DataApi.DataListener
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Known Indirect Subclasses
Public Methods
public abstract void
onDataChanged
( DataEventBuffer
dataEvents)
Notification that a set of data items have been changed or deleted. The data buffer
is released upon completion of this method. If a caller wishes to use the events
outside this callback, they should be sure to freeze
the DataEvent
objects they wish to use.
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Last updated 2024-10-31 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-10-31 UTC."],[[["\u003cp\u003e\u003ccode\u003eDataApi.DataListener\u003c/code\u003e is deprecated; use \u003ccode\u003eDataClient.OnDataChangedListener\u003c/code\u003e instead.\u003c/p\u003e\n"],["\u003cp\u003eIt was used to receive data events in wearables, triggered by changes or deletions.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eonDataChanged()\u003c/code\u003e is the key method, providing a buffer of \u003ccode\u003eDataEvent\u003c/code\u003e objects reflecting the changes.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eWearableListenerService\u003c/code\u003e can also be used to handle similar data and connectivity events.\u003c/p\u003e\n"]]],["`DataApi.DataListener` is a deprecated interface for receiving data events. Instead, `DataClient.OnDataChangedListener` should be used. `DataApi.DataListener` uses `onDataChanged` method that triggers when data items change or are deleted. This method receives a `DataEventBuffer`, which must be processed before it is released. If the data is used outside of `onDataChanged`, the `DataEvent` objects need to be frozen.\n"],null,["# DataApi.DataListener\n\npublic static interface **DataApi.DataListener** \n\n|---|---|---|\n| Known Indirect Subclasses [DataClient.OnDataChangedListener](/android/reference/com/google/android/gms/wearable/DataClient.OnDataChangedListener), [WearableListenerService](/android/reference/com/google/android/gms/wearable/WearableListenerService) |-------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [DataClient.OnDataChangedListener](/android/reference/com/google/android/gms/wearable/DataClient.OnDataChangedListener) | Used with [DataClient.addListener(DataClient.OnDataChangedListener)](/android/reference/com/google/android/gms/wearable/DataClient#addListener(com.google.android.gms.wearable.DataClient.OnDataChangedListener)) to receive data events. | | [WearableListenerService](/android/reference/com/google/android/gms/wearable/WearableListenerService) | Receives events from other nodes, such as data changes, messages or connectivity events. | |||\n\n**This interface is deprecated.** \n\nUse [DataClient.OnDataChangedListener](/android/reference/com/google/android/gms/wearable/DataClient.OnDataChangedListener).\n\nUsed with [DataApi.addListener(GoogleApiClient, DataApi.DataListener)](/android/reference/com/google/android/gms/wearable/DataApi#addListener(com.google.android.gms.common.api.GoogleApiClient,%20com.google.android.gms.wearable.DataApi.DataListener)) to receive data\nevents. \n\n##### See Also\n\n- [WearableListenerService](/android/reference/com/google/android/gms/wearable/WearableListenerService) \n\n### Public Method Summary\n\n|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract void | [onDataChanged](/android/reference/com/google/android/gms/wearable/DataApi.DataListener#onDataChanged(com.google.android.gms.wearable.DataEventBuffer))([DataEventBuffer](/android/reference/com/google/android/gms/wearable/DataEventBuffer) dataEvents) Notification that a set of data items have been changed or deleted. |\n\nPublic Methods\n--------------\n\n#### public abstract void **onDataChanged** ([DataEventBuffer](/android/reference/com/google/android/gms/wearable/DataEventBuffer) dataEvents)\n\nNotification that a set of data items have been changed or deleted. The data buffer\nis released upon completion of this method. If a caller wishes to use the events\noutside this callback, they should be sure to [freeze](/android/reference/com/google/android/gms/common/data/Freezable#freeze())\nthe [DataEvent](/android/reference/com/google/android/gms/wearable/DataEvent)\nobjects they wish to use."]]
