- minSdk update to 14.

Author: iammert

app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "26.0.0"
     defaultConfig {
         applicationId "iammert.com.expandablelayout"
-        minSdkVersion 15
+        minSdkVersion 14
         targetSdkVersion 26
         versionCode 1
         versionName "1.0"
@@ -31,6 +31,5 @@ dependencies {
     })
     compile 'com.android.support:appcompat-v7:26.+'
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support.constraint:constraint-layout:1.0.2'
     compile project(':expandablelib')
 }

app/src/main/AndroidManifest.xml

@@ -2,9 +2,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="iammert.com.expandablelayout">
 
-    <application android:allowBackup="true" android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true" android:theme="@style/AppTheme">
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/iammert/com/expandablelayout/MainActivity.java

@@ -5,6 +5,7 @@
 import android.view.View;
 import android.widget.TextView;
 
+import iammert.com.expandablelib.ExpandCollapseListener;
 import iammert.com.expandablelib.ExpandableLayout;
 import iammert.com.expandablelib.Section;
 
@@ -36,12 +37,18 @@ public void render(View view, Fruit model, boolean isExpanded) {
         sectionLinearLayout.addSection(getSection());
         sectionLinearLayout.addSection(getSection());
 
-        sectionLinearLayout.setExpandListener((parentIndex, parent, view) -> {
-            view.findViewById(R.id.arrow).setBackgroundResource(R.drawable.arrow_up);
+        sectionLinearLayout.setExpandListener(new ExpandCollapseListener.ExpandListener<FruitCategory>() {
+            @Override
+            public void onExpanded(int parentIndex, FruitCategory parent, View view) {
+
+            }
         });
 
-        sectionLinearLayout.setCollapseListener((parentIndex, parent, view) -> {
-            view.findViewById(R.id.arrow).setBackgroundResource(R.drawable.arrow_down);
+        sectionLinearLayout.setCollapseListener(new ExpandCollapseListener.CollapseListener<FruitCategory>() {
+            @Override
+            public void onCollapsed(int parentIndex, FruitCategory parent, View view) {
+
+            }
         });
 
     }

expandablelib/build.gradle

@@ -7,7 +7,7 @@ android {
 
 
     defaultConfig {
-        minSdkVersion 15
+        minSdkVersion 14
         targetSdkVersion 26
         versionCode 1
         versionName "1.0"