-sdk-tools directory to convert the file to the specified format file that Memory Analyzer can read. Now you can use the Memory Analyzer to analysis the possible memory leak. It's really a good tool that will give you many suggestions to avoid outofmemory.</p> <p>Hope this will help you, If you find some better methods please tell me, i also face the outofmemory in my app.</p>
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    1. CO_Third, use try catch to process the OutOfMemory exception in catch block._ Never ever, ever do that. It is always a bad idea and the results, at best are unpredictable. I lean toward conclusion that once you get low memory condition your app is pretty much doomed so the best is to concentrate on prevention. For the prevention - your points are valid and valuable but again, the question was "how to recover"
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    2. COAnyways - I like the content of the answer so I'll mark it as answered unless I get a better one
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    3. CO^-^, i always wish a better one, OutOfMemory is really a tough problem.
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