Fix compilation errors: remove duplicate methods, add missing imports, fix location manager
This commit is contained in:
xiajiid
@@ -55,348 +55,14 @@ class CameraActivity : AppCompatActivity() {
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private lateinit var photoPreviewLayout: LinearLayout
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private lateinit var photoPreviewLayout: LinearLayout
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private var imageCapture: ImageCapture? = null
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private var imageCapture: ImageCapture? = null
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private lateinit var cameraExecutor: ExecutorService
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private lateinit var cameraExecutor: ExecutorService
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private var locationManagerHelper: LocationManagerHelper? = null
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private var currentLocation: Location? = null
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// 存储拍摄的图片URI
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// 存储拍摄的图片URI
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private val capturedImageUris = mutableListOf<Uri>()
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private val capturedImageUris = mutableListOf<Uri>()
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// 图片合成器
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// 图片合成器
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private val compositor = ImageCompositor()
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private val compositor = ImageCompositor()
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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// 初始化视图
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viewFinder = findViewById(R.id.viewFinder)
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captureButton = findViewById(R.id.captureButton)
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settingsButton = findViewById(R.id.settingsButton)
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photoPreviewLayout = findViewById(R.id.photoPreviewLayout)
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// 请求权限
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if (allPermissionsGranted()) {
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startCamera()
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} else {
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ActivityCompat.requestPermissions(
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this, REQUIRED_PERMISSIONS, REQUEST_CODE_PERMISSIONS
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)
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}
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// 设置点击监听器
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captureButton.setOnClickListener { takePhoto() }
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settingsButton.setOnClickListener { openSettings() }
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// 初始化线程池
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cameraExecutor = Executors.newSingleThreadExecutor()
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}
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private fun allPermissionsGranted() = REQUIRED_PERMISSIONS.all {
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ContextCompat.checkSelfPermission(baseContext, it) == PackageManager.PERMISSION_GRANTED
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}
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private fun startCamera() {
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val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
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cameraProviderFuture.addListener({
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val cameraProvider = cameraProviderFuture.get()
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val preview = Preview.Builder()
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.build()
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.also {
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it.setSurfaceProvider(viewFinder.surfaceProvider)
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}
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imageCapture = ImageCapture.Builder()
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.setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
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.build()
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val cameraSelector = CameraSelector.DEFAULT_BACK_CAMERA
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try {
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cameraProvider.unbindAll()
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cameraProvider.bindToLifecycle(
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this, cameraSelector, preview, imageCapture
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)
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} catch (exc: Exception) {
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Log.e(TAG, "相机绑定失败", exc)
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}
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}, ContextCompat.getMainExecutor(this))
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}
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private fun takePhoto() {
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val imageCapture = imageCapture ?: return
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val outputFileOptions = ImageCapture.OutputFileOptions.Builder(
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createImageUri()
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).build()
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imageCapture.takePicture(
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outputFileOptions,
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ContextCompat.getMainExecutor(this),
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object : ImageCapture.OnImageSavedCallback {
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override fun onError(exception: ImageCaptureException) {
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Log.e(TAG, "照片拍摄失败: ${exception.message}", exception)
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Toast.makeText(
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baseContext,
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"照片拍摄失败: ${exception.message}",
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Toast.LENGTH_SHORT
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).show()
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}
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override fun onImageSaved(output: ImageCapture.OutputFileResults) {
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// 获取保存的URI
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val savedUri = output.savedUri ?: return
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// 添加水印到已保存的照片
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addWatermarkToImage(savedUri)
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// 添加到捕获的图片列表
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capturedImageUris.add(savedUri)
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// 更新预览
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updatePhotoPreviews()
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Toast.makeText(
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baseContext,
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"照片已保存",
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Toast.LENGTH_SHORT
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).show()
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// 刷新相册
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refreshGallery(savedUri)
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}
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}
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)
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}
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private fun createImageUri(): Uri {
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val contentValues = ContentValues().apply {
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put(MediaStore.Images.Media.DISPLAY_NAME, "巡检_${System.currentTimeMillis()}.jpg")
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put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
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if (Build.VERSION.SDK_INT > Build.VERSION_CODES.P) {
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put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis())
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}
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}
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return contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
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?: throw IOException("无法创建图片URI")
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}
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private fun addWatermarkToImage(imageUri: Uri) {
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try {
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val inputStream = contentResolver.openInputStream(imageUri)
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val originalBitmap = BitmapFactory.decodeStream(inputStream)
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inputStream?.close()
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val watermarkedBitmap = addWatermark(originalBitmap)
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// 将带水印的图片保存回原URI
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val outputStream = contentResolver.openOutputStream(imageUri, "rwt") // truncate and write
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watermarkedBitmap.compress(Bitmap.CompressFormat.JPEG, 95, outputStream)
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outputStream?.close()
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// 回收位图以释放内存
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if (watermarkedBitmap != originalBitmap) {
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originalBitmap.recycle()
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}
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watermarkedBitmap.recycle()
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} catch (e: Exception) {
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Log.e(TAG, "添加水印失败: ${e.message}")
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}
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}
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private fun addWatermark(bitmap: Bitmap): Bitmap {
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val watermarkedBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true)
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val canvas = Canvas(watermarkedBitmap)
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val paint = Paint().apply {
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color = Color.WHITE
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textSize = 48f
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typeface = Typeface.DEFAULT_BOLD
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textAlign = Paint.Align.LEFT
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}
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// 绘制时间水印
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val timestamp = formatDate(System.currentTimeMillis())
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canvas.drawText(timestamp, 50f, watermarkedBitmap.height - 100f, paint)
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// 绘制位置水印
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getCurrentLocation()?.let { location ->
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val address = getAddressFromLocation(location.latitude, location.longitude)
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canvas.drawText(address, 50f, watermarkedBitmap.height - 50f, paint)
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}
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return watermarkedBitmap
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}
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private fun updatePhotoPreviews() {
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// 清空当前预览
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photoPreviewLayout.removeAllViews()
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// 限制最多显示4张预览图
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val displayCount = minOf(capturedImageUris.size, 4)
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for (i in 0 until displayCount) {
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val imageView = ImageView(this)
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val params = LinearLayout.LayoutParams(
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200, 200
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).apply {
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setMargins(8, 8, 8, 8)
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}
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imageView.layoutParams = params
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imageView.scaleType = ImageView.ScaleType.CENTER_CROP
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// 加载并设置图片
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val uri = capturedImageUris[capturedImageUris.size - displayCount + i] // 显示最新的几张
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imageView.setImageURI(uri)
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// 添加点击事件以查看大图
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imageView.setOnClickListener {
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// 可以在这里实现查看大图的功能
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}
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photoPreviewLayout.addView(imageView)
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}
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// 如果已有4张图片，添加合成按钮
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if (capturedImageUris.size >= 4) {
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addComposeButton()
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}
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}
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private fun addComposeButton() {
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// 添加合成按钮
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val composeButton = Button(this)
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composeButton.text = "合成图片"
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composeButton.setBackgroundColor(ContextCompat.getColor(this, R.color.purple_200))
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composeButton.setTextColor(Color.WHITE)
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val params = LinearLayout.LayoutParams(
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LinearLayout.LayoutParams.WRAP_CONTENT,
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LinearLayout.LayoutParams.WRAP_CONTENT
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).apply {
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setMargins(8, 8, 8, 8)
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gravity = android.view.Gravity.CENTER_HORIZONTAL
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}
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composeButton.layoutParams = params
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composeButton.setOnClickListener {
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composeLastFourImages()
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}
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photoPreviewLayout.addView(composeButton)
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}
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private fun composeLastFourImages() {
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// 获取最近的4张图片
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val recentUris = if (capturedImageUris.size >= 4) {
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capturedImageUris.takeLast(4)
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} else {
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capturedImageUris
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}
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// 将URI转换为Bitmap
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val bitmaps = mutableListOf<Bitmap>()
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for (uri in recentUris) {
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try {
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val inputStream = contentResolver.openInputStream(uri)
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val bitmap = BitmapFactory.decodeStream(inputStream)
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inputStream?.close()
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bitmaps.add(bitmap)
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} catch (e: Exception) {
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Log.e(TAG, "加载图片失败: ${e.message}")
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}
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}
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if (bitmaps.isEmpty()) {
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Toast.makeText(this, "没有图片可合成", Toast.LENGTH_SHORT).show()
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return
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}
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// 合成图片
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val composedBitmap = compositor.composeImagesToGrid(bitmaps, 2000, 2000) // 目标尺寸2000x2000
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// 添加标题和内容
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val finalBitmap = compositor.addTextOverlay(
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composedBitmap,
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"巡检报告",
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"这是巡检内容的详细描述"
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)
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// 保存合成后的图片
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saveCompositedImage(finalBitmap)
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// 回收位图
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for (bitmap in bitmaps) {
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if (bitmap != finalBitmap) {
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bitmap.recycle()
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}
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}
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if (finalBitmap != composedBitmap) {
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composedBitmap.recycle()
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}
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}
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private fun saveCompositedImage(bitmap: Bitmap) {
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try {
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val fileName = compositor.generateFileName()
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val contentValues = ContentValues().apply {
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put(MediaStore.Images.Media.DISPLAY_NAME, fileName)
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put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
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if (Build.VERSION.SDK_INT > Build.VERSION_CODES.P) {
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put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis())
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}
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}
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val uri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
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?: throw IOException("无法创建图片URI")
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val outputStream = contentResolver.openOutputStream(uri)
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bitmap.compress(Bitmap.CompressFormat.JPEG, 95, outputStream)
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outputStream?.close()
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Toast.makeText(this, "合成图片已保存", Toast.LENGTH_SHORT).show()
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// 刷新相册
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refreshGallery(uri)
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} catch (e: Exception) {
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Log.e(TAG, "保存合成图片失败: ${e.message}")
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Toast.makeText(this, "保存合成图片失败", Toast.LENGTH_SHORT).show()
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}
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}
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private fun refreshGallery(uri: Uri) {
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// 通知相册更新
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val contentValues = ContentValues().apply {
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put(MediaStore.Images.Media.IS_PENDING, 0)
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}
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contentResolver.update(uri, contentValues, null, null)
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}
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// 将时间戳转换为指定格式的日期时间字符串
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fun formatDate(timestamp: Long): String {
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val sdf = SimpleDateFormat("yyyy年-MM月-dd日 HH:mm:ss", Locale.getDefault())
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return sdf.format(Date(timestamp))
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}
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// 使用Geocoder将经纬度转换为地址
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private fun getAddressFromLocation(latitude: Double, longitude: Double): String? {
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return try {
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val geocoder = Geocoder(this, Locale.getDefault())
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val addresses = geocoder.getFromLocation(latitude, longitude, 1)
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if (addresses?.isEmpty() == false) {
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val address = addresses[0]
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val addressLine = address.getAddressLine(0)
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addressLine ?: "${latitude}, ${longitude}"
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} else {
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"${latitude}, ${longitude}"
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}
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} catch (e: Exception) {
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Log.e(TAG, "无法解析地址: ${e.message}")
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"${latitude}, ${longitude}"
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}
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}
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private var locationManagerHelper: LocationManagerHelper? = null
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private var currentLocation: Location? = null
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override fun onCreate(savedInstanceState: Bundle?) {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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setContentView(R.layout.activity_main)
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@@ -451,6 +117,241 @@ class CameraActivity : AppCompatActivity() {
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cameraExecutor.shutdown()
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cameraExecutor.shutdown()
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}
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}
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private fun allPermissionsGranted() = REQUIRED_PERMISSIONS.all {
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ContextCompat.checkSelfPermission(baseContext, it) == PackageManager.PERMISSION_GRANTED
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}
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private fun startCamera() {
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val cameraProviderFuture = ProcessCameraProvider.getInstance(this)
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cameraProviderFuture.addListener({
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val cameraProvider = cameraProviderFuture.get()
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// 预览
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val preview = Preview.Builder()
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.build()
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.also {
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it.setSurfaceProvider(viewFinder.surfaceProvider)
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}
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imageCapture = ImageCapture.Builder()
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.setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
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.build()
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val cameraSelector = CameraSelector.DEFAULT_BACK_CAMERA
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try {
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cameraProvider.unbindAll()
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cameraProvider.bindToLifecycle(
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||||||
|
this, cameraSelector, preview, imageCapture
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||||||
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)
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} catch (e: Exception) {
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||||||
|
Log.e(TAG, "相机绑定失败", e)
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||||||
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}
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}, ContextCompat.getMainExecutor(this))
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}
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|
|
||||||
|
@SuppressLint("MissingPermission")
|
||||||
|
private fun takePhoto() {
|
||||||
|
val imageCapture = this.imageCapture ?: return
|
||||||
|
|
||||||
|
val outputOptions = createOutputFileOptions()
|
||||||
|
|
||||||
|
imageCapture.takePicture(
|
||||||
|
outputOptions,
|
||||||
|
ContextCompat.getMainExecutor(this),
|
||||||
|
object : ImageCapture.OnImageSavedCallback {
|
||||||
|
override fun onImageSaved(outputFileResults: ImageCapture.OutputFileResults) {
|
||||||
|
val savedUri = outputFileResults.savedUri ?: return
|
||||||
|
capturedImageUris.add(savedUri)
|
||||||
|
showPhotoPreview(savedUri)
|
||||||
|
|
||||||
|
// 如果已经有4张照片，显示合成按钮
|
||||||
|
if (capturedImageUris.size >= 4) {
|
||||||
|
showComposeButton()
|
||||||
|
}
|
||||||
|
|
||||||
|
val msg = "照片已保存: ${savedUri.lastPathSegment}"
|
||||||
|
Toast.makeText(baseContext, msg, Toast.LENGTH_SHORT).show()
|
||||||
|
Log.d(TAG, msg)
|
||||||
|
}
|
||||||
|
|
||||||
|
override fun onError(exception: ImageCaptureException) {
|
||||||
|
Log.e(TAG, "拍照失败: ${exception.message}", exception)
|
||||||
|
Toast.makeText(baseContext, "拍照失败", Toast.LENGTH_SHORT).show()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun createOutputFileOptions(): ImageCapture.OutputFileOptions {
|
||||||
|
val timestamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(Date())
|
||||||
|
|
||||||
|
val contentValues = ContentValues().apply {
|
||||||
|
put(MediaStore.MediaColumns.DISPLAY_NAME, "巡检_$timestamp")
|
||||||
|
put(MediaStore.MediaColumns.MIME_TYPE, "image/jpeg")
|
||||||
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
|
||||||
|
put(MediaStore.MediaColumns.RELATIVE_PATH, "Pictures/LogCam")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
val contentResolver = contentResolver
|
||||||
|
val uri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
|
||||||
|
|
||||||
|
return ImageCapture.OutputFileOptions.Builder(contentResolver, uri).build()
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun showPhotoPreview(uri: Uri) {
|
||||||
|
val imageView = ImageView(this)
|
||||||
|
val layoutParams = LinearLayout.LayoutParams(120, 120)
|
||||||
|
layoutParams.marginEnd = 8
|
||||||
|
imageView.layoutParams = layoutParams
|
||||||
|
imageView.scaleType = ImageView.ScaleType.CENTER_CROP
|
||||||
|
|
||||||
|
try {
|
||||||
|
val inputStream = contentResolver.openInputStream(uri)
|
||||||
|
val bitmap = BitmapFactory.decodeStream(inputStream)
|
||||||
|
inputStream?.close()
|
||||||
|
imageView.setImageBitmap(bitmap)
|
||||||
|
} catch (e: IOException) {
|
||||||
|
Log.e(TAG, "预览图片加载失败", e)
|
||||||
|
}
|
||||||
|
|
||||||
|
photoPreviewLayout.addView(imageView)
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun showComposeButton() {
|
||||||
|
// 添加合成按钮到预览区域
|
||||||
|
val composeButton = Button(this)
|
||||||
|
composeButton.text = "合成图片"
|
||||||
|
composeButton.setOnClickListener { composeImages() }
|
||||||
|
|
||||||
|
val layoutParams = LinearLayout.LayoutParams(
|
||||||
|
LinearLayout.LayoutParams.WRAP_CONTENT,
|
||||||
|
LinearLayout.LayoutParams.WRAP_CONTENT
|
||||||
|
)
|
||||||
|
layoutParams.marginStart = 16
|
||||||
|
composeButton.layoutParams = layoutParams
|
||||||
|
|
||||||
|
photoPreviewLayout.addView(composeButton)
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun composeImages() {
|
||||||
|
if (capturedImageUris.size < 4) {
|
||||||
|
Toast.makeText(this, "需要至少4张图片进行合成", Toast.LENGTH_SHORT).show()
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// 获取最近4张图片
|
||||||
|
val recentUris = capturedImageUris.takeLast(4)
|
||||||
|
val bitmaps = mutableListOf<Bitmap>()
|
||||||
|
|
||||||
|
for (uri in recentUris) {
|
||||||
|
try {
|
||||||
|
val inputStream = contentResolver.openInputStream(uri)
|
||||||
|
val bitmap = BitmapFactory.decodeStream(inputStream)
|
||||||
|
inputStream?.close()
|
||||||
|
bitmap?.let { bitmaps.add(it) }
|
||||||
|
} catch (e: IOException) {
|
||||||
|
Log.e(TAG, "加载图片失败: $uri", e)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (bitmaps.size < 4) {
|
||||||
|
Toast.makeText(this, "部分图片加载失败", Toast.LENGTH_SHORT).show()
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// 合成图片
|
||||||
|
val composedBitmap = compositor.composeImages(bitmaps, "巡检报告", "合成时间: ${Date()}")
|
||||||
|
|
||||||
|
// 保存合成图片
|
||||||
|
val timestamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(Date())
|
||||||
|
val contentValues = ContentValues().apply {
|
||||||
|
put(MediaStore.MediaColumns.DISPLAY_NAME, "巡检合成_$timestamp")
|
||||||
|
put(MediaStore.MediaColumns.MIME_TYPE, "image/jpeg")
|
||||||
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
|
||||||
|
put(MediaStore.MediaColumns.RELATIVE_PATH, "Pictures/LogCam")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
val contentResolver = contentResolver
|
||||||
|
val uri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
|
||||||
|
|
||||||
|
if (uri != null) {
|
||||||
|
try {
|
||||||
|
val outputStream: OutputStream? = contentResolver.openOutputStream(uri)
|
||||||
|
if (outputStream != null) {
|
||||||
|
composedBitmap.compress(Bitmap.CompressFormat.JPEG, 90, outputStream)
|
||||||
|
outputStream.close()
|
||||||
|
|
||||||
|
Toast.makeText(this, "图片合成成功", Toast.LENGTH_SHORT).show()
|
||||||
|
}
|
||||||
|
} catch (e: IOException) {
|
||||||
|
Log.e(TAG, "保存合成图片失败", e)
|
||||||
|
Toast.makeText(this, "保存失败", Toast.LENGTH_SHORT).show()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun getAddressFromLocation(location: Location): String {
|
||||||
|
val geocoder = Geocoder(this, Locale.getDefault())
|
||||||
|
|
||||||
|
return try {
|
||||||
|
val addresses = geocoder.getFromLocation(
|
||||||
|
location.latitude,
|
||||||
|
location.longitude,
|
||||||
|
1
|
||||||
|
)
|
||||||
|
|
||||||
|
if (addresses != null && addresses.isNotEmpty()) {
|
||||||
|
val address = addresses[0]
|
||||||
|
"${address.locality}, ${address.subLocality}, ${address.thoroughfare}"
|
||||||
|
} else {
|
||||||
|
"${location.latitude.roundToInt()}, ${location.longitude.roundToInt()}"
|
||||||
|
}
|
||||||
|
} catch (e: Exception) {
|
||||||
|
Log.e(TAG, "无法解析地址: ${e.message}")
|
||||||
|
"${location.latitude.roundToInt()}, ${location.longitude.roundToInt()}"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun getLocationString(): String {
|
||||||
|
val location = getCurrentLocation()
|
||||||
|
return if (location != null) {
|
||||||
|
getAddressFromLocation(location)
|
||||||
|
} else {
|
||||||
|
"未知位置"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private fun addWatermarkToBitmap(originalBitmap: Bitmap): Bitmap {
|
||||||
|
val timestamp = SimpleDateFormat("yyyy年-MM月-dd日 HH:mm:ss", Locale.getDefault()).format(Date())
|
||||||
|
val location = getLocationString()
|
||||||
|
|
||||||
|
val watermarkText = "$timestamp\n$location"
|
||||||
|
|
||||||
|
val mutableBitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true)
|
||||||
|
val canvas = Canvas(mutableBitmap)
|
||||||
|
|
||||||
|
val paint = Paint().apply {
|
||||||
|
color = Color.WHITE
|
||||||
|
textSize = 32f
|
||||||
|
typeface = Typeface.DEFAULT_BOLD
|
||||||
|
setShadowLayer(5f, 0f, 0f, Color.BLACK)
|
||||||
|
}
|
||||||
|
|
||||||
|
val textWidth = paint.measureText(watermarkText)
|
||||||
|
val textHeight = paint.descent() - paint.ascent()
|
||||||
|
|
||||||
|
val x = 20f
|
||||||
|
val y = mutableBitmap.height - textHeight - 20f
|
||||||
|
|
||||||
|
canvas.drawText(watermarkText, x, y, paint)
|
||||||
|
|
||||||
|
return mutableBitmap
|
||||||
|
}
|
||||||
|
|
||||||
private fun openSettings() {
|
private fun openSettings() {
|
||||||
// 打开设置页面
|
// 打开设置页面
|
||||||
val settingsFragment = SettingsFragment()
|
val settingsFragment = SettingsFragment()
|
||||||
@@ -472,9 +373,4 @@ class CameraActivity : AppCompatActivity() {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
override fun onDestroy() {
|
|
||||||
super.onDestroy()
|
|
||||||
cameraExecutor.shutdown()
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
@@ -1,6 +1,8 @@
|
|||||||
package com.example.app
|
package com.example.app
|
||||||
|
|
||||||
import android.graphics.*
|
import android.graphics.*
|
||||||
|
import android.text.StaticLayout
|
||||||
|
import android.text.Layout
|
||||||
import java.io.File
|
import java.io.File
|
||||||
import java.text.SimpleDateFormat
|
import java.text.SimpleDateFormat
|
||||||
import java.util.*
|
import java.util.*
|
||||||
|
|||||||
Reference in New Issue
Block a user