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| java.lang.Object | |
| ↳ | android.os.TokenWatcher |
Helper class that helps you use IBinder objects as reference counted tokens. IBinders make good tokens because we find out when they are removed
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Construct the TokenWatcher
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| Public Methods | |||||||||||
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Record that this token has been acquired.
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Called when the number of active tokens goes from 0 to 1.
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Called when the number of active tokens goes from 1 to 0.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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Construct the TokenWatcher
| h | A handler to call acquired() and released()
on. If you don't care, just call it like this, although your thread
will have to be a Looper thread.
new TokenWatcher(new Handler()) |
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| tag | A debugging tag for this TokenWatcher |
Record that this token has been acquired. When acquire is called, and the current count is 0, the acquired method is called on the given handler.
| token | An IBinder object. If this token has already been acquired, no action is taken. |
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| tag | A string used by the dump() method for debugging,
to see who has references.
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Called when the number of active tokens goes from 0 to 1.
Called when the number of active tokens goes from 1 to 0.