0
林在Android的初学者开始。尝试从MainActivity启动服务,但失败。下面是调用方法的按钮的onClick听者服务无法在Android的
@Override
public void onClick(View v)
{
Intent i = new Intent(getApplicationContext(), MyService.class);
try
{
startActivity(i);
}
catch(Exception e)
{
Toast.makeText(getApplicationContext(), "Failed to start MyService", Toast.LENGTH_SHORT).show();
}
}
该处如下
public class MyService extends Service
{
@Override
public void onStart(Intent intent, int startId)
{
// TODO: Implement this method
super.onStart(intent, startId);
Toast.makeText(getApplicationContext(), "onStart method in MyServive class", Toast.LENGTH_SHORT).show();
}
@Override
public IBinder onBind(Intent p1)
{
// TODO: Implement this method
Toast.makeText(getApplicationContext(), "onBind method in MyServive class", Toast.LENGTH_SHORT).show();
return null;
}
@Override
public void onCreate()
{
// TODO: Implement this method
super.onCreate();
Toast.makeText(getApplicationContext(), "onCreate method in MyServive class", Toast.LENGTH_SHORT).show();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
// TODO: Implement this method
Toast.makeText(getApplicationContext(), "onStartCommand method in MyServive class", Toast.LENGTH_SHORT).show();
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy()
{
// TODO: Implement this method
super.onDestroy();
Toast.makeText(getApplicationContext(), "onDestroy method in MyServive class", Toast.LENGTH_SHORT).show();
}
}
清单声明低于
<Service
android:enabled="true"
android:name=".MyService"
android:label="MyService"
>
</Service>
的东西可能变得无法启动?不显示任何方法的烤面包
对于启动服务,您应该使用startService而不是startActivity – Ameer