android.app.KeyguardManager#isKeyguardSecure ( )源码实例Demo

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);
    }
}
 

/**
 * 判断是否支持指纹（先用Android M的方式来判断）
 */
private boolean isSupportFingerprint() {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
        Toast.makeText(this, "您的系统版本过低，不支持指纹功能", Toast.LENGTH_SHORT).show();
        return false;
    } else {
        KeyguardManager keyguardManager = getSystemService(KeyguardManager.class);
        FingerprintManager fingerprintManager = getSystemService(FingerprintManager.class);

        if (!fingerprintManager.isHardwareDetected()) {
            Toast.makeText(this, "您的手机不支持指纹功能", Toast.LENGTH_SHORT).show();
            return false;
        } else if (!keyguardManager.isKeyguardSecure()) {
            Toast.makeText(this, "您还未设置锁屏，请先设置锁屏并添加一个指纹", Toast.LENGTH_SHORT).show();
            return false;
        } else if (!fingerprintManager.hasEnrolledFingerprints()) {
            Toast.makeText(this, "您至少需要在系统设置中添加一个指纹", Toast.LENGTH_SHORT).show();
            return false;
        }
    }
    return true;
}
 

/** Check is permissions granted for biometric things. */
public static boolean isPermissionsGranted(@NonNull final Context context) {
  // before api23 no permissions for biometric, no hardware == no permissions
  if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
    return false;
  }

  final KeyguardManager km =
    (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
  if( !km.isKeyguardSecure() ) return false;

  // api28+
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    return context.checkSelfPermission(Manifest.permission.USE_BIOMETRIC) == PERMISSION_GRANTED;
  }

  // before api28
  return context.checkSelfPermission(Manifest.permission.USE_FINGERPRINT) == PERMISSION_GRANTED;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
    Button purchaseButton = (Button) findViewById(R.id.purchase_button);
    if (!mKeyguardManager.isKeyguardSecure()) {
        // Show a message that the user hasn't set up a lock screen.
        Toast.makeText(this,
                "Secure lock screen hasn't set up.\n"
                        + "Go to 'Settings -> Security -> Screenlock' to set up a lock screen",
                Toast.LENGTH_LONG).show();
        purchaseButton.setEnabled(false);
        return;
    }
    createKey();
    findViewById(R.id.purchase_button).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // Test to encrypt something. It might fail if the timeout expired (30s).
            tryEncrypt();
        }
    });
}
 

@RequiresApi(api = Build.VERSION_CODES.M)
public static boolean checkFinger(Context ctx) {

    // Keyguard Manager
    KeyguardManager keyguardManager = (KeyguardManager) ctx.getSystemService(KEYGUARD_SERVICE);
    // Fingerprint Manager
    FingerprintManager fingerprintManager = (FingerprintManager) ctx.getSystemService(FINGERPRINT_SERVICE);

    try {
        // Check if the fingerprint sensor is present
        if (!fingerprintManager.isHardwareDetected()) {
            // Update the UI with a message
            StringUtils.showToast(ctx, ctx.getString(R.string.fp_not_supported));
            return false;
        }

        if (!fingerprintManager.hasEnrolledFingerprints()) {
            StringUtils.showToast(ctx, ctx.getString(R.string.fp_not_configured));
            return false;
        }

        if (!keyguardManager.isKeyguardSecure()) {
            StringUtils.showToast(ctx, ctx.getString(R.string.fp_not_enabled_sls));
            return false;
        }
    } catch (SecurityException se) {
        se.printStackTrace();
    }
    return true;
}
 

/** Start an activity. Returns true if successful. */
@SuppressWarnings("deprecation")
protected boolean startActivity(Intent intent) {
    Context context = getContext();
    if (null == context || null == intent) return false;

    // Disable the Keyguard if necessary.
    KeyguardManager mKM = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
    if (mKM.isKeyguardLocked() && !mKM.isKeyguardSecure()) {
        mKeyguardLock = mKM.newKeyguardLock(getName());
        mKeyguardLock.disableKeyguard();
    }

    try {
        // Necessary because we're in a background Service!
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

        if (intent.resolveActivity(context.getPackageManager()) != null) {
            context.startActivity(intent);
            return true;
        }
    } catch (ActivityNotFoundException anfe) {
        LOGE("VolumePanel", "Error launching Intent: " + intent.toString(), anfe);
    } catch (SecurityException se) {
        LOGE("VolumePanel", "Error launching Intent: " + intent.toString(), se);
        Toast.makeText(context, R.string.permission_error, Toast.LENGTH_SHORT).show();
    }

    return false;
}
 

@Override
public boolean canGoForward() {
    Constants.AuthMethod authMethod = selectionMapping.get(selection.getSelectedItemPosition());

    if (authMethod == Constants.AuthMethod.PIN || authMethod == Constants.AuthMethod.PASSWORD) {
        String password = passwordInput.getText().toString();
        String confirm = passwordConfirm.getText().toString();

        if (! password.isEmpty()) {
            if (password.length() < minLength) {
                updateWarning(lengthWarning);
                return false;
            } else {
                if (! confirm.isEmpty() && confirm.equals(password)) {
                    hideWarning();
                    return true;
                } else {
                    updateWarning(confirmPasswordWarning);
                    return false;
                }
            }
        } else {
            updateWarning(noPasswordWarning);
            return false;
        }
    } else if (authMethod == Constants.AuthMethod.DEVICE) {
        KeyguardManager km = (KeyguardManager) getContext().getSystemService(KEYGUARD_SERVICE);

        if (! km.isKeyguardSecure()) {
            updateWarning(R.string.settings_toast_auth_device_not_secure);
            return false;
        }

        hideWarning();
        return true;
    } else {
        hideWarning();
        return true;
    }
}
 

private void saveValues() {
    byte[] newKey = null;

    if (settings.getEncryption() == EncryptionType.PASSWORD) {
        if (value == AuthMethod.NONE || value == AuthMethod.DEVICE) {
            UIHelper.showGenericDialog(getContext(), R.string.settings_dialog_title_error, R.string.settings_dialog_msg_auth_invalid_with_encryption);
            return;
        }
    }

    if (value == AuthMethod.DEVICE) {
        KeyguardManager km = (KeyguardManager) getContext().getSystemService(KEYGUARD_SERVICE);

        if (! km.isKeyguardSecure()) {
            Toast.makeText(getContext(), R.string.settings_toast_auth_device_not_secure, Toast.LENGTH_LONG).show();
            return;
        }
    }

    if (value == AuthMethod.PASSWORD || value == AuthMethod.PIN) {
        String password = passwordInput.getText().toString();
        if (!password.isEmpty()) {
            newKey = settings.setAuthCredentials(password);
        } else {
            return;
        }
    }

    if (settings.getEncryption() == EncryptionType.PASSWORD) {
        if (newKey == null || encryptionChangeCallback == null)
            return;

        if (! encryptionChangeCallback.testEncryptionChange(newKey))
            return;
    }

    persistString(value.toString().toLowerCase());
    setSummary(entries.get(entryValues.indexOf(value)));
}
 

public static boolean isDeviceSupported(Context context) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
        return false;
    }

    FingerprintManager fingerprintManager = context.getSystemService(FingerprintManager.class);
    KeyguardManager keyguardManager = context.getSystemService(KeyguardManager.class);

    return (keyguardManager != null) && (fingerprintManager != null) &&
            keyguardManager.isKeyguardSecure() &&
            fingerprintManager.isHardwareDetected() &&
            fingerprintManager.hasEnrolledFingerprints();
}
 

@ReactMethod(isBlockingSynchronousMethod = true)
public boolean isPinOrFingerprintSetSync() {
  KeyguardManager keyguardManager = (KeyguardManager) getReactApplicationContext().getSystemService(Context.KEYGUARD_SERVICE);
  if (keyguardManager != null) {
    return keyguardManager.isKeyguardSecure();
  }
  System.err.println("Unable to determine keyguard status. KeyguardManager was null");
  return false;
}
 

public boolean isStandardKeyguardState() {
    boolean isStandardKeyguqrd = false;
    KeyguardManager keyManager = (KeyguardManager) mContext.getSystemService(mContext.KEYGUARD_SERVICE);
    if (null != keyManager) {
        isStandardKeyguqrd = keyManager.isKeyguardSecure();
    }

    return isStandardKeyguqrd;
}
 

private void initializeVisibility() {
    KeyguardManager keyguardManager = (KeyguardManager) getContext().getSystemService(Context.KEYGUARD_SERVICE);
    SwitchPreferenceCompat screenLockPreference = (SwitchPreferenceCompat) findPreference(Prefs.SCREEN_LOCK);
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP || keyguardManager == null || !keyguardManager.isKeyguardSecure()) {
        screenLockPreference.setChecked(false);
        screenLockPreference.setEnabled(false);
    }
    if (!screenLockPreference.isChecked()) {
        manageScreenLockChildren(false);
    }
}
 

public static boolean areCredentialsAvailable(Context context) {
    KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);

    if (keyguardManager != null) {
        return keyguardManager.isKeyguardSecure();
    } else {
        Log.e(TAG, "Keyguard manager is null");
        return false;
    }
}
 

/** Start an activity. Returns true if successful. */
@SuppressWarnings("deprecation")
protected boolean startActivity(Intent intent) {
    Context context = getContext();
    if (null == context || null == intent) return false;

    // Disable the Keyguard if necessary.
    KeyguardManager mKM = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
    if (mKM.isKeyguardLocked() && !mKM.isKeyguardSecure()) {
        mKeyguardLock = mKM.newKeyguardLock(getName());
        mKeyguardLock.disableKeyguard();
    }

    try {
        // Necessary because we're in a background Service!
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

        if (intent.resolveActivity(context.getPackageManager()) != null) {
            context.startActivity(intent);
            return true;
        }
    } catch (ActivityNotFoundException anfe) {
        LOGE("VolumePanel", "Error launching Intent: " + intent.toString(), anfe);
    } catch (SecurityException se) {
        LOGE("VolumePanel", "Error launching Intent: " + intent.toString(), se);
        Toast.makeText(context, R.string.permission_error, Toast.LENGTH_SHORT).show();
    }

    return false;
}
 

/**
 * Returns whether the device is currently locked and requires a PIN,
 * pattern or password to unlock.
 */
@SuppressLint("NewApi")
public static boolean isDeviceLocked(@NonNull KeyguardManager km) {
    return Device.hasLollipopMR1Api() ? km.isDeviceLocked() : km.isKeyguardSecure();
}
 

public static boolean isKeyguardSecure(Context context) {
    KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
    return keyguardManager.isKeyguardSecure();
}
 

public static boolean isKeyguardSecure(Context context) {
    KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
    return keyguardManager.isKeyguardSecure();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (DEBUG) Log.d(TAG, "Creating keyguard activity...");

    mTimeout.registerListener(this);
    mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
    registerScreenEventsReceiver();

    int flags = 0;

    // Handle intents
    final Intent intent = getIntent();
    if (intent != null) {
        if (hasWakeUpExtra(intent)) flags |= WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON;
        mExtraCause = intent.getIntExtra(EXTRA_CAUSE, 0);
    }

    // FIXME: Android dev team broke the DISMISS_KEYGUARD flag.
    // https://code.google.com/p/android-developer-preview/issues/detail?id=1902
    if (Device.hasLollipopApi()
            && !Device.hasMarshmallowApi() // Should be fine now
            && !mKeyguardManager.isKeyguardSecure()) {
        getWindow().addFlags(flags);
        requestDismissSystemKeyguard();
    } else {
        getWindow().addFlags(flags |
                // Show activity above the system keyguard.
                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
    }

    // Update system ui visibility: hide nav bar and optionally the
    // status bar.
    final View decorView = getWindow().getDecorView();
    decorView.setOnSystemUiVisibilityChangeListener(
            mSystemUiListener = new View.OnSystemUiVisibilityChangeListener() {
                public final void onSystemUiVisibilityChange(int f) {
                    setSystemUiVisibilityFake();
                    decorView.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            int visibility = SYSTEM_UI_BASIC_FLAGS
                                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
                            if (getConfig().isFullScreen()) {
                                visibility |= View.SYSTEM_UI_FLAG_FULLSCREEN;
                            }
                            decorView.setSystemUiVisibility(visibility);
                        }
                    }, 100);
                }
            }
    );
}
 

public static boolean canUseFingerprint(boolean doSnackbar) {
    BaseActivity activity = App.get().getCurrentForegroundActivity();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        //Get an instance of KeyguardManager and FingerprintManager//
        KeyguardManager keyguardManager =
                (KeyguardManager) App.get().getSystemService(KEYGUARD_SERVICE);
        FingerprintManager fingerprintManager = (FingerprintManager) App.get().getSystemService(Context.FINGERPRINT_SERVICE);


        //Check whether the device has a fingerprint sensor//
        if (!fingerprintManager.isHardwareDetected()) {
            // If a fingerprint sensor isn’t available, then inform the user that they’ll be unable to use your app’s fingerprint functionality//
            if (doSnackbar)
                SnackbarUtil.showShort(activity, R.string.fingerprint_device_unsupported);
            return false;
        }
        //Check whether the user has granted your app the USE_FINGERPRINT permission//
        if (ActivityCompat.checkSelfPermission(activity, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
            // If your app doesn't have this permission, then display the following text//
            if (doSnackbar)
                SnackbarUtil.showShort(activity, R.string.fingerprint_permission);
            return false;
        }

        //Check that the user has registered at least one fingerprint//
        if (!fingerprintManager.hasEnrolledFingerprints()) {
            // If the user hasn’t configured any fingerprints, then display the following message//
            if (doSnackbar)
                SnackbarUtil.showShort(activity, R.string.fingerprint_unconfigured);
            return false;
        }

        //Check that the lockscreen is secured//
        if (!keyguardManager.isKeyguardSecure()) {
            // If the user hasn’t secured their lockscreen with a PIN password or pattern, then display the following text//
            if (doSnackbar)
                SnackbarUtil.showShort(activity, R.string.fingerprint_noLock);
            return false;
        }

        return true;
    } else {
        if (doSnackbar)
            SnackbarUtil.showShort(activity, R.string.fingerprint_device_unsupported);
        return false;
    }
}
 

@TargetApi(Build.VERSION_CODES.M)
public static boolean canUseKeychainAuthentication(Context context) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return false;
    KeyguardManager keyguardManager = context.getSystemService(KeyguardManager.class);
    return keyguardManager.isKeyguardSecure();
}