ios - HMCharacteristicWriteAction what to pass for targetValue -

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in homekit code is

hmaction *myaction = [[hmcharacteristicwriteaction alloc]  initwithcharacteristic:[[lightbulbservice characteristics] objectatindex:0] targetvalue:characteristicvalue];

hmcharacteristicwriteaction have method initwithcharacterstic requried 2 parameter

1) initwithcharacteristic need pass, hmservice object.

2) targetvalue, need pass targetvalue ?

i need know is, target value characteristic ?

the target value depends on characteristic writing. lightbulb may support characteristics such as

  • hmcharacteristictypehue - integer 0-360 (degrees)
  • hmcharacteristictypesaturation - integer 0 - 100 (percentage)
  • hmcharacteristictypebrightness - integer 0 - 100 (percentage).
  • hmcharacteristictypepowerstate - boolean on or off.

you can pretty guarantee lightbulb support hmcharacteristictypepowerstate. others maybe not. lightbulb can support additional characteristics, defined manufacturer - strobe might support 'blink rate' characteristic example.


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