小编osc*_*cat的帖子

就像我在测试一个nexus s(4.0.4提供google play服务)和avd(4.2.2 with google api)之前遇到的问题一样,在这两种情况下,locationclient getLastLocation()总是返回null.

public class MainActivity extends Activity implements LocationListener,
        GooglePlayServicesClient.ConnectionCallbacks,
        GooglePlayServicesClient.OnConnectionFailedListener {

    private LocationClient mLocationClient;
    private LocationRequest mLocationRequest;
    boolean mUpdatesRequested = false;
    boolean mConnected = false;
    SharedPreferences mPrefs;
    SharedPreferences.Editor mEditor;
    private TextView mText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mText = (TextView) findViewById(R.id.text);
        mLocationRequest = LocationRequest.create();
        mLocationRequest
                .setInterval(LocationUtils.UPDATE_INTERVAL_IN_MILLISECONDS);
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRequest
.setFastestInterval(LocationUtils.FAST_INTERVAL_CEILING_IN_MILLISECONDS);
        mUpdatesRequested = false;
        mPrefs = getSharedPreferences(LocationUtils.SHARED_PREFERENCES,
                Context.MODE_PRIVATE);
        mEditor = mPrefs.edit();
        mLocationClient = new LocationClient(this, this, this);
    }
    @Override
    public …

我们有两个名为app和lib的模块.由于我们必须将rn添加到lib中,因此我们添加了lib的build.gradle:

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile "com.facebook.react:react-native:+"  // From node_modules}

并在项目的build.gradle中

allprojects {
repositories {
    mavenLocal()
    jcenter()
    maven {
        // All of React Native (JS, Android binaries) is installed from npm
        url "$rootDir/../node_modules/react-native/android"
    }
}}

和node_modules已经下载并放在通常的文件夹中,包含package.json

"dependencies": {
"react": "15.1.0",
"react-native": "0.28.0" }

和 G:\dev>react-native -v react-native-cli: 1.0.0 react-native: 0.28.0

我们的活动有

<orderEntry type="library" exported="" name="react-native-0.28.0" level="project" />

在lib.iml,能及时发现反应原生0.28的依赖一样okhttp-3.2.0,并okio-1.8.0在工作室的外部库(从来没有使用过或前加入),

但react-native-0.28.0从未出现在工作室的外部库中,并且对代码无效.

任何想法为什么会发生？提前致谢.

更新

在我compile 'com.android.support:appcompat-v7:23.1.1'输入app模块之后react-native-0.28.0出现了依赖...这很奇怪,这是一个bug还是什么？