블루투스 끄고 키는 버튼 만들기

activity_main.xml

 

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
 
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="블루투스를 껐다 켜 보세요!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
 
    <ToggleButton
        android:id="@+id/toggleButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:text="연결하기"
        app:layout_constraintBottom_toTopOf="@+id/textView"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />
 
</android.support.constraint.ConstraintLayout>

 

 

 

 

MainActivity.java

 

package com.example.soyoung.permissioncreate;
 
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.Intent;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;
 
import java.util.logging.Handler;
import java.util.logging.LogRecord;
 
public class MainActivity extends AppCompatActivity {
    private ToggleButton toggleButton;
    private TextView textView;
    private BluetoothAdapter bAdapter = BluetoothAdapter.getDefaultAdapter();
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        toggleButton = findViewById(R.id.toggleButton);
        textView = findViewById(R.id.textView);
 
        toggleButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (bAdapter == null) {
                    Toast.makeText(getApplicationContext(), "Bluetooth Not Supported", Toast.LENGTH_SHORT).show();
                } else {
                    if (!bAdapter.isEnabled()) {
                        startActivityForResult(new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE), 1);
                        Toast.makeText(getApplicationContext(), "Bluetooth Turned On", Toast.LENGTH_SHORT).show();
                    } else if (bAdapter.disable()) {
                        Toast.makeText(getApplicationContext(), "Bluetooth Turned OFF", Toast.LENGTH_SHORT).show();
                    };
                }
            }
        });
    }
 
}
 

 

 

 

 

AndroidManifest.xml

 

<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />