This example demonstrates how to hide a soft keyboard on android after clicking outside EditText using Kotlin.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="https://schemas.android.com/apk/res/android" xmlns:tools="https://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="16dp" tools:context="MainActivity"> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:hint="Enter text here" android:textColor="@android:color/background_dark" android:textSize="20sp" /> <EditText android:id="@+id/editText" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:onClick="setText" android:text="Set Text" android:textStyle="bold" /> </LinearLayout>
Step 3 − Add the following code to src/MainActivity.kt
import android.content.Context import android.os.Bundle import android.view.View import android.view.inputmethod.InputMethodManager import android.widget.EditText import android.widget.TextView import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var editText: EditText lateinit var textView: TextView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) editText = findViewById(R.id.editText) textView = findViewById(R.id.textView) title = "KotlinApp" } fun setText(view: View) { val newText = editText.text.toString() textView.text = newText closeKeyBoard() } private fun closeKeyBoard() { val view = this.currentFocus if (view != null) { val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager imm.hideSoftInputFromWindow(view.windowToken, 0) } } }
Step 4 − Add the following code to androidManifest.xml
<manifest xmlns:android="https://schemas.android.com/apk/res/android" package="app.com.q11"> <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" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen