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BluetoothDevice.getName()ʹ ཪΒΕͨ @MoyuruAizawa
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Moyuru Aizawa Software Engineer of Catlog, RABO. Previously at Azit, CyberAgent, and Eureka. Love Metal, Hardcore and EDM. MoyuruAizawa
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ಛʹΦνͷͳ͍Λ͠·͢
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͜ΕΒͷϋʔυΣΞͷηοτΞοϓ Android͔ΒBluetoothܦ༝Ͱߦͬͯ·͢
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ϋʔυΣΞͱ BluetoothDevice/BluetoothGatt ͱ͍͏APIΛ௨ͯ͡௨৴͠·͢
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BluetoothDevice.getName()Ͱ ϋʔυΣΞͷnameΛऔಘͰ͖·͢
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AndroidͷBluetoothLeScannerΛ ͔ͭͬͯपғͷσόΠεΛݕࡧ͢Ε Θ͔Γ·͕͢
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CatlogͷϋʔυΣΞʹͯ͢ ݸମݻ༗ͷname͕ઃఆ͞Ε͍ͯ·͢
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BluetoothDevice.getName()ͷ ฦΓnullableͷStringͰ͕͢
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CatlogͷϋʔυΣΞ૬खͳΒ ඞͣString͕ฦͬͯ͘Δ͜ͱ͕ ظ͞Ε·͢
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14 betaΛೖΕͯࢼͨ݁͠Ռ BluetoothDevice.getName()ͷڍಈ͕ ͓͔͍͜͠ͱ͕໌
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Catlog HomeͷWi-FiઃఆͷͨΊʹ पғͷCatlog HomeΛscan ͜ͷ࣌ͰCatlog Homeͷname͕औಘͰ͖͍ͯΔ
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ઃఆϑϩʔΛਐΊͯߦͬͯ ͜ͷը໘Ͱprimary buttonΛԡ͢ͱ ͏ҰBluetoothDevice.getName()Λ͠·͢
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͵ΔΆ
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લͷը໘Ͱname͕ظ௨Γʹฦͬ ͖͍͕ͯͯͨŊͳ͔ͥnull͕ฦͬͯ͘Δ
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ͳͥ…?
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ͨΊ͠ʹ͜ͷը໘ͰLaunchedEffectΛ͔ͭͬͯ BluetoothDevice.getName()Λ࣮ߦ͢Δͱ…
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ͪΌΜͱname͕ฦͬͯ͘Δ!!
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🤔
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ࢼ͠ʹŊ͜ͷը໘ΑΓલͷը໘ͰߦΘ Ε͍ͯΔBluetoothGattʹΑΔຊ֨త ͳ௨৴Λͯ͢ল͍ͯΈΔ
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primary buttonΛԡͯ͠ BluetoothDevice.getName()Λ࣮ߦ͢Δͱ…
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ͪΌΜͱname͕ฦ͖ͬͯͨ!!
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ŪƄŴƄŧƄũƄ….
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‣ ࠷ॳͷBluetoothDevice.getName()ਖ਼ৗ ‣ ී௨ʹύεϫʔυೖྗը໘ʹભҠ͖ͯͯ͠ŊଓϘλϯԡ͞Εͯ getName -> null ‣ ී௨ʹύεϫʔυೖྗը໘ʹભҠ͖ͯͯ͠ŊLaunchedEffectͰ͍͖ͳ ΓgetName -> ͱΕΔ ‣ લը໘ΛͿͬͱͯ͠ύεϫʔυೖྗը໘ʹભҠŊ͡Ίͯ BluetoothDeviceͱconnect͢ΔλΠϛϯάͰgetName -> ͱΕΔ ͜͜·ͰͰΘ͔͍ͬͯΔ͜ͱ
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BluetoothDevice.getNameͷ υΩϡϝϯτͱ࣮ΛΈͯΈΑ͏
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BluetoothDevice.getName Ωϟογϡͨ͠nameΛଈ࣌ฦ͢ Ωϟογϡ͕ͳ͔ͬͨΒnullʹͳΓ͑ΔŇ ͦΕͦ͏Ň
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͍··Ͱ(Android 13·Ͱ)Ͱ؍ଌͨ͜͠ͱͳ͔͕ͬͨ APIͷ༷ͱͯ͠ى͖ಘΔ (ͱ͍͑όάͩͱࢥ͏Μ͚ͩͲ)
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ΑʔΘ͔ΒΜ͔Βਖ਼ࣜϦϦʔεΛ·ͪ ͭͭŊͱΓ͋͑ͣҰͱΕͨnameେ ࣄʹେࣄʹը໘ؒΛӪ͖ճ͠ͱ͘
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͓͠·͍