how to open configure portable Wi-Fi hotspot setting by onclick?

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how to open the following directory:settings/wireless and networks/Tethering and portable hotspot/portable Wi-Fi hotspot settings/configure portable Wi-Fi hotspot/ on button click? i want to achieve this using onClick method not id method. below is my code

<RadioButton
        android:onClick="togglewifi"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:checked="true"
        android:text="Toggle Wifi" />


public void togglewifi(View view) { 
    Intent intent = new Intent(             );
    startActivity(intent);
}
6 Answers

In case any one lands here like me, on Android 8, I used this to open up the setup Hotspot page itself.

public static final String SETTINGS_PACKAGE = "com.android.settings";
public static final String HOTSPOT_SETTINGS_CLASS = "com.android.settings.Settings$TetherWifiSettingsActivity";

private void launchHotspotSettings(){
    Intent intent = new Intent(Intent.ACTION_MAIN, null);
    ComponentName componentName = new ComponentName(SETTINGS_PACKAGE, HOTSPOT_SETTINGS_CLASS);
    intent.setComponent(componentName);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(intent);
}

Works on my device. Let me know if it works on yours. After a bit of research I realized that this class changes per device brand. Eg. For Samsung, use

public static final String HOTSPOT_SETTINGS_CLASS = "com.android.settings.Settings$WifiApSettingsActivity";

By the way @Drew answer still works on Android 8.

Activate Tethering in Java:

private void activeTethering(){
    Intent tetherSettings = new Intent();
    tetherSettings.setClassName("com.android.settings", "com.android.settings.TetherSettings");

    startActivity(tetherSettings);
}

and in Kotlin:

private fun activeTethering(){
    val tetherSettings = new Intent().apply {
        setClassName("com.android.settings", "com.android.settings.TetherSettings")
    }

    startActivity(tetherSettings);
}

This code will work for you all your devices including SAMSUNGS.

   Intent intent=new Intent(Intent.ACTION_MAIN,null);
            intent.addCategory(Intent.CATEGORY_LAUNCHER);
            final ComponentName componentName;
            componentName    =new ComponentName("com.android.settings","com.android.settings.TetherSettings");
            intent.setComponent(componentName);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);

Java:

final Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
final ComponentName cn = new ComponentName("com.android.settings", "com.android.settings.TetherSettings");
intent.setComponent(cn);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity( intent);

Kotlin:

    val intent = Intent(Intent.ACTION_MAIN, null)
    intent.addCategory(Intent.CATEGORY_LAUNCHER)
    val cn = ComponentName("com.android.settings", "com.android.settings.TetherSettings")
    intent.component = cn
    intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
    startActivity(intent)
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