feat: add kotlin change

Author: Rick

app/src/main/java/com/huynn109/increase_decrease_button_demo/MainActivity.kt

@@ -11,6 +11,9 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         val btn = findViewById<IncreaseDecreaseButton>(R.id.inDeButton)
+        btn.initNumber(3)
+        btn.setMaxNumber(15)
+        btn.setMinNumber(2)
         btn.onChangeListener { number, isIncrease ->
             Toast.makeText(this.applicationContext, "$number", Toast.LENGTH_SHORT).show()
             Timber.d("onCreate: ${btn.getCurrentNumber()}")

app/src/main/res/layout/activity_main.xml

@@ -11,7 +11,6 @@
         app:activeIconColor="@color/increase_decrease_lib_active"
         app:minNumber="1"
         app:maxNumber="10"
-        app:initNumber="2"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         app:layout_constraintBottom_toBottomOf="parent"

lib/src/main/java/com/huynn109/IncreaseDecreaseButton.kt

@@ -11,7 +11,7 @@ import kotlin.properties.Delegates
 
 
 class IncreaseDecreaseButton @JvmOverloads constructor(
-    context: Context, private val attrs: AttributeSet? = null
+    context: Context, private val attrs: AttributeSet? = null,
 ) : LinearLayout(context, attrs) {
 
     private var iconSize: Float = 0.0f
@@ -88,6 +88,23 @@ class IncreaseDecreaseButton @JvmOverloads constructor(
         }
     }
 
+    fun setMaxNumber(maxNumber: Int) {
+        if (maxNumber <= minNumber)
+            this.maxNumber = minNumber
+        else this.maxNumber = maxNumber
+    }
+
+    fun setMinNumber(minNumber: Int) {
+        if (maxNumber <= minNumber)
+            this.minNumber = maxNumber
+        else this.minNumber = minNumber
+    }
+
+    fun initNumber(initNumber: Int) {
+        this.initNumber = initNumber
+        bindViewRes()
+    }
+
     private fun initViewId() {
         increaseButton = findViewById(R.id.increaseButton)
         decreaseButton = findViewById(R.id.decreaseButton)