getSystemService(Context.FINGERPRINT_SERVICE) error

Question

我使用以下代码：

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

context.fingerprint_service像错误一样被红色下划线，它建议：

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。

尽管我有一个错误，但我的应用程序运行并且工作正常。当我启动一个新项目时，同一代码根本没有警告。

我知道这不是一个大问题，但它使我烦恼。建议plz？

Answer 1

我解决了它..

我有几个较旧的项目作为我的项目中的图书馆及其目标SDK，并在其清单和Gradle文件中编译了SDK，低于24。尽管我以前被允许构建此东西，但我遇到了一些问题我更新所有内容后修复了。

我解决了类似于所有com.android.support库必须使用完全相同的版本规范