Android Detect Connected Network type in Android Studio using Kotlin.
Last updated Dec 18, 2021 In this android example, we will see how to Detect Connected Network Type either Mobile or WIFI in Android Studio by using Kotlin Language.
Implementation:
Step 1: Create a new Project in android studio.
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Go to File > New > New Project > Empty Activity > Next > Enter Name > Select Language Kotlin > Finish
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Step 2: Go to activity_main.xml file and add the following code
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Current Network Type"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="@+id/type"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="24sp"
android:textColor="@color/black"
android:textStyle="bold" />
<Button
android:id="@+id/checkBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Check"></Button>
</LinearLayout>
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Step 3: Add permission to the AndroidManifest.xml file above tag.
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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Step 4: Open MainActivity.kt file and add the following code.
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lateinit var type : TextView
lateinit var check: Button
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
type = findViewById(R.id.type)
check = findViewById(R.id.checkBtn)
check.setOnClickListener{
if (checkNetwork()) {
Toast.makeText(this, "Connected With Network", Toast.LENGTH_SHORT).show()
}
else if (!checkNetwork()) {
type.text = "Not Connected"
Toast.makeText(this, "Not Connected", Toast.LENGTH_SHORT).show()
}
}
}
private fun checkNetwork(): Boolean {
val connManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val networkInfo = connManager.activeNetworkInfo
if(networkInfo!= null){
if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
type.text = networkInfo.typeName
// connected to wifi
return true;
} else{
networkInfo.getType() == ConnectivityManager.TYPE_MOBILE
type.text = networkInfo.typeName
return true
};
}
// type.text = networkInfo!!.typeName
return false
}
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Step 5: Run the app on emulator or real device, you will get the output as in Video
Complete Source Code of Detect Connected Network type Android Example
activity_main.xml file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Current Network Type"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="@+id/type"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="24sp"
android:textColor="@color/black"
android:textStyle="bold" />
<Button
android:id="@+id/checkBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Check"></Button>
</LinearLayout>
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MainActivity.kt file
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import android.content.Context
import android.net.ConnectivityManager
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
class MainActivity : AppCompatActivity() {
lateinit var type : TextView
lateinit var check: Button
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
type = findViewById(R.id.type)
check = findViewById(R.id.checkBtn)
check.setOnClickListener{
if (checkNetwork()) {
Toast.makeText(this, "Connected With Network", Toast.LENGTH_SHORT).show()
}
else if (!checkNetwork()) {
type.text = "Not Connected"
Toast.makeText(this, "Not Connected", Toast.LENGTH_SHORT).show()
}
}
}
private fun checkNetwork(): Boolean {
val connManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val networkInfo = connManager.activeNetworkInfo
if(networkInfo!= null){
if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
type.text = networkInfo.typeName
// connected to wifi
return true;
} else{
networkInfo.getType() == ConnectivityManager.TYPE_MOBILE
type.text = networkInfo.typeName
return true
};
}
// type.text = networkInfo!!.typeName
return false
}
}
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AndroidManifest.xml file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.networkType">
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<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/Theme.XmlParser">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
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Conclusion: In this article we have covered how to detect connected network type in Android Studio by using Kotlin Language.
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