我创建了一个扩展IntentService的类,并且我想从一个不是Activity类的类中启动服务,因此我没有访问Context对象。我在文档或网络中找不到此类示例。这是否可能?
我创建了一个扩展IntentService的类,并且我想从一个不是Activity类的类中启动服务,因此我没有访问Context对象。我在文档或网络中找不到此类示例。这是否可能?
若想从非 Activity 类启动服务,则需要将当前 Activity 上下文传递给非 Activity 类,方法如下:
public class NonActivity {
public Context context;
public NonActivity(Context context){
this.context=context;
}
public void startServicefromNonActivity(){
Intent intent=new Intent(context,yourIntentService.class);
context.startService(intent);
}
}
并将当前上下文传递为:
public class AppActivity extends Activity {
NonActivity nonactiityobj;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
nonactiityobj=new NonActivity(CuttentActivity.this);
//start service here
nonactiityobj.startServicefromNonActivity();
}
}
public class MyService {
Context context ;
public MyService(Context cont) {
this.context = context ;
}
public void StartMyService()
{
Intent i = new Intent(context,YourService.class);
context.startService(i);
}
public void StopMyService()
{
Intent i = new Intent(context,YourService.class);
context.stopService(i);
}
}
这只是创建该类的对象
MyService mySevice ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myService = new MyService(this);
//For Startting Service
myService.StartMyService();
//For Stopping Service
myService.StopMyService();
}