MyService.java:
package com.ramsandroid.demo;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.widget.Toast;
public class MyService extends Service {
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
Toast.makeText(getApplicationContext(),
"service created",Toast.LENGTH_SHORT).show();
}
@Override
public int onStartCommand(Intent intent, int flags,
int startId) {
Toast.makeText(getApplicationContext(),
"service started",Toast.LENGTH_SHORT).show();
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
super.onDestroy();
Toast.makeText(getApplicationContext(),
"service stopped",Toast.LENGTH_SHORT).show();
}
}
activity_main.java:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="com.ramsandroid.demo.MainActivity">
<Switch
android:id="@+id/switch1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="27dp"
android:text="Switch"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
MainActivity.java:
package com.ramsandroid.demo;
import android.app.ActivityManager;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.Switch;
import java.util.List;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActivityManager am = (ActivityManager)
this.getSystemService(ACTIVITY_SERVICE);
List<ActivityManager.RunningServiceInfo> rs =
am.getRunningServices(Integer.MAX_VALUE);
Switch aSwitch=(Switch)findViewById(R.id.switch1);
for(ActivityManager.RunningServiceInfo runningServiceInfo:rs){
String sname = runningServiceInfo.service.getClassName();
Log.d("MainActivity",sname);
if(sname.equals("com.ramsandroid.demo.MyService")){
aSwitch.setChecked(true);
}
}
aSwitch.setOnCheckedChangeListener
(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged
(CompoundButton compoundButton, boolean b) {
Intent intent=
new Intent(getApplicationContext(),MyService.class);
if(b){
startService(intent);
}else{
stopService(intent);
}
}
});
}
}