Mulai 27 Maret 2025, sebaiknya gunakan android-latest-release
, bukan aosp-main
, untuk mem-build dan berkontribusi pada AOSP. Untuk mengetahui informasi selengkapnya, lihat Perubahan pada AOSP.
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Referensi Struct light_state_t
#include <
lights.h
>
Parameter yang dapat ditetapkan untuk cahaya tertentu.
Tidak semua lampu harus mendukung semua parameter. Jika Anda dapat melakukan sesuatu yang kompatibel dengan versi lama, Anda harus melakukannya.
Definisi di baris
145
file
lights.h
.
Kebijakan yang digunakan oleh framework untuk mengelola kecerahan lampu. Saat ini nilainya adalah BRIGHTNESS_MODE_USER dan BRIGHTNESS_MODE_SENSOR.
Definisi di baris
173
dari file
lights.h
.
Warna LED dalam ARGB.
Lakukan yang terbaik di sini.
-
Jika lampu Anda hanya bisa berwarna merah atau hijau, jika mereka meminta biru, Anda harus memilih hijau.
-
Jika Anda hanya dapat melakukan gradien kecerahan, gunakan formula ini: kecerahan char tanpa tanda tangan = ((77*((color>>16)&0x00ff))
-
(150*((color>>8)&0x00ff)) + (29*(color&0x00ff))) >> 8;
-
Jika Anda hanya dapat mengaktifkan atau menonaktifkan, 0 berarti nonaktif, dan angka lainnya berarti aktif.
Byte tinggi harus diabaikan. Pemanggil akan menyetelnya ke 0xff (yang akan sesuai dengan 255 alfa).
Definisi di baris
160
dari file
lights.h
.
Lihat konstanta LIGHT_FLASH_*
Definisi di baris
165
dari file
lights.h
.
Dokumentasi untuk struct ini dibuat dari file berikut:
-
hardware/libhardware/include/hardware/
lights.h
Konten dan contoh kode di halaman ini tunduk kepada lisensi yang dijelaskan dalam Lisensi Konten. Java dan OpenJDK adalah merek dagang atau merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-27 UTC.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-07-27 UTC."],[],[],null,["# Android Hardware Abstraction Layer: light_state_t Struct Reference\n\nlight_state_t Struct Reference\n==============================\n\n[Data Fields](#pub-attribs) \nlight_state_t Struct Reference \n\n`\n#include \u003c\n`[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)`\n\u003e\n`\n\n|--------------|------------------------------------------------------------------------------------------|\n| Data Fields ----------- ||\n| unsigned int | [color](/reference/hal/structlight__state__t#aeedc2afa1e522527db2235d0700a3b0d) |\n| ||\n| int | [flashMode](/reference/hal/structlight__state__t#a1376dc4ef9189c6481681f82162911d5) |\n| ||\n| int | [flashOnMS](/reference/hal/structlight__state__t#a11119999eaf9274b752598740c137eee) |\n| ||\n| int | [flashOffMS](/reference/hal/structlight__state__t#a2a43b5608c96a4ce53d78e11cd718cf3) |\n| ||\n| int | [brightnessMode](/reference/hal/structlight__state__t#a29e93d1b3731de25515a118d9818517f) |\n| ||\n\n\nDetailed Description\n--------------------\n\n\nThe parameters that can be set for a given light.\n\n\nNot all lights must support all parameters. If you can do something backward-compatible, you should.\n\n\nDefinition at line\n[145](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\nField Documentation\n-------------------\n\n\n|--------------------|\n| int brightnessMode |\n\n\nPolicy used by the framework to manage the light's brightness. Currently the values are BRIGHTNESS_MODE_USER and BRIGHTNESS_MODE_SENSOR.\n\n\nDefinition at line\n[173](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\n|--------------------|\n| unsigned int color |\n\n\nThe color of the LED in ARGB.\n\n\nDo your best here.\n\n- If your light can only do red or green, if they ask for blue, you should do green.\n- If you can only do a brightness ramp, then use this formula: unsigned char brightness = ((77\\*((color\\\u003e\\\u003e16)\\&0x00ff))\n - (150\\*((color\\\u003e\\\u003e8)\\&0x00ff)) + (29\\*(color\\&0x00ff))) \\\u003e\\\u003e 8;\n- If you can only do on or off, 0 is off, anything else is on.\n\n\nThe high byte should be ignored. Callers will set it to 0xff (which would correspond to 255 alpha).\n\n\nDefinition at line\n[160](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\n|---------------|\n| int flashMode |\n\n\nSee the LIGHT_FLASH_\\* constants\n\n\nDefinition at line\n[165](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\n|----------------|\n| int flashOffMS |\n\n\nDefinition at line\n[167](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\n|---------------|\n| int flashOnMS |\n\n\nDefinition at line\n[166](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\nof file\n[lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)\n.\n\n*** ** * ** ***\n\nThe documentation for this struct was generated from the following file:\n\n- hardware/libhardware/include/hardware/ [lights.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/lights.h)"]]