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Android Development
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Temporary Images

The emulator creates two writeable images at startup that it deletes at device power-off. The images are:

  • A writable copy of the Android system image
  • The /cache partition image

The emulator does not permit renaming the temporary system image or persisting it at device power-off.

The /cache partition image is initially empty, and is used by the browser to cache downloaded web pages and images. The emulator provides an -cache <file>, which specifies the name of the file at which to persist the /cache image at device power-off. If <file> does not exist, the emulator creates it as an empty file.

You can also disable the use of the cache partition by specifying the -nocache option at startup.

Android Development
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