質問編集履歴
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質問の改善
test
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test
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@@ -12,574 +12,578 @@
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### 発生している問題・エラーメッセージ
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写真を撮ってみると、トースト表示していることもあり
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写真を撮れていることの確認とファイル名がとれていることがわかっております。
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しかし、この後imageviewで表示するために
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どうすればいいのかわかっておりません。
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こちらはギャラリーを一度開く必要があるのでしょうか。それともファイル名が取得できてさえいればそのまま表示できるのでしょうか。
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### 該当のソースコード
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```MainActivity
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import android.Manifest.permission.CAMERA
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import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
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import android.app.AlertDialog
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import android.content.ContentValues
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import android.content.Intent
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import android.content.pm.PackageManager
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import android.hardware.Camera
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import android.net.Uri
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import android.os.Build
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import android.os.Bundle
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import android.os.Environment
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import android.provider.MediaStore
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import android.view.SurfaceHolder
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import android.view.SurfaceView
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import android.view.View
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import android.widget.Button
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import android.widget.ImageView
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import android.widget.Toast
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import androidx.appcompat.app.AppCompatActivity
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import androidx.core.app.ActivityCompat
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import androidx.core.content.ContextCompat
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import java.io.File
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import java.io.FileNotFoundException
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import java.io.FileOutputStream
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import java.io.IOException
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import java.util.*
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class MainActivity : AppCompatActivity(), SurfaceHolder.Callback, Camera.PictureCallback {
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private var surfaceHolder: SurfaceHolder? = null
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private var camera: Camera? = null
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private var surfaceView: SurfaceView? = null
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private val neededPermissions = arrayOf(CAMERA, WRITE_EXTERNAL_STORAGE)
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private var _imageUri: Uri? = null
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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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surfaceView = findViewById(R.id.surfaceView)
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val result = checkPermission()
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if (result) {
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setupSurfaceHolder()
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}
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}
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// public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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// super.onActivityResult(requestCode, resultCode, data)
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// if(requestCode == 200 && resultCode == RESULT_OK) {
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//
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//
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// }
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// }
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private fun checkPermission(): Boolean {
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val currentAPIVersion = Build.VERSION.SDK_INT
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if (currentAPIVersion >= android.os.Build.VERSION_CODES.M) {
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val permissionsNotGranted = ArrayList<String>()
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for (permission in neededPermissions) {
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if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
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permissionsNotGranted.add(permission)
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}
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}
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if (permissionsNotGranted.size > 0) {
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var shouldShowAlert = false
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for (permission in permissionsNotGranted) {
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shouldShowAlert = ActivityCompat.shouldShowRequestPermissionRationale(this, permission)
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}
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val arr = arrayOfNulls<String>(permissionsNotGranted.size)
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val permissions = permissionsNotGranted.toArray(arr)
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if (shouldShowAlert) {
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showPermissionAlert(permissions)
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} else {
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requestPermissions(permissions)
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}
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return false
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}
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}
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return true
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}
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private fun showPermissionAlert(permissions: Array<String?>) {
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val alertBuilder = AlertDialog.Builder(this)
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alertBuilder.setCancelable(true)
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alertBuilder.setTitle(R.string.permission_required)
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alertBuilder.setMessage(R.string.permission_message)
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alertBuilder.setPositiveButton(android.R.string.yes) { _, _ -> requestPermissions(permissions) }
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val alert = alertBuilder.create()
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alert.show()
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}
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private fun requestPermissions(permissions: Array<String?>) {
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ActivityCompat.requestPermissions(this@MainActivity, permissions, REQUEST_CODE)
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}
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override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
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when (requestCode) {
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REQUEST_CODE -> {
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for (result in grantResults) {
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if (result == PackageManager.PERMISSION_DENIED) {
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Toast.makeText(this@MainActivity, R.string.permission_warning, Toast.LENGTH_LONG).show()
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View.VISIBLE.setViewVisibility(R.id.showPermissionMsg)
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return
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}
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}
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248
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setupSurfaceHolder()
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252
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253
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}
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254
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255
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}
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256
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257
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super.onRequestPermissionsResult(requestCode, permissions, grantResults)
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259
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}
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260
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261
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263
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private fun Int.setViewVisibility(id: Int) {
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val view = findViewById<View>(id)
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266
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267
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view!!.visibility = this
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269
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}
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273
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private fun setupSurfaceHolder() {
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275
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View.VISIBLE.setViewVisibility(R.id.startBtn)
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277
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View.VISIBLE.setViewVisibility(R.id.surfaceView)
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278
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279
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280
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281
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surfaceHolder = surfaceView!!.holder
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282
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283
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surfaceHolder!!.addCallback(this)
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284
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285
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setBtnClick()
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286
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287
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}
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288
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289
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290
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291
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private fun setBtnClick() {
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292
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293
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val startBtn = findViewById<Button>(R.id.startBtn)
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294
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295
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startBtn?.setOnClickListener { captureImage() }
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296
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297
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}
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298
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299
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300
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301
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private fun captureImage() {
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302
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303
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if (camera != null) {
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304
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305
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camera!!.takePicture(null, null, this)
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306
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307
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}
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308
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309
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}
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310
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311
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312
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313
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override fun surfaceCreated(surfaceHolder: SurfaceHolder) {
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314
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315
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startCamera()
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316
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317
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}
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318
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319
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320
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321
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private fun startCamera() {
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322
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323
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camera = Camera.open()
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324
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325
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camera!!.setDisplayOrientation(90)
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326
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327
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try {
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328
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329
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camera!!.setPreviewDisplay(surfaceHolder)
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330
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331
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camera!!.startPreview()
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332
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333
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} catch (e: IOException) {
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334
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335
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e.printStackTrace()
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336
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337
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}
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338
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339
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340
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341
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}
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342
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343
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344
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345
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override fun surfaceChanged(surfaceHolder: SurfaceHolder, i: Int, i1: Int, i2: Int) {
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346
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347
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resetCamera()
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348
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349
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}
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350
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351
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352
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353
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private fun resetCamera() {
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354
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355
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if (surfaceHolder!!.surface == null) {
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356
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+
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357
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// Return if preview surface does not exist
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358
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359
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return
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360
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|
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361
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}
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362
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363
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364
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365
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// Stop if preview surface is already running.
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366
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367
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camera!!.stopPreview()
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368
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369
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try {
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370
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+
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371
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// Set preview display
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372
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+
|
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373
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camera!!.setPreviewDisplay(surfaceHolder)
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374
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+
|
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375
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} catch (e: IOException) {
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376
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+
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377
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e.printStackTrace()
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378
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+
|
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379
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}
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380
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+
|
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381
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382
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383
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// Start the camera preview...
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384
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+
|
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385
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camera!!.startPreview()
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386
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+
|
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387
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}
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|
388
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+
|
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389
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+
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390
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+
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391
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override fun surfaceDestroyed(surfaceHolder: SurfaceHolder) {
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392
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393
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releaseCamera()
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394
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+
|
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395
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+
}
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|
396
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+
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397
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+
|
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398
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+
|
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399
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private fun releaseCamera() {
|
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400
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+
|
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401
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camera!!.stopPreview()
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402
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+
|
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403
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camera!!.release()
|
|
404
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+
|
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405
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camera = null
|
|
406
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+
|
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407
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}
|
|
408
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+
|
|
409
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+
|
|
410
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+
|
|
411
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+
override fun onPictureTaken(bytes: ByteArray, camera: Camera) {
|
|
412
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+
|
|
413
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+
saveImage(bytes)
|
|
414
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+
|
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415
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+
resetCamera()
|
|
416
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+
|
|
417
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+
}
|
|
418
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+
|
|
419
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+
|
|
420
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+
|
|
421
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+
private fun saveImage(bytes: ByteArray) {
|
|
422
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+
|
|
423
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+
val outStream: FileOutputStream
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|
424
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+
|
|
425
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+
try {
|
|
426
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+
|
|
427
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+
val fileName = "TUTORIALWING_" + System.currentTimeMillis() + ".jpg"
|
|
428
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+
|
|
429
|
+
val file = File(Environment.getExternalStorageDirectory(), fileName)
|
|
430
|
+
|
|
431
|
+
|
|
432
|
+
|
|
433
|
+
|
|
434
|
+
|
|
435
|
+
|
|
436
|
+
|
|
437
|
+
val values = ContentValues()
|
|
438
|
+
|
|
439
|
+
values.put(MediaStore.Images.Media.TITLE, fileName)
|
|
440
|
+
|
|
441
|
+
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
|
|
442
|
+
|
|
443
|
+
_imageUri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
|
|
444
|
+
|
|
445
|
+
// val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
|
|
446
|
+
|
|
447
|
+
intent.putExtra(MediaStore.EXTRA_OUTPUT, _imageUri)
|
|
448
|
+
|
|
449
|
+
// startActivityForResult(intent, 200)
|
|
450
|
+
|
|
451
|
+
|
|
452
|
+
|
|
453
|
+
outStream = FileOutputStream(file)
|
|
454
|
+
|
|
455
|
+
outStream.write(bytes)
|
|
456
|
+
|
|
457
|
+
outStream.close()
|
|
458
|
+
|
|
459
|
+
Toast.makeText(this@MainActivity, "Picture Saved: $fileName", Toast.LENGTH_LONG).show()
|
|
460
|
+
|
|
461
|
+
|
|
462
|
+
|
|
463
|
+
val ivCamera = findViewById<ImageView>(R.id.ivCamera)
|
|
464
|
+
|
|
465
|
+
ivCamera.setImageURI(_imageUri)
|
|
466
|
+
|
|
467
|
+
|
|
468
|
+
|
|
469
|
+
} catch (e: FileNotFoundException) {
|
|
470
|
+
|
|
471
|
+
e.printStackTrace()
|
|
472
|
+
|
|
473
|
+
} catch (e: IOException) {
|
|
474
|
+
|
|
475
|
+
e.printStackTrace()
|
|
476
|
+
|
|
477
|
+
}
|
|
478
|
+
|
|
479
|
+
}
|
|
480
|
+
|
|
481
|
+
|
|
482
|
+
|
|
483
|
+
companion object {
|
|
484
|
+
|
|
485
|
+
const val REQUEST_CODE = 100
|
|
486
|
+
|
|
487
|
+
}
|
|
488
|
+
|
|
489
|
+
}
|
|
490
|
+
|
|
491
|
+
```
|
|
492
|
+
|
|
493
|
+
```xml
|
|
494
|
+
|
|
495
|
+
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
|
496
|
+
|
|
497
|
+
xmlns:app="http://schemas.android.com/apk/res-auto"
|
|
498
|
+
|
|
499
|
+
xmlns:tools="http://schemas.android.com/tools"
|
|
500
|
+
|
|
501
|
+
android:layout_width="match_parent"
|
|
502
|
+
|
|
503
|
+
android:layout_height="match_parent"
|
|
504
|
+
|
|
505
|
+
android:orientation="vertical">
|
|
506
|
+
|
|
507
|
+
|
|
508
|
+
|
|
509
|
+
<SurfaceView
|
|
510
|
+
|
|
511
|
+
android:id="@+id/surfaceView"
|
|
512
|
+
|
|
513
|
+
android:layout_width="match_parent"
|
|
514
|
+
|
|
515
|
+
android:layout_height="match_parent"
|
|
516
|
+
|
|
517
|
+
android:visibility="gone" />
|
|
518
|
+
|
|
519
|
+
|
|
520
|
+
|
|
521
|
+
<Button
|
|
522
|
+
|
|
523
|
+
android:id="@+id/startBtn"
|
|
524
|
+
|
|
525
|
+
android:layout_width="wrap_content"
|
|
526
|
+
|
|
527
|
+
android:layout_height="wrap_content"
|
|
528
|
+
|
|
529
|
+
android:layout_gravity="center_horizontal|bottom"
|
|
530
|
+
|
|
531
|
+
android:text="@string/take_photo"
|
|
532
|
+
|
|
533
|
+
android:visibility="gone" />
|
|
534
|
+
|
|
535
|
+
|
|
536
|
+
|
|
537
|
+
<TextView
|
|
538
|
+
|
|
539
|
+
android:id="@+id/showPermissionMsg"
|
|
540
|
+
|
|
541
|
+
android:layout_width="wrap_content"
|
|
542
|
+
|
|
543
|
+
android:layout_height="wrap_content"
|
|
544
|
+
|
|
545
|
+
android:layout_gravity="center"
|
|
546
|
+
|
|
547
|
+
android:padding="@dimen/show_permission_padding"
|
|
548
|
+
|
|
549
|
+
android:text="@string/permission_message"
|
|
550
|
+
|
|
551
|
+
android:textAlignment="center"
|
|
552
|
+
|
|
553
|
+
android:textStyle="bold|italic"
|
|
554
|
+
|
|
555
|
+
android:visibility="gone" />
|
|
556
|
+
|
|
557
|
+
|
|
558
|
+
|
|
559
|
+
<ImageView
|
|
560
|
+
|
|
561
|
+
android:id="@+id/ivCamera"
|
|
562
|
+
|
|
563
|
+
android:layout_width="match_parent"
|
|
564
|
+
|
|
565
|
+
android:layout_height="match_parent"
|
|
566
|
+
|
|
567
|
+
android:layout_gravity="center"
|
|
568
|
+
|
|
569
|
+
android:scaleType="center"/>
|
|
570
|
+
|
|
571
|
+
|
|
572
|
+
|
|
573
|
+
</FrameLayout>
|
|
574
|
+
|
|
575
|
+
```
|
|
576
|
+
|
|
577
|
+
### 試したこと
|
|
578
|
+
|
|
579
|
+
|
|
580
|
+
|
|
15
|
-
以前、ただimageviewに
|
|
581
|
+
以前、撮った写真をただimageviewに表示するには
|
|
16
582
|
|
|
17
583
|
setImageURIを使えば解決しておりましたが、
|
|
18
584
|
|
|
19
585
|
今回はこちらを追加しても何も変化が起きませんでした。
|
|
20
586
|
|
|
21
|
-
|
|
22
|
-
|
|
23
|
-
### 該当のソースコード
|
|
24
|
-
|
|
25
|
-
|
|
26
|
-
|
|
27
|
-
```MainActivity
|
|
28
|
-
|
|
29
|
-
import android.Manifest.permission.CAMERA
|
|
30
|
-
|
|
31
|
-
import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
|
|
32
|
-
|
|
33
|
-
import android.app.AlertDialog
|
|
34
|
-
|
|
35
|
-
import android.content.ContentValues
|
|
36
|
-
|
|
37
|
-
import android.content.Intent
|
|
38
|
-
|
|
39
|
-
import android.content.pm.PackageManager
|
|
40
|
-
|
|
41
|
-
import android.hardware.Camera
|
|
42
|
-
|
|
43
|
-
import android.net.Uri
|
|
44
|
-
|
|
45
|
-
import android.os.Build
|
|
46
|
-
|
|
47
|
-
import android.os.Bundle
|
|
48
|
-
|
|
49
|
-
import android.os.Environment
|
|
50
|
-
|
|
51
|
-
import android.provider.MediaStore
|
|
52
|
-
|
|
53
|
-
import android.view.SurfaceHolder
|
|
54
|
-
|
|
55
|
-
import android.view.SurfaceView
|
|
56
|
-
|
|
57
|
-
import android.view.View
|
|
58
|
-
|
|
59
|
-
import android.widget.Button
|
|
60
|
-
|
|
61
|
-
import android.widget.ImageView
|
|
62
|
-
|
|
63
|
-
import android.widget.Toast
|
|
64
|
-
|
|
65
|
-
import androidx.appcompat.app.AppCompatActivity
|
|
66
|
-
|
|
67
|
-
import androidx.core.app.ActivityCompat
|
|
68
|
-
|
|
69
|
-
import androidx.core.content.ContextCompat
|
|
70
|
-
|
|
71
|
-
import java.io.File
|
|
72
|
-
|
|
73
|
-
import java.io.FileNotFoundException
|
|
74
|
-
|
|
75
|
-
import java.io.FileOutputStream
|
|
76
|
-
|
|
77
|
-
import java.io.IOException
|
|
78
|
-
|
|
79
|
-
import java.util.*
|
|
80
|
-
|
|
81
|
-
|
|
82
|
-
|
|
83
|
-
class MainActivity : AppCompatActivity(), SurfaceHolder.Callback, Camera.PictureCallback {
|
|
84
|
-
|
|
85
|
-
|
|
86
|
-
|
|
87
|
-
private var surfaceHolder: SurfaceHolder? = null
|
|
88
|
-
|
|
89
|
-
private var camera: Camera? = null
|
|
90
|
-
|
|
91
|
-
|
|
92
|
-
|
|
93
|
-
private var surfaceView: SurfaceView? = null
|
|
94
|
-
|
|
95
|
-
|
|
96
|
-
|
|
97
|
-
private val neededPermissions = arrayOf(CAMERA, WRITE_EXTERNAL_STORAGE)
|
|
98
|
-
|
|
99
|
-
|
|
100
|
-
|
|
101
|
-
private var _imageUri: Uri? = null
|
|
102
|
-
|
|
103
|
-
|
|
104
|
-
|
|
105
|
-
override fun onCreate(savedInstanceState: Bundle?) {
|
|
106
|
-
|
|
107
|
-
super.onCreate(savedInstanceState)
|
|
108
|
-
|
|
109
|
-
setContentView(R.layout.activity_main)
|
|
110
|
-
|
|
111
|
-
|
|
112
|
-
|
|
113
|
-
surfaceView = findViewById(R.id.surfaceView)
|
|
114
|
-
|
|
115
|
-
val result = checkPermission()
|
|
116
|
-
|
|
117
|
-
if (result) {
|
|
118
|
-
|
|
119
|
-
setupSurfaceHolder()
|
|
120
|
-
|
|
121
|
-
}
|
|
122
|
-
|
|
123
|
-
}
|
|
124
|
-
|
|
125
|
-
// public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
|
|
126
|
-
|
|
127
|
-
// super.onActivityResult(requestCode, resultCode, data)
|
|
128
|
-
|
|
129
|
-
// if(requestCode == 200 && resultCode == RESULT_OK) {
|
|
130
|
-
|
|
131
|
-
//
|
|
132
|
-
|
|
133
|
-
//
|
|
134
|
-
|
|
135
|
-
// }
|
|
136
|
-
|
|
137
|
-
// }
|
|
138
|
-
|
|
139
|
-
|
|
140
|
-
|
|
141
|
-
private fun checkPermission(): Boolean {
|
|
142
|
-
|
|
143
|
-
val currentAPIVersion = Build.VERSION.SDK_INT
|
|
144
|
-
|
|
145
|
-
if (currentAPIVersion >= android.os.Build.VERSION_CODES.M) {
|
|
146
|
-
|
|
147
|
-
val permissionsNotGranted = ArrayList<String>()
|
|
148
|
-
|
|
149
|
-
for (permission in neededPermissions) {
|
|
150
|
-
|
|
151
|
-
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
|
|
152
|
-
|
|
153
|
-
permissionsNotGranted.add(permission)
|
|
154
|
-
|
|
155
|
-
}
|
|
156
|
-
|
|
157
|
-
}
|
|
158
|
-
|
|
159
|
-
if (permissionsNotGranted.size > 0) {
|
|
160
|
-
|
|
161
|
-
var shouldShowAlert = false
|
|
162
|
-
|
|
163
|
-
for (permission in permissionsNotGranted) {
|
|
164
|
-
|
|
165
|
-
shouldShowAlert = ActivityCompat.shouldShowRequestPermissionRationale(this, permission)
|
|
166
|
-
|
|
167
|
-
}
|
|
168
|
-
|
|
169
|
-
|
|
170
|
-
|
|
171
|
-
val arr = arrayOfNulls<String>(permissionsNotGranted.size)
|
|
172
|
-
|
|
173
|
-
val permissions = permissionsNotGranted.toArray(arr)
|
|
174
|
-
|
|
175
|
-
if (shouldShowAlert) {
|
|
176
|
-
|
|
177
|
-
showPermissionAlert(permissions)
|
|
178
|
-
|
|
179
|
-
} else {
|
|
180
|
-
|
|
181
|
-
requestPermissions(permissions)
|
|
182
|
-
|
|
183
|
-
}
|
|
184
|
-
|
|
185
|
-
return false
|
|
186
|
-
|
|
187
|
-
}
|
|
188
|
-
|
|
189
|
-
}
|
|
190
|
-
|
|
191
|
-
return true
|
|
192
|
-
|
|
193
|
-
}
|
|
194
|
-
|
|
195
|
-
|
|
196
|
-
|
|
197
|
-
private fun showPermissionAlert(permissions: Array<String?>) {
|
|
198
|
-
|
|
199
|
-
val alertBuilder = AlertDialog.Builder(this)
|
|
200
|
-
|
|
201
|
-
alertBuilder.setCancelable(true)
|
|
202
|
-
|
|
203
|
-
alertBuilder.setTitle(R.string.permission_required)
|
|
204
|
-
|
|
205
|
-
alertBuilder.setMessage(R.string.permission_message)
|
|
206
|
-
|
|
207
|
-
alertBuilder.setPositiveButton(android.R.string.yes) { _, _ -> requestPermissions(permissions) }
|
|
208
|
-
|
|
209
|
-
val alert = alertBuilder.create()
|
|
210
|
-
|
|
211
|
-
alert.show()
|
|
212
|
-
|
|
213
|
-
}
|
|
214
|
-
|
|
215
|
-
|
|
216
|
-
|
|
217
|
-
private fun requestPermissions(permissions: Array<String?>) {
|
|
218
|
-
|
|
219
|
-
ActivityCompat.requestPermissions(this@MainActivity, permissions, REQUEST_CODE)
|
|
220
|
-
|
|
221
|
-
}
|
|
222
|
-
|
|
223
|
-
|
|
224
|
-
|
|
225
|
-
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
|
|
226
|
-
|
|
227
|
-
when (requestCode) {
|
|
228
|
-
|
|
229
|
-
REQUEST_CODE -> {
|
|
230
|
-
|
|
231
|
-
for (result in grantResults) {
|
|
232
|
-
|
|
233
|
-
if (result == PackageManager.PERMISSION_DENIED) {
|
|
234
|
-
|
|
235
|
-
Toast.makeText(this@MainActivity, R.string.permission_warning, Toast.LENGTH_LONG).show()
|
|
236
|
-
|
|
237
|
-
View.VISIBLE.setViewVisibility(R.id.showPermissionMsg)
|
|
238
|
-
|
|
239
|
-
return
|
|
240
|
-
|
|
241
|
-
}
|
|
242
|
-
|
|
243
|
-
}
|
|
244
|
-
|
|
245
|
-
|
|
246
|
-
|
|
247
|
-
setupSurfaceHolder()
|
|
248
|
-
|
|
249
|
-
}
|
|
250
|
-
|
|
251
|
-
}
|
|
252
|
-
|
|
253
|
-
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
|
|
254
|
-
|
|
255
|
-
}
|
|
256
|
-
|
|
257
|
-
|
|
258
|
-
|
|
259
|
-
private fun Int.setViewVisibility(id: Int) {
|
|
260
|
-
|
|
261
|
-
val view = findViewById<View>(id)
|
|
262
|
-
|
|
263
|
-
view!!.visibility = this
|
|
264
|
-
|
|
265
|
-
}
|
|
266
|
-
|
|
267
|
-
|
|
268
|
-
|
|
269
|
-
private fun setupSurfaceHolder() {
|
|
270
|
-
|
|
271
|
-
View.VISIBLE.setViewVisibility(R.id.startBtn)
|
|
272
|
-
|
|
273
|
-
View.VISIBLE.setViewVisibility(R.id.surfaceView)
|
|
274
|
-
|
|
275
|
-
|
|
276
|
-
|
|
277
|
-
surfaceHolder = surfaceView!!.holder
|
|
278
|
-
|
|
279
|
-
surfaceHolder!!.addCallback(this)
|
|
280
|
-
|
|
281
|
-
setBtnClick()
|
|
282
|
-
|
|
283
|
-
}
|
|
284
|
-
|
|
285
|
-
|
|
286
|
-
|
|
287
|
-
private fun setBtnClick() {
|
|
288
|
-
|
|
289
|
-
val startBtn = findViewById<Button>(R.id.startBtn)
|
|
290
|
-
|
|
291
|
-
startBtn?.setOnClickListener { captureImage() }
|
|
292
|
-
|
|
293
|
-
}
|
|
294
|
-
|
|
295
|
-
|
|
296
|
-
|
|
297
|
-
private fun captureImage() {
|
|
298
|
-
|
|
299
|
-
if (camera != null) {
|
|
300
|
-
|
|
301
|
-
camera!!.takePicture(null, null, this)
|
|
302
|
-
|
|
303
|
-
}
|
|
304
|
-
|
|
305
|
-
}
|
|
306
|
-
|
|
307
|
-
|
|
308
|
-
|
|
309
|
-
override fun surfaceCreated(surfaceHolder: SurfaceHolder) {
|
|
310
|
-
|
|
311
|
-
startCamera()
|
|
312
|
-
|
|
313
|
-
}
|
|
314
|
-
|
|
315
|
-
|
|
316
|
-
|
|
317
|
-
private fun startCamera() {
|
|
318
|
-
|
|
319
|
-
camera = Camera.open()
|
|
320
|
-
|
|
321
|
-
camera!!.setDisplayOrientation(90)
|
|
322
|
-
|
|
323
|
-
try {
|
|
324
|
-
|
|
325
|
-
camera!!.setPreviewDisplay(surfaceHolder)
|
|
326
|
-
|
|
327
|
-
camera!!.startPreview()
|
|
328
|
-
|
|
329
|
-
} catch (e: IOException) {
|
|
330
|
-
|
|
331
|
-
e.printStackTrace()
|
|
332
|
-
|
|
333
|
-
}
|
|
334
|
-
|
|
335
|
-
|
|
336
|
-
|
|
337
|
-
}
|
|
338
|
-
|
|
339
|
-
|
|
340
|
-
|
|
341
|
-
override fun surfaceChanged(surfaceHolder: SurfaceHolder, i: Int, i1: Int, i2: Int) {
|
|
342
|
-
|
|
343
|
-
resetCamera()
|
|
344
|
-
|
|
345
|
-
}
|
|
346
|
-
|
|
347
|
-
|
|
348
|
-
|
|
349
|
-
private fun resetCamera() {
|
|
350
|
-
|
|
351
|
-
if (surfaceHolder!!.surface == null) {
|
|
352
|
-
|
|
353
|
-
// Return if preview surface does not exist
|
|
354
|
-
|
|
355
|
-
return
|
|
356
|
-
|
|
357
|
-
}
|
|
358
|
-
|
|
359
|
-
|
|
360
|
-
|
|
361
|
-
// Stop if preview surface is already running.
|
|
362
|
-
|
|
363
|
-
camera!!.stopPreview()
|
|
364
|
-
|
|
365
|
-
try {
|
|
366
|
-
|
|
367
|
-
// Set preview display
|
|
368
|
-
|
|
369
|
-
camera!!.setPreviewDisplay(surfaceHolder)
|
|
370
|
-
|
|
371
|
-
} catch (e: IOException) {
|
|
372
|
-
|
|
373
|
-
e.printStackTrace()
|
|
374
|
-
|
|
375
|
-
}
|
|
376
|
-
|
|
377
|
-
|
|
378
|
-
|
|
379
|
-
// Start the camera preview...
|
|
380
|
-
|
|
381
|
-
camera!!.startPreview()
|
|
382
|
-
|
|
383
|
-
}
|
|
384
|
-
|
|
385
|
-
|
|
386
|
-
|
|
387
|
-
override fun surfaceDestroyed(surfaceHolder: SurfaceHolder) {
|
|
388
|
-
|
|
389
|
-
releaseCamera()
|
|
390
|
-
|
|
391
|
-
}
|
|
392
|
-
|
|
393
|
-
|
|
394
|
-
|
|
395
|
-
private fun releaseCamera() {
|
|
396
|
-
|
|
397
|
-
camera!!.stopPreview()
|
|
398
|
-
|
|
399
|
-
camera!!.release()
|
|
400
|
-
|
|
401
|
-
camera = null
|
|
402
|
-
|
|
403
|
-
}
|
|
404
|
-
|
|
405
|
-
|
|
406
|
-
|
|
407
|
-
override fun onPictureTaken(bytes: ByteArray, camera: Camera) {
|
|
408
|
-
|
|
409
|
-
saveImage(bytes)
|
|
410
|
-
|
|
411
|
-
resetCamera()
|
|
412
|
-
|
|
413
|
-
}
|
|
414
|
-
|
|
415
|
-
|
|
416
|
-
|
|
417
|
-
private fun saveImage(bytes: ByteArray) {
|
|
418
|
-
|
|
419
|
-
val outStream: FileOutputStream
|
|
420
|
-
|
|
421
|
-
try {
|
|
422
|
-
|
|
423
|
-
val fileName = "TUTORIALWING_" + System.currentTimeMillis() + ".jpg"
|
|
424
|
-
|
|
425
|
-
val file = File(Environment.getExternalStorageDirectory(), fileName)
|
|
426
|
-
|
|
427
|
-
|
|
428
|
-
|
|
429
|
-
|
|
430
|
-
|
|
431
|
-
|
|
432
|
-
|
|
433
|
-
val values = ContentValues()
|
|
434
|
-
|
|
435
|
-
values.put(MediaStore.Images.Media.TITLE, fileName)
|
|
436
|
-
|
|
437
|
-
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
|
|
438
|
-
|
|
439
|
-
_imageUri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
|
|
440
|
-
|
|
441
|
-
// val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
|
|
442
|
-
|
|
443
|
-
intent.putExtra(MediaStore.EXTRA_OUTPUT, _imageUri)
|
|
444
|
-
|
|
445
|
-
// startActivityForResult(intent, 200)
|
|
446
|
-
|
|
447
|
-
|
|
448
|
-
|
|
449
|
-
outStream = FileOutputStream(file)
|
|
450
|
-
|
|
451
|
-
outStream.write(bytes)
|
|
452
|
-
|
|
453
|
-
outStream.close()
|
|
454
|
-
|
|
455
|
-
Toast.makeText(this@MainActivity, "Picture Saved: $fileName", Toast.LENGTH_LONG).show()
|
|
456
|
-
|
|
457
|
-
|
|
458
|
-
|
|
459
|
-
val ivCamera = findViewById<ImageView>(R.id.ivCamera)
|
|
460
|
-
|
|
461
|
-
ivCamera.setImageURI(_imageUri)
|
|
462
|
-
|
|
463
|
-
|
|
464
|
-
|
|
465
|
-
} catch (e: FileNotFoundException) {
|
|
466
|
-
|
|
467
|
-
e.printStackTrace()
|
|
468
|
-
|
|
469
|
-
} catch (e: IOException) {
|
|
470
|
-
|
|
471
|
-
e.printStackTrace()
|
|
472
|
-
|
|
473
|
-
}
|
|
474
|
-
|
|
475
|
-
}
|
|
476
|
-
|
|
477
|
-
|
|
478
|
-
|
|
479
|
-
companion object {
|
|
480
|
-
|
|
481
|
-
const val REQUEST_CODE = 100
|
|
482
|
-
|
|
483
|
-
}
|
|
484
|
-
|
|
485
|
-
}
|
|
486
|
-
|
|
487
|
-
```
|
|
488
|
-
|
|
489
|
-
```xml
|
|
490
|
-
|
|
491
|
-
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
|
492
|
-
|
|
493
|
-
xmlns:app="http://schemas.android.com/apk/res-auto"
|
|
494
|
-
|
|
495
|
-
xmlns:tools="http://schemas.android.com/tools"
|
|
496
|
-
|
|
497
|
-
android:layout_width="match_parent"
|
|
498
|
-
|
|
499
|
-
android:layout_height="match_parent"
|
|
500
|
-
|
|
501
|
-
android:orientation="vertical">
|
|
502
|
-
|
|
503
|
-
|
|
504
|
-
|
|
505
|
-
<SurfaceView
|
|
506
|
-
|
|
507
|
-
android:id="@+id/surfaceView"
|
|
508
|
-
|
|
509
|
-
android:layout_width="match_parent"
|
|
510
|
-
|
|
511
|
-
android:layout_height="match_parent"
|
|
512
|
-
|
|
513
|
-
android:visibility="gone" />
|
|
514
|
-
|
|
515
|
-
|
|
516
|
-
|
|
517
|
-
<Button
|
|
518
|
-
|
|
519
|
-
android:id="@+id/startBtn"
|
|
520
|
-
|
|
521
|
-
android:layout_width="wrap_content"
|
|
522
|
-
|
|
523
|
-
android:layout_height="wrap_content"
|
|
524
|
-
|
|
525
|
-
android:layout_gravity="center_horizontal|bottom"
|
|
526
|
-
|
|
527
|
-
android:text="@string/take_photo"
|
|
528
|
-
|
|
529
|
-
android:visibility="gone" />
|
|
530
|
-
|
|
531
|
-
|
|
532
|
-
|
|
533
|
-
<TextView
|
|
534
|
-
|
|
535
|
-
android:id="@+id/showPermissionMsg"
|
|
536
|
-
|
|
537
|
-
android:layout_width="wrap_content"
|
|
538
|
-
|
|
539
|
-
android:layout_height="wrap_content"
|
|
540
|
-
|
|
541
|
-
android:layout_gravity="center"
|
|
542
|
-
|
|
543
|
-
android:padding="@dimen/show_permission_padding"
|
|
544
|
-
|
|
545
|
-
android:text="@string/permission_message"
|
|
546
|
-
|
|
547
|
-
android:textAlignment="center"
|
|
548
|
-
|
|
549
|
-
android:textStyle="bold|italic"
|
|
550
|
-
|
|
551
|
-
android:visibility="gone" />
|
|
552
|
-
|
|
553
|
-
|
|
554
|
-
|
|
555
|
-
<ImageView
|
|
556
|
-
|
|
557
|
-
android:id="@+id/ivCamera"
|
|
558
|
-
|
|
559
|
-
android:layout_width="match_parent"
|
|
560
|
-
|
|
561
|
-
android:layout_height="match_parent"
|
|
562
|
-
|
|
563
|
-
android:layout_gravity="center"
|
|
564
|
-
|
|
565
|
-
android:scaleType="center"/>
|
|
566
|
-
|
|
567
|
-
|
|
568
|
-
|
|
569
|
-
</FrameLayout>
|
|
570
|
-
|
|
571
|
-
```
|
|
572
|
-
|
|
573
|
-
### 試したこと
|
|
574
|
-
|
|
575
|
-
|
|
576
|
-
|
|
577
|
-
以前、撮った写真をただimageviewに表示するには
|
|
578
|
-
|
|
579
|
-
setImageURIを使えば解決しておりましたが、
|
|
580
|
-
|
|
581
|
-
今回はこちらを追加しても何も変化が起きませんでした。
|
|
582
|
-
|
|
583
587
|
何が足りていないのか、もしくは場所を間違えているのか
|
|
584
588
|
|
|
585
589
|
ご教示願えないでしょうか。
|