first commit

app/src/main/java/de/htwk/s3/MainActivity.kt

@@ -0,0 +1,45 @@
+package de.htwk.s3
+
+import android.content.Intent
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import kotlinx.android.synthetic.main.activity_main.*
+
+class MainActivity : AppCompatActivity() {
+
+    val SAVED_PARCEL_KEY = "saved_parcel_key"
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        button.setOnClickListener {
+            val intent = Intent(this,SecondActivity::class.java)
+            val parameterObject = ParameterObject(editText.text.toString(),checkBox.isChecked,seekBar.progress)
+            intent.putExtra(SecondActivity.PARAMETER_OBJECT_KEY,parameterObject)
+            startActivity(intent)
+        }
+    }
+
+    override fun onSaveInstanceState(outState: Bundle?) {
+        super.onSaveInstanceState(outState)
+        val parameterObject = ParameterObject(editText.text.toString(),checkBox.isChecked,seekBar.progress)
+        outState?.putParcelable(SAVED_PARCEL_KEY,parameterObject)
+    }
+
+    override fun onRestoreInstanceState(savedInstanceState: Bundle?) {
+        super.onRestoreInstanceState(savedInstanceState)
+        savedInstanceState?.let {
+            if (it.containsKey(SAVED_PARCEL_KEY)){
+
+                val parameterObject: ParameterObject? = it.getParcelable(SAVED_PARCEL_KEY)
+                Log.i("Parcel",parameterObject.toString())
+                editText.setText(parameterObject?.string)
+                checkBox.isChecked = parameterObject?.bool ?: false
+                seekBar.progress = parameterObject?.int ?: 50
+            }
+        }
+    }
+
+}

app/src/main/java/de/htwk/s3/ParameterObject.kt

@@ -0,0 +1,33 @@
+package de.htwk.s3
+
+import android.os.Parcel
+import android.os.Parcelable
+
+data class ParameterObject(val string: String?, val bool: Boolean, val int: Int) : Parcelable{
+    constructor(parcel: Parcel) : this(
+        parcel.readString(),
+        parcel.readByte() != 0.toByte(),
+        parcel.readInt()
+    ) {
+    }
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeString(string)
+        parcel.writeByte(if (bool) 1 else 0)
+        parcel.writeInt(int)
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<ParameterObject> {
+        override fun createFromParcel(parcel: Parcel): ParameterObject {
+            return ParameterObject(parcel)
+        }
+
+        override fun newArray(size: Int): Array<ParameterObject?> {
+            return arrayOfNulls(size)
+        }
+    }
+}

app/src/main/java/de/htwk/s3/SecondActivity.kt

@@ -0,0 +1,29 @@
+package de.htwk.s3
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import kotlinx.android.synthetic.main.activity_second.*
+
+class SecondActivity : AppCompatActivity() {
+
+    companion object {
+        val EDITTEXT_KEY = "edittext_key"
+        val CHECKBOX_KEY = "checkbox_key"
+        val SEEKBAR_KEY = "seekbar_key"
+        val PARAMETER_OBJECT_KEY = "parameter_object_key"
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_second)
+
+        intent.extras?.let {
+            if(it.containsKey(PARAMETER_OBJECT_KEY)) {
+                val parameterObject: ParameterObject? = it.getParcelable(PARAMETER_OBJECT_KEY)
+                textView.text = parameterObject?.string
+                textView2.text = parameterObject?.bool.toString()
+                textView3.text = parameterObject?.int.toString()
+            }
+        }
+    }
+}