在安卓开发中 考虑较新机型的指纹支付或刷脸支付 用代码如何实现
时间: 2023-10-18 22:04:29 浏览: 195
android 指纹识别+最简单的代码实现
在安卓开发中,可以通过Android系统提供的Fingerprint API和Face ID API来实现指纹支付和刷脸支付的功能。以下是实现指纹支付和刷脸支付的简要步骤:
1. 检查设备是否支持指纹支付或刷脸支付
```java
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
FingerprintManager fingerprintManager = (FingerprintManager) getSystemService(Context.FINGERPRINT_SERVICE);
if (!fingerprintManager.isHardwareDetected() || !fingerprintManager.hasEnrolledFingerprints()) {
// 设备不支持指纹支付
return;
}
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
if (!keyguardManager.isKeyguardSecure() || !keyguardManager.isDeviceSecure()) {
// 设备不支持刷脸支付
return;
}
}
```
2. 请求指纹或刷脸验证
```java
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
FingerprintManager fingerprintManager = (FingerprintManager) getSystemService(Context.FINGERPRINT_SERVICE);
if (fingerprintManager.isHardwareDetected() && fingerprintManager.hasEnrolledFingerprints()) {
// 请求指纹验证
FingerprintManager.AuthenticationCallback authenticationCallback = new FingerprintManager.AuthenticationCallback() {
@Override
public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
// 指纹验证成功
}
@Override
public void onAuthenticationError(int errorCode, CharSequence errString) {
// 指纹验证错误
}
@Override
public void onAuthenticationFailed() {
// 指纹验证失败
}
};
CancellationSignal cancellationSignal = new CancellationSignal();
fingerprintManager.authenticate(null, cancellationSignal, 0, authenticationCallback, null);
}
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
if (keyguardManager.isKeyguardSecure() && keyguardManager.isDeviceSecure()) {
// 请求刷脸验证
BiometricPrompt biometricPrompt = new BiometricPrompt.Builder(this)
.setTitle("Title")
.setDescription("Description")
.setNegativeButton("Cancel", this.getMainExecutor(), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
// 取消刷脸验证
}
})
.build();
BiometricPrompt.AuthenticationCallback authenticationCallback = new BiometricPrompt.AuthenticationCallback() {
@Override
public void onAuthenticationSucceeded(BiometricPrompt.AuthenticationResult result) {
// 刷脸验证成功
}
@Override
public void onAuthenticationError(int errorCode, CharSequence errString) {
// 刷脸验证错误
}
@Override
public void onAuthenticationFailed() {
// 刷脸验证失败
}
};
biometricPrompt.authenticate(new CancellationSignal(), this.getMainExecutor(), authenticationCallback);
}
}
```
需要注意的是,上述代码中的指纹验证和刷脸验证是互斥的,只能选择其中一个进行验证。同时,需要在AndroidManifest.xml文件中声明相应的权限和特性:
```xml
<uses-permission android:name="android.permission.USE_BIOMETRIC" />
<uses-permission android:name="android.permission.USE_FINGERPRINT" />
<uses-feature android:name="android.hardware.fingerprint" android:required="false" />
<uses-feature android:name="android.hardware.camera" android:required="false" />
<uses-feature android:name="android.hardware.camera.front" android:required="false" />
<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />
```
以上代码仅为实现指纹支付和刷脸支付的基本示例,具体实现方式可能会因设备、系统等因素而有所不同。另外,实现指纹支付和刷脸支付需要考虑安全性等方面的问题,开发过程中需要注意遵守相关规范和标准。
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