我从IntentService进行网络调用,但仍然收到NetworkOnMainThreadException。我的理解是IntentService总是在一个工作线程上运行,所以我很惊讶地看到这一点。关键的一点可能是我的IntentService正在调用执行网络调用的静态助手类。静态辅助类在我的主Application类中实例化。IntentService中的NetworkOnMainThreadException
我认为这仍然会在IntentService的工作线程上执行。我错过了什么?
老实说,我更喜欢关于快速代码修复的讨论。但是,如果需要的代码,应提供代码:
//MyApplication.java
public class MyApplication extends Application{
private static NetworkUtils utils;
@Override
public void onCreate() {
super.onCreate();
utils = new NetworkUtils(this);
...
}
...
}
//NetworkUtils.java
public class NetworkUtils {
private static Context context;
private static final Gson gson = new Gson();
public NetworkUtils(Context context) {
this.context = context;
}
public static final DataResponse login(String email, String password) {
//*** NetworkOnMainThreadException OCCURS HERE ***
DataResponse response = HttpConnection.put(url, json);
...
return response;
}
...
}
//LoginService.java
public class LoginService extends IntentService {
public LoginService() {
super("LoginService");
}
@Override
public void onStart(Intent intent, int startId) {
onHandleIntent(intent);
}
@Override
protected void onHandleIntent(Intent intent) {
Bundle bundle = new Bundle();
DataResponse response = NetworkUtils.login(email, password);
...
bundle.putBoolean(MyConstants.ExtraKeys.LOGGED, response.success);
MainApplication.getApplicationInstance().sendBroadCast(MyConstants.Actions.LOGIN, bundle);
}
}
//LoginActivity.java
public class LoginActivity extends ActionBarActivity implements IDialogClickListener {
...
public void onLoginButtonPressed() {
Intent intent = new Intent(MainApplication.getApplicationInstance(), LoginService.class);
this.startService(intent);
}
}
此外,logcat的:
> 04-01 18:20:41.048: VERBOSE/com.foo.foo(28942):
> com.foo.foo.network.HttpConnection.execute - METHOD: PUT
> 04-01 18:20:41.068: ERROR/com.foo.foo(28942):
> com.foo.foo.social.NetworkUtils.login - class
> android.os.NetworkOnMainThreadException: null
> 04-01 18:20:41.169: DEBUG/com.foo.foo(28942):
> com.foo.foo.MainActivity$MyReceiver.onReceive - BROADCAST RECEIVED:
> [email protected] - Intent { act=com.foo.foo.login
> dat=com.foo.foo.scheme://data/1364854841079 (has extras) }
> 04-01 18:20:41.169: INFO/com.foo.foo(28942):
> com.foo.foo.activity.LoginActivity.setData - ACTION: com.foo.foo.login
> - ISERROR: true
SOLUTION
根本的问题是遗留代码位是在呼唤onHandleIntent
明确。在上述LoginService.java:
@Override
public void onStart(Intent intent, int startId) {
onHandleIntent(intent);
}
这是造成onHandleIntent代码给主线程上运行,因为它是被从调用onStart事件(这显然对主线程中运行)调用。
你错过了一些你的代码,所以我们可以看到发生了什么。请发布一些代码,logcat输出,并指向错误来自的行。 – MCeley