dwindows: android/DWindows.kt comparison

comparison android/DWindows.kt @ 2594:2c15b3d41fe4

Android: Add preliminary new file browser that uses the system ACTION_GET_CONTENT Intent. This doesn't quite work right yet, so includingit as fileBrowseNew() until I can get it working well.

author	bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date	Fri, 28 May 2021 01:02:07 +0000
parents	8352c38bc20b
children	6b5057dd6b8e

comparison

equal deleted inserted replaced

-:cc2befdc97e8
+:2c15b3d41fe4
 import android.R
 import android.app.Activity
 import android.app.Dialog
 import android.app.NotificationChannel
 import android.app.NotificationManager
-import android.content.ClipData
+import android.content.*
-import android.content.ClipboardManager
-import android.content.Context
-import android.content.DialogInterface
 import android.content.pm.ActivityInfo
 import android.content.res.Configuration
+import android.database.Cursor
 import android.graphics.*
 import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.Drawable
 import android.graphics.drawable.GradientDrawable
 import android.media.AudioManager
 import android.media.ToneGenerator
+import android.net.Uri
 import android.os.*
+import android.provider.DocumentsContract
+import android.provider.MediaStore
 import android.text.InputFilter
 import android.text.InputFilter.LengthFilter
 import android.text.InputType
 import android.text.method.PasswordTransformationMethod
 import android.util.Base64
 var darkMode: Int = -1
 private var paint = Paint()
 private var bgcolor: Int = 0
 private var menuBar: DWMenu? = null
 private var defaultItem: View? = null
+private var fileURI: Uri? = null
 // Our version of runOnUiThread that waits for execution
 fun waitOnUiThread(runnable: Runnable)
 {
 if(Looper.myLooper() == Looper.getMainLooper()) {
 fun debugMessage(text: String)
 {
 Log.d(null, text)
 }
+override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+super.onActivityResult(requestCode, resultCode, data)
+if(requestCode == 100 && resultCode == Activity.RESULT_OK) {
+fileURI = data!!.data
+throw java.lang.RuntimeException()
+}
+}
+fun fileBrowseNew(title: String, defpath: String?, ext: String?, flags: Int): String?
+{
+var retval: String? = null
+waitOnUiThread {
+val fileintent = Intent(Intent.ACTION_GET_CONTENT)
+fileintent.type = "text/plain"
+fileintent.addCategory(Intent.CATEGORY_OPENABLE)
+startActivityForResult(fileintent, 100)
+}
+// loop till a runtime exception is triggered.
+try {
+Looper.loop()
+} catch (e2: RuntimeException) {
+}
+retval = getUriRealPath(this, fileURI)
+return retval
+}
 fun fileBrowse(title: String, defpath: String?, ext: String?, flags: Int): String?
 {
 var retval: String? = null
 waitOnUiThread {
 val fc = DWFileChooser(this)
 fc.setFileListener(object: DWFileChooser.FileSelectedListener {
 override fun fileSelected(file: File?) {
 // do something with the file
 retval = file!!.absolutePath
 throw java.lang.RuntimeException()
 }
 })
 if(ext != null) {
 fc.setExtension(ext)
 }
 fc.showDialog()
 }
 with(NotificationManagerCompat.from(this)) {
 // notificationId is a unique int for each notification that you must define
 notify(notificationID, builder.build())
 }
 }
+}
+/*
+* This method will parse out the real local file path from the file content URI.
+*/
+private fun getUriRealPath(ctx: Context?, uri: Uri?): String? {
+var ret: String? = ""
+if (ctx != null && uri != null) {
+if (isContentUri(uri)) {
+if (isGooglePhotoDoc(uri.authority)) {
+ret = uri.lastPathSegment
+} else {
+ret = getImageRealPath(contentResolver, uri, null)
+}
+} else if (isFileUri(uri)) {
+ret = uri.path
+} else if (isDocumentUri(ctx, uri)) {
+// Get uri related document id.
+val documentId = DocumentsContract.getDocumentId(uri)
+// Get uri authority.
+val uriAuthority: String? = uri.authority
+if (isMediaDoc(uriAuthority)) {
+val idArr = documentId.split(":").toTypedArray()
+if (idArr.size == 2) {
+// First item is document type.
+val docType = idArr[0]
+// Second item is document real id.
+val realDocId = idArr[1]
+// Get content uri by document type.
+var mediaContentUri: Uri? = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
+if ("image" == docType) {
+mediaContentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
+} else if ("video" == docType) {
+mediaContentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
+} else if ("audio" == docType) {
+mediaContentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
+}
+// Get where clause with real document id.
+val whereClause = MediaStore.Images.Media._ID + " = " + realDocId
+ret = getImageRealPath(contentResolver, mediaContentUri, whereClause)
+}
+} else if (isDownloadDoc(uriAuthority)) {
+// Build download uri.
+val downloadUri: Uri = Uri.parse("content://downloads/public_downloads")
+// Append download document id at uri end.
+val downloadUriAppendId: Uri =
+ContentUris.withAppendedId(downloadUri, java.lang.Long.valueOf(documentId))
+ret = getImageRealPath(contentResolver, downloadUriAppendId, null)
+} else if (isExternalStoreDoc(uriAuthority)) {
+val idArr = documentId.split(":").toTypedArray()
+if (idArr.size == 2) {
+val type = idArr[0]
+val realDocId = idArr[1]
+if ("primary".equals(type, ignoreCase = true)) {
+ret = Environment.getExternalStorageDirectory()
+.toString() + "/" + realDocId
+}
+}
+}
+}
+}
+return ret
+}
+/* Check whether this uri represent a document or not. */
+private fun isDocumentUri(ctx: Context?, uri: Uri?): Boolean {
+var ret = false
+if (ctx != null && uri != null) {
+ret = DocumentsContract.isDocumentUri(ctx, uri)
+}
+return ret
+}
+/* Check whether this uri is a content uri or not.
+*  content uri like content://media/external/images/media/1302716
+*/
+private fun isContentUri(uri: Uri?): Boolean {
+var ret = false
+if (uri != null) {
+val uriSchema: String? = uri.scheme
+if ("content".equals(uriSchema, ignoreCase = true)) {
+ret = true
+}
+}
+return ret
+}
+/* Check whether this uri is a file uri or not.
+*  file uri like file:///storage/41B7-12F1/DCIM/Camera/IMG_20180211_095139.jpg
+*/
+private fun isFileUri(uri: Uri?): Boolean {
+var ret = false
+if (uri != null) {
+val uriSchema: String? = uri.scheme
+if ("file".equals(uriSchema, ignoreCase = true)) {
+ret = true
+}
+}
+return ret
+}
+/* Check whether this document is provided by ExternalStorageProvider. Return true means the file is saved in external storage. */
+private fun isExternalStoreDoc(uriAuthority: String?): Boolean {
+var ret = false
+if (uriAuthority != null && "com.android.externalstorage.documents" == uriAuthority) {
+ret = true
+}
+return ret
+}
+/* Check whether this document is provided by DownloadsProvider. return true means this file is a downloaed file. */
+private fun isDownloadDoc(uriAuthority: String?): Boolean {
+var ret = false
+if (uriAuthority != null && "com.android.providers.downloads.documents" == uriAuthority) {
+ret = true
+}
+return ret
+}
+/*
+* Check if MediaProvider provide this document, if true means this image is created in android media app.
+*/
+private fun isMediaDoc(uriAuthority: String?): Boolean {
+var ret = false
+if (uriAuthority != null && "com.android.providers.media.documents" == uriAuthority) {
+ret = true
+}
+return ret
+}
+/*
+* Check whether google photos provide this document, if true means this image is created in google photos app.
+*/
+private fun isGooglePhotoDoc(uriAuthority: String?): Boolean {
+var ret = false
+if (uriAuthority != null && "com.google.android.apps.photos.content" == uriAuthority) {
+ret = true
+}
+return ret
+}
+/* Return uri represented document file real local path.*/
+private fun getImageRealPath(
+contentResolver: ContentResolver,
+uri: Uri?,
+whereClause: String?
+): String {
+var ret = ""
+if(uri != null) {
+// Query the uri with condition.
+val cursor: Cursor? = contentResolver.query(uri, null, whereClause, null, null)
+if (cursor != null) {
+val moveToFirst: Boolean = cursor.moveToFirst()
+if (moveToFirst) {
+// Get columns name by uri type.
+var columnName = MediaStore.Images.Media.DATA
+if (uri === MediaStore.Images.Media.EXTERNAL_CONTENT_URI) {
+columnName = MediaStore.Images.Media.DATA
+} else if (uri === MediaStore.Audio.Media.EXTERNAL_CONTENT_URI) {
+columnName = MediaStore.Audio.Media.DATA
+} else if (uri === MediaStore.Video.Media.EXTERNAL_CONTENT_URI) {
+columnName = MediaStore.Video.Media.DATA
+}
+// Get column index.
+val imageColumnIndex: Int = cursor.getColumnIndex(columnName)
+// Get column value which is the uri related file local path.
+ret = cursor.getString(imageColumnIndex)
+// Clean up
+cursor.close()
+}
+}
+}
+return ret
 }
 /*
 * Native methods that are implemented by the 'dwindows' native library,
 * which is packaged with this application.

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comparison android/DWindows.kt @ 2594:2c15b3d41fe4