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Merge pull request NiklasMerz#8 from exxbrain/2.0.0-biometricpromt-an…
…d-consistent-callbacks 2.0.0 biometricpromt and consistent callbacks
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| package de.niklasmerz.cordova.biometric; | ||
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| import android.app.Activity; | ||
| import android.app.KeyguardManager; | ||
| import android.content.Intent; | ||
| import android.os.Build; | ||
| import android.os.Bundle; | ||
| import android.os.Handler; | ||
| import android.os.Looper; | ||
| import android.support.annotation.NonNull; | ||
| import android.support.annotation.Nullable; | ||
| import android.support.v4.content.ContextCompat; | ||
| import android.support.v7.app.AppCompatActivity; | ||
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| import com.exxbrain.android.biometric.BiometricPrompt; | ||
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| import java.util.concurrent.Executor; | ||
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| public class BiometricActivity extends AppCompatActivity { | ||
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| private static final int REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS = 2; | ||
| private PromptInfo mPromptInfo; | ||
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| @Override | ||
| protected void onCreate(@Nullable Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
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| setTitle(null); | ||
| int layout = getResources() | ||
| .getIdentifier("biometric_activity", "layout", getPackageName()); | ||
| setContentView(layout); | ||
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| if (savedInstanceState != null) { | ||
| return; | ||
| } | ||
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| mPromptInfo = new PromptInfo.Builder(getIntent().getExtras()).build(); | ||
| authenticate(); | ||
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| } | ||
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| private void authenticate() { | ||
| final Handler handler = new Handler(Looper.getMainLooper()); | ||
| Executor executor = handler::post; | ||
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| BiometricPrompt biometricPrompt = | ||
| new BiometricPrompt(this, executor, mAuthenticationCallback); | ||
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| BiometricPrompt.PromptInfo.Builder promptInfoBuilder = new BiometricPrompt.PromptInfo.Builder() | ||
| .setTitle(mPromptInfo.getTitle()) | ||
| .setSubtitle(mPromptInfo.getSubtitle()) | ||
| .setDescription(mPromptInfo.getDescription()); | ||
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| if (mPromptInfo.isDeviceCredentialAllowed() | ||
| && Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) { // TODO: remove after fix https://issuetracker.google.com/issues/142740104 | ||
| promptInfoBuilder.setDeviceCredentialAllowed(true); | ||
| } else { | ||
| promptInfoBuilder.setNegativeButtonText(mPromptInfo.getFallbackButtonTitle()); | ||
| } | ||
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| biometricPrompt.authenticate(promptInfoBuilder.build()); | ||
| } | ||
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| private BiometricPrompt.AuthenticationCallback mAuthenticationCallback = | ||
| new BiometricPrompt.AuthenticationCallback() { | ||
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| @Override | ||
| public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) { | ||
| super.onAuthenticationError(errorCode, errString); | ||
| onError(errorCode, errString); | ||
| } | ||
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| @Override | ||
| public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) { | ||
| super.onAuthenticationSucceeded(result); | ||
| finishWithSuccess(); | ||
| } | ||
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| @Override | ||
| public void onAuthenticationFailed() { | ||
| super.onAuthenticationFailed(); | ||
| } | ||
| }; | ||
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| // TODO: remove after fix https://issuetracker.google.com/issues/142740104 | ||
| private void showAuthenticationScreen() { | ||
| KeyguardManager keyguardManager = ContextCompat | ||
| .getSystemService(this, KeyguardManager.class); | ||
| if (keyguardManager == null | ||
| || android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) { | ||
| return; | ||
| } | ||
| if (keyguardManager.isKeyguardSecure()) { | ||
| Intent intent = keyguardManager | ||
| .createConfirmDeviceCredentialIntent(mPromptInfo.getTitle(), mPromptInfo.getDescription()); | ||
| this.startActivityForResult(intent, REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS); | ||
| } else { | ||
| // Show a message that the user hasn't set up a lock screen. | ||
| finishWithError(PluginError.BIOMETRIC_SCREEN_GUARD_UNSECURED); | ||
| } | ||
| } | ||
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| // TODO: remove after fix https://issuetracker.google.com/issues/142740104 | ||
| @Override | ||
| public void onActivityResult(int requestCode, int resultCode, Intent data) { | ||
| if (requestCode == REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS) { | ||
| if (resultCode == Activity.RESULT_OK) { | ||
| finishWithSuccess(); | ||
| } else { | ||
| finishWithError(PluginError.BIOMETRIC_PIN_OR_PATTERN_DISMISSED); | ||
| } | ||
| } | ||
| } | ||
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| private void onError(int errorCode, @NonNull CharSequence errString) { | ||
|
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| switch (errorCode) | ||
| { | ||
| case BiometricPrompt.ERROR_CANCELED: | ||
| finishWithError(PluginError.BIOMETRIC_FINGERPRINT_DISMISSED); | ||
| return; | ||
| case BiometricPrompt.ERROR_NEGATIVE_BUTTON: | ||
| // TODO: remove after fix https://issuetracker.google.com/issues/142740104 | ||
| if (Build.VERSION.SDK_INT > Build.VERSION_CODES.P && mPromptInfo.isDeviceCredentialAllowed()) { | ||
| showAuthenticationScreen(); | ||
| return; | ||
| } | ||
| finishWithError(PluginError.BIOMETRIC_FINGERPRINT_DISMISSED); | ||
| break; | ||
| case BiometricPrompt.ERROR_LOCKOUT: | ||
| finishWithError(PluginError.BIOMETRIC_LOCKED_OUT.getValue(), errString.toString()); | ||
| break; | ||
| case BiometricPrompt.ERROR_LOCKOUT_PERMANENT: | ||
| finishWithError(PluginError.BIOMETRIC_LOCKED_OUT_PERMANENT.getValue(), errString.toString()); | ||
| break; | ||
| default: | ||
| finishWithError(errorCode, errString.toString()); | ||
| } | ||
| } | ||
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| private void finishWithSuccess() { | ||
| setResult(RESULT_OK); | ||
| finish(); | ||
| } | ||
|
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| private void finishWithError(PluginError error) { | ||
| finishWithError(error.getValue(), error.getMessage()); | ||
| } | ||
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| private void finishWithError(int code, String message) { | ||
| Intent data = new Intent(); | ||
| data.putExtra("code", code); | ||
| data.putExtra("message", message); | ||
| setResult(RESULT_CANCELED, data); | ||
| finish(); | ||
| } | ||
| } |
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