确认模拟器支持指纹认证:在模拟器上运行以下代码:
PackageManager packageManager = context.getPackageManager(); if(packageManager.hasSystemFeature(PackageManager.FEATURE_FINGERPRINT)){ //支持指纹识别 }
在模拟器中设置指纹:在Android模拟器中,进入“设置” -> “安全性和隐私” -> “指纹” 选项中,设置指纹。
设置指纹认证回调函数:在代码中设置指纹认证回调函数,方法如下:
private FingerprintManager.AuthenticationCallback mAuthenticationCallback = new FingerprintManager.AuthenticationCallback() { @Override public void onAuthenticationError(int errorCode, CharSequence errString) { //认证错误处理逻辑 }
@Override
public void onAuthenticationHelp(int helpCode, CharSequence helpString) {
//认证帮助处理逻辑
}
@Override
public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
//认证成功处理逻辑
}
@Override
public void onAuthenticationFailed() {
//认证失败处理逻辑
}
};
调用指纹认证方法:在代码中调用指纹认证方法,方法如下:
FingerprintManager fingerprintManager = (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE); KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); if (fingerprintManager.isHardwareDetected() && fingerprintManager.hasEnrolledFingerprints() && keyguardManager.isKeyguardSecure()) { //可以进行指纹认证 FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher); fingerprintManager.authenticate(cryptoObject, cancellationSignal, 0, mAuthenticationCallback, null); }
确认应用权限:在 AndroidManifest.xml 文件中添加以下权限:
确认密钥权限:如果您在应用程序中使用存储在 Android 设备上的密钥,则需要在运行应用程序时授予访问密钥的权限。在 AndroidManifest.xml 文件中添加以下权限: