MainActiviity

package com.filipmarkoski.lab_intents

import android.app.Activity
import android.content.Intent
import android.net.Uri
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.provider.ContactsContract
import android.view.View
import android.widget.TextView
import android.provider.MediaStore
import android.util.Log
import android.widget.ImageView
import android.widget.Toast
import java.io.IOException
import android.R.attr.path
import android.content.ContentResolver
import android.provider.OpenableColumns


@Suppress("NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS")
class MainActivity : AppCompatActivity() {


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        // val btnExplicit:Button = findViewById(R.id.btnExplicit)


        val extras: Bundle? = intent.extras
        if (extras != null) {
            val textView: TextView = findViewById(R.id.textView)
            val response: String? = extras.getString("response")

            textView.text = response
        }

        /* other way
        textView.text = intent.getStringExtra("response")*/
    }

    fun callExplicitActivity(view: View) {
        val intent = Intent(this, ExplicitActivity::class.java).apply {
            putExtra("value", "This is a message from MainActivity.")
        }
        startActivity(intent)
    }

    fun callImplicitActivity(view: View) {
        // Create the text message with a string
        val intent = Intent()
        intent.action = ImplicitActivity.IMPLICIT_ACTION

        // Verify that the intent will resolve to an activity
        if (intent.resolveActivity(packageManager) != null) {
            startActivity(intent)
        }
    }

    fun shareContent(view: View) {
        // Create the text message with a string
        val intent = Intent().apply {
            action = Intent.ACTION_SEND
            putExtra(Intent.EXTRA_TITLE, "MPiP Send Title")
            putExtra(Intent.EXTRA_SUBJECT, "MPiP Send Title")
            putExtra(Intent.EXTRA_TEXT, "Content send from MainActivity\nhttps://duckduckgo.com")
            type = "text/plain"
        }

        // Verify that the intent will resolve to an activity
        if (intent.resolveActivity(packageManager) != null) {
            startActivity(Intent.createChooser(intent, "Share"))
        }
    }

    fun selectImageAndDisplay(view: View) {
        // Create the text message with a string
        val intent = Intent().apply {
            action = Intent.ACTION_GET_CONTENT
            type = "image/*"
        }


        // Verify that the intent will resolve to an activity
        if (intent.resolveActivity(packageManager) != null) {
            startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST_TO_APP); }
    }

    fun selectImageToImageView(view: View) {
        // Create the text message with a string
        val intent = Intent().apply {
            action = Intent.ACTION_GET_CONTENT
            type = "image/*"
        }


        // Verify that the intent will resolve to an activity
        if (intent.resolveActivity(packageManager) != null) {
            startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST); }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)

        if (requestCode == PICK_IMAGE_REQUEST && resultCode == Activity.RESULT_OK && data != null && data.data != null) {

            val uri = data.data

            try {
                val bitmap = MediaStore.Images.Media.getBitmap(contentResolver, uri)
                // Log.d(TAG, String.valueOf(bitmap));

                val imageView: ImageView = findViewById(R.id.imageView)
                imageView.setImageBitmap(bitmap)
            } catch (e: IOException) {
                e.printStackTrace()
            }

        }

        if (requestCode == PICK_IMAGE_REQUEST_TO_APP && resultCode == Activity.RESULT_OK && data != null && data.data != null) {

            val uri = data.data

            Toast.makeText(this, uri.toString(), Toast.LENGTH_LONG).show()
            Log.i(TAG, uri.toString())

            try {

                data.data?.let { returnUri ->
                    contentResolver.query(returnUri, null, null, null, null)
                }?.use { cursor ->
                    /*
                     * Get the column indexes of the data in the Cursor,
                     * move to the first row in the Cursor, get the data,
                     * and display it.
                     */
                    val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
                    val fileName = cursor.getString(nameIndex)
                    cursor.moveToFirst()

                    Log.i(TAG, fileName)

                    val intent = Intent().apply {
                        action = Intent.ACTION_VIEW
                        type = "image/*"

                    }
                    intent.data = Uri.parse(fileName)

                    startActivity(intent)
                }




                // intent.setDataAndType(Uri.parse("file://" + "/sdcard/test.jpg"), "image/*");


            } catch (e: IOException) {
                e.printStackTrace()
            }

        }
    }

    companion object {
        const val PICK_IMAGE_REQUEST = 1
        const val PICK_IMAGE_REQUEST_TO_APP = 2

        const val TAG = "filipmarkoski.com"
    }

}