实现了双屏摄像头显示，添加了部分代码
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zxj
@@ -0,0 +1,156 @@
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package com.sw.dualscreen.utils
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import android.content.ContentUris
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import android.content.Context
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import android.net.Uri
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import android.os.Build
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import android.provider.MediaStore
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import androidx.annotation.RequiresApi
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import okhttp3.MediaType.Companion.toMediaTypeOrNull
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import okhttp3.MultipartBody
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import okhttp3.RequestBody.Companion.asRequestBody
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import timber.log.Timber
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import java.io.File
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object FileUtils {
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/**
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* 从Uri获取File
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* example: file:///data/user/0/com.sw.inbound/cache/IMG_17515262353556856678814444882273.jpg
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*/
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private fun getFileFromUri(context: Context, uri: Uri): File? {
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Timber.d("getFileFromUri uri = ${uri.scheme}")
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return when (uri.scheme) {
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"file" -> File(uri.path ?: return null)
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"content" -> {
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try {
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val inputStream = context.contentResolver.openInputStream(uri) ?: return null
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val cacheDir = context.cacheDir
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val file = File.createTempFile(
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"upload_${System.currentTimeMillis()}",
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".jpg",
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cacheDir
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)
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file.outputStream().use { output ->
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inputStream.copyTo(output)
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}
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file
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} catch (e: Exception) {
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Timber.e(e)
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null
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}
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}
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else -> null
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}
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}
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/**
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* 通过uri生成http请求体
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*/
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fun genRequestPart(context: Context, imageUri: Uri): MultipartBody.Part? {
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Timber.d("genRequestPart imageUri = $imageUri")
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// 1. 从Uri获取文件
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val file = getFileFromUri(context, imageUri)
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if (file == null) {
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Timber.e("getFileFromUri file is null")
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return null
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}
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// 2. 创建请求体
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val requestFile = file
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.asRequestBody("application/octet-stream".toMediaTypeOrNull())
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val imagePart = MultipartBody.Part.createFormData(
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"file",
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file.name,
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requestFile
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)
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return imagePart
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}
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/**
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* 通过Uri删除文件
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* @param context 上下文
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* @param uri 文件Uri
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* @return Boolean 是否删除成功
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*/
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fun deleteFileWithUri(context: Context, uri: Uri): Boolean {
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Timber.d("deleteFileWithUri uri = ${uri.scheme}")
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return when {
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// 1. 处理 content:// 类型的Uri (MediaStore)
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uri.scheme.equals("content", ignoreCase = true) -> {
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deleteContentUriFile(context, uri)
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}
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// 2. 处理 file:// 类型的Uri
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uri.scheme.equals("file", ignoreCase = true) -> {
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deleteFileUriFile(uri)
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}
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// 3. 其他情况尝试直接解析路径
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else -> {
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deleteFileFromPath(uri.path ?: return false)
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}
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}
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}
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// 删除Content Uri文件
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private fun deleteContentUriFile(context: Context, uri: Uri): Boolean {
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Timber.d("deleteContentUriFile uri = ${uri.scheme}")
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return try {
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context.contentResolver.delete(uri, null, null) > 0
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} catch (e: SecurityException) {
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// Android 10+需要特殊处理
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
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deleteMediaStoreFile(context, uri)
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} else {
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false
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}
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} catch (e: Exception) {
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Timber.e(e)
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false
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}
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}
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// Android 10+删除MediaStore文件
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@RequiresApi(Build.VERSION_CODES.Q)
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private fun deleteMediaStoreFile(context: Context, uri: Uri): Boolean {
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Timber.d("deleteMediaStoreFile uri = ${uri.scheme}")
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val contentResolver = context.contentResolver
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val projection = arrayOf(MediaStore.MediaColumns._ID)
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return try {
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contentResolver.query(uri, projection, null, null, null)?.use { cursor ->
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if (cursor.moveToFirst()) {
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val id =
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cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns._ID))
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val contentUri = ContentUris.withAppendedId(uri, id)
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contentResolver.delete(contentUri, null, null) > 0
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} else {
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false
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}
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} ?: false
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} catch (e: Exception) {
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Timber.e(e)
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false
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}
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}
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// 删除File Uri文件
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private fun deleteFileUriFile(uri: Uri): Boolean {
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Timber.d("deleteFileUriFile uri = $uri")
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return try {
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File(uri.path ?: return false).delete()
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} catch (e: Exception) {
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Timber.e(e)
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false
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}
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}
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// 直接通过路径删除文件
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private fun deleteFileFromPath(path: String): Boolean {
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Timber.d("deleteFileFromPath path = $path")
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return try {
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File(path).delete()
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} catch (e: Exception) {
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Timber.e(e)
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false
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}
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}
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}
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@@ -0,0 +1,123 @@
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package com.sw.dualscreen.utils
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import com.google.gson.Gson
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import com.google.gson.GsonBuilder
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import com.google.gson.reflect.TypeToken
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import java.lang.reflect.Type
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object GsonUtils {
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// 默认的 Gson 实例
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private val defaultGson: Gson by lazy {
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GsonBuilder()
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.setDateFormat("yyyy-MM-dd HH:mm:ss") // 设置日期格式
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// .disableHtmlEscaping() // 禁止转义HTML标签
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.create()
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}
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/**
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* 获取默认配置的 Gson 实例
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*/
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fun getGson(): Gson = defaultGson
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/**
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* 将对象转换为 JSON 字符串
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* @param obj 要转换的对象
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* @return JSON 字符串
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*/
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fun toJson(obj: Any?): String {
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return if (obj == null) "" else defaultGson.toJson(obj)
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}
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/**
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* 将 JSON 字符串转换为对象
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* @param json JSON 字符串
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* @param clazz 目标类
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* @return 转换后的对象
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*/
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fun <T> fromJson(json: String?, clazz: Class<T>): T? {
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if (json.isNullOrEmpty()) {
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return null
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}
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return try {
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defaultGson.fromJson(json, clazz)
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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/**
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* 将 JSON 字符串转换为对象 (支持泛型)
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* @param json JSON 字符串
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* @param type 类型令牌，用于获取泛型类型
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* @return 转换后的对象
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*/
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fun <T> fromJson(json: String?, type: Type): T? {
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if (json.isNullOrEmpty()) {
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return null
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}
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return try {
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defaultGson.fromJson(json, type)
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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/**
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* 将 JSON 字符串转换为 List 对象
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* @param json JSON 字符串
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* @param clazz List 中的元素类型
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* @return 转换后的 List 对象
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*/
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fun <T> fromJsonList(json: String?, clazz: Class<T>): List<T>? {
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if (json.isNullOrEmpty()) {
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return null
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}
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return try {
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val type = TypeToken.getParameterized(List::class.java, clazz).type
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defaultGson.fromJson<List<T>>(json, type)
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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/**
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* 将 JSON 字符串转换为 Map 对象
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* @param json JSON 字符串
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* @param keyClazz Map 的 key 类型
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* @param valueClazz Map 的 value 类型
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* @return 转换后的 Map 对象
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*/
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fun <K, V> fromJsonMap(
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json: String?,
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keyClazz: Class<K>,
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valueClazz: Class<V>
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): Map<K, V>? {
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if (json.isNullOrEmpty()) {
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return null
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}
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return try {
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val type = TypeToken.getParameterized(Map::class.java, keyClazz, valueClazz).type
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defaultGson.fromJson<Map<K, V>>(json, type)
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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/**
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* 将对象转换为另一种类型的对象
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* @param obj 源对象
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* @param clazz 目标类型
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* @return 转换后的对象
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*/
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fun <T> convert(obj: Any?, clazz: Class<T>): T? {
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if (obj == null) {
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return null
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}
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return fromJson(toJson(obj), clazz)
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}
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}
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@@ -0,0 +1,111 @@
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package com.sw.inbound.utils
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import android.content.Context
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import androidx.core.content.edit
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import com.sw.plate.App
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.flow.map
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import kotlin.properties.ReadWriteProperty
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import kotlin.reflect.KProperty
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class SPUtil private constructor(context: Context, private val spName: String) {
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companion object {
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@Volatile
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private var instance: SPUtil? = null
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fun getInstance(
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context: Context = App.getContext(),
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spName: String = "default_sp"
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): SPUtil {
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return instance ?: synchronized(this) {
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instance ?: SPUtil(context.applicationContext, spName).also { instance = it }
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}
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}
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}
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private val sharedPreferences by lazy {
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context.getSharedPreferences(spName, Context.MODE_PRIVATE)
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}
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// 基础存储方法
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fun put(key: String, value: Any?) {
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when (value) {
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null -> remove(key) // 存入null视为删除
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is String -> sharedPreferences.edit { putString(key, value) }
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is Int -> sharedPreferences.edit { putInt(key, value) }
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is Long -> sharedPreferences.edit { putLong(key, value) }
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is Float -> sharedPreferences.edit { putFloat(key, value) }
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is Boolean -> sharedPreferences.edit { putBoolean(key, value) }
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is Set<*> -> sharedPreferences.edit { putStringSet(key, value as Set<String>) }
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else -> throw IllegalArgumentException("Unsupported type: ${value.javaClass.name}")
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}
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notifyDataChanged(key)
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}
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@Suppress("UNCHECKED_CAST")
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fun <T> get(key: String, defaultValue: T? = null): T? {
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return when (defaultValue) {
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is String -> sharedPreferences.getString(key, defaultValue) as T
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is Int -> sharedPreferences.getInt(key, defaultValue) as T
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is Long -> sharedPreferences.getLong(key, defaultValue) as T
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is Float -> sharedPreferences.getFloat(key, defaultValue) as T
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is Boolean -> sharedPreferences.getBoolean(key, defaultValue) as T
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is Set<*> -> sharedPreferences.getStringSet(key, defaultValue as Set<String>) as T
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null -> when {
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sharedPreferences.contains(key) -> get(key, "") as? T // 尝试作为String获取
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else -> null
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}
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else -> throw IllegalArgumentException("Unsupported type: ${defaultValue.javaClass.name}")
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}
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}
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fun remove(key: String) {
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if (sharedPreferences.contains(key)) {
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sharedPreferences.edit { remove(key) }
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notifyDataChanged(key)
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}
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}
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fun clear() {
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sharedPreferences.edit { clear() }
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notifyDataChanged(null)
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}
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fun contains(key: String): Boolean {
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return sharedPreferences.contains(key)
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}
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// 监听变化
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private val dataChangeFlow = MutableStateFlow(0)
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private fun notifyDataChanged(key: String?) {
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dataChangeFlow.value++
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}
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fun observeKey(key: String): Flow<Any?> {
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return dataChangeFlow.map { get(key) }
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}
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// 属性委托支持
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fun int(key: String, default: Int = 0) = SpProperty(key, default)
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fun long(key: String, default: Long = 0L) = SpProperty(key, default)
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fun float(key: String, default: Float = 0f) = SpProperty(key, default)
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fun boolean(key: String, default: Boolean = false) = SpProperty(key, default)
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fun string(key: String, default: String = "") = SpProperty(key, default)
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fun stringSet(key: String, default: Set<String> = emptySet()) = SpProperty(key, default)
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inner class SpProperty<T>(private val key: String, private val defaultValue: T) :
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ReadWriteProperty<Any?, T> {
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override fun getValue(thisRef: Any?, property: KProperty<*>): T {
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return get(key, defaultValue) ?: defaultValue
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}
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override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
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put(key, value)
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}
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}
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}
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Reference in New Issue
Block a user