├── .gitignore
├── README.md
├── app
    ├── build.gradle.kts
    ├── proguard-rules.pro
    └── src
    │   └── main
    │       ├── AndroidManifest.xml
    │       ├── java
    │           └── cn
    │           │   └── bingoogolapple
    │           │       └── camera
    │           │           ├── CameraPreview.kt
    │           │           ├── MainActivity.kt
    │           │           ├── PlayActivity.kt
    │           │           ├── SettingsFragment.kt
    │           │           ├── StudyActivity.kt
    │           │           └── StudyFragment.kt
    │       └── res
    │           ├── drawable-v24
    │               └── ic_launcher_foreground.xml
    │           ├── drawable
    │               └── ic_launcher_background.xml
    │           ├── layout-land
    │               └── activity_main.xml
    │           ├── layout
    │               ├── activity_main.xml
    │               └── activity_study.xml
    │           ├── mipmap-anydpi-v26
    │               ├── ic_launcher.xml
    │               └── ic_launcher_round.xml
    │           ├── mipmap-hdpi
    │               ├── ic_launcher.png
    │               └── ic_launcher_round.png
    │           ├── mipmap-mdpi
    │               ├── ic_launcher.png
    │               └── ic_launcher_round.png
    │           ├── mipmap-xhdpi
    │               ├── ic_launcher.png
    │               └── ic_launcher_round.png
    │           ├── mipmap-xxhdpi
    │               ├── ic_launcher.png
    │               └── ic_launcher_round.png
    │           ├── mipmap-xxxhdpi
    │               ├── ic_launcher.png
    │               └── ic_launcher_round.png
    │           ├── values
    │               ├── arrays.xml
    │               ├── colors.xml
    │               ├── strings.xml
    │               └── styles.xml
    │           └── xml
    │               ├── preferences.xml
    │               └── study_preference_fragment.xml
├── build.gradle.kts
├── gradle.properties
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle.kts


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Built application files
 2 | *.apk
 3 | *.ap_
 4 | 
 5 | # Files for the Dalvik VM
 6 | *.dex
 7 | 
 8 | # Java class files
 9 | *.class
10 | 
11 | # Generated files
12 | bin/
13 | gen/
14 | 
15 | # Gradle files
16 | .gradle/
17 | build/
18 | /*/build/
19 | 
20 | # Local configuration file (sdk path, etc)
21 | local.properties
22 | 
23 | # Proguard folder generated by Eclipse
24 | proguard/
25 | 
26 | # Log Files
27 | *.log
28 | 
29 | # Eclipse project files
30 | .classpath
31 | .project
32 | .settings/
33 | 
34 | # Intellij project files
35 | *.iml
36 | *.ipr
37 | *.iws
38 | .idea/
39 | 
40 | # Mac system files
41 | .DS_Store
42 | 
43 | *.keystore
44 | 
45 | captures
46 | 
47 | .externalNativeBuild/
48 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | :running:BGACamera-Android:running:
 2 | ============
 3 | 
 4 | Android 相机开发学习笔记，参考 [Android 相机开发系列](https://www.polarxiong.com/archives/Android%E7%9B%B8%E6%9C%BA%E5%BC%80%E5%8F%91%E7%B3%BB%E5%88%97.html)
 5 | 
 6 | ## 作者联系方式
 7 | 
 8 | | 个人主页 | 邮箱 |
 9 | | ------------- | ------------ |
10 | | <a  href="https://www.bingoogolapple.cn" target="_blank">bingoogolapple.cn</a>  | <a href="mailto:bingoogolapple@gmail.com" target="_blank">bingoogolapple@gmail.com</a> |
11 | 
12 | | 个人微信号 | 微信群 | 公众号 |
13 | | ------------ | ------------ | ------------ |
14 | | <img width="180" alt="个人微信号" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/BGAQrCode.png"> | <img width="180" alt="微信群" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/WeChatGroup1QrCode.jpg"> | <img width="180" alt="公众号" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/GongZhongHao.png"> |
15 | 
16 | | 个人 QQ 号 | QQ 群 |
17 | | ------------ | ------------ |
18 | | <img width="180" alt="个人 QQ 号" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/BGAQQQrCode.jpg"> | <img width="180" alt="QQ 群" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/QQGroup1QrCode.jpg"> |
19 | 
20 | ## 打赏支持作者
21 | 
22 | 如果您觉得 BGA 系列开源库或工具软件帮您节省了大量的开发时间，可以扫描下方的二维码打赏支持。您的支持将鼓励我继续创作，打赏后还可以加我微信免费开通一年 [上帝小助手浏览器扩展/插件开发平台](https://github.com/bingoogolapple/bga-god-assistant-config) 的会员服务
23 | 
24 | | 微信 | QQ | 支付宝 |
25 | | ------------- | ------------- | ------------- |
26 | | <img width="180" alt="微信" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/donate-wechat.jpg"> | <img width="180" alt="QQ" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/donate-qq.jpg"> | <img width="180" alt="支付宝" src="https://github.com/bingoogolapple/bga-god-assistant-config/raw/main/images/donate-alipay.jpg"> |
27 | 
28 | ## 作者项目推荐
29 | 
30 | * 欢迎您使用我开发的第一个独立开发软件产品 [上帝小助手浏览器扩展/插件开发平台](https://github.com/bingoogolapple/bga-god-assistant-config)
31 | 


--------------------------------------------------------------------------------
/app/build.gradle.kts:
--------------------------------------------------------------------------------
 1 | import org.jetbrains.kotlin.config.KotlinCompilerVersion
 2 | 
 3 | plugins {
 4 |     id("com.android.application")
 5 |     id("kotlin-android")
 6 |     id("kotlin-android-extensions")
 7 | }
 8 | 
 9 | android {
10 |     compileSdkVersion(28)
11 | 
12 |     defaultConfig {
13 |         minSdkVersion(19)
14 |         targetSdkVersion(15)
15 |         versionCode = 100
16 |         versionName = "1.0.0"
17 |     }
18 | 
19 |     dataBinding {
20 |         isEnabled = true
21 |     }
22 | 
23 |     buildTypes {
24 |         getByName("release") {
25 |             isMinifyEnabled = true
26 |             proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro")
27 |         }
28 |     }
29 | }
30 | 
31 | dependencies {
32 |     implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar"))))
33 |     implementation("com.android.support:appcompat-v7:28.0.0")
34 |     implementation("com.android.support.constraint:constraint-layout:1.1.3")
35 | 
36 |     implementation(kotlin("stdlib", KotlinCompilerVersion.VERSION))
37 |     implementation("org.jetbrains.anko:anko-commons:0.10.5")
38 |     implementation("pub.devrel:easypermissions:1.0.1")
39 | }
40 | 


--------------------------------------------------------------------------------
/app/proguard-rules.pro:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/proguard-rules.pro


--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:tools="http://schemas.android.com/tools"
 4 |     package="cn.bingoogolapple.camera">
 5 | 
 6 |     <uses-permission android:name="android.permission.CAMERA" />
 7 |     <uses-permission android:name="android.permission.FLASHLIGHT" />
 8 |     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 9 |     <uses-permission android:name="android.permission.RECORD_AUDIO" />
10 |     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
11 |     <!-- 防止 APP 被安装到没有相机的 Android 设备上（目前仅 Google Play 支持） -->
12 |     <uses-feature android:name="android.hardware.camera" />
13 |     <uses-feature
14 |         android:name="android.hardware.camera.autofocus"
15 |         android:required="false" />
16 | 
17 |     <application
18 |         android:allowBackup="true"
19 |         android:icon="@mipmap/ic_launcher"
20 |         android:label="@string/app_name"
21 |         android:roundIcon="@mipmap/ic_launcher_round"
22 |         android:supportsRtl="true"
23 |         android:theme="@style/AppTheme">
24 |         <activity
25 |             android:name=".MainActivity"
26 |             tools:ignore="NewApi">
27 |             <intent-filter>
28 |                 <action android:name="android.intent.action.MAIN" />
29 | 
30 |                 <category android:name="android.intent.category.LAUNCHER" />
31 |             </intent-filter>
32 |         </activity>
33 |         <activity
34 |             android:name=".StudyActivity"
35 |             android:theme="@android:style/Theme.Material.Light"
36 |             tools:ignore="NewApi" />
37 | 
38 |         <activity
39 |             android:name=".PlayActivity"
40 |             android:theme="@android:style/Theme.Material.Light"
41 |             tools:ignore="NewApi" />
42 |     </application>
43 | 
44 | </manifest>


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/CameraPreview.kt:
--------------------------------------------------------------------------------
  1 | package cn.bingoogolapple.camera
  2 | 
  3 | import android.content.Context
  4 | import android.graphics.Rect
  5 | import android.graphics.RectF
  6 | import android.hardware.Camera
  7 | import android.media.CamcorderProfile
  8 | import android.media.MediaActionSound
  9 | import android.media.MediaRecorder
 10 | import android.media.ThumbnailUtils
 11 | import android.net.Uri
 12 | import android.os.Environment
 13 | import android.preference.PreferenceManager
 14 | import android.provider.MediaStore
 15 | import android.support.v4.math.MathUtils
 16 | import android.util.Log
 17 | import android.view.*
 18 | import android.widget.ImageView
 19 | import java.io.File
 20 | import java.io.FileOutputStream
 21 | import java.io.IOException
 22 | import java.text.SimpleDateFormat
 23 | import java.util.*
 24 | 
 25 | 
 26 | /**
 27 |  * 作者:王浩
 28 |  * 创建时间:2018/9/28
 29 |  * 描述:
 30 |  */
 31 | class CameraPreview(context: Context) : SurfaceView(context), SurfaceHolder.Callback, Camera.PreviewCallback {
 32 |     private var mCamera: Camera? = null
 33 |     private var mOutputMediaFileUri: Uri? = null
 34 |     private var mOutputMediaFileType: String? = null
 35 |     private var mMediaRecorder: MediaRecorder? = null
 36 |     private var oldDist = 1f
 37 |     private var touchFocusing = false
 38 | 
 39 |     init {
 40 |         holder.addCallback(this)
 41 |     }
 42 | 
 43 |     fun getCamera(): Camera? {
 44 |         return mCamera
 45 |     }
 46 | 
 47 |     private fun log(parameters: Camera.Parameters) {
 48 |         val log = StringBuilder()
 49 |         log.append("\n相机信息如下：")
 50 |         log.append("\n    支持的预览尺寸有：\n    ")
 51 |         for (previewSize in parameters.supportedPreviewSizes) {
 52 |             log.append("${previewSize.width}x${previewSize.height}").append("、")
 53 |         }
 54 |         log.append("\n支持的拍照尺寸有：\n    ")
 55 |         for (pictureSize in parameters.supportedPictureSizes) {
 56 |             log.append("${pictureSize.width}x${pictureSize.height}").append("、")
 57 |         }
 58 |         log.append("\n支持的录像尺寸有：\n    ")
 59 |         for (videoPictureSize in parameters.supportedVideoSizes) {
 60 |             log.append("${videoPictureSize.width}x${videoPictureSize.height}").append("、")
 61 |         }
 62 |         log.append("\n支持的对焦模式有：\n    ")
 63 |         for (focusMode in parameters.supportedFocusModes) {
 64 |             log.append(focusMode).append("、")
 65 |         }
 66 |         log.append("\n支持的白平衡有：\n    ")
 67 |         for (whiteBalance in parameters.supportedWhiteBalance) {
 68 |             log.append(whiteBalance).append("、")
 69 |         }
 70 |         parameters.supportedSceneModes?.let {
 71 |             log.append("\n支持的场景模式有：\n    ")
 72 |             for (sceneMode in it) {
 73 |                 log.append(sceneMode).append("、")
 74 |             }
 75 |         }
 76 |         log.append("\n支持的闪光灯模式有：\n    ")
 77 |         for (flashMode in parameters.supportedFlashModes) {
 78 |             log.append(flashMode).append("、")
 79 |         }
 80 |         log.append("\n曝光补偿范围为：\n    ${parameters.minExposureCompensation}~${parameters.maxExposureCompensation}")
 81 |         Log.d(TAG, log.toString())
 82 |     }
 83 | 
 84 |     private fun adjustDisplayRatio(rotation: Int) {
 85 |         mCamera?.let {
 86 |             val parent = parent as ViewGroup
 87 |             val rect = Rect()
 88 |             parent.getLocalVisibleRect(rect)
 89 |             val width = rect.width()
 90 |             val height = rect.height()
 91 |             val previewSize = it.parameters.previewSize
 92 |             val previewWidth: Int
 93 |             val previewHeight: Int
 94 |             if (rotation == 90 || rotation == 270) {
 95 |                 previewWidth = previewSize.height
 96 |                 previewHeight = previewSize.width
 97 |             } else {
 98 |                 previewWidth = previewSize.width
 99 |                 previewHeight = previewSize.height
100 |             }
101 | 
102 |             if (width * previewHeight > height * previewWidth) {
103 |                 val scaledChildWidth = previewWidth * height / previewHeight
104 |                 layout((width - scaledChildWidth) / 2, 0, (width + scaledChildWidth) / 2, height)
105 |             } else {
106 |                 val scaledChildHeight = previewHeight * width / previewWidth
107 |                 layout(0, (height - scaledChildHeight) / 2, width, (height + scaledChildHeight) / 2)
108 |             }
109 |         }
110 |     }
111 | 
112 |     private fun openCamera() {
113 |         if (mCamera != null) {
114 |             return
115 |         }
116 | 
117 |         try {
118 |             mCamera = Camera.open()
119 |         } catch (e: Exception) {
120 |             Log.e(TAG, "相机资源被占用：" + e.message)
121 |         }
122 |     }
123 | 
124 |     public fun startPreview() {
125 |         openCamera()
126 |         try {
127 |             mCamera?.apply {
128 |                 // 告知将预览帧数据交给谁
129 |                 setPreviewDisplay(holder)
130 |                 // 每当有预览帧生成时就会回调 onPreviewFrame 方法
131 |                 setPreviewCallback(this@CameraPreview)
132 |                 // 开始预览
133 |                 startPreview()
134 |                 log(parameters)
135 |             }
136 |         } catch (e: IOException) {
137 |             Log.e(TAG, "开始预览失败：" + e.message)
138 |         }
139 |     }
140 | 
141 |     public fun stopPreview() {
142 |         holder.removeCallback(this)
143 |         // 相机是共享资源，使用完后需要释放相机资源
144 |         mCamera?.apply {
145 |             setPreviewCallback(null)
146 |             stopPreview()
147 |             release()
148 |         }
149 |         mCamera = null
150 |     }
151 | 
152 |     override fun onPreviewFrame(data: ByteArray?, camera: Camera?) {
153 |         try {
154 |             Log.i(TAG, "模拟处理预览帧数据")
155 |             Thread.sleep(500)
156 |         } catch (e: InterruptedException) {
157 |             e.printStackTrace()
158 |         }
159 |     }
160 | 
161 |     override fun surfaceCreated(surfaceHolder: SurfaceHolder) {
162 |         startPreview()
163 |     }
164 | 
165 |     override fun surfaceDestroyed(surfaceHolder: SurfaceHolder) {
166 |         stopPreview()
167 |     }
168 | 
169 |     override fun surfaceChanged(holder: SurfaceHolder, format: Int, w: Int, h: Int) {
170 |         mCamera?.apply {
171 |             val rotation = getDisplayOrientation()
172 |             val newParameters = parameters
173 |             // 设置预览帧数据，以及拍摄照片的方向
174 |             newParameters.setRotation(rotation)
175 |             parameters = newParameters
176 |             // 指定预览的旋转角度
177 |             setDisplayOrientation(getDisplayOrientation())
178 |             // 实时调整预览纵横比
179 |             adjustDisplayRatio(rotation)
180 |         }
181 |     }
182 | 
183 |     private fun getDisplayOrientation(): Int {
184 |         val display = (context.getSystemService(Context.WINDOW_SERVICE) as WindowManager).defaultDisplay
185 |         val rotation = display.rotation
186 |         var degrees = 0
187 |         when (rotation) {
188 |             Surface.ROTATION_0 -> degrees = 0
189 |             Surface.ROTATION_90 -> degrees = 90
190 |             Surface.ROTATION_180 -> degrees = 180
191 |             Surface.ROTATION_270 -> degrees = 270
192 |         }
193 | 
194 |         val camInfo = Camera.CameraInfo()
195 |         Camera.getCameraInfo(Camera.CameraInfo.CAMERA_FACING_BACK, camInfo)
196 |         return (camInfo.orientation - degrees + 360) % 360
197 |     }
198 | 
199 |     private fun getAppName(): String {
200 |         return try {
201 |             context.packageManager.getPackageInfo(context.packageName, 0).applicationInfo.loadLabel(context.packageManager).toString()
202 |         } catch (e: Exception) {
203 |             // 利用系统api getPackageName()得到的包名，这个异常根本不可能发生
204 |             ""
205 |         }
206 |     }
207 | 
208 |     private fun getOutputMediaFile(type: Int): File? {
209 |         val mediaStorageDir = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), getAppName())
210 |         if (!mediaStorageDir.exists()) {
211 |             if (!mediaStorageDir.mkdirs()) {
212 |                 Log.d(TAG, "创建媒体文件目录失败，请检查存储权限")
213 |                 return null
214 |             }
215 |         }
216 |         val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss").format(Date())
217 |         val mediaFile: File
218 |         when (type) {
219 |             MEDIA_TYPE_IMAGE -> {
220 |                 mediaFile = File(mediaStorageDir.path + File.separator + "IMG_" + timeStamp + ".jpg")
221 |                 mOutputMediaFileType = "image/*"
222 |             }
223 |             MEDIA_TYPE_VIDEO -> {
224 |                 mediaFile = File(mediaStorageDir.path + File.separator + "VID_" + timeStamp + ".mp4")
225 |                 mOutputMediaFileType = "video/*"
226 |             }
227 |             else -> return null
228 |         }
229 |         mOutputMediaFileUri = Uri.fromFile(mediaFile)
230 |         return mediaFile
231 |     }
232 | 
233 |     fun getOutputMediaFileUri(): Uri? {
234 |         return mOutputMediaFileUri
235 |     }
236 | 
237 |     fun getOutputMediaFileType(): String? {
238 |         return mOutputMediaFileType
239 |     }
240 | 
241 |     fun takePicture(previewIv: ImageView) {
242 |         mCamera?.apply {
243 |             takePicture(Camera.ShutterCallback {
244 |                 Log.d(TAG, "按下了快门，播放声音")
245 |                 MediaActionSound().play(MediaActionSound.SHUTTER_CLICK)
246 |             }, Camera.PictureCallback { data, camera ->
247 |                 Log.d(TAG, "原始数据，不知道为什么返回的 data 一直为空")
248 |             }, Camera.PictureCallback { data, camera ->
249 |                 Log.d(TAG, "jpeg 数据。主线程回调的 " + data.size)
250 |                 // TODO 子线程保存图片文件
251 |                 val pictureFile = getOutputMediaFile(MEDIA_TYPE_IMAGE)
252 |                 if (pictureFile == null) {
253 |                     Log.d(TAG, "创建媒体文件失败，请检查存储权限")
254 |                     return@PictureCallback
255 |                 }
256 |                 try {
257 |                     FileOutputStream(pictureFile).use {
258 |                         it.write(data)
259 |                     }
260 | 
261 |                     previewIv.setImageURI(mOutputMediaFileUri)
262 | 
263 |                     camera.startPreview()
264 |                 } catch (e: Exception) {
265 |                     Log.d(TAG, "保存图片失败 " + e.message)
266 |                 }
267 |             })
268 |         }
269 |     }
270 | 
271 |     fun startRecording(): Boolean {
272 |         if (prepareVideoRecorder()) {
273 |             mMediaRecorder?.start()
274 |             return true
275 |         } else {
276 |             releaseMediaRecorder()
277 |         }
278 |         return false
279 |     }
280 | 
281 |     fun stopRecording(previewIv: ImageView) {
282 |         mMediaRecorder?.stop()
283 |         mOutputMediaFileUri?.apply {
284 |             val thumbnail = ThumbnailUtils.createVideoThumbnail(path, MediaStore.Video.Thumbnails.MINI_KIND)
285 |             previewIv.setImageBitmap(thumbnail)
286 |         }
287 |         releaseMediaRecorder()
288 |     }
289 | 
290 |     fun isRecording(): Boolean {
291 |         return mMediaRecorder != null
292 |     }
293 | 
294 |     private fun prepareVideoRecorder(): Boolean {
295 |         openCamera()
296 |         mMediaRecorder = MediaRecorder()
297 | 
298 |         mCamera?.unlock()
299 |         mMediaRecorder?.apply {
300 | 
301 |             setCamera(mCamera)
302 | 
303 |             setAudioSource(MediaRecorder.AudioSource.CAMCORDER)
304 |             setVideoSource(MediaRecorder.VideoSource.CAMERA)
305 |             setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH))
306 | 
307 |             val prefs = PreferenceManager.getDefaultSharedPreferences(context)
308 |             val prefVideoSize = prefs.getString("video_size", "")
309 |             if (prefVideoSize.isNotBlank()) {
310 |                 val split = prefVideoSize.split("x".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
311 |                 setVideoSize(Integer.parseInt(split[0]), Integer.parseInt(split[1]))
312 |             }
313 |             setOutputFile(getOutputMediaFile(MEDIA_TYPE_VIDEO).toString())
314 |             setPreviewDisplay(holder.surface)
315 | 
316 |             try {
317 |                 // 视频的旋转并不是编码层面的旋转，视频帧数据并没有发生旋转，而只是在视频中增加了参数，希望播放器按照指定的旋转角度旋转后播放，所以具体效果因播放器而异
318 |                 setOrientationHint(getDisplayOrientation())
319 |                 prepare()
320 |             } catch (e: IllegalStateException) {
321 |                 Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.message)
322 |                 releaseMediaRecorder()
323 |                 return false
324 |             } catch (e: IOException) {
325 |                 Log.d(TAG, "IOException preparing MediaRecorder: " + e.message)
326 |                 releaseMediaRecorder()
327 |                 return false
328 |             }
329 |         }
330 |         return true
331 |     }
332 | 
333 |     private fun releaseMediaRecorder() {
334 |         mMediaRecorder?.apply {
335 |             reset()
336 |             release()
337 |             mMediaRecorder = null
338 |         }
339 |         mCamera?.apply { lock() }
340 |     }
341 | 
342 |     override fun onTouchEvent(event: MotionEvent): Boolean {
343 |         mCamera?.let {
344 |             if (event.pointerCount == 1) {
345 |                 if (event.action and MotionEvent.ACTION_MASK == MotionEvent.ACTION_UP) {
346 |                     handleFocusMetering(event, it)
347 |                 }
348 |             } else {
349 |                 when (event.action and MotionEvent.ACTION_MASK) {
350 |                     MotionEvent.ACTION_POINTER_DOWN -> oldDist = getFingerSpacing(event)
351 |                     MotionEvent.ACTION_UP, MotionEvent.ACTION_MOVE -> {
352 |                         val newDist = getFingerSpacing(event)
353 |                         if (newDist > oldDist) {
354 |                             handleZoom(true, it)
355 |                         } else if (newDist < oldDist) {
356 |                             handleZoom(false, it)
357 |                         }
358 |                         oldDist = newDist
359 |                     }
360 |                 }
361 |             }
362 |         }
363 |         return true
364 |     }
365 | 
366 |     private fun handleFocusMetering(event: MotionEvent, camera: Camera) {
367 |         if (touchFocusing) {
368 |             return
369 |         }
370 |         touchFocusing = true
371 | 
372 |         var isNeedUpdate = false
373 |         val newParams = camera.parameters
374 |         val currentFocusMode = newParams.focusMode
375 |         Log.i(TAG, "老的对焦模式为$currentFocusMode")
376 |         if (newParams.maxNumFocusAreas > 0) {
377 |             Log.i(TAG, "支持触摸对焦")
378 |             isNeedUpdate = true
379 |             val focusAreas = arrayListOf<Camera.Area>()
380 |             val focusRect = calculateTapArea(event.x, event.y, 1f, width, height)
381 |             focusAreas.add(Camera.Area(focusRect, 800))
382 |             newParams.focusAreas = focusAreas
383 |             newParams.focusMode = Camera.Parameters.FOCUS_MODE_MACRO
384 |         } else {
385 |             Log.i(TAG, "不支持触摸对焦")
386 |         }
387 | 
388 |         if (newParams.maxNumMeteringAreas > 0) {
389 |             Log.i(TAG, "支持触摸测光")
390 |             isNeedUpdate = true
391 |             val meteringAreas = arrayListOf<Camera.Area>()
392 |             val meteringRect = calculateTapArea(event.x, event.y, 1.5f, width, height)
393 |             meteringAreas.add(Camera.Area(meteringRect, 800))
394 |             newParams.meteringAreas = meteringAreas
395 |         } else {
396 |             Log.i(TAG, "不支持触摸测光")
397 |         }
398 | 
399 |         if (isNeedUpdate) {
400 |             camera.cancelAutoFocus()
401 |             camera.parameters = newParams
402 |             camera.autoFocus { success, camera ->
403 |                 if (success) {
404 |                     Log.i(TAG, "对焦成功")
405 |                 } else {
406 |                     Log.i(TAG, "对焦失败")
407 |                 }
408 |                 touchFocusing = false
409 |                 val recoverParams = camera.parameters
410 |                 recoverParams.focusMode = currentFocusMode
411 |                 camera.parameters = recoverParams
412 |                 Log.i(TAG, "还原对焦模式")
413 |             }
414 |         } else {
415 |             touchFocusing = false
416 |         }
417 |     }
418 | 
419 |     private fun handleZoom(isZoomIn: Boolean, camera: Camera) {
420 |         val params = camera.parameters
421 |         if (params.isZoomSupported) {
422 |             var zoom = params.zoom
423 |             if (isZoomIn && zoom < params.maxZoom) {
424 |                 Log.i(TAG, "放大")
425 |                 zoom++
426 |             } else if (!isZoomIn && zoom > 0) {
427 |                 Log.i(TAG, "缩小")
428 |                 zoom--
429 |             } else {
430 |                 Log.i(TAG, "既不放大也不缩小")
431 |             }
432 |             params.zoom = zoom
433 |             camera.parameters = params
434 |         } else {
435 |             Log.i(TAG, "不支持缩放")
436 |         }
437 |     }
438 | 
439 |     companion object {
440 |         private val TAG = CameraPreview::class.java.simpleName
441 |         private const val MEDIA_TYPE_IMAGE = 1
442 |         private const val MEDIA_TYPE_VIDEO = 2
443 | 
444 |         private fun calculateTapArea(x: Float, y: Float, coefficient: Float, width: Int, height: Int): Rect {
445 |             val focusAreaSize = 300f
446 |             val areaSize = (focusAreaSize * coefficient).toInt()
447 |             val centerX = (x / width * 2000 - 1000).toInt()
448 |             val centerY = (y / height * 2000 - 1000).toInt()
449 | 
450 |             val halfAreaSize = areaSize / 2
451 |             val rectF = RectF(MathUtils.clamp(centerX - halfAreaSize, -1000, 1000).toFloat(),
452 |                     MathUtils.clamp(centerY - halfAreaSize, -1000, 1000).toFloat(),
453 |                     MathUtils.clamp(centerX + halfAreaSize, -1000, 1000).toFloat(),
454 |                     MathUtils.clamp(centerY + halfAreaSize, -1000, 1000).toFloat())
455 |             return Rect(Math.round(rectF.left), Math.round(rectF.top), Math.round(rectF.right), Math.round(rectF.bottom))
456 |         }
457 | 
458 |         private fun getFingerSpacing(event: MotionEvent): Float {
459 |             val x = event.getX(0) - event.getX(1)
460 |             val y = event.getY(0) - event.getY(1)
461 |             return Math.sqrt((x * x + y * y).toDouble()).toFloat()
462 |         }
463 |     }
464 | }


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/MainActivity.kt:
--------------------------------------------------------------------------------
  1 | package cn.bingoogolapple.camera
  2 | 
  3 | import android.Manifest
  4 | import android.app.Activity
  5 | import android.content.Intent
  6 | import android.os.Bundle
  7 | import android.preference.PreferenceManager
  8 | import android.view.View
  9 | import android.widget.Button
 10 | import android.widget.FrameLayout
 11 | import android.widget.ImageView
 12 | import pub.devrel.easypermissions.AfterPermissionGranted
 13 | import pub.devrel.easypermissions.EasyPermissions
 14 | 
 15 | class MainActivity : Activity(), EasyPermissions.PermissionCallbacks, View.OnClickListener {
 16 |     private lateinit var mPreViewContainerFl: FrameLayout
 17 |     private lateinit var mPreview: CameraPreview
 18 |     private lateinit var mPreviewIv: ImageView
 19 | 
 20 |     override fun onCreate(savedInstanceState: Bundle?) {
 21 |         super.onCreate(savedInstanceState)
 22 |         setContentView(R.layout.activity_main)
 23 |         mPreViewContainerFl = findViewById(R.id.fl_main_preview_container)
 24 | 
 25 |         mPreview = CameraPreview(this)
 26 |         mPreViewContainerFl.addView(mPreview)
 27 | 
 28 |         mPreviewIv = findViewById(R.id.iv_main_preview)
 29 | 
 30 |         findViewById<Button>(R.id.btn_main_settings).setOnClickListener(this)
 31 |         findViewById<Button>(R.id.btn_main_take_picture).setOnClickListener(this)
 32 |         findViewById<Button>(R.id.btn_main_capture_video).setOnClickListener(this)
 33 |         findViewById<ImageView>(R.id.iv_main_preview).setOnClickListener(this)
 34 |         findViewById<Button>(R.id.btn_main_study).setOnClickListener(this)
 35 |     }
 36 | 
 37 |     override fun onClick(v: View) {
 38 |         when (v.id) {
 39 |             R.id.btn_main_settings -> {
 40 |                 initCamera()
 41 |                 fragmentManager.beginTransaction().replace(R.id.fl_main_preview_container,
 42 |                         SettingsFragment()).addToBackStack(null).commit()
 43 |             }
 44 |             R.id.btn_main_take_picture -> mPreview.takePicture(mPreviewIv)
 45 |             R.id.btn_main_capture_video -> {
 46 |                 if (mPreview.isRecording()) {
 47 |                     mPreview.stopRecording(mPreviewIv)
 48 |                     findViewById<Button>(R.id.btn_main_capture_video).text = "录像"
 49 |                 } else if (mPreview.startRecording()) {
 50 |                     findViewById<Button>(R.id.btn_main_capture_video).text = "停止"
 51 |                 }
 52 |             }
 53 |             R.id.iv_main_preview -> {
 54 |                 val intent = Intent(this, PlayActivity::class.java)
 55 |                 intent.setDataAndType(mPreview.getOutputMediaFileUri(), mPreview.getOutputMediaFileType())
 56 |                 startActivity(intent)
 57 |             }
 58 |             R.id.btn_main_study -> startActivity(Intent(this, StudyActivity::class.java))
 59 |         }
 60 |     }
 61 | 
 62 |     private fun initCamera() {
 63 |         SettingsFragment.passCamera(mPreview.getCamera())
 64 |         PreferenceManager.setDefaultValues(this, R.xml.preferences, false)
 65 |         SettingsFragment.setDefault(PreferenceManager.getDefaultSharedPreferences(this))
 66 |         SettingsFragment.init(PreferenceManager.getDefaultSharedPreferences(this))
 67 |     }
 68 | 
 69 |     override fun onStart() {
 70 |         super.onStart()
 71 |         requestPermissions()
 72 |     }
 73 | 
 74 |     override fun onResume() {
 75 |         super.onResume()
 76 |         mPreview.startPreview()
 77 |     }
 78 | 
 79 |     override fun onPause() {
 80 |         mPreview.stopPreview()
 81 |         super.onPause()
 82 |     }
 83 | 
 84 |     override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
 85 |         EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this)
 86 |     }
 87 | 
 88 |     override fun onPermissionsGranted(requestCode: Int, perms: List<String>) {
 89 |     }
 90 | 
 91 |     override fun onPermissionsDenied(requestCode: Int, perms: List<String>) {
 92 |     }
 93 | 
 94 |     @AfterPermissionGranted(REQUEST_CODE_QRCODE_PERMISSIONS)
 95 |     private fun requestPermissions() {
 96 |         val perms = arrayOf(Manifest.permission.CAMERA, Manifest.permission.READ_EXTERNAL_STORAGE)
 97 |         if (!EasyPermissions.hasPermissions(this, *perms)) {
 98 |             EasyPermissions.requestPermissions(this, "扫描二维码需要打开相机和散光灯的权限", REQUEST_CODE_QRCODE_PERMISSIONS, *perms)
 99 |         }
100 |     }
101 | 
102 |     companion object {
103 |         const val REQUEST_CODE_QRCODE_PERMISSIONS = 1
104 |     }
105 | }
106 | 


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/PlayActivity.kt:
--------------------------------------------------------------------------------
 1 | package cn.bingoogolapple.camera
 2 | 
 3 | import android.app.Activity
 4 | import android.os.Bundle
 5 | import android.widget.ImageView
 6 | import android.widget.MediaController
 7 | import android.widget.RelativeLayout
 8 | import android.widget.VideoView
 9 | 
10 | 
11 | /**
12 |  * 作者:王浩
13 |  * 创建时间:2018/9/29
14 |  * 描述:
15 |  */
16 | class PlayActivity : Activity() {
17 | 
18 |     public override fun onCreate(savedInstanceState: Bundle?) {
19 |         super.onCreate(savedInstanceState)
20 |         val relativeLayout = RelativeLayout(this)
21 |         val layoutParams = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT)
22 |         layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT)
23 |         val uri = intent.data
24 |         if (intent.type == "image/*") {
25 |             val view = ImageView(this)
26 |             view.setImageURI(uri)
27 |             view.layoutParams = layoutParams
28 |             relativeLayout.addView(view)
29 |         } else {
30 |             val mc = MediaController(this)
31 |             val view = VideoView(this)
32 |             mc.setAnchorView(view)
33 |             mc.setMediaPlayer(view)
34 |             view.setMediaController(mc)
35 |             view.setVideoURI(uri)
36 |             view.start()
37 |             view.layoutParams = layoutParams
38 |             relativeLayout.addView(view)
39 |         }
40 |         setContentView(relativeLayout, layoutParams)
41 |     }
42 | }


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/SettingsFragment.kt:
--------------------------------------------------------------------------------
  1 | package cn.bingoogolapple.camera
  2 | 
  3 | import android.content.SharedPreferences
  4 | import android.hardware.Camera
  5 | import android.os.Bundle
  6 | import android.preference.ListPreference
  7 | import android.preference.Preference
  8 | import android.preference.PreferenceFragment
  9 | import android.preference.PreferenceGroup
 10 | 
 11 | /**
 12 |  * 作者:王浩
 13 |  * 创建时间:2018/9/28
 14 |  * 描述:
 15 |  */
 16 | class SettingsFragment : PreferenceFragment(), SharedPreferences.OnSharedPreferenceChangeListener {
 17 |     override fun onCreate(savedInstanceState: Bundle?) {
 18 |         super.onCreate(savedInstanceState)
 19 |         addPreferencesFromResource(R.xml.preferences)
 20 | 
 21 |         mParameters?.let {
 22 |             loadSupportedPreviewSize(it)
 23 |             loadSupportedPictureSize(it)
 24 |             loadSupportedVideoSize(it)
 25 |             loadSupportedFlashMode(it)
 26 |             loadSupportedFocusMode(it)
 27 |             loadSupportedWhiteBalance(it)
 28 |             loadSupportedSceneMode(it)
 29 |             loadSupportedExposeCompensation(it)
 30 |         }
 31 | 
 32 |         initPreferenceSummary(preferenceScreen)
 33 |     }
 34 | 
 35 |     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String) {
 36 |         when (key) {
 37 |             KEY_PREF_PREV_SIZE -> setPreviewSize(sharedPreferences.getString(key, ""))
 38 |             KEY_PREF_PIC_SIZE -> setPictureSize(sharedPreferences.getString(key, ""))
 39 |             KEY_PREF_FOCUS_MODE -> setFocusMode(sharedPreferences.getString(key, ""))
 40 |             KEY_PREF_FLASH_MODE -> setFlashMode(sharedPreferences.getString(key, ""))
 41 |             KEY_PREF_WHITE_BALANCE -> setWhiteBalance(sharedPreferences.getString(key, ""))
 42 |             KEY_PREF_SCENE_MODE -> setSceneMode(sharedPreferences.getString(key, ""))
 43 |             KEY_PREF_EXPOS_COMP -> setExposComp(sharedPreferences.getString(key, ""))
 44 |             KEY_PREF_JPEG_QUALITY -> setJpegQuality(sharedPreferences.getString(key, ""))
 45 |             KEY_PREF_GPS_DATA -> setGpsData(sharedPreferences.getBoolean(key, false))
 46 |         }
 47 |         mCamera?.let {
 48 |             it.stopPreview()
 49 |             it.parameters = mParameters
 50 |             it.startPreview()
 51 |         }
 52 | 
 53 |         updatePreferenceSummary(findPreference(key))
 54 |     }
 55 | 
 56 |     override fun onResume() {
 57 |         super.onResume()
 58 |         preferenceScreen.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
 59 |     }
 60 | 
 61 |     override fun onPause() {
 62 |         super.onPause()
 63 |         preferenceScreen.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
 64 |     }
 65 | 
 66 |     private fun loadSupportedPreviewSize(parameters: Camera.Parameters) {
 67 |         cameraSizeListToListPreference(parameters.supportedPreviewSizes, KEY_PREF_PREV_SIZE)
 68 |     }
 69 | 
 70 |     private fun loadSupportedPictureSize(parameters: Camera.Parameters) {
 71 |         cameraSizeListToListPreference(parameters.supportedPictureSizes, KEY_PREF_PIC_SIZE)
 72 |     }
 73 | 
 74 |     private fun loadSupportedVideoSize(parameters: Camera.Parameters) {
 75 |         cameraSizeListToListPreference(parameters.supportedVideoSizes, KEY_PREF_VIDEO_SIZE)
 76 |     }
 77 | 
 78 |     private fun loadSupportedFlashMode(parameters: Camera.Parameters) {
 79 |         stringListToListPreference(parameters.supportedFlashModes, KEY_PREF_FLASH_MODE)
 80 |     }
 81 | 
 82 |     private fun loadSupportedFocusMode(parameters: Camera.Parameters) {
 83 |         stringListToListPreference(parameters.supportedFocusModes, KEY_PREF_FOCUS_MODE)
 84 | 
 85 |     }
 86 | 
 87 |     private fun loadSupportedWhiteBalance(parameters: Camera.Parameters) {
 88 |         stringListToListPreference(parameters.supportedWhiteBalance, KEY_PREF_WHITE_BALANCE)
 89 |     }
 90 | 
 91 |     private fun loadSupportedSceneMode(parameters: Camera.Parameters) {
 92 |         stringListToListPreference(parameters.supportedSceneModes, KEY_PREF_SCENE_MODE)
 93 |     }
 94 | 
 95 |     private fun loadSupportedExposeCompensation(parameters: Camera.Parameters) {
 96 |         val exposComp = arrayListOf<String>()
 97 |         for (value in parameters.minExposureCompensation..parameters.maxExposureCompensation) {
 98 |             exposComp.add(Integer.toString(value))
 99 |         }
100 |         stringListToListPreference(exposComp, KEY_PREF_EXPOS_COMP)
101 |     }
102 | 
103 |     private fun cameraSizeListToListPreference(list: List<Camera.Size>, key: String) {
104 |         val stringList = arrayListOf<String>()
105 |         for (size in list) {
106 |             stringList.add(size.width.toString() + "x" + size.height)
107 |         }
108 |         stringListToListPreference(stringList, key)
109 |     }
110 | 
111 |     private fun stringListToListPreference(list: List<String>?, key: String) {
112 |         val listPref = preferenceScreen.findPreference(key) as ListPreference
113 |         val charSeq = list?.toTypedArray() ?: arrayOf()
114 |         listPref.entries = charSeq
115 |         listPref.entryValues = charSeq
116 |     }
117 | 
118 |     companion object {
119 |         private val TAG = SettingsFragment::class.java.simpleName
120 |         private const val KEY_PREF_PREV_SIZE = "preview_size"
121 |         private const val KEY_PREF_PIC_SIZE = "picture_size"
122 |         private const val KEY_PREF_VIDEO_SIZE = "video_size"
123 |         private const val KEY_PREF_FLASH_MODE = "flash_mode"
124 |         private const val KEY_PREF_FOCUS_MODE = "focus_mode"
125 |         private const val KEY_PREF_WHITE_BALANCE = "white_balance"
126 |         private const val KEY_PREF_SCENE_MODE = "scene_mode"
127 |         private const val KEY_PREF_GPS_DATA = "gps_data"
128 |         private const val KEY_PREF_EXPOS_COMP = "exposure_compensation"
129 |         private const val KEY_PREF_JPEG_QUALITY = "jpeg_quality"
130 | 
131 |         private var mCamera: Camera? = null
132 |         private var mParameters: Camera.Parameters? = null
133 | 
134 |         fun passCamera(camera: Camera?) {
135 |             mCamera = camera
136 |             mParameters = camera?.parameters
137 |         }
138 | 
139 |         fun init(sharedPref: SharedPreferences) {
140 |             setPreviewSize(sharedPref.getString(KEY_PREF_PREV_SIZE, "")!!)
141 |             setPictureSize(sharedPref.getString(KEY_PREF_PIC_SIZE, "")!!)
142 |             setFlashMode(sharedPref.getString(KEY_PREF_FLASH_MODE, ""))
143 |             setFocusMode(sharedPref.getString(KEY_PREF_FOCUS_MODE, ""))
144 |             setWhiteBalance(sharedPref.getString(KEY_PREF_WHITE_BALANCE, ""))
145 |             setSceneMode(sharedPref.getString(KEY_PREF_SCENE_MODE, ""))
146 |             setExposComp(sharedPref.getString(KEY_PREF_EXPOS_COMP, ""))
147 |             setJpegQuality(sharedPref.getString(KEY_PREF_JPEG_QUALITY, ""))
148 |             setGpsData(sharedPref.getBoolean(KEY_PREF_GPS_DATA, false))
149 |             mCamera?.let {
150 |                 it.stopPreview()
151 |                 it.parameters = mParameters
152 |                 it.startPreview()
153 |             }
154 |         }
155 | 
156 |         fun setPreviewSize(value: String) {
157 |             mParameters?.apply {
158 |                 val split = value.split("x".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
159 |                 setPreviewSize(split[0].toInt(), split[1].toInt())
160 |             }
161 |         }
162 | 
163 |         fun setPictureSize(value: String) {
164 |             mParameters?.apply {
165 |                 val split = value.split("x".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
166 |                 setPictureSize(split[0].toInt(), split[1].toInt())
167 |             }
168 |         }
169 | 
170 |         fun setFocusMode(value: String?) {
171 |             mParameters?.apply { focusMode = value }
172 |         }
173 | 
174 |         fun setFlashMode(value: String?) {
175 |             mParameters?.apply { flashMode = value }
176 |         }
177 | 
178 |         fun setWhiteBalance(value: String?) {
179 |             mParameters?.apply { whiteBalance = value }
180 |         }
181 | 
182 |         fun setSceneMode(value: String?) {
183 |             mParameters?.apply { sceneMode = value }
184 |         }
185 | 
186 |         fun setExposComp(value: String?) {
187 |             mParameters?.apply { exposureCompensation = Integer.parseInt(value!!) }
188 |         }
189 | 
190 |         fun setJpegQuality(value: String?) {
191 |             mParameters?.apply { jpegQuality = Integer.parseInt(value!!) }
192 |         }
193 | 
194 |         fun setGpsData(value: Boolean) {
195 |             if (!value) {
196 |                 mParameters?.apply { removeGpsData() }
197 |             }
198 |         }
199 | 
200 |         fun setDefault(sharedPreferences: SharedPreferences) {
201 |             val valPreviewSize = sharedPreferences.getString(KEY_PREF_PREV_SIZE, null)
202 |             if (valPreviewSize == null) {
203 |                 mParameters?.apply {
204 |                     val editor = sharedPreferences.edit()
205 |                     editor.putString(KEY_PREF_PREV_SIZE, previewSize.width.toString() + "x" + previewSize.height)
206 |                     editor.putString(KEY_PREF_PIC_SIZE, pictureSize.width.toString() + "x" + pictureSize.height)
207 |                     editor.putString(KEY_PREF_VIDEO_SIZE, preferredPreviewSizeForVideo.width.toString() + "x" + preferredPreviewSizeForVideo.height)
208 |                     if (supportedFocusModes.contains("continuous-picture")) {
209 |                         editor.putString(KEY_PREF_FOCUS_MODE, "continuous-picture")
210 |                     } else {
211 |                         editor.putString(KEY_PREF_FOCUS_MODE, "continuous-video")
212 |                     }
213 |                     editor.apply()
214 |                 }
215 |             }
216 |         }
217 | 
218 |         private fun initPreferenceSummary(preference: Preference) {
219 |             if (preference is PreferenceGroup) {
220 |                 for (preferenceIndex in 0 until preference.preferenceCount) {
221 |                     initPreferenceSummary(preference.getPreference(preferenceIndex))
222 |                 }
223 |             } else {
224 |                 updatePreferenceSummary(preference)
225 |             }
226 |         }
227 | 
228 |         private fun updatePreferenceSummary(preference: Preference) {
229 |             if (preference is ListPreference) {
230 |                 preference.setSummary(preference.entry)
231 |             }
232 |         }
233 |     }
234 | }


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/StudyActivity.kt:
--------------------------------------------------------------------------------
 1 | package cn.bingoogolapple.camera
 2 | 
 3 | import android.app.Activity
 4 | import android.os.Bundle
 5 | 
 6 | class StudyActivity : Activity() {
 7 | 
 8 |     override fun onCreate(savedInstanceState: Bundle?) {
 9 |         super.onCreate(savedInstanceState)
10 |         setContentView(R.layout.activity_study)
11 | 
12 |         fragmentManager.beginTransaction().replace(R.id.fl_study_container, StudyFragment()).commit()
13 |     }
14 | }
15 | 


--------------------------------------------------------------------------------
/app/src/main/java/cn/bingoogolapple/camera/StudyFragment.kt:
--------------------------------------------------------------------------------
 1 | package cn.bingoogolapple.camera
 2 | 
 3 | import android.content.SharedPreferences
 4 | import android.os.Bundle
 5 | import android.preference.ListPreference
 6 | import android.preference.PreferenceFragment
 7 | import android.preference.SwitchPreference
 8 | import android.util.Log
 9 | 
10 | 
11 | /**
12 |  * 作者:王浩
13 |  * 创建时间:2018/9/28
14 |  * 描述:
15 |  */
16 | class StudyFragment : PreferenceFragment(), SharedPreferences.OnSharedPreferenceChangeListener {
17 | 
18 |     override fun onCreate(savedInstanceState: Bundle?) {
19 |         super.onCreate(savedInstanceState)
20 |         addPreferencesFromResource(R.xml.study_preference_fragment)
21 | 
22 |         val oneOne: ListPreference = findPreference("one_one") as ListPreference
23 |         oneOne.setOnPreferenceChangeListener { preference, newValue ->
24 |             Log.d("BGA", "newValue is " + newValue)
25 |             return@setOnPreferenceChangeListener true
26 |         }
27 |         val oneTwo: SwitchPreference = findPreference("one_two") as SwitchPreference
28 |         oneTwo.setOnPreferenceClickListener {
29 |             Log.d("BGA", "点击了 " + it.title)
30 |             return@setOnPreferenceClickListener false
31 |         }
32 |     }
33 | 
34 |     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String) {
35 |         if (key.endsWith("two")) {
36 |             Log.d("BGA", key + " is " + sharedPreferences.getBoolean(key, false))
37 |         } else {
38 |             Log.d("BGA", key + " is " + sharedPreferences.getString(key, ""))
39 |         }
40 |     }
41 | 
42 |     override fun onResume() {
43 |         super.onResume()
44 |         preferenceScreen.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
45 |     }
46 | 
47 |     override fun onPause() {
48 |         preferenceScreen.sharedPreferences.unregisterOnSharedPreferenceChangeListener(this)
49 |         super.onPause()
50 |     }
51 | 
52 |     companion object {
53 |     }
54 | }


--------------------------------------------------------------------------------
/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:aapt="http://schemas.android.com/aapt"
 3 |     android:height="108dp"
 4 |     android:viewportHeight="108"
 5 |     android:viewportWidth="108"
 6 |     android:width="108dp">
 7 |     <path
 8 |         android:fillType="evenOdd"
 9 |         android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
10 |         android:strokeColor="#00000000"
11 |         android:strokeWidth="1">
12 |         <aapt:attr name="android:fillColor">
13 |             <gradient
14 |                 android:endX="78.5885"
15 |                 android:endY="90.9159"
16 |                 android:startX="48.7653"
17 |                 android:startY="61.0927"
18 |                 android:type="linear">
19 |                 <item
20 |                     android:color="#44000000"
21 |                     android:offset="0.0" />
22 |                 <item
23 |                     android:color="#00000000"
24 |                     android:offset="1.0" />
25 |             </gradient>
26 |         </aapt:attr>
27 |     </path>
28 |     <path
29 |         android:fillColor="#FFFFFF"
30 |         android:fillType="nonZero"
31 |         android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
32 |         android:strokeColor="#00000000"
33 |         android:strokeWidth="1" />
34 | </vector>
35 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_background.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <vector
  3 |     xmlns:android="http://schemas.android.com/apk/res/android"
  4 |     android:height="108dp"
  5 |     android:viewportHeight="108"
  6 |     android:viewportWidth="108"
  7 |     android:width="108dp">
  8 |     <path
  9 |         android:fillColor="#26A69A"
 10 |         android:pathData="M0,0h108v108h-108z" />
 11 |     <path
 12 |         android:fillColor="#00000000"
 13 |         android:pathData="M9,0L9,108"
 14 |         android:strokeColor="#33FFFFFF"
 15 |         android:strokeWidth="0.8" />
 16 |     <path
 17 |         android:fillColor="#00000000"
 18 |         android:pathData="M19,0L19,108"
 19 |         android:strokeColor="#33FFFFFF"
 20 |         android:strokeWidth="0.8" />
 21 |     <path
 22 |         android:fillColor="#00000000"
 23 |         android:pathData="M29,0L29,108"
 24 |         android:strokeColor="#33FFFFFF"
 25 |         android:strokeWidth="0.8" />
 26 |     <path
 27 |         android:fillColor="#00000000"
 28 |         android:pathData="M39,0L39,108"
 29 |         android:strokeColor="#33FFFFFF"
 30 |         android:strokeWidth="0.8" />
 31 |     <path
 32 |         android:fillColor="#00000000"
 33 |         android:pathData="M49,0L49,108"
 34 |         android:strokeColor="#33FFFFFF"
 35 |         android:strokeWidth="0.8" />
 36 |     <path
 37 |         android:fillColor="#00000000"
 38 |         android:pathData="M59,0L59,108"
 39 |         android:strokeColor="#33FFFFFF"
 40 |         android:strokeWidth="0.8" />
 41 |     <path
 42 |         android:fillColor="#00000000"
 43 |         android:pathData="M69,0L69,108"
 44 |         android:strokeColor="#33FFFFFF"
 45 |         android:strokeWidth="0.8" />
 46 |     <path
 47 |         android:fillColor="#00000000"
 48 |         android:pathData="M79,0L79,108"
 49 |         android:strokeColor="#33FFFFFF"
 50 |         android:strokeWidth="0.8" />
 51 |     <path
 52 |         android:fillColor="#00000000"
 53 |         android:pathData="M89,0L89,108"
 54 |         android:strokeColor="#33FFFFFF"
 55 |         android:strokeWidth="0.8" />
 56 |     <path
 57 |         android:fillColor="#00000000"
 58 |         android:pathData="M99,0L99,108"
 59 |         android:strokeColor="#33FFFFFF"
 60 |         android:strokeWidth="0.8" />
 61 |     <path
 62 |         android:fillColor="#00000000"
 63 |         android:pathData="M0,9L108,9"
 64 |         android:strokeColor="#33FFFFFF"
 65 |         android:strokeWidth="0.8" />
 66 |     <path
 67 |         android:fillColor="#00000000"
 68 |         android:pathData="M0,19L108,19"
 69 |         android:strokeColor="#33FFFFFF"
 70 |         android:strokeWidth="0.8" />
 71 |     <path
 72 |         android:fillColor="#00000000"
 73 |         android:pathData="M0,29L108,29"
 74 |         android:strokeColor="#33FFFFFF"
 75 |         android:strokeWidth="0.8" />
 76 |     <path
 77 |         android:fillColor="#00000000"
 78 |         android:pathData="M0,39L108,39"
 79 |         android:strokeColor="#33FFFFFF"
 80 |         android:strokeWidth="0.8" />
 81 |     <path
 82 |         android:fillColor="#00000000"
 83 |         android:pathData="M0,49L108,49"
 84 |         android:strokeColor="#33FFFFFF"
 85 |         android:strokeWidth="0.8" />
 86 |     <path
 87 |         android:fillColor="#00000000"
 88 |         android:pathData="M0,59L108,59"
 89 |         android:strokeColor="#33FFFFFF"
 90 |         android:strokeWidth="0.8" />
 91 |     <path
 92 |         android:fillColor="#00000000"
 93 |         android:pathData="M0,69L108,69"
 94 |         android:strokeColor="#33FFFFFF"
 95 |         android:strokeWidth="0.8" />
 96 |     <path
 97 |         android:fillColor="#00000000"
 98 |         android:pathData="M0,79L108,79"
 99 |         android:strokeColor="#33FFFFFF"
100 |         android:strokeWidth="0.8" />
101 |     <path
102 |         android:fillColor="#00000000"
103 |         android:pathData="M0,89L108,89"
104 |         android:strokeColor="#33FFFFFF"
105 |         android:strokeWidth="0.8" />
106 |     <path
107 |         android:fillColor="#00000000"
108 |         android:pathData="M0,99L108,99"
109 |         android:strokeColor="#33FFFFFF"
110 |         android:strokeWidth="0.8" />
111 |     <path
112 |         android:fillColor="#00000000"
113 |         android:pathData="M19,29L89,29"
114 |         android:strokeColor="#33FFFFFF"
115 |         android:strokeWidth="0.8" />
116 |     <path
117 |         android:fillColor="#00000000"
118 |         android:pathData="M19,39L89,39"
119 |         android:strokeColor="#33FFFFFF"
120 |         android:strokeWidth="0.8" />
121 |     <path
122 |         android:fillColor="#00000000"
123 |         android:pathData="M19,49L89,49"
124 |         android:strokeColor="#33FFFFFF"
125 |         android:strokeWidth="0.8" />
126 |     <path
127 |         android:fillColor="#00000000"
128 |         android:pathData="M19,59L89,59"
129 |         android:strokeColor="#33FFFFFF"
130 |         android:strokeWidth="0.8" />
131 |     <path
132 |         android:fillColor="#00000000"
133 |         android:pathData="M19,69L89,69"
134 |         android:strokeColor="#33FFFFFF"
135 |         android:strokeWidth="0.8" />
136 |     <path
137 |         android:fillColor="#00000000"
138 |         android:pathData="M19,79L89,79"
139 |         android:strokeColor="#33FFFFFF"
140 |         android:strokeWidth="0.8" />
141 |     <path
142 |         android:fillColor="#00000000"
143 |         android:pathData="M29,19L29,89"
144 |         android:strokeColor="#33FFFFFF"
145 |         android:strokeWidth="0.8" />
146 |     <path
147 |         android:fillColor="#00000000"
148 |         android:pathData="M39,19L39,89"
149 |         android:strokeColor="#33FFFFFF"
150 |         android:strokeWidth="0.8" />
151 |     <path
152 |         android:fillColor="#00000000"
153 |         android:pathData="M49,19L49,89"
154 |         android:strokeColor="#33FFFFFF"
155 |         android:strokeWidth="0.8" />
156 |     <path
157 |         android:fillColor="#00000000"
158 |         android:pathData="M59,19L59,89"
159 |         android:strokeColor="#33FFFFFF"
160 |         android:strokeWidth="0.8" />
161 |     <path
162 |         android:fillColor="#00000000"
163 |         android:pathData="M69,19L69,89"
164 |         android:strokeColor="#33FFFFFF"
165 |         android:strokeWidth="0.8" />
166 |     <path
167 |         android:fillColor="#00000000"
168 |         android:pathData="M79,19L79,89"
169 |         android:strokeColor="#33FFFFFF"
170 |         android:strokeWidth="0.8" />
171 | </vector>
172 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout-land/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:background="@android:color/black"
 6 |     android:orientation="horizontal">
 7 | 
 8 |     <FrameLayout
 9 |         android:id="@+id/fl_main_preview_container"
10 |         android:layout_width="0dp"
11 |         android:layout_height="match_parent"
12 |         android:layout_weight="1" />
13 | 
14 |     <RelativeLayout
15 |         android:layout_width="wrap_content"
16 |         android:layout_height="match_parent"
17 |         android:background="@android:color/darker_gray">
18 | 
19 |         <Button
20 |             android:id="@+id/btn_main_settings"
21 |             android:layout_width="wrap_content"
22 |             android:layout_height="wrap_content"
23 |             android:text="设置" />
24 | 
25 |         <LinearLayout
26 |             android:layout_width="wrap_content"
27 |             android:layout_height="wrap_content"
28 |             android:layout_centerInParent="true"
29 |             android:orientation="vertical">
30 | 
31 |             <Button
32 |                 android:id="@+id/btn_main_take_picture"
33 |                 android:layout_width="wrap_content"
34 |                 android:layout_height="wrap_content"
35 |                 android:text="拍照" />
36 | 
37 |             <Button
38 |                 android:id="@+id/btn_main_capture_video"
39 |                 android:layout_width="wrap_content"
40 |                 android:layout_height="wrap_content"
41 |                 android:text="录像" />
42 |         </LinearLayout>
43 | 
44 |         <ImageView
45 |             android:id="@+id/iv_main_preview"
46 |             android:layout_width="60dp"
47 |             android:layout_height="60dp"
48 |             android:layout_marginBottom="4dp"
49 |             android:layout_alignParentBottom="true"
50 |             android:layout_centerHorizontal="true"
51 |             android:background="@android:color/black" />
52 | 
53 |         <Button
54 |             android:id="@+id/btn_main_study"
55 |             android:layout_width="wrap_content"
56 |             android:layout_height="wrap_content"
57 |             android:layout_marginBottom="4dp"
58 |             android:layout_above="@id/iv_main_preview"
59 |             android:text="Study" />
60 |     </RelativeLayout>
61 | </LinearLayout>


--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:background="@android:color/black"
 6 |     android:orientation="vertical">
 7 | 
 8 |     <FrameLayout
 9 |         android:id="@+id/fl_main_preview_container"
10 |         android:layout_width="match_parent"
11 |         android:layout_height="0dp"
12 |         android:layout_weight="1" />
13 | 
14 |     <RelativeLayout
15 |         android:layout_width="match_parent"
16 |         android:layout_height="80dp"
17 |         android:background="@android:color/darker_gray">
18 | 
19 |         <ImageView
20 |             android:id="@+id/iv_main_preview"
21 |             android:layout_width="60dp"
22 |             android:layout_height="60dp"
23 |             android:layout_marginStart="4dp"
24 |             android:layout_centerVertical="true"
25 |             android:background="@android:color/black" />
26 | 
27 |         <LinearLayout
28 |             android:layout_width="wrap_content"
29 |             android:layout_height="wrap_content"
30 |             android:layout_centerInParent="true"
31 |             android:orientation="horizontal">
32 | 
33 |             <Button
34 |                 android:id="@+id/btn_main_take_picture"
35 |                 android:layout_width="wrap_content"
36 |                 android:layout_height="wrap_content"
37 |                 android:text="拍照" />
38 | 
39 |             <Button
40 |                 android:id="@+id/btn_main_capture_video"
41 |                 android:layout_width="wrap_content"
42 |                 android:layout_height="wrap_content"
43 |                 android:text="录像" />
44 |         </LinearLayout>
45 | 
46 |         <Button
47 |             android:id="@+id/btn_main_study"
48 |             android:layout_width="wrap_content"
49 |             android:layout_height="wrap_content"
50 |             android:layout_marginEnd="4dp"
51 |             android:layout_alignParentEnd="true"
52 |             android:text="Study" />
53 | 
54 |         <Button
55 |             android:id="@+id/btn_main_settings"
56 |             android:layout_width="wrap_content"
57 |             android:layout_height="wrap_content"
58 |             android:layout_marginEnd="4dp"
59 |             android:layout_alignParentBottom="true"
60 |             android:layout_alignParentEnd="true"
61 |             android:text="设置" />
62 |     </RelativeLayout>
63 | </LinearLayout>


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/app/src/main/res/layout/activity_study.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <FrameLayout
3 |     xmlns:android="http://schemas.android.com/apk/res/android"
4 |     android:id="@+id/fl_study_container"
5 |     android:layout_width="match_parent"
6 |     android:layout_height="match_parent" />


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>


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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-hdpi/ic_launcher.png


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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-hdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-mdpi/ic_launcher.png


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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-mdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png


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/app/src/main/res/values/arrays.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <string-array name="pref_jpegQuality">
 4 |         <item>100</item>
 5 |         <item>90</item>
 6 |         <item>80</item>
 7 |         <item>70</item>
 8 |         <item>60</item>
 9 |         <item>50</item>
10 |     </string-array>
11 | 
12 |     <string-array name="grade_key">
13 |         <item>优</item>
14 |         <item>良</item>
15 |         <item>中</item>
16 |         <item>差</item>
17 |     </string-array>
18 | 
19 |     <string-array name="grade_value">
20 |         <item>90</item>
21 |         <item>80</item>
22 |         <item>70</item>
23 |         <item>60</item>
24 |     </string-array>
25 | </resources>


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/app/src/main/res/values/colors.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <color name="colorPrimary">#3F51B5</color>
4 |     <color name="colorPrimaryDark">#303F9F</color>
5 |     <color name="colorAccent">#FF4081</color>
6 | </resources>
7 | 


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/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 | <resources>
2 |     <string name="app_name">BGACamera</string>
3 | </resources>
4 | 


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/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources xmlns:tools="http://schemas.android.com/tools">
 2 | 
 3 |     <!-- Base application theme. -->
 4 |     <style name="AppTheme" parent="@android:style/Theme.Material.Light.NoActionBar" tools:ignore="NewApi">
 5 |         <item name="android:textColor">@android:color/white</item>
 6 |         <item name="android:textColorSecondary">@android:color/white</item>
 7 |     </style>
 8 | 
 9 | </resources>
10 | 


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/app/src/main/res/xml/preferences.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 3 |     <ListPreference
 4 |         android:key="preview_size"
 5 |         android:title="相机预览分辨率" />
 6 |     <ListPreference
 7 |         android:key="picture_size"
 8 |         android:title="照片分辨率" />
 9 |     <ListPreference
10 |         android:key="video_size"
11 |         android:title="视频分辨率" />
12 |     <SwitchPreference
13 |         android:defaultValue="true"
14 |         android:key="gps_data"
15 |         android:title="地理位置" />
16 |     <ListPreference
17 |         android:defaultValue="auto"
18 |         android:key="flash_mode"
19 |         android:title="闪光灯" />
20 |     <ListPreference
21 |         android:key="focus_mode"
22 |         android:title="对焦模式" />
23 |     <ListPreference
24 |         android:defaultValue="auto"
25 |         android:key="white_balance"
26 |         android:title="白平衡" />
27 |     <ListPreference
28 |         android:defaultValue="auto"
29 |         android:key="scene_mode"
30 |         android:title="场景" />
31 |     <ListPreference
32 |         android:defaultValue="0"
33 |         android:key="exposure_compensation"
34 |         android:title="曝光补偿" />
35 |     <ListPreference
36 |         android:defaultValue="100"
37 |         android:entries="@array/pref_jpegQuality"
38 |         android:entryValues="@array/pref_jpegQuality"
39 |         android:key="jpeg_quality"
40 |         android:title="照片品质" />
41 | </PreferenceScreen>


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/app/src/main/res/xml/study_preference_fragment.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:title="我是标题">
 4 |     <PreferenceCategory android:title="分类一">
 5 | 
 6 |         <ListPreference
 7 |             android:defaultValue="60"
 8 |             android:entries="@array/grade_key"
 9 |             android:entryValues="@array/grade_value"
10 |             android:key="one_one"
11 |             android:title="ONE_ONE" />
12 | 
13 |         <SwitchPreference
14 |             android:defaultValue="true"
15 |             android:key="one_two"
16 |             android:summary="状态"
17 |             android:summaryOff="当前为关闭状态"
18 |             android:summaryOn="当前为开启状态"
19 |             android:title="ONE_TWO" />
20 | 
21 |         <ListPreference
22 |             android:defaultValue="70"
23 |             android:dependency="one_two"
24 |             android:dialogTitle="对话框标题"
25 |             android:entries="@array/grade_key"
26 |             android:entryValues="@array/grade_value"
27 |             android:key="one_three"
28 |             android:summary="ONE_TWO 开启时该项才能点击"
29 |             android:title="ONE_THREE" />
30 |     </PreferenceCategory>
31 |     <PreferenceCategory android:title="分类二">
32 |         <ListPreference
33 |             android:defaultValue="80"
34 |             android:entries="@array/grade_key"
35 |             android:entryValues="@array/grade_value"
36 |             android:key="two_one"
37 |             android:title="TWO_ONE" />
38 | 
39 |         <SwitchPreference
40 |             android:defaultValue="true"
41 |             android:key="two_two"
42 |             android:title="TWO_TWO" />
43 | 
44 |         <ListPreference
45 |             android:defaultValue="90"
46 |             android:entries="@array/grade_key"
47 |             android:entryValues="@array/grade_value"
48 |             android:key="two_three"
49 |             android:title="TWO_THREE" />
50 |     </PreferenceCategory>
51 | </PreferenceScreen>


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/build.gradle.kts:
--------------------------------------------------------------------------------
 1 | buildscript {
 2 |     val kotlinVersion by extra { "1.2.71" }
 3 | 
 4 |     repositories {
 5 |         google()
 6 |         jcenter()
 7 |     }
 8 |     dependencies {
 9 |         classpath("com.android.tools.build:gradle:3.2.0")
10 |         classpath(kotlin("gradle-plugin", version = kotlinVersion))
11 |     }
12 | }
13 | 
14 | allprojects {
15 |     repositories {
16 |         google()
17 |         jcenter()
18 |     }
19 | }
20 | 
21 | task("clean", Delete::class) {
22 |     delete(rootProject.buildDir)
23 | }
24 | 


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/gradle.properties:
--------------------------------------------------------------------------------
1 | ANDROID_BUILD_MIN_SDK_VERSION=19
2 | ANDROID_BUILD_TARGET_SDK_VERSION=28
3 | ANDROID_BUILD_SDK_VERSION=28
4 | 
5 | VERSION_NAME=1.0.0
6 | VERSION_CODE=100


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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/bingoogolapple/BGACamera-Android/23873c64de42fcb87d4bc751decb01c559578b29/gradle/wrapper/gradle-wrapper.jar


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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Thu Jun 14 00:14:58 CST 2018
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
7 | 


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/gradlew:
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  1 | #!/usr/bin/env bash
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 10 | DEFAULT_JVM_OPTS=""
 11 | 
 12 | APP_NAME="Gradle"
 13 | APP_BASE_NAME=`basename "$0"`
 14 | 
 15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 16 | MAX_FD="maximum"
 17 | 
 18 | warn ( ) {
 19 |     echo "$*"
 20 | }
 21 | 
 22 | die ( ) {
 23 |     echo
 24 |     echo "$*"
 25 |     echo
 26 |     exit 1
 27 | }
 28 | 
 29 | # OS specific support (must be 'true' or 'false').
 30 | cygwin=false
 31 | msys=false
 32 | darwin=false
 33 | case "`uname`" in
 34 |   CYGWIN* )
 35 |     cygwin=true
 36 |     ;;
 37 |   Darwin* )
 38 |     darwin=true
 39 |     ;;
 40 |   MINGW* )
 41 |     msys=true
 42 |     ;;
 43 | esac
 44 | 
 45 | # Attempt to set APP_HOME
 46 | # Resolve links: $0 may be a link
 47 | PRG="$0"
 48 | # Need this for relative symlinks.
 49 | while [ -h "$PRG" ] ; do
 50 |     ls=`ls -ld "$PRG"`
 51 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 52 |     if expr "$link" : '/.*' > /dev/null; then
 53 |         PRG="$link"
 54 |     else
 55 |         PRG=`dirname "$PRG"`"/$link"
 56 |     fi
 57 | done
 58 | SAVED="`pwd`"
 59 | cd "`dirname \"$PRG\"`/" >/dev/null
 60 | APP_HOME="`pwd -P`"
 61 | cd "$SAVED" >/dev/null
 62 | 
 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 64 | 
 65 | # Determine the Java command to use to start the JVM.
 66 | if [ -n "$JAVA_HOME" ] ; then
 67 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 68 |         # IBM's JDK on AIX uses strange locations for the executables
 69 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 70 |     else
 71 |         JAVACMD="$JAVA_HOME/bin/java"
 72 |     fi
 73 |     if [ ! -x "$JAVACMD" ] ; then
 74 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 75 | 
 76 | Please set the JAVA_HOME variable in your environment to match the
 77 | location of your Java installation."
 78 |     fi
 79 | else
 80 |     JAVACMD="java"
 81 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 82 | 
 83 | Please set the JAVA_HOME variable in your environment to match the
 84 | location of your Java installation."
 85 | fi
 86 | 
 87 | # Increase the maximum file descriptors if we can.
 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
 89 |     MAX_FD_LIMIT=`ulimit -H -n`
 90 |     if [ $? -eq 0 ] ; then
 91 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 92 |             MAX_FD="$MAX_FD_LIMIT"
 93 |         fi
 94 |         ulimit -n $MAX_FD
 95 |         if [ $? -ne 0 ] ; then
 96 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
 97 |         fi
 98 |     else
 99 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 |     fi
101 | fi
102 | 
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 | 
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 |     JAVACMD=`cygpath --unix "$JAVACMD"`
113 | 
114 |     # We build the pattern for arguments to be converted via cygpath
115 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 |     SEP=""
117 |     for dir in $ROOTDIRSRAW ; do
118 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
119 |         SEP="|"
120 |     done
121 |     OURCYGPATTERN="(^($ROOTDIRS))"
122 |     # Add a user-defined pattern to the cygpath arguments
123 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 |     fi
126 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 |     i=0
128 |     for arg in "$@" ; do
129 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
131 | 
132 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
133 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 |         else
135 |             eval `echo args$i`="\"$arg\""
136 |         fi
137 |         i=$((i+1))
138 |     done
139 |     case $i in
140 |         (0) set -- ;;
141 |         (1) set -- "$args0" ;;
142 |         (2) set -- "$args0" "$args1" ;;
143 |         (3) set -- "$args0" "$args1" "$args2" ;;
144 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 |     esac
151 | fi
152 | 
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 |     JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 | 
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 | 


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/gradlew.bat:
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 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 | 
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 | 
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 | 
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 | 
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 | 
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 | 
69 | :execute
70 | @rem Setup the command line
71 | 
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 | 
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 | 
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 | 
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 | 
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 | 
90 | :omega
91 | 


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/settings.gradle.kts:
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1 | include(":app")
2 | 


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