fingerprint scanner android api

project. Using this API in Expo or Expokit does not require native settings (no native setup is required for using the This API within Expo or Expokit).Font Allows fonts to be loaded from the web and used in react native components. See Using the Custom Font guide for more detailed usage information. UsageExpo.Font.loadAsync (object) Expo.Font.loadAsync () A convenient way to load multiple fonts at o

sensor shuts down, and only if we re authorize the authenticate () method to continue using the fingerprint recognition function. 3. When the system recalls the Onauthenticationerror () method to turn off the sensor, the call to authenticate () will be disabled for a period of time, which means that fingerprint recognition cannot be used again during this period. Of course, the specific disabling time is

shuts down and we re-authorize the authenticate() method before we can continue using the fingerprint recognition feature. When the system callback onAuthenticationError() method to close the sensor, in this case re authenticate() -call will have a period of time to disable, that is, the time is not able to use the fingerprint recognition again. Of course, the specific disabling time by the handset man

fingerprint identification.Fingerprint identification resultsAction Animation Demo Project AddressSOURCE Download: Source Download Address Experience Summary Although there are many problems in fingerprint identification, security is not perfect, but the convenience of fingerprint identification is really good experience, used in some do not need to pay atten

Android cainiao Study Notes 30 ---- use Baidu map API for Android (I) preparations and display maps in applications, and android Baidu map api 1. Preparations: Baidu map API is open for free, but you need to apply for

Reference: https://developers.google.com/maps/documentation/android/start? Hl = ZH-CN # getting_the_google_maps_android_api_v2 The old version of Google map API key does not seem to have been applied for, and the application address given in the previous popular online tutorials is different from the page given in the tutorial. The following describes the APIs of Google Maps

APK on your mobile phone to your blog and share the googleservice-related apk-20130325.zip. Http://files.cnblogs.com/zdz8207/google%E6%9C%8D%E5%8A%A1%E7%9B%B8%E5%85%B3apk-20130325.zip Official Address A preliminary introduction to Google Maps Android API V2:Https://developers.google.com/maps/documentation/android/IntroductionHttps://developers.google.com/maps/do

Android requires that each application be digitally signed before it can be used. The signature contains information such as the key, creator, and Creation Unit, and is saved in a keystore. Google map provides the map service for every registered application. application developers need to transmit the keystore fingerprint to Google to obtain the API key. When ap

the Internet. You need to enter adb shell for processing. Open the relevant web page in the browser of the simulator, download the apk, and click to install it. It is no different from installing it on your mobile phone. After the installation is successful, you can see that Google Settings and Play Store are added to the App. There is also a simpler method. Log on to your gmail account and find the application to download. Google Map is a secure official version. 3. Get the key of the Google

1. First find the debug keystore path: Open Eclipse ---> Windows ---> Preferences ---> Android ---> Build Generally, the path C: \ Users \ Administrator \. android \ debug. keystore 2. Run the following command in cmd: 1) Open the cmd Console2) navigate to the jdk bin directory.Cd D: \ dev \ java \ jdk1.6.0 _ 12 \ binD:3) execute the command to obtain the authentication fingerprint:Keytool-list-alias andr

Register Google map API key Cheungmine Next, yesterday's topic, today we will first demonstrate how to generate a Google Android-certified fingerprint, which is used to register a Google Map API key. With this key, we can develop Android applications based on Google map APIs

Scanner can correctly categorize them (for example, the ringtone file will appear in the system-set ringtone list and will not be considered a music file).For example, the following is a sample of creating a new album directory in a Public picture directory:1 publicfile Getalbumstoragedir (String albumname) {2 //get the user's public picture directory3File File =NewFile (Environment.getexternalstoragepublicdirectory (4 environment.directory_pictu

beginning. (I suggest you do better. If you eat ready-made things, you will never learn things, and you will not remember them very well. Therefore, you can find them step by step as I said ). On the open page, enter the MD5 fingerprint you obtained in step 2, select the agree protocol, and press the "generate API key" button to obtain the API key we have applie

The acquisition of the android map API is mainly to prepare for map development (a bit like nonsense .....) The specific functions are not described. Let's look at how to obtain them. 1. obtain your debug keystore location: Open eclipse ---> Windows ---> preferences ---> Android ---> buildCheck the default debug keystore location. my options are c: \ Users \ abo

of the Debug.keystore, then you enter the key store password, the default input "Android", this way we can obtain the certificate thumbprint (SHA1), for example, toThe red box is what we need the certificate fingerprint (SHA1) value of the Android signature Certificate , and then we copy it and enter it into the Security Code input box of the

of the Debug.keystore, then you enter the key store password, the default input "Android", this way we can obtain the certificate thumbprint (SHA1), for example, toThe red box is what we need the certificate fingerprint (SHA1) value of the Android signature Certificate , and then we copy it, enter it into the Security Code input box of the

1. First get your debug KeyStore location: Open the eclipse--->windows--->preferences--->android--->build View the default debug KeyStore location, for example: C:\Documents and Settings\ (name of your computer) \.android\debug.keystore Copy this file to the C disk or other letter (the simplest way to copy directly to the Java Bin directory) 2. Keytool is a Java-provided command to use this file to locate i