Convert sample to kt

Author: Jawnnypoo

adapterflowlayout/build.gradle

@@ -21,7 +21,9 @@ android {
 }
 
 dependencies {
-    compileOnly 'com.wefika:flowlayout:0.4.1'
+    compileOnly("com.wefika:flowlayout:0.4.1") {
+        exclude group: 'com.intellij', module: 'annotations'
+    }
     compileOnly project(':adapterlayout')
 }
 

adapterlayout-kotlin/build.gradle

@@ -22,7 +22,7 @@ android {
 }
 
 dependencies {
-    api "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"
+    api "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
     compileOnly project(':adapterlayout')
 }

app/build.gradle

@@ -1,5 +1,7 @@
 apply plugin: 'com.android.application'
 
+apply plugin: 'kotlin-android'
+
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion
 
@@ -23,11 +25,13 @@ android {
 }
 
 dependencies {
-
-    implementation "androidx.appcompat:appcompat:1.0.0"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "androidx.appcompat:appcompat:1.1.0"
     implementation "com.google.android.material:material:1.0.0"
 
-    implementation 'com.wefika:flowlayout:0.4.1'
+    implementation("com.wefika:flowlayout:0.4.1") {
+        exclude group: 'com.intellij', module: 'annotations'
+    }
 
     implementation project(':adapterlayout')
 

app/src/main/java/com/commit451/adapterlayout/sample/AdapterFlowLayoutActivity.java

@@ -0,0 +1,49 @@
+package com.commit451.adapterlayout.sample
+
+import android.os.Bundle
+import android.view.View
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import com.commit451.adapterflowlayout.AdapterFlowLayout
+import java.util.*
+
+class AdapterFlowLayoutActivity : AppCompatActivity() {
+
+    private lateinit var toolbar: Toolbar
+    private lateinit var adapterFlowLayout: AdapterFlowLayout
+
+    private lateinit var adapter: CheeseAdapter
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        val listener = { cheese: Cheese ->
+            Toast.makeText(this, "${cheese.name} clicked", Toast.LENGTH_SHORT)
+                .show()
+        }
+        setContentView(R.layout.activity_custom_adapter_layout)
+        toolbar = findViewById(R.id.toolbar)
+        adapterFlowLayout = findViewById(R.id.adapter_layout)
+        toolbar.setNavigationIcon(R.drawable.ic_arrow_back_24dp)
+        toolbar.setNavigationOnClickListener { onBackPressed() }
+        adapter = CheeseAdapter(listener)
+        adapterFlowLayout.adapter = adapter
+
+        findViewById<View>(R.id.add_cheese).setOnClickListener { adapter.add(Cheeses.randomCheese) }
+        findViewById<View>(R.id.remove_cheese).setOnClickListener { adapter.removeLast() }
+        findViewById<View>(R.id.new_adapter).setOnClickListener {
+            adapterFlowLayout.adapter = null
+            adapter = CheeseAdapter(listener)
+            adapterFlowLayout.adapter = adapter
+        }
+        loadCheeses()
+    }
+
+    private fun loadCheeses() {
+        val cheeses = ArrayList<Cheese>()
+        for (i in 0..4) {
+            cheeses.add(Cheeses.randomCheese)
+        }
+        adapter.setData(cheeses)
+    }
+}

app/src/main/java/com/commit451/adapterlayout/sample/AdapterFlowLayoutActivity.kt

@@ -0,0 +1,9 @@
+package com.commit451.adapterlayout.sample
+
+/**
+ * A fake model to show usage
+ */
+data class Cheese(
+    val drawable: Int,
+    var name: String
+)

app/src/main/java/com/commit451/adapterlayout/sample/Cheese.java

@@ -0,0 +1,89 @@
+package com.commit451.adapterlayout.sample
+
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.commit451.adapterlayout.AdapterLayout
+
+/**
+ * Adapter for the recyclerview, which holds cheeses
+ */
+class CheeseAdapter(private val listener: (cheese: Cheese) -> Unit) : RecyclerView.Adapter<CheeseViewHolder>() {
+
+    private val values = mutableListOf<Cheese>()
+
+    fun setData(cheeses: Collection<Cheese>) {
+        values.clear()
+        values.addAll(cheeses)
+        notifyDataSetChanged()
+    }
+
+    fun add(cheese: Cheese) {
+        values.add(cheese)
+        notifyItemInserted(values.size - 1)
+    }
+
+    fun removeLast() {
+        if (values.isNotEmpty()) {
+            val removeIndex = values.size - 1
+            remove(removeIndex)
+        }
+    }
+
+    fun remove(index: Int) {
+        values.removeAt(index)
+        notifyItemRemoved(index)
+    }
+
+    fun changeMiddle() {
+        if (values.isNotEmpty()) {
+            val index = values.size / 2
+            values[index].name = "Swiss"
+            notifyItemChanged(index)
+        }
+    }
+
+    fun changeAll() {
+        if (values.isNotEmpty()) {
+            for (cheese in values) {
+                cheese.name = "Swiss"
+            }
+            notifyItemRangeChanged(0, values.size)
+        }
+    }
+
+    fun clear() {
+        if (values.isNotEmpty()) {
+            val size = values.size
+            values.clear()
+            notifyItemRangeRemoved(0, size)
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CheeseViewHolder {
+        val holder = CheeseViewHolder.inflate(parent)
+        holder.itemView.setOnClickListener {
+            //Takes the place of holder.getAdapterPosition()
+            val position = AdapterLayout.getAdapterPosition(holder)
+            val cheese = getItemAt(position)
+            listener.invoke(cheese)
+        }
+        holder.buttonRemove.setOnClickListener {
+            val position = AdapterLayout.getAdapterPosition(holder)
+            remove(position)
+        }
+        return holder
+    }
+
+    override fun onBindViewHolder(holder: CheeseViewHolder, position: Int) {
+        val cheese = getItemAt(position)
+        holder.bind(cheese)
+    }
+
+    override fun getItemCount(): Int {
+        return values.size
+    }
+
+    private fun getItemAt(position: Int): Cheese {
+        return values[position]
+    }
+}