feat: 增加拍摄界面

app/build.gradle

@@ -82,4 +82,15 @@ dependencies {
     implementation 'com.github.Gredicer:datetimepicker:V1.0.0'
     implementation 'com.google.code.gson:gson:2.10'
     implementation 'com.yanzhenjie.recyclerview:x:1.3.2'
+
+    // 动态权限申请 https://github.com/permissions-dispatcher/PermissionsDispatcher
+    implementation "com.github.permissions-dispatcher:permissionsdispatcher:4.9.2"
+    annotationProcessor "com.github.permissions-dispatcher:permissionsdispatcher-processor:4.9.2"
+
+    // 相机库 https://natario1.github.io/CameraView/about/getting-started
+    implementation("com.otaliastudios:cameraview:2.7.2")
+    // 图片压缩算法 https://github.com/Curzibn/Luban
+    implementation 'top.zibin:Luban:1.1.8'
+    // Android工具类库 https://github.com/l123456789jy/Lazy
+    implementation 'com.github.lazylibrary:lazylibrary:1.0.2'
 }

app/src/main/AndroidManifest.xml

@@ -1,6 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
+    <!--拍照-->
+    <uses-permission android:name="android.permission.CAMERA" android:required="false"/>
+    <!--网络请求-->
+    <uses-permission android:name="android.permission.INTERNET" android:required="false"/>
+    <!--录音-->
+    <uses-permission android:name="android.permission.RECORD_AUDIO" android:required="false"/>
+    <!--读写文件-->
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application
         android:allowBackup="true"

app/src/main/java/com/navinfo/volvo/MainActivity.kt

@@ -1,18 +1,24 @@
 package com.navinfo.volvo
 
+import android.Manifest
+import android.content.DialogInterface
 import android.os.Bundle
+import android.widget.Toast
 import com.google.android.material.bottomnavigation.BottomNavigationView
 import androidx.appcompat.app.AppCompatActivity
 import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.setupWithNavController
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.navinfo.volvo.R
 import com.navinfo.volvo.databinding.ActivityMainBinding
+import permissions.dispatcher.*
 
 class MainActivity : AppCompatActivity() {
 
     private lateinit var binding: ActivityMainBinding
 
+    @NeedsPermission(Manifest.permission.CAMERA)
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -32,4 +38,29 @@ class MainActivity : AppCompatActivity() {
 //        setupActionBarWithNavController(navController, appBarConfiguration)
         navView.setupWithNavController(navController)
     }
+
+    @OnShowRationale(Manifest.permission.CAMERA)
+    fun showRationaleForCamera(request: PermissionRequest) {
+//        showRationaleDialog(R.string.permission_camera_rationale, request)
+//        Toast.makeText(context, "当前操作需要您授权相机权限！", Toast.LENGTH_SHORT).show()
+        MaterialAlertDialogBuilder(this)
+            .setTitle("提示")
+            .setMessage("当前操作需要您授权读写SD卡权限！")
+            .setPositiveButton("确定", DialogInterface.OnClickListener { dialogInterface, i ->
+                dialogInterface.dismiss()
+                // 在SD卡创建项目目录
+
+            })
+            .show()
+    }
+
+    @OnPermissionDenied(Manifest.permission.CAMERA)
+    fun onCameraDenied() {
+        Toast.makeText(this, "当前操作需要您授权读写SD卡权限！", Toast.LENGTH_SHORT).show()
+    }
+
+    @OnNeverAskAgain(Manifest.permission.CAMERA)
+    fun onCameraNeverAskAgain() {
+        Toast.makeText(this, "您已永久拒绝授权读写SD卡权限！", Toast.LENGTH_SHORT).show()
+    }
 }

app/src/main/java/com/navinfo/volvo/ui/camera/CameraFragment.kt

@@ -0,0 +1,87 @@
+package com.navinfo.volvo.ui.camera
+
+import android.os.Bundle
+import android.text.TextUtils
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.navinfo.volvo.databinding.FragmentCameraBinding
+import com.otaliastudios.cameraview.CameraListener
+import com.otaliastudios.cameraview.CameraView
+import com.otaliastudios.cameraview.PictureResult
+import top.zibin.luban.Luban
+import top.zibin.luban.OnCompressListener
+import java.io.File
+import java.util.*
+
+
+class CameraFragment : Fragment() {
+
+    private var _binding: FragmentCameraBinding? = null
+
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    private val binding get() = _binding!!
+
+    private val cameraLifeCycleObserver: CameraLifeCycleObserver by lazy {
+        CameraLifeCycleObserver()
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        lifecycle.addObserver(cameraLifeCycleObserver)
+
+        val cameraViewModel =
+            ViewModelProvider(this).get(CameraViewModel::class.java)
+
+        _binding = FragmentCameraBinding.inflate(inflater, container, false)
+        val root: View = binding.root
+
+        val cameraView: CameraView = binding.camera
+        cameraView.setLifecycleOwner(this)
+        cameraView.addCameraListener(object:CameraListener() { // 添加拍照回调
+            override fun onPictureTaken(result: PictureResult) {
+                super.onPictureTaken(result)
+                result.toFile()
+                // 压缩图片文件
+                Luban.with(context)
+                    .load<Any>(photos)
+                    .ignoreBy(100)
+                    .setTargetDir(getPath())
+                    .filter { path ->
+                        !(TextUtils.isEmpty(path) || path.lowercase(Locale.getDefault())
+                            .endsWith(".gif"))
+                    }
+                    .setCompressListener(object : OnCompressListener {
+                        override fun onStart() {
+                            // TODO 压缩开始前调用，可以在方法内启动 loading UI
+                        }
+
+                        override fun onSuccess(file: File?) {
+                            // TODO 压缩成功后调用，返回压缩后的图片文件
+                        }
+
+                        override fun onError(e: Throwable) {
+                            // TODO 当压缩过程出现问题时调用
+                        }
+                    }).launch()
+            }
+        })
+        // 点击拍照
+        binding.imgStartCamera.setOnClickListener {
+            cameraView.takePicture()
+        }
+        return root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+        lifecycle.removeObserver(cameraLifeCycleObserver)
+    }
+}

app/src/main/java/com/navinfo/volvo/ui/camera/CameraLifeCycleObserver.kt

@@ -0,0 +1,31 @@
+package com.navinfo.volvo.ui.camera
+
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+
+class CameraLifeCycleObserver: DefaultLifecycleObserver {
+
+    override fun onCreate(owner: LifecycleOwner) {
+        super.onCreate(owner)
+    }
+
+    override fun onStart(owner: LifecycleOwner) {
+        super.onStart(owner)
+    }
+
+    override fun onResume(owner: LifecycleOwner) {
+        super.onResume(owner)
+    }
+
+    override fun onPause(owner: LifecycleOwner) {
+        super.onPause(owner)
+    }
+
+    override fun onStop(owner: LifecycleOwner) {
+        super.onStop(owner)
+    }
+
+    override fun onDestroy(owner: LifecycleOwner) {
+        super.onDestroy(owner)
+    }
+}

app/src/main/java/com/navinfo/volvo/ui/camera/CameraViewModel.kt

@@ -0,0 +1,13 @@
+package com.navinfo.volvo.ui.camera
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class CameraViewModel : ViewModel() {
+
+    private val _text = MutableLiveData<String>().apply {
+        value = "This is dashboard Fragment"
+    }
+    val text: LiveData<String> = _text
+}

app/src/main/java/com/navinfo/volvo/ui/message/ObtainMessageFragment.kt

@@ -1,15 +1,21 @@
 package com.navinfo.volvo.ui.message
 
+import android.Manifest
+import android.content.DialogInterface
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Toast
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.gredicer.datetimepicker.DateTimePickerFragment
 import com.navinfo.volvo.databinding.FragmentObtainMessageBinding
 import com.navinfo.volvo.ui.markRequiredInRed
+import permissions.dispatcher.*
+import java.util.*
 
 class ObtainMessageFragment: Fragment() {
     private var _binding: FragmentObtainMessageBinding? = null
@@ -59,10 +65,43 @@ class ObtainMessageFragment: Fragment() {
         }
 
         // 点击按钮选择拍照
+        binding.btnStartCamera.setOnClickListener {
+            // 启动相机
+            startCamera()
+        }
     }
 
     override fun onDestroyView() {
         super.onDestroyView()
         _binding = null
     }
+
+    @NeedsPermission(Manifest.permission.CAMERA)
+    fun startCamera() {
+
+    }
+
+    @OnShowRationale(Manifest.permission.CAMERA)
+    fun showRationaleForCamera(request: PermissionRequest) {
+//        showRationaleDialog(R.string.permission_camera_rationale, request)
+//        Toast.makeText(context, "当前操作需要您授权相机权限！", Toast.LENGTH_SHORT).show()
+        MaterialAlertDialogBuilder(context!!)
+            .setTitle("提示")
+            .setMessage("当前操作需要您授权相机权限！")
+            .setPositiveButton("确定", DialogInterface.OnClickListener { dialogInterface, i ->
+                startCamera()
+                dialogInterface.dismiss()
+             })
+            .show()
+    }
+
+    @OnPermissionDenied(Manifest.permission.CAMERA)
+    fun onCameraDenied() {
+        Toast.makeText(context, "当前操作需要您授权相机权限！", Toast.LENGTH_SHORT).show()
+    }
+
+    @OnNeverAskAgain(Manifest.permission.CAMERA)
+    fun onCameraNeverAskAgain() {
+        Toast.makeText(context, "您已永久拒绝授权相机权限！", Toast.LENGTH_SHORT).show()
+    }
 }

app/src/main/res/drawable/ic_baseline_camera_alt_24.xml

@@ -0,0 +1,6 @@
+<vector android:height="64dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="64dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M12,12m-3.2,0a3.2,3.2 0,1 1,6.4 0a3.2,3.2 0,1 1,-6.4 0"/>
+    <path android:fillColor="@android:color/white" android:pathData="M9,2L7.17,4L4,4c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,6c0,-1.1 -0.9,-2 -2,-2h-3.17L15,2L9,2zM12,17c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5z"/>
+</vector>

app/src/main/res/layout/fragment_camera.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <com.otaliastudios.cameraview.CameraView
+        android:id="@+id/camera"
+        android:keepScreenOn="true"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
+    <com.google.android.material.imageview.ShapeableImageView
+        android:id="@+id/img_start_camera"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="10dp"
+        app:shapeAppearance="@style/CircleStyle"
+        android:layout_alignParentBottom="true"
+        android:layout_centerHorizontal="true"
+        android:src="@drawable/ic_baseline_camera_alt_24"></com.google.android.material.imageview.ShapeableImageView>
+</RelativeLayout>

app/src/main/res/layout/fragment_dashboard.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context="com.navinfo.volvo.ui.dashboard.DashboardFragment">
+    tools:context="com.navinfo.volvo.ui.dashboard.CameraFragment">
 
     <TextView
         android:id="@+id/text_dashboard"

app/src/main/res/layout/fragment_obtain_message.xml

@@ -82,6 +82,7 @@
                         android:text="上传图片："></TextView>
 
                     <com.google.android.material.button.MaterialButton
+                        android:id="@+id/btn_start_camera"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         style="@style/Widget.Material3.Button.ElevatedButton"
@@ -92,6 +93,7 @@
                         android:layout_width="@dimen/default_widget_padding"
                         android:layout_height="wrap_content"></Space>
                     <com.google.android.material.button.MaterialButton
+                        android:id="@+id/btn_start_photo"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
                         style="@style/Widget.Material3.Button.ElevatedButton"
@@ -183,8 +185,7 @@
                         android:id="@+id/edt_send_from"
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:background="@drawable/selector_bg_4_round_corner"
+                        android:background="@drawable/selector_bg_4_round_corner"></androidx.appcompat.widget.AppCompatEditText>
-                        tools:ignore="TouchTargetSizeCheck,SpeakableTextPresentCheck"></androidx.appcompat.widget.AppCompatEditText>
                 </LinearLayout>
 
                 <LinearLayout
@@ -209,8 +210,7 @@
                         android:id="@+id/edt_send_to"
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
-                        android:background="@drawable/selector_bg_4_round_corner"
+                        android:background="@drawable/selector_bg_4_round_corner"></androidx.appcompat.widget.AppCompatEditText>
-                        tools:ignore="SpeakableTextPresentCheck,TouchTargetSizeCheck"></androidx.appcompat.widget.AppCompatEditText>
                 </LinearLayout>
 
                 <LinearLayout

app/src/main/res/navigation/mobile_navigation.xml

@@ -33,4 +33,13 @@
         android:name="com.navinfo.volvo.ui.message.ObtainMessageFragment"
         android:label="问候编辑"
         tools:layout="@layout/fragment_obtain_message" />
+
+    <fragment
+        android:id="@+id/navigation_camera"
+        android:name="com.navinfo.volvo.ui.camera.CameraFragment"
+        android:label="@string/title_dashboard"
+        tools:layout="@layout/fragment_camera" />
+
+    <action android:id="@+id/nav_2_camera"
+        app:destination="@id/nav_2_camera"></action>
 </navigation>

app/src/main/res/values/styles.xml

@@ -3,4 +3,10 @@
     <style name="default_line">
         <item name="android:padding">@dimen/default_widget_padding</item>
     </style>
+
+    <!--ShapeableImageView 圆 -->
+    <style name="CircleStyle">
+        <item name="cornerFamily">rounded</item>
+        <item name="cornerSize">50%</item>
+    </style>
 </resources>