getSystemService(Context.FINGERPRINT_SERVICE) 错误

Question

我使用以下代码：

FingerprintManager fingerprintManager = (FingerprintManager) getBaseContext().getSystemService(Context.FINGERPRINT_SERVICE);

Context.FINGERPRINT_SERVICE 像错误一样以红色下划线显示，它表明：

Must be one of: Context.POWER_SERVICE, Context.WINDOW_SERVICE, Context.LAYOUT_INFLATER_SERVICE, Context.ACCOUNT_SERVICE, Context.ACTIVITY_SERVICE, Context.ALARM_SERVICE, Context.NOTIFICATION_SERVICE, Context.ACCESSIBILITY_SERVICE, android.content.Context.CAPTIONING_SERVICE, Context.KEYGUARD_SERVICE, Context.LOCATION_SERVICE, Context.SEARCH_SERVICE, Context.SENSOR_SERVICE, android.content.Context.STORAGE_SERVICE, Context.WALLPAPER_SERVICE, Context.VIBRATOR_SERVICE, Context.CONNECTIVITY_SERVICE, android.content.Context.NETWORK_STATS_SERVICE, Context.WIFI_SERVICE, android.content.Context.WIFI_P2P_SERVICE, android.content.Context.NSD_SERVICE, Context.AUDIO_SERVICE, android.content.Context.FINGERPRINT_SERVICE, android.content.Context.MEDIA_ROUTER_SERVICE, Context.TELEPHONY_SERVICE, android.content.Context.TELEPHONY_SUBSCRIPTION_SERVICE, android.content.Context.CARRIER_CONFIG_SERVICE, android.content.Context.TELECOM_SERVICE, Context.CLIPBOARD_SERVICE, Context.INPUT_METHOD_SERVICE, android.content.Context.TEXT_SERVICES_MANAGER_SERVICE, android.content.Context.APPWIDGET_SERVICE, Context.DROPBOX_SERVICE, Context.DEVICE_POLICY_SERVICE, Context.UI_MODE_SERVICE, android.content.Context.DOWNLOAD_SERVICE, android.content.Context.NFC_SERVICE, android.content.Context.BLUETOOTH_SERVICE, android.content.Context.USB_SERVICE, android.content.Context.LAUNCHER_APPS_SERVICE, android.content.Context.INPUT_SERVICE, android.content.Context.DISPLAY_SERVICE, android.content.Context.USER_SERVICE, android.content.Context.RESTRICTIONS_SERVICE, android.content.Context.APP_OPS_SERVICE, android.content.Context.CAMERA_SERVICE, android.content.Context.PRINT_SERVICE, android.content.Context.CONSUMER_IR_SERVICE, android.content.Context.TV_INPUT_SERVICE, android.content.Context.USAGE_STATS_SERVICE, android.content.Context.MEDIA_SESSION_SERVICE, android.content.Context.BATTERY_SERVICE, android.content.Context.JOB_SCHEDULER_SERVICE, android.content.Context.MEDIA_PROJECTION_SERVICE, android.content.Context.MIDI_SERVICE, android.content.Context.HARDWARE_PROPERTIES_SERVICE, android.content.Context.SHORTCUT_SERVICE, android.content.Context.SYSTEM_HEALTH_SERVICE

我的compileSdkVersion是24.

虽然我有这个错误，但我的应用程序运行正常。当我开始一个新项目时，相同的代码根本没有任何警告。

我知道这不是什么大问题，但让我很烦恼。有什么建议吗？

Answer 1

我解决了..

我的项目中有几个较旧的项目作为库，它们的清单中的目标 sdks 和编译的 sdks 和 gradle 文件低于 24。虽然我之前被允许构建这个东西，但我有一些问题在我更新所有内容后得到解决。

我在解决类似于

的问题后找到了这个解决方案

getSystemService(Context.FINGERPRINT_SERVICE) 错误

getSystemService(Context.FINGERPRINT_SERVICE) error

android

fingerprint

android-fingerprint-api