show an explanation toast at clicking a widget

app/build.gradle

@@ -43,5 +43,5 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:28e3b108e7'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:28a2a4ad46'
 }

app/src/main/kotlin/com/simplemobiletools/launcher/adapters/WidgetsAdapter.kt

@@ -8,6 +8,7 @@ import android.widget.LinearLayout
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import com.simplemobiletools.commons.extensions.getProperTextColor
+import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.launcher.R
 import com.simplemobiletools.launcher.activities.SimpleActivity
 import com.simplemobiletools.launcher.helpers.WIDGET_LIST_ITEMS_HOLDER
@@ -85,6 +86,10 @@ class WidgetsAdapter(
                 .load(widget.widgetPreviewImage)
                 .fitCenter()
                 .into(widgetPreview)
+
+            widgetPreview.setOnClickListener {
+                activity.toast(R.string.touch_hold_widget)
+            }
         }
     }
 

app/src/main/res/values/strings.xml

@@ -1,6 +1,7 @@
 <resources>
     <string name="app_name">Simple Launcher</string>
     <string name="app_launcher_name">Launcher</string>
+    <string name="touch_hold_widget">Long press the widget and drag it on your home screen</string>
     <!--
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res