In this post, we will see how to enable or disable Bluetooth in android programmatically.
It is very simple to enable or disable bluetooth from android code.
For enabling Bluetooth:
For disabling Bluetooth:
So you can enable or disable Bluetooth using BluetoothAdapter class.
You need to add extra permissions in AndroidManifest.xml to enable or disable Bluetooth.
It is very simple to enable or disable bluetooth from android code.
For enabling Bluetooth:
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BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.enable(); |
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BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.disable(); |
You need to add extra permissions in AndroidManifest.xml to enable or disable Bluetooth.
Source code:
Step 1 :
Create an android application project named “EnableDisableBluetoothApp”.
Step 2:
Add following permissions in AndoridManifest.xml.
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<uses-permission android:name="android.permission.BLUETOOTH"/> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/> Go to app -> src -> main -> AndroidManifest.xml and add above permissions. AndroidManifest.xml will look like below xml. |
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<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.java2blog.enabledisablebluetoothapp"> <uses-permission android:name="android.permission.BLUETOOTH"/> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" 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> |
Step 3 :
Change res ->layout -> activity_main.xml as below:
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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_margin="16dp" android:gravity="center" android:orientation="vertical"> <ToggleButton android:id="@+id/toggleButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checked="false" /> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="16dp" /> </LinearLayout> |
Step 4:
Change src/main/packageName/MainActivity.java as below:
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package com.java2blog.enabledisablebluetoothapp; import android.bluetooth.BluetoothAdapter; import android.content.Context; import android.net.wifi.WifiManager; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.CompoundButton; import android.widget.TextView; import android.widget.ToggleButton; import com.java2blog.enabledisablebluetoothapp.R; public class MainActivity extends AppCompatActivity { ToggleButton toggleButton; TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Getting toggle button and textView from activity_main toggleButton = (ToggleButton) findViewById(R.id.toggleButton); textView = (TextView) findViewById(R.id.textView); // Put listener on toggle button toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton compoundButton, boolean checked) { if (checked) { textView.setText("Bluetooth is ON"); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.enable(); } else { textView.setText("Bluetooth is OFF"); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.disable(); } } }); // For initial setting if (toggleButton.isChecked()) { textView.setText("Bluetooth is ON"); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.enable(); } else { textView.setText("Bluetooth is OFF"); BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); adapter.disable(); } } } |
Step 5:
Run the app
When you run the app, you will get below screen:
When you click on toggle button, you will get below screen:
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