dwindows: android/DWindows.kt comparison

comparison android/DWindows.kt @ 2526:d3f09b3f3703

Android: Initial dw_file_browse() implementation, still needs some work. Fix minor issues with the Calendar control.

author	bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date	Mon, 10 May 2021 02:01:28 +0000
parents	d5c3c573c74e
children	eec926265888

comparison

equal deleted inserted replaced

-:9fd26efff9da
+:d3f09b3f3703
 package org.dbsoft.dwindows
-import android.R.attr
+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.ClipboardManager
 import android.content.Context
 import androidx.viewpager2.widget.ViewPager2
 import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayout.OnTabSelectedListener
 import com.google.android.material.tabs.TabLayoutMediator
 import java.io.File
+import java.io.FileFilter
 import java.io.FileInputStream
 import java.io.FileNotFoundException
 import java.util.*
 import java.util.concurrent.locks.ReentrantLock
 inta: Int,
 intb: Int,
 intc: Int,
 intd: Int
 )
+}
+class DWFileChooser(private val activity: Activity) {
+private val list: ListView = ListView(activity)
+private val dialog: Dialog = Dialog(activity)
+private var currentPath: File? = null
+// filter on file extension
+private var extension: String? = null
+fun setExtension(extension: String?) {
+this.extension = extension?.toLowerCase(Locale.ROOT)
+}
+// file selection event handling
+interface FileSelectedListener {
+fun fileSelected(file: File?)
+}
+fun setFileListener(fileListener: FileSelectedListener?): DWFileChooser {
+this.fileListener = fileListener
+return this
+}
+private var fileListener: FileSelectedListener? = null
+fun showDialog() {
+dialog.show()
+}
+/**
+* Sort, filter and display the files for the given path.
+*/
+private fun refresh(path: File?) {
+currentPath = path
+if (path != null) {
+if (path.exists()) {
+val dirs = path.listFiles { file -> file.isDirectory && file.canRead() }
+val files = path.listFiles { file ->
+if (!file.isDirectory) {
+if (!file.canRead()) {
+false
+} else if (extension == null) {
+true
+} else {
+file.name.toLowerCase(Locale.ROOT).endsWith(extension!!)
+}
+} else {
+false
+}
+}
+// convert to an array
+var i = 0
+val fileList: Array<String?>
+var filecount = 0
+var dircount = 0
+if(files != null) {
+filecount = files.size
+}
+if(dirs != null) {
+dircount = dirs.size
+}
+if (path.parentFile == null) {
+fileList = arrayOfNulls(dircount + filecount)
+} else {
+fileList = arrayOfNulls(dircount + filecount + 1)
+fileList[i++] = PARENT_DIR
+}
+if(dirs != null) {
+Arrays.sort(dirs)
+for (dir in dirs) {
+fileList[i++] = dir.name
+}
+}
+if(files != null) {
+Arrays.sort(files)
+for (file in files) {
+fileList[i++] = file.name
+}
+}
+// refresh the user interface
+dialog.setTitle(currentPath!!.path)
+list.adapter = object : ArrayAdapter<Any?>(
+activity,
+R.layout.simple_list_item_1, fileList
+) {
+override fun getView(pos: Int, view: View?, parent: ViewGroup): View {
+val thisview = super.getView(pos, view, parent)
+(thisview as TextView).isSingleLine = true
+return thisview
+}
+}
+}
+}
+}
+/**
+* Convert a relative filename into an actual File object.
+*/
+private fun getChosenFile(fileChosen: String): File? {
+return if (fileChosen == PARENT_DIR) {
+currentPath!!.parentFile
+} else {
+File(currentPath, fileChosen)
+}
+}
+companion object {
+private const val PARENT_DIR = ".."
+}
+init {
+list.onItemClickListener =
+OnItemClickListener { parent, view, which, id ->
+val fileChosen = list.getItemAtPosition(which) as String
+val chosenFile: File? = getChosenFile(fileChosen)
+if (chosenFile != null) {
+if (chosenFile.isDirectory) {
+refresh(chosenFile)
+} else {
+if (fileListener != null) {
+fileListener!!.fileSelected(chosenFile)
+}
+dialog.dismiss()
+}
+}
+}
+dialog.setContentView(list)
+dialog.window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
+refresh(Environment.getExternalStorageDirectory())
+}
 }
 class DWindows : AppCompatActivity() {
 var firstWindow: Boolean = true
 var windowLayout: LinearLayout? = null
 }
 fun debugMessage(text: String)
 {
 Log.d(null, text)
+}
+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()
+}
+// loop till a runtime exception is triggered.
+try {
+Looper.loop()
+} catch (e2: RuntimeException) {
+}
+return retval
 }
 fun messageBox(title: String, body: String, flags: Int): Int
 {
 var retval: Int = 0

Mercurial > dwindows

comparison android/DWindows.kt @ 2526:d3f09b3f3703