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I just want to know how to work with Memory analyzer tool in android. Please tell me how to do this to know about memory leaks for a particular project. Can someone give me step wise procedure for this.
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Memory Analyzer helps you analyze Java™ dump files, Java heap dump files, and system dump files. This tool can analyze dump files that contain millions of objects, providing the following information: The retained sizes of objects. Processes that are preventing the garbage collector from collecting objects.
Tap Developer options and then tap Memory. In the resulting screen (Figure B), you'll see a list of the average memory used by the device in the past three hours (you can adjust the time frame, by tapping the time drop-down at the top). The Memory usage window in Android 12.
Use the Eclipse Memory Analyzer You may need to refresh your project (F5 on the project). Double-click the file and select the Leak Suspects Report. The overview page allows you to start the analysis of the heap dump. The dominator tree gives quickly an overview of the used objects.
The Android Runtime (ART) and Dalvik virtual machine use paging and memory-mapping (mmapping) to manage memory. This means that any memory an app modifies—whether by allocating new objects or touching mmapped pages—remains resident in RAM and cannot be paged out.
That's all. You'll se a list of possible leaks, but some of them are false-positive. I recommend you to run an activity you want to check leaks in several times and then run MAT again.
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Try Using the Memory Analyzer Tool (MAT)
Look at these articles:
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Write to hprof fails when you have not used android.permission.WRITE_EXTERNAL_STORAGE. As a special case when you are testing on device, check if your SD card is connected in Charge ONLY mode otherwise you wont have write access on SD Card
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