android - onStartCommand 在服务 android 中只调用一次？

Question

我有一个简单的服务需要在后台运行。下面是该服务的代码。我想重复运行 onStartCommand 中的代码只是为了测试目的我显示了 toast。但是 Toast 也只调用一次

import android.app.IntentService;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.net.wifi.WifiManager;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.support.annotation.Nullable;
import android.util.Log;
import android.widget.Toast;




/**
 * An {@link IntentService} subclass for handling asynchronous task requests in
 * a service on a separate handler thread.
 * <p>
 * TODO: Customize class - update intent actions and extra parameters.
 */
public class WiFiCheck extends Service {




    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        // Let it continue running until it is stopped.


        Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();


        return super.onStartCommand(intent, flags, startId);

    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }



    /**
     * Handle action Foo in the provided background thread with the provided
     * parameters.
     */
    private void handleActionFoo(String param1, String param2) {
        // TODO: Handle action Foo
        throw new UnsupportedOperationException("Not yet implemented");
    }

    /**
     * Handle action Baz in the provided background thread with the provided
     * parameters.
     */
    private void handleActionBaz(String param1, String param2) {
        // TODO: Handle action Baz
        throw new UnsupportedOperationException("Not yet implemented");
    }
}

但是 onStartCommand 只调用一次，只调用一次。

我用过

return START_STICKY;

启动服务如下

        startService(new Intent(this, WiFiCheck.class));

但还是没用。求助

Answer 1

如果重新启动服务，Toast 将被调用两次或更多次

例如

startService(new Intent(this, WiFiCheck.class));
startService(new Intent(this, WiFiCheck.class));

new Intent 是 onStartCommand(Intent intent