Application lock (Android)

android/app/src/main/AndroidManifest.xml

@@ -7,6 +7,7 @@
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.USE_BIOMETRIC"/>
 
     <queries>
         <intent>

android/app/src/main/kotlin/niuhuan/pikapika/MainActivity.kt

@@ -1,11 +1,12 @@
 package niuhuan.pikapika
 
 import android.content.ContentValues
+import android.content.DialogInterface
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
+import android.hardware.biometrics.BiometricPrompt
 import android.os.*
 import android.provider.MediaStore
-import android.util.DisplayMetrics
 import android.util.Log
 import android.view.Display
 import android.view.KeyEvent
@@ -27,6 +28,8 @@ import java.io.FileInputStream
 import java.io.FileOutputStream
 import java.nio.file.Files
 import java.util.concurrent.Executors
+import java.util.concurrent.LinkedBlockingQueue
+import java.util.concurrent.TimeUnit
 
 class MainActivity : FlutterActivity() {
 
@@ -70,7 +73,10 @@ class MainActivity : FlutterActivity() {
         super.configureFlutterEngine(flutterEngine)
         Mobile.initApplication(androidDataLocal())
         // Method Channel
-        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, "method").setMethodCallHandler { call, result ->
+        MethodChannel(
+            flutterEngine.dartExecutor.binaryMessenger,
+            "method"
+        ).setMethodCallHandler { call, result ->
             result.withCoroutine {
                 when (call.method) {
                     "flatInvoke" -> {
@@ -96,6 +102,7 @@ class MainActivity : FlutterActivity() {
                     // 获取可以迁移数据地址
                     "androidGetExtendDirs" -> androidGetExtendDirs()
                     "androidSecureFlag" -> androidSecureFlag(call.argument("flag")!!)
+                    "verifyAuthentication" -> auth()
                     else -> {
                         notImplementedToken
                     }
@@ -239,7 +246,8 @@ class MainActivity : FlutterActivity() {
                     put(MediaStore.MediaColumns.IS_PENDING, 1)
                 }
             }
-            contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)?.let { uri ->
+            contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
+                ?.let { uri ->
                     contentResolver.openOutputStream(uri)?.use { fos ->
                         bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos)
                     }
@@ -339,20 +347,62 @@ class MainActivity : FlutterActivity() {
     private fun androidSecureFlag(flag: Boolean) {
         uiThreadHandler.post {
             if (flag) {
-                window.setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE)
+                window.setFlags(
+                    WindowManager.LayoutParams.FLAG_SECURE,
+                    WindowManager.LayoutParams.FLAG_SECURE
+                )
             } else {
                 window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
             }
         }
     }
 
-    private fun compressBitMap(bitmap: Bitmap): ByteArray {
+    // withCoroutine -> queue
-        val bos = ByteArrayOutputStream()
+    private fun auth(): Boolean {
-        bos.use { bos ->
+        var queue = LinkedBlockingQueue<Boolean>()
-            Log.d("BITMAP", bitmap.width.toString())
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
-            bitmap.compress(Bitmap.CompressFormat.PNG, 100, bos)
+            var mBiometricPrompt = BiometricPrompt.Builder(this)
+                .setTitle("验证身份")
+                .setDescription("需要验证您的身份")
+                .setNegativeButton(
+                    "取消", mainExecutor
+                ) { _, _ -> queue.add(false) }
+                .build()
+
+
+            var mCancellationSignal = CancellationSignal()
+            mCancellationSignal.setOnCancelListener {
+                queue.add(false)
             }
-        return bos.toByteArray()
+
+            var mAuthenticationCallback = object : BiometricPrompt.AuthenticationCallback() {
+                override fun onAuthenticationError(errorCode: Int, errString: CharSequence?) {
+                    super.onAuthenticationError(errorCode, errString)
+                    queue.add(false)
+                }
+
+                override fun onAuthenticationFailed() {
+                    super.onAuthenticationFailed()
+                    queue.add(false)
+                }
+
+                override fun onAuthenticationSucceeded(result1: BiometricPrompt.AuthenticationResult?) {
+                    super.onAuthenticationSucceeded(result1)
+                    queue.add(true)
+                }
+            }
+
+            mBiometricPrompt.authenticate(
+                mCancellationSignal,
+                mainExecutor,
+                mAuthenticationCallback
+            )
+
+        } else {
+            queue.add(false)
+        }
+
+        return queue.poll(5, TimeUnit.MINUTES) ?: false
     }
 
 

android/build.gradle

@@ -13,8 +13,7 @@ buildscript {
 
 allprojects {
     repositories {
-        google()
+        maven { url('https://maven.aliyun.com/repository/public') }
-        jcenter()
     }
 }
 

lib/basic/config/Authentication.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:pikapika/basic/config/Platform.dart';
 
 import '../Common.dart';
 import '../Method.dart';
@@ -30,9 +31,7 @@ Future<void> _chooseAuthentication(BuildContext context) async {
 }
 
 Widget authenticationSetting() {
-  if (Platform.isIOS != true) {
+  if (Platform.isIOS) {
-    return Container();
-  }
     return StatefulBuilder(
       builder: (BuildContext context, void Function(void Function()) setState) {
         return ListTile(
@@ -45,4 +44,19 @@ Widget authenticationSetting() {
         );
       },
     );
+  } else if (androidVersion >= 29) {
+    return StatefulBuilder(
+      builder: (BuildContext context, void Function(void Function()) setState) {
+        return ListTile(
+          title: const Text("进入APP时验证指纹(如果系统已经录入)"),
+          subtitle: Text(_authentication ? "是" : "否"),
+          onTap: () async {
+            await _chooseAuthentication(context);
+            setState(() {});
+          },
+        );
+      },
+    );
+  }
+  return Container();
 }