小编dev*_*mao的帖子

我根据谷歌文档关于位置服务开发了一个示例应用程序.运行它我找到MainActivity Class Found的崩溃,但是如果我删除位置回调的实现GooglePlayServicesClient.ConnectionCallbacks和GooglePlayServicesClient.OnConnectionFailedListener它就会启动.

我正在使用Android Studio,我确信我配置了Google Play服务和AVD(Nexus 7 Google API 19).

这是主要活动:

package com.demo.app;

import android.support.v7.app.ActionBarActivity;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationRequest;

public class MainActivity extends ActionBarActivity implements
             GooglePlayServicesClient.ConnectionCallbacks,
             GooglePlayServicesClient.OnConnectionFailedListener {

  // Handles to UI widgets
  private TextView mLatLng;
  private TextView mAddress;
  private ProgressBar mActivityIndicator;
  private TextView mConnectionState;
  private TextView mConnectionStatus;

  // A request to connect to Location Services …

我需要按优先级范围获取数据,就像JS中的startAt/endAt一样,但是在REST中.可能吗？

我的示例代码:

 public class A {

  @OneToMany
  @OrderColumn(name = "ORDER")
  private List<B> bList;
  ...
 }

 public class B {

  @Column(name = "ORDER")
  private Integer order; // I need this field because I want 
                         // to use the ordering field in my query.
  ...
 }

使用此代码,EclipseLink尝试创建"ORDER"列2次抛出异常而不创建B表.

谢谢.

如何在WebStorm上使用CSS类自动完成从CDN导入的CSS文件,如下所示？

<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0-rc1/css/bootstrap.min.css">