我正在使用BiometricPrompt让用户使用指纹验证来登录我在PasswordActivity类中执行了以下操作的应用程序:
Executor executor = Executors.newSingleThreadExecutor();
FragmentActivity activity = this;
final BiometricPrompt biometricPrompt = new BiometricPrompt(activity, executor, new BiometricPrompt.AuthenticationCallback() {
@Override
public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) {
super.onAuthenticationError(errorCode, errString);
if (errorCode == BiometricPrompt.ERROR_NEGATIVE_BUTTON) {
// user clicked negative button
} else {
//TODO: Called when an unrecoverable error has been encountered and the operation is complete.
}
}
@Override
public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
super.onAuthenticationSucceeded(result);
//TODO: Called when a biometric is recognized.
final String decryptedText = decryptText();
runOnUiThread(new Runnable() {
@Override
public void run() {
if (decryptedText != null && !decryptedText.isEmpty()) {
editPassword.setText(decryptedText);
buttonNext();
}
}
});
}
@Override
public void onAuthenticationFailed() {
super.onAuthenticationFailed();
//TODO: Called when a biometric is valid but not recognized.
}
});
final BiometricPrompt.PromptInfo promptInfo = new BiometricPrompt.PromptInfo.Builder()
.setTitle("My App"))
.setSubtitle("Log on into the app"))
.setNegativeButtonText("Cancel").toUpperCase())
.build();
if (sharedPreferenceManager.isFingerprintEnabled(this))
biometricPrompt.authenticate(promptInfo); 这是我得到的一个例外。我必须要设置吗?
setNegativeButton (CharSequence text,
Executor executor,
DialogInterface.OnClickListener listener) as well?我正在使用这个版本的实现‘androidx.biometry.biometry:1.0.0-alpha03’。
Caused by java.lang.IllegalArgumentException: Executor must not be null
at android.hardware.biometrics.BiometricPrompt$Builder.setNegativeButton + 182(BiometricPrompt.java:182)
at androidx.biometric.BiometricFragment.onCreate + 201(BiometricFragment.java:201)
at androidx.fragment.app.Fragment.performCreate + 2414(Fragment.java:2414)
at androidx.fragment.app.FragmentManagerImpl.moveToState + 1418(FragmentManagerImpl.java:1418)
at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState + 1784(FragmentManagerImpl.java:1784)
at androidx.fragment.app.FragmentManagerImpl.moveToState + 1861(FragmentManagerImpl.java:1861)
at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange + 3269(FragmentManagerImpl.java:3269)
at androidx.fragment.app.FragmentManagerImpl.dispatchCreate + 3223(FragmentManagerImpl.java:3223)
at androidx.fragment.app.FragmentController.dispatchCreate + 190(FragmentController.java:190)
at androidx.fragment.app.FragmentActivity.onCreate + 369(FragmentActivity.java:369)
at androidx.appcompat.app.AppCompatActivity.onCreate + 85(AppCompatActivity.java:85)发布于 2019-09-25 09:10:05
尝试更新依赖项,当前最新版本已是发布候选版本:
implementation "androidx.biometric:biometric:1.0.0-rc01"发布于 2019-10-17 02:24:44
您是否可以尝试将Executor executor = Executors.newSingleThreadExecutor();替换为:
private Handler handler = new Handler();
private Executor executor = new Executor() {
@Override
public void execute(Runnable command) {
handler.post(command);
}
};这是根据this developer.android.com教程中给出的代码。
发布于 2019-09-26 13:11:31
Caused by java.lang.IllegalArgumentException: Executor must not be null
at android.hardware.biometrics.BiometricPrompt$Builder.setNegativeButton + 182(BiometricPrompt.java:182)这表明您正在测试的设备上的框架没有接收到来自支持库的执行器(支持库中的错误),或者框架本身有错误。
您可以尝试使用更高版本的androidx.biometric库吗?Beta02最近发布了,自从alpha03发布以来,很多东西都被修复了。
另外,你正在测试什么设备,如果它可以在Beta02上重现,你可以通过adb bugreport foo.zip获取一个错误端口,并将有错误的示例应用程序附加到公共问题tracker
https://stackoverflow.com/questions/58089766
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